Merge branch 'master' of git+ssh://openadk.org/git/openadk

1 files changed, 0 insertions, 15066 deletions

diff --git a/target/linux/patches/2.6.31.4/yaffs2.patch b/target/linux/patches/2.6.31.4/yaffs2.patch
deleted file mode 100644
index a19ab9c84..000000000
--- a/target/linux/patches/2.6.31.4/yaffs2.patch
+++ /dev/null
@@ -1,15066 +0,0 @@
-diff -Nur linux-2.6.30.orig/fs/Kconfig linux-2.6.30/fs/Kconfig
---- linux-2.6.30.orig/fs/Kconfig	2009-06-10 05:05:27.000000000 +0200
-+++ linux-2.6.30/fs/Kconfig	2009-06-11 09:21:04.000000000 +0200
-@@ -162,6 +162,10 @@
- source "fs/befs/Kconfig"
- source "fs/bfs/Kconfig"
- source "fs/efs/Kconfig"
-+
-+# Patched by YAFFS
-+source "fs/yaffs2/Kconfig"
-+
- source "fs/jffs2/Kconfig"
- # UBIFS File system configuration
- source "fs/ubifs/Kconfig"
-diff -Nur linux-2.6.30.orig/fs/Makefile linux-2.6.30/fs/Makefile
---- linux-2.6.30.orig/fs/Makefile	2009-06-10 05:05:27.000000000 +0200
-+++ linux-2.6.30/fs/Makefile	2009-06-11 09:21:31.000000000 +0200
-@@ -124,3 +124,4 @@
- obj-$(CONFIG_BTRFS_FS)		+= btrfs/
- obj-$(CONFIG_GFS2_FS)           += gfs2/
- obj-$(CONFIG_EXOFS_FS)          += exofs/
-+obj-$(CONFIG_YAFFS_FS)		+= yaffs2/
-diff -Nur linux-2.6.30.orig/fs/Makefile.pre.yaffs linux-2.6.30/fs/Makefile.pre.yaffs
---- linux-2.6.30.orig/fs/Makefile.pre.yaffs	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/Makefile.pre.yaffs	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,126 @@
-+#
-+# Makefile for the Linux filesystems.
-+#
-+# 14 Sep 2000, Christoph Hellwig <hch@infradead.org>
-+# Rewritten to use lists instead of if-statements.
-+# 
-+
-+obj-y :=	open.o read_write.o file_table.o super.o \
-+		char_dev.o stat.o exec.o pipe.o namei.o fcntl.o \
-+		ioctl.o readdir.o select.o fifo.o dcache.o inode.o \
-+		attr.o bad_inode.o file.o filesystems.o namespace.o \
-+		seq_file.o xattr.o libfs.o fs-writeback.o \
-+		pnode.o drop_caches.o splice.o sync.o utimes.o \
-+		stack.o
-+
-+ifeq ($(CONFIG_BLOCK),y)
-+obj-y +=	buffer.o bio.o block_dev.o direct-io.o mpage.o ioprio.o
-+else
-+obj-y +=	no-block.o
-+endif
-+
-+obj-$(CONFIG_BLK_DEV_INTEGRITY) += bio-integrity.o
-+obj-y				+= notify/
-+obj-$(CONFIG_EPOLL)		+= eventpoll.o
-+obj-$(CONFIG_ANON_INODES)	+= anon_inodes.o
-+obj-$(CONFIG_SIGNALFD)		+= signalfd.o
-+obj-$(CONFIG_TIMERFD)		+= timerfd.o
-+obj-$(CONFIG_EVENTFD)		+= eventfd.o
-+obj-$(CONFIG_AIO)               += aio.o
-+obj-$(CONFIG_FILE_LOCKING)      += locks.o
-+obj-$(CONFIG_COMPAT)		+= compat.o compat_ioctl.o
-+
-+nfsd-$(CONFIG_NFSD)		:= nfsctl.o
-+obj-y				+= $(nfsd-y) $(nfsd-m)
-+
-+obj-$(CONFIG_BINFMT_AOUT)	+= binfmt_aout.o
-+obj-$(CONFIG_BINFMT_EM86)	+= binfmt_em86.o
-+obj-$(CONFIG_BINFMT_MISC)	+= binfmt_misc.o
-+
-+# binfmt_script is always there
-+obj-y				+= binfmt_script.o
-+
-+obj-$(CONFIG_BINFMT_ELF)	+= binfmt_elf.o
-+obj-$(CONFIG_COMPAT_BINFMT_ELF)	+= compat_binfmt_elf.o
-+obj-$(CONFIG_BINFMT_ELF_FDPIC)	+= binfmt_elf_fdpic.o
-+obj-$(CONFIG_BINFMT_SOM)	+= binfmt_som.o
-+obj-$(CONFIG_BINFMT_FLAT)	+= binfmt_flat.o
-+
-+obj-$(CONFIG_FS_MBCACHE)	+= mbcache.o
-+obj-$(CONFIG_FS_POSIX_ACL)	+= posix_acl.o xattr_acl.o
-+obj-$(CONFIG_NFS_COMMON)	+= nfs_common/
-+obj-$(CONFIG_GENERIC_ACL)	+= generic_acl.o
-+
-+obj-$(CONFIG_QUOTA)		+= dquot.o
-+obj-$(CONFIG_QFMT_V1)		+= quota_v1.o
-+obj-$(CONFIG_QFMT_V2)		+= quota_v2.o
-+obj-$(CONFIG_QUOTA_TREE)	+= quota_tree.o
-+obj-$(CONFIG_QUOTACTL)		+= quota.o
-+
-+obj-$(CONFIG_PROC_FS)		+= proc/
-+obj-y				+= partitions/
-+obj-$(CONFIG_SYSFS)		+= sysfs/
-+obj-$(CONFIG_CONFIGFS_FS)	+= configfs/
-+obj-y				+= devpts/
-+
-+obj-$(CONFIG_PROFILING)		+= dcookies.o
-+obj-$(CONFIG_DLM)		+= dlm/
-+ 
-+# Do not add any filesystems before this line
-+obj-$(CONFIG_REISERFS_FS)	+= reiserfs/
-+obj-$(CONFIG_EXT3_FS)		+= ext3/ # Before ext2 so root fs can be ext3
-+obj-$(CONFIG_EXT2_FS)		+= ext2/
-+# We place ext4 after ext2 so plain ext2 root fs's are mounted using ext2
-+# unless explicitly requested by rootfstype
-+obj-$(CONFIG_EXT4_FS)		+= ext4/
-+obj-$(CONFIG_JBD)		+= jbd/
-+obj-$(CONFIG_JBD2)		+= jbd2/
-+obj-$(CONFIG_CRAMFS)		+= cramfs/
-+obj-$(CONFIG_SQUASHFS)		+= squashfs/
-+obj-y				+= ramfs/
-+obj-$(CONFIG_HUGETLBFS)		+= hugetlbfs/
-+obj-$(CONFIG_CODA_FS)		+= coda/
-+obj-$(CONFIG_MINIX_FS)		+= minix/
-+obj-$(CONFIG_FAT_FS)		+= fat/
-+obj-$(CONFIG_BFS_FS)		+= bfs/
-+obj-$(CONFIG_ISO9660_FS)	+= isofs/
-+obj-$(CONFIG_HFSPLUS_FS)	+= hfsplus/ # Before hfs to find wrapped HFS+
-+obj-$(CONFIG_HFS_FS)		+= hfs/
-+obj-$(CONFIG_ECRYPT_FS)		+= ecryptfs/
-+obj-$(CONFIG_VXFS_FS)		+= freevxfs/
-+obj-$(CONFIG_NFS_FS)		+= nfs/
-+obj-$(CONFIG_EXPORTFS)		+= exportfs/
-+obj-$(CONFIG_NFSD)		+= nfsd/
-+obj-$(CONFIG_LOCKD)		+= lockd/
-+obj-$(CONFIG_NLS)		+= nls/
-+obj-$(CONFIG_SYSV_FS)		+= sysv/
-+obj-$(CONFIG_SMB_FS)		+= smbfs/
-+obj-$(CONFIG_CIFS)		+= cifs/
-+obj-$(CONFIG_NCP_FS)		+= ncpfs/
-+obj-$(CONFIG_HPFS_FS)		+= hpfs/
-+obj-$(CONFIG_NTFS_FS)		+= ntfs/
-+obj-$(CONFIG_UFS_FS)		+= ufs/
-+obj-$(CONFIG_EFS_FS)		+= efs/
-+obj-$(CONFIG_JFFS2_FS)		+= jffs2/
-+obj-$(CONFIG_UBIFS_FS)		+= ubifs/
-+obj-$(CONFIG_AFFS_FS)		+= affs/
-+obj-$(CONFIG_ROMFS_FS)		+= romfs/
-+obj-$(CONFIG_QNX4FS_FS)		+= qnx4/
-+obj-$(CONFIG_AUTOFS_FS)		+= autofs/
-+obj-$(CONFIG_AUTOFS4_FS)	+= autofs4/
-+obj-$(CONFIG_ADFS_FS)		+= adfs/
-+obj-$(CONFIG_FUSE_FS)		+= fuse/
-+obj-$(CONFIG_UDF_FS)		+= udf/
-+obj-$(CONFIG_SUN_OPENPROMFS)	+= openpromfs/
-+obj-$(CONFIG_OMFS_FS)		+= omfs/
-+obj-$(CONFIG_JFS_FS)		+= jfs/
-+obj-$(CONFIG_XFS_FS)		+= xfs/
-+obj-$(CONFIG_9P_FS)		+= 9p/
-+obj-$(CONFIG_AFS_FS)		+= afs/
-+obj-$(CONFIG_BEFS_FS)		+= befs/
-+obj-$(CONFIG_HOSTFS)		+= hostfs/
-+obj-$(CONFIG_HPPFS)		+= hppfs/
-+obj-$(CONFIG_DEBUG_FS)		+= debugfs/
-+obj-$(CONFIG_OCFS2_FS)		+= ocfs2/
-+obj-$(CONFIG_BTRFS_FS)		+= btrfs/
-+obj-$(CONFIG_GFS2_FS)           += gfs2/
-diff -Nur linux-2.6.30.orig/fs/yaffs2/devextras.h linux-2.6.30/fs/yaffs2/devextras.h
---- linux-2.6.30.orig/fs/yaffs2/devextras.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/devextras.h	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,196 @@
-+/*
-+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU Lesser General Public License version 2.1 as
-+ * published by the Free Software Foundation.
-+ *
-+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
-+ */
-+
-+/*
-+ * This file is just holds extra declarations of macros that would normally
-+ * be providesd in the Linux kernel. These macros have been written from
-+ * scratch but are functionally equivalent to the Linux ones.
-+ *
-+ */
-+
-+#ifndef __EXTRAS_H__
-+#define __EXTRAS_H__
-+
-+
-+#if !(defined __KERNEL__)
-+
-+/* Definition of types */
-+typedef unsigned char __u8;
-+typedef unsigned short __u16;
-+typedef unsigned __u32;
-+
-+#endif
-+
-+/*
-+ * This is a simple doubly linked list implementation that matches the
-+ * way the Linux kernel doubly linked list implementation works.
-+ */
-+
-+struct ylist_head {
-+	struct ylist_head *next; /* next in chain */
-+	struct ylist_head *prev; /* previous in chain */
-+};
-+
-+
-+/* Initialise a static list */
-+#define YLIST_HEAD(name) \
-+struct ylist_head name = { &(name), &(name)}
-+
-+
-+
-+/* Initialise a list head to an empty list */
-+#define YINIT_LIST_HEAD(p) \
-+do { \
-+	(p)->next = (p);\
-+	(p)->prev = (p); \
-+} while (0)
-+
-+
-+/* Add an element to a list */
-+static __inline__ void ylist_add(struct ylist_head *newEntry,
-+				struct ylist_head *list)
-+{
-+	struct ylist_head *listNext = list->next;
-+
-+	list->next = newEntry;
-+	newEntry->prev = list;
-+	newEntry->next = listNext;
-+	listNext->prev = newEntry;
-+
-+}
-+
-+static __inline__ void ylist_add_tail(struct ylist_head *newEntry,
-+				 struct ylist_head *list)
-+{
-+	struct ylist_head *listPrev = list->prev;
-+
-+	list->prev = newEntry;
-+	newEntry->next = list;
-+	newEntry->prev = listPrev;
-+	listPrev->next = newEntry;
-+
-+}
-+
-+
-+/* Take an element out of its current list, with or without
-+ * reinitialising the links.of the entry*/
-+static __inline__ void ylist_del(struct ylist_head *entry)
-+{
-+	struct ylist_head *listNext = entry->next;
-+	struct ylist_head *listPrev = entry->prev;
-+
-+	listNext->prev = listPrev;
-+	listPrev->next = listNext;
-+
-+}
-+
-+static __inline__ void ylist_del_init(struct ylist_head *entry)
-+{
-+	ylist_del(entry);
-+	entry->next = entry->prev = entry;
-+}
-+
-+
-+/* Test if the list is empty */
-+static __inline__ int ylist_empty(struct ylist_head *entry)
-+{
-+	return (entry->next == entry);
-+}
-+
-+
-+/* ylist_entry takes a pointer to a list entry and offsets it to that
-+ * we can find a pointer to the object it is embedded in.
-+ */
-+
-+
-+#define ylist_entry(entry, type, member) \
-+	((type *)((char *)(entry)-(unsigned long)(&((type *)NULL)->member)))
-+
-+
-+/* ylist_for_each and list_for_each_safe  iterate over lists.
-+ * ylist_for_each_safe uses temporary storage to make the list delete safe
-+ */
-+
-+#define ylist_for_each(itervar, list) \
-+	for (itervar = (list)->next; itervar != (list); itervar = itervar->next)
-+
-+#define ylist_for_each_safe(itervar, saveVar, list) \
-+	for (itervar = (list)->next, saveVar = (list)->next->next; \
-+		itervar != (list); itervar = saveVar, saveVar = saveVar->next)
-+
-+
-+#if !(defined __KERNEL__)
-+
-+
-+#ifndef WIN32
-+#include <sys/stat.h>
-+#endif
-+
-+
-+#ifdef CONFIG_YAFFS_PROVIDE_DEFS
-+/* File types */
-+
-+
-+#define DT_UNKNOWN	0
-+#define DT_FIFO		1
-+#define DT_CHR		2
-+#define DT_DIR		4
-+#define DT_BLK		6
-+#define DT_REG		8
-+#define DT_LNK		10
-+#define DT_SOCK		12
-+#define DT_WHT		14
-+
-+
-+#ifndef WIN32
-+#include <sys/stat.h>
-+#endif
-+
-+/*
-+ * Attribute flags.  These should be or-ed together to figure out what
-+ * has been changed!
-+ */
-+#define ATTR_MODE	1
-+#define ATTR_UID	2
-+#define ATTR_GID	4
-+#define ATTR_SIZE	8
-+#define ATTR_ATIME	16
-+#define ATTR_MTIME	32
-+#define ATTR_CTIME	64
-+
-+struct iattr {
-+	unsigned int ia_valid;
-+	unsigned ia_mode;
-+	unsigned ia_uid;
-+	unsigned ia_gid;
-+	unsigned ia_size;
-+	unsigned ia_atime;
-+	unsigned ia_mtime;
-+	unsigned ia_ctime;
-+	unsigned int ia_attr_flags;
-+};
-+
-+#endif
-+
-+#else
-+
-+#include <linux/types.h>
-+#include <linux/fs.h>
-+#include <linux/stat.h>
-+
-+#endif
-+
-+
-+#endif
-diff -Nur linux-2.6.30.orig/fs/yaffs2/Kconfig linux-2.6.30/fs/yaffs2/Kconfig
---- linux-2.6.30.orig/fs/yaffs2/Kconfig	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/Kconfig	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,156 @@
-+#
-+# YAFFS file system configurations
-+#
-+
-+config YAFFS_FS
-+	tristate "YAFFS2 file system support"
-+	default n
-+	depends on MTD_BLOCK
-+	select YAFFS_YAFFS1
-+	select YAFFS_YAFFS2
-+	help
-+	  YAFFS2, or Yet Another Flash Filing System, is a filing system
-+	  optimised for NAND Flash chips.
-+
-+	  To compile the YAFFS2 file system support as a module, choose M
-+	  here: the module will be called yaffs2.
-+
-+	  If unsure, say N.
-+
-+	  Further information on YAFFS2 is available at
-+	  <http://www.aleph1.co.uk/yaffs/>.
-+
-+config YAFFS_YAFFS1
-+	bool "512 byte / page devices"
-+	depends on YAFFS_FS
-+	default y
-+	help
-+	  Enable YAFFS1 support -- yaffs for 512 byte / page devices
-+
-+	  Not needed for 2K-page devices.
-+
-+	  If unsure, say Y.
-+
-+config YAFFS_9BYTE_TAGS
-+	bool "Use older-style on-NAND data format with pageStatus byte"
-+	depends on YAFFS_YAFFS1
-+	default n
-+	help
-+
-+	  Older-style on-NAND data format has a "pageStatus" byte to record
-+	  chunk/page state.  This byte is zero when the page is discarded.
-+	  Choose this option if you have existing on-NAND data using this
-+	  format that you need to continue to support.  New data written
-+	  also uses the older-style format.  Note: Use of this option
-+	  generally requires that MTD's oob layout be adjusted to use the
-+	  older-style format.  See notes on tags formats and MTD versions
-+	  in yaffs_mtdif1.c.
-+
-+	  If unsure, say N.
-+
-+config YAFFS_DOES_ECC
-+	bool "Lets Yaffs do its own ECC"
-+	depends on YAFFS_FS && YAFFS_YAFFS1 && !YAFFS_9BYTE_TAGS
-+	default n
-+	help
-+	  This enables Yaffs to use its own ECC functions instead of using
-+	  the ones from the generic MTD-NAND driver.
-+
-+	  If unsure, say N.
-+
-+config YAFFS_ECC_WRONG_ORDER
-+	bool "Use the same ecc byte order as Steven Hill's nand_ecc.c"
-+	depends on YAFFS_FS && YAFFS_DOES_ECC && !YAFFS_9BYTE_TAGS
-+	default n
-+	help
-+	  This makes yaffs_ecc.c use the same ecc byte order as Steven
-+	  Hill's nand_ecc.c. If not set, then you get the same ecc byte
-+	  order as SmartMedia.
-+
-+	  If unsure, say N.
-+
-+config YAFFS_YAFFS2
-+	bool "2048 byte (or larger) / page devices"
-+	depends on YAFFS_FS
-+	default y
-+	help
-+	  Enable YAFFS2 support -- yaffs for >= 2K bytes per page devices
-+
-+	  If unsure, say Y.
-+
-+config YAFFS_AUTO_YAFFS2
-+	bool "Autoselect yaffs2 format"
-+	depends on YAFFS_YAFFS2
-+	default y
-+	help
-+	  Without this, you need to explicitely use yaffs2 as the file
-+	  system type. With this, you can say "yaffs" and yaffs or yaffs2
-+	  will be used depending on the device page size (yaffs on
-+	  512-byte page devices, yaffs2 on 2K page devices).
-+
-+	  If unsure, say Y.
-+
-+config YAFFS_DISABLE_LAZY_LOAD
-+	bool "Disable lazy loading"
-+	depends on YAFFS_YAFFS2
-+	default n
-+	help
-+	  "Lazy loading" defers loading file details until they are
-+	  required. This saves mount time, but makes the first look-up
-+	  a bit longer.
-+
-+	  Lazy loading will only happen if enabled by this option being 'n'
-+	  and if the appropriate tags are available, else yaffs2 will
-+	  automatically fall back to immediate loading and do the right
-+	  thing.
-+
-+	  Lazy laoding will be required by checkpointing.
-+
-+	  Setting this to 'y' will disable lazy loading.
-+
-+	  If unsure, say N.
-+
-+
-+config YAFFS_DISABLE_WIDE_TNODES
-+	bool "Turn off wide tnodes"
-+	depends on YAFFS_FS
-+	default n
-+	help
-+	  Wide tnodes are only used for NAND arrays >=32MB for 512-byte
-+	  page devices and >=128MB for 2k page devices. They use slightly
-+	  more RAM but are faster since they eliminate chunk group
-+	  searching.
-+
-+	  Setting this to 'y' will force tnode width to 16 bits and save
-+	  memory but make large arrays slower.
-+
-+	  If unsure, say N.
-+
-+config YAFFS_ALWAYS_CHECK_CHUNK_ERASED
-+	bool "Force chunk erase check"
-+	depends on YAFFS_FS
-+	default n
-+	help
-+          Normally YAFFS only checks chunks before writing until an erased
-+	  chunk is found. This helps to detect any partially written
-+	  chunks that might have happened due to power loss.
-+
-+	  Enabling this forces on the test that chunks are erased in flash
-+	  before writing to them. This takes more time but is potentially
-+	  a bit more secure.
-+
-+	  Suggest setting Y during development and ironing out driver
-+	  issues etc. Suggest setting to N if you want faster writing.
-+
-+	  If unsure, say Y.
-+
-+config YAFFS_SHORT_NAMES_IN_RAM
-+	bool "Cache short names in RAM"
-+	depends on YAFFS_FS
-+	default y
-+	help
-+	  If this config is set, then short names are stored with the
-+	  yaffs_Object.  This costs an extra 16 bytes of RAM per object,
-+	  but makes look-ups faster.
-+
-+	  If unsure, say Y.
-diff -Nur linux-2.6.30.orig/fs/yaffs2/Makefile linux-2.6.30/fs/yaffs2/Makefile
---- linux-2.6.30.orig/fs/yaffs2/Makefile	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/Makefile	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,10 @@
-+#
-+# Makefile for the linux YAFFS filesystem routines.
-+#
-+
-+obj-$(CONFIG_YAFFS_FS) += yaffs.o
-+
-+yaffs-y := yaffs_ecc.o yaffs_fs.o yaffs_guts.o yaffs_checkptrw.o
-+yaffs-y += yaffs_packedtags1.o yaffs_packedtags2.o yaffs_nand.o yaffs_qsort.o
-+yaffs-y += yaffs_tagscompat.o yaffs_tagsvalidity.o
-+yaffs-y += yaffs_mtdif.o yaffs_mtdif1.o yaffs_mtdif2.o
-diff -Nur linux-2.6.30.orig/fs/yaffs2/moduleconfig.h linux-2.6.30/fs/yaffs2/moduleconfig.h
---- linux-2.6.30.orig/fs/yaffs2/moduleconfig.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/moduleconfig.h	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,65 @@
-+/*
-+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Martin Fouts <Martin.Fouts@palmsource.com>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU Lesser General Public License version 2.1 as
-+ * published by the Free Software Foundation.
-+ *
-+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
-+ */
-+
-+#ifndef __YAFFS_CONFIG_H__
-+#define __YAFFS_CONFIG_H__
-+
-+#ifdef YAFFS_OUT_OF_TREE
-+
-+/* DO NOT UNSET THESE THREE. YAFFS2 will not compile if you do. */
-+#define CONFIG_YAFFS_FS
-+#define CONFIG_YAFFS_YAFFS1
-+#define CONFIG_YAFFS_YAFFS2
-+
-+/* These options are independent of each other.  Select those that matter. */
-+
-+/* Default: Not selected */
-+/* Meaning: Yaffs does its own ECC, rather than using MTD ECC */
-+/* #define CONFIG_YAFFS_DOES_ECC */
-+
-+/* Default: Not selected */
-+/* Meaning: ECC byte order is 'wrong'.  Only meaningful if */
-+/*          CONFIG_YAFFS_DOES_ECC is set */
-+/* #define CONFIG_YAFFS_ECC_WRONG_ORDER */
-+
-+/* Default: Selected */
-+/* Meaning: Disables testing whether chunks are erased before writing to them*/
-+#define CONFIG_YAFFS_DISABLE_CHUNK_ERASED_CHECK
-+
-+/* Default: Selected */
-+/* Meaning: Cache short names, taking more RAM, but faster look-ups */
-+#define CONFIG_YAFFS_SHORT_NAMES_IN_RAM
-+
-+/* Default: 10 */
-+/* Meaning: set the count of blocks to reserve for checkpointing */
-+#define CONFIG_YAFFS_CHECKPOINT_RESERVED_BLOCKS 10
-+
-+/*
-+Older-style on-NAND data format has a "pageStatus" byte to record
-+chunk/page state.  This byte is zeroed when the page is discarded.
-+Choose this option if you have existing on-NAND data in this format
-+that you need to continue to support.  New data written also uses the
-+older-style format.
-+Note: Use of this option generally requires that MTD's oob layout be
-+adjusted to use the older-style format.  See notes on tags formats and
-+MTD versions in yaffs_mtdif1.c.
-+*/
-+/* Default: Not selected */
-+/* Meaning: Use older-style on-NAND data format with pageStatus byte */
-+/* #define CONFIG_YAFFS_9BYTE_TAGS */
-+
-+#endif /* YAFFS_OUT_OF_TREE */
-+
-+#endif /* __YAFFS_CONFIG_H__ */
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_checkptrw.c linux-2.6.30/fs/yaffs2/yaffs_checkptrw.c
---- linux-2.6.30.orig/fs/yaffs2/yaffs_checkptrw.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_checkptrw.c	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,394 @@
-+/*
-+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+const char *yaffs_checkptrw_c_version =
-+	"$Id: yaffs_checkptrw.c,v 1.18 2009-03-06 17:20:49 wookey Exp $";
-+
-+
-+#include "yaffs_checkptrw.h"
-+#include "yaffs_getblockinfo.h"
-+
-+static int yaffs_CheckpointSpaceOk(yaffs_Device *dev)
-+{
-+	int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks;
-+
-+	T(YAFFS_TRACE_CHECKPOINT,
-+		(TSTR("checkpt blocks available = %d" TENDSTR),
-+		blocksAvailable));
-+
-+	return (blocksAvailable <= 0) ? 0 : 1;
-+}
-+
-+
-+static int yaffs_CheckpointErase(yaffs_Device *dev)
-+{
-+	int i;
-+
-+	if (!dev->eraseBlockInNAND)
-+		return 0;
-+	T(YAFFS_TRACE_CHECKPOINT, (TSTR("checking blocks %d to %d"TENDSTR),
-+		dev->internalStartBlock, dev->internalEndBlock));
-+
-+	for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) {
-+		yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i);
-+		if (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT) {
-+			T(YAFFS_TRACE_CHECKPOINT, (TSTR("erasing checkpt block %d"TENDSTR), i));
-+			if (dev->eraseBlockInNAND(dev, i - dev->blockOffset /* realign */)) {
-+				bi->blockState = YAFFS_BLOCK_STATE_EMPTY;
-+				dev->nErasedBlocks++;
-+				dev->nFreeChunks += dev->nChunksPerBlock;
-+			} else {
-+				dev->markNANDBlockBad(dev, i);
-+				bi->blockState = YAFFS_BLOCK_STATE_DEAD;
-+			}
-+		}
-+	}
-+
-+	dev->blocksInCheckpoint = 0;
-+
-+	return 1;
-+}
-+
-+
-+static void yaffs_CheckpointFindNextErasedBlock(yaffs_Device *dev)
-+{
-+	int  i;
-+	int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks;
-+	T(YAFFS_TRACE_CHECKPOINT,
-+		(TSTR("allocating checkpt block: erased %d reserved %d avail %d next %d "TENDSTR),
-+		dev->nErasedBlocks, dev->nReservedBlocks, blocksAvailable, dev->checkpointNextBlock));
-+
-+	if (dev->checkpointNextBlock >= 0 &&
-+			dev->checkpointNextBlock <= dev->internalEndBlock &&
-+			blocksAvailable > 0) {
-+
-+		for (i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++) {
-+			yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i);
-+			if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY) {
-+				dev->checkpointNextBlock = i + 1;
-+				dev->checkpointCurrentBlock = i;
-+				T(YAFFS_TRACE_CHECKPOINT, (TSTR("allocating checkpt block %d"TENDSTR), i));
-+				return;
-+			}
-+		}
-+	}
-+	T(YAFFS_TRACE_CHECKPOINT, (TSTR("out of checkpt blocks"TENDSTR)));
-+
-+	dev->checkpointNextBlock = -1;
-+	dev->checkpointCurrentBlock = -1;
-+}
-+
-+static void yaffs_CheckpointFindNextCheckpointBlock(yaffs_Device *dev)
-+{
-+	int  i;
-+	yaffs_ExtendedTags tags;
-+
-+	T(YAFFS_TRACE_CHECKPOINT, (TSTR("find next checkpt block: start:  blocks %d next %d" TENDSTR),
-+		dev->blocksInCheckpoint, dev->checkpointNextBlock));
-+
-+	if (dev->blocksInCheckpoint < dev->checkpointMaxBlocks)
-+		for (i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++) {
-+			int chunk = i * dev->nChunksPerBlock;
-+			int realignedChunk = chunk - dev->chunkOffset;
-+
-+			dev->readChunkWithTagsFromNAND(dev, realignedChunk,
-+					NULL, &tags);
-+			T(YAFFS_TRACE_CHECKPOINT, (TSTR("find next checkpt block: search: block %d oid %d seq %d eccr %d" TENDSTR),
-+				i, tags.objectId, tags.sequenceNumber, tags.eccResult));
-+
-+			if (tags.sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA) {
-+				/* Right kind of block */
-+				dev->checkpointNextBlock = tags.objectId;
-+				dev->checkpointCurrentBlock = i;
-+				dev->checkpointBlockList[dev->blocksInCheckpoint] = i;
-+				dev->blocksInCheckpoint++;
-+				T(YAFFS_TRACE_CHECKPOINT, (TSTR("found checkpt block %d"TENDSTR), i));
-+				return;
-+			}
-+		}
-+
-+	T(YAFFS_TRACE_CHECKPOINT, (TSTR("found no more checkpt blocks"TENDSTR)));
-+
-+	dev->checkpointNextBlock = -1;
-+	dev->checkpointCurrentBlock = -1;
-+}
-+
-+
-+int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting)
-+{
-+
-+	/* Got the functions we need? */
-+	if (!dev->writeChunkWithTagsToNAND ||
-+			!dev->readChunkWithTagsFromNAND ||
-+			!dev->eraseBlockInNAND ||
-+			!dev->markNANDBlockBad)
-+		return 0;
-+
-+	if (forWriting && !yaffs_CheckpointSpaceOk(dev))
-+		return 0;
-+
-+	if (!dev->checkpointBuffer)
-+		dev->checkpointBuffer = YMALLOC_DMA(dev->totalBytesPerChunk);
-+	if (!dev->checkpointBuffer)
-+		return 0;
-+
-+
-+	dev->checkpointPageSequence = 0;
-+
-+	dev->checkpointOpenForWrite = forWriting;
-+
-+	dev->checkpointByteCount = 0;
-+	dev->checkpointSum = 0;
-+	dev->checkpointXor = 0;
-+	dev->checkpointCurrentBlock = -1;
-+	dev->checkpointCurrentChunk = -1;
-+	dev->checkpointNextBlock = dev->internalStartBlock;
-+
-+	/* Erase all the blocks in the checkpoint area */
-+	if (forWriting) {
-+		memset(dev->checkpointBuffer, 0, dev->nDataBytesPerChunk);
-+		dev->checkpointByteOffset = 0;
-+		return yaffs_CheckpointErase(dev);
-+	} else {
-+		int i;
-+		/* Set to a value that will kick off a read */
-+		dev->checkpointByteOffset = dev->nDataBytesPerChunk;
-+		/* A checkpoint block list of 1 checkpoint block per 16 block is (hopefully)
-+		 * going to be way more than we need */
-+		dev->blocksInCheckpoint = 0;
-+		dev->checkpointMaxBlocks = (dev->internalEndBlock - dev->internalStartBlock)/16 + 2;
-+		dev->checkpointBlockList = YMALLOC(sizeof(int) * dev->checkpointMaxBlocks);
-+		for (i = 0; i < dev->checkpointMaxBlocks; i++)
-+			dev->checkpointBlockList[i] = -1;
-+	}
-+
-+	return 1;
-+}
-+
-+int yaffs_GetCheckpointSum(yaffs_Device *dev, __u32 *sum)
-+{
-+	__u32 compositeSum;
-+	compositeSum =  (dev->checkpointSum << 8) | (dev->checkpointXor & 0xFF);
-+	*sum = compositeSum;
-+	return 1;
-+}
-+
-+static int yaffs_CheckpointFlushBuffer(yaffs_Device *dev)
-+{
-+	int chunk;
-+	int realignedChunk;
-+
-+	yaffs_ExtendedTags tags;
-+
-+	if (dev->checkpointCurrentBlock < 0) {
-+		yaffs_CheckpointFindNextErasedBlock(dev);
-+		dev->checkpointCurrentChunk = 0;
-+	}
-+
-+	if (dev->checkpointCurrentBlock < 0)
-+		return 0;
-+
-+	tags.chunkDeleted = 0;
-+	tags.objectId = dev->checkpointNextBlock; /* Hint to next place to look */
-+	tags.chunkId = dev->checkpointPageSequence + 1;
-+	tags.sequenceNumber =  YAFFS_SEQUENCE_CHECKPOINT_DATA;
-+	tags.byteCount = dev->nDataBytesPerChunk;
-+	if (dev->checkpointCurrentChunk == 0) {
-+		/* First chunk we write for the block? Set block state to
-+		   checkpoint */
-+		yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, dev->checkpointCurrentBlock);
-+		bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT;
-+		dev->blocksInCheckpoint++;
-+	}
-+
-+	chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + dev->checkpointCurrentChunk;
-+
-+
-+	T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint wite buffer nand %d(%d:%d) objid %d chId %d" TENDSTR),
-+		chunk, dev->checkpointCurrentBlock, dev->checkpointCurrentChunk, tags.objectId, tags.chunkId));
-+
-+	realignedChunk = chunk - dev->chunkOffset;
-+
-+	dev->writeChunkWithTagsToNAND(dev, realignedChunk,
-+			dev->checkpointBuffer, &tags);
-+	dev->checkpointByteOffset = 0;
-+	dev->checkpointPageSequence++;
-+	dev->checkpointCurrentChunk++;
-+	if (dev->checkpointCurrentChunk >= dev->nChunksPerBlock) {
-+		dev->checkpointCurrentChunk = 0;
-+		dev->checkpointCurrentBlock = -1;
-+	}
-+	memset(dev->checkpointBuffer, 0, dev->nDataBytesPerChunk);
-+
-+	return 1;
-+}
-+
-+
-+int yaffs_CheckpointWrite(yaffs_Device *dev, const void *data, int nBytes)
-+{
-+	int i = 0;
-+	int ok = 1;
-+
-+
-+	__u8 * dataBytes = (__u8 *)data;
-+
-+
-+
-+	if (!dev->checkpointBuffer)
-+		return 0;
-+
-+	if (!dev->checkpointOpenForWrite)
-+		return -1;
-+
-+	while (i < nBytes && ok) {
-+		dev->checkpointBuffer[dev->checkpointByteOffset] = *dataBytes;
-+		dev->checkpointSum += *dataBytes;
-+		dev->checkpointXor ^= *dataBytes;
-+
-+		dev->checkpointByteOffset++;
-+		i++;
-+		dataBytes++;
-+		dev->checkpointByteCount++;
-+
-+
-+		if (dev->checkpointByteOffset < 0 ||
-+		   dev->checkpointByteOffset >= dev->nDataBytesPerChunk)
-+			ok = yaffs_CheckpointFlushBuffer(dev);
-+	}
-+
-+	return i;
-+}
-+
-+int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes)
-+{
-+	int i = 0;
-+	int ok = 1;
-+	yaffs_ExtendedTags tags;
-+
-+
-+	int chunk;
-+	int realignedChunk;
-+
-+	__u8 *dataBytes = (__u8 *)data;
-+
-+	if (!dev->checkpointBuffer)
-+		return 0;
-+
-+	if (dev->checkpointOpenForWrite)
-+		return -1;
-+
-+	while (i < nBytes && ok) {
-+
-+
-+		if (dev->checkpointByteOffset < 0 ||
-+			dev->checkpointByteOffset >= dev->nDataBytesPerChunk) {
-+
-+			if (dev->checkpointCurrentBlock < 0) {
-+				yaffs_CheckpointFindNextCheckpointBlock(dev);
-+				dev->checkpointCurrentChunk = 0;
-+			}
-+
-+			if (dev->checkpointCurrentBlock < 0)
-+				ok = 0;
-+			else {
-+				chunk = dev->checkpointCurrentBlock *
-+					dev->nChunksPerBlock +
-+					dev->checkpointCurrentChunk;
-+
-+				realignedChunk = chunk - dev->chunkOffset;
-+
-+				/* read in the next chunk */
-+				/* printf("read checkpoint page %d\n",dev->checkpointPage); */
-+				dev->readChunkWithTagsFromNAND(dev,
-+						realignedChunk,
-+						dev->checkpointBuffer,
-+						&tags);
-+
-+				if (tags.chunkId != (dev->checkpointPageSequence + 1) ||
-+					tags.eccResult > YAFFS_ECC_RESULT_FIXED ||
-+					tags.sequenceNumber != YAFFS_SEQUENCE_CHECKPOINT_DATA)
-+					ok = 0;
-+
-+				dev->checkpointByteOffset = 0;
-+				dev->checkpointPageSequence++;
-+				dev->checkpointCurrentChunk++;
-+
-+				if (dev->checkpointCurrentChunk >= dev->nChunksPerBlock)
-+					dev->checkpointCurrentBlock = -1;
-+			}
-+		}
-+
-+		if (ok) {
-+			*dataBytes = dev->checkpointBuffer[dev->checkpointByteOffset];
-+			dev->checkpointSum += *dataBytes;
-+			dev->checkpointXor ^= *dataBytes;
-+			dev->checkpointByteOffset++;
-+			i++;
-+			dataBytes++;
-+			dev->checkpointByteCount++;
-+		}
-+	}
-+
-+	return 	i;
-+}
-+
-+int yaffs_CheckpointClose(yaffs_Device *dev)
-+{
-+
-+	if (dev->checkpointOpenForWrite) {
-+		if (dev->checkpointByteOffset != 0)
-+			yaffs_CheckpointFlushBuffer(dev);
-+	} else {
-+		int i;
-+		for (i = 0; i < dev->blocksInCheckpoint && dev->checkpointBlockList[i] >= 0; i++) {
-+			yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, dev->checkpointBlockList[i]);
-+			if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY)
-+				bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT;
-+			else {
-+				/* Todo this looks odd... */
-+			}
-+		}
-+		YFREE(dev->checkpointBlockList);
-+		dev->checkpointBlockList = NULL;
-+	}
-+
-+	dev->nFreeChunks -= dev->blocksInCheckpoint * dev->nChunksPerBlock;
-+	dev->nErasedBlocks -= dev->blocksInCheckpoint;
-+
-+
-+	T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint byte count %d" TENDSTR),
-+			dev->checkpointByteCount));
-+
-+	if (dev->checkpointBuffer) {
-+		/* free the buffer */
-+		YFREE(dev->checkpointBuffer);
-+		dev->checkpointBuffer = NULL;
-+		return 1;
-+	} else
-+		return 0;
-+}
-+
-+int yaffs_CheckpointInvalidateStream(yaffs_Device *dev)
-+{
-+	/* Erase the first checksum block */
-+
-+	T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint invalidate"TENDSTR)));
-+
-+	if (!yaffs_CheckpointSpaceOk(dev))
-+		return 0;
-+
-+	return yaffs_CheckpointErase(dev);
-+}
-+
-+
-+
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_checkptrw.h linux-2.6.30/fs/yaffs2/yaffs_checkptrw.h
---- linux-2.6.30.orig/fs/yaffs2/yaffs_checkptrw.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_checkptrw.h	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,35 @@
-+/*
-+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU Lesser General Public License version 2.1 as
-+ * published by the Free Software Foundation.
-+ *
-+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
-+ */
-+
-+#ifndef __YAFFS_CHECKPTRW_H__
-+#define __YAFFS_CHECKPTRW_H__
-+
-+#include "yaffs_guts.h"
-+
-+int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting);
-+
-+int yaffs_CheckpointWrite(yaffs_Device *dev, const void *data, int nBytes);
-+
-+int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes);
-+
-+int yaffs_GetCheckpointSum(yaffs_Device *dev, __u32 *sum);
-+
-+int yaffs_CheckpointClose(yaffs_Device *dev);
-+
-+int yaffs_CheckpointInvalidateStream(yaffs_Device *dev);
-+
-+
-+#endif
-+
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_ecc.c linux-2.6.30/fs/yaffs2/yaffs_ecc.c
---- linux-2.6.30.orig/fs/yaffs2/yaffs_ecc.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_ecc.c	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,326 @@
-+/*
-+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+/*
-+ * This code implements the ECC algorithm used in SmartMedia.
-+ *
-+ * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes.
-+ * The two unused bit are set to 1.
-+ * The ECC can correct single bit errors in a 256-byte page of data. Thus, two such ECC
-+ * blocks are used on a 512-byte NAND page.
-+ *
-+ */
-+
-+/* Table generated by gen-ecc.c
-+ * Using a table means we do not have to calculate p1..p4 and p1'..p4'
-+ * for each byte of data. These are instead provided in a table in bits7..2.
-+ * Bit 0 of each entry indicates whether the entry has an odd or even parity, and therefore
-+ * this bytes influence on the line parity.
-+ */
-+
-+const char *yaffs_ecc_c_version =
-+	"$Id: yaffs_ecc.c,v 1.11 2009-03-06 17:20:50 wookey Exp $";
-+
-+#include "yportenv.h"
-+
-+#include "yaffs_ecc.h"
-+
-+static const unsigned char column_parity_table[] = {
-+	0x00, 0x55, 0x59, 0x0c, 0x65, 0x30, 0x3c, 0x69,
-+	0x69, 0x3c, 0x30, 0x65, 0x0c, 0x59, 0x55, 0x00,
-+	0x95, 0xc0, 0xcc, 0x99, 0xf0, 0xa5, 0xa9, 0xfc,
-+	0xfc, 0xa9, 0xa5, 0xf0, 0x99, 0xcc, 0xc0, 0x95,
-+	0x99, 0xcc, 0xc0, 0x95, 0xfc, 0xa9, 0xa5, 0xf0,
-+	0xf0, 0xa5, 0xa9, 0xfc, 0x95, 0xc0, 0xcc, 0x99,
-+	0x0c, 0x59, 0x55, 0x00, 0x69, 0x3c, 0x30, 0x65,
-+	0x65, 0x30, 0x3c, 0x69, 0x00, 0x55, 0x59, 0x0c,
-+	0xa5, 0xf0, 0xfc, 0xa9, 0xc0, 0x95, 0x99, 0xcc,
-+	0xcc, 0x99, 0x95, 0xc0, 0xa9, 0xfc, 0xf0, 0xa5,
-+	0x30, 0x65, 0x69, 0x3c, 0x55, 0x00, 0x0c, 0x59,
-+	0x59, 0x0c, 0x00, 0x55, 0x3c, 0x69, 0x65, 0x30,
-+	0x3c, 0x69, 0x65, 0x30, 0x59, 0x0c, 0x00, 0x55,
-+	0x55, 0x00, 0x0c, 0x59, 0x30, 0x65, 0x69, 0x3c,
-+	0xa9, 0xfc, 0xf0, 0xa5, 0xcc, 0x99, 0x95, 0xc0,
-+	0xc0, 0x95, 0x99, 0xcc, 0xa5, 0xf0, 0xfc, 0xa9,
-+	0xa9, 0xfc, 0xf0, 0xa5, 0xcc, 0x99, 0x95, 0xc0,
-+	0xc0, 0x95, 0x99, 0xcc, 0xa5, 0xf0, 0xfc, 0xa9,
-+	0x3c, 0x69, 0x65, 0x30, 0x59, 0x0c, 0x00, 0x55,
-+	0x55, 0x00, 0x0c, 0x59, 0x30, 0x65, 0x69, 0x3c,
-+	0x30, 0x65, 0x69, 0x3c, 0x55, 0x00, 0x0c, 0x59,
-+	0x59, 0x0c, 0x00, 0x55, 0x3c, 0x69, 0x65, 0x30,
-+	0xa5, 0xf0, 0xfc, 0xa9, 0xc0, 0x95, 0x99, 0xcc,
-+	0xcc, 0x99, 0x95, 0xc0, 0xa9, 0xfc, 0xf0, 0xa5,
-+	0x0c, 0x59, 0x55, 0x00, 0x69, 0x3c, 0x30, 0x65,
-+	0x65, 0x30, 0x3c, 0x69, 0x00, 0x55, 0x59, 0x0c,
-+	0x99, 0xcc, 0xc0, 0x95, 0xfc, 0xa9, 0xa5, 0xf0,
-+	0xf0, 0xa5, 0xa9, 0xfc, 0x95, 0xc0, 0xcc, 0x99,
-+	0x95, 0xc0, 0xcc, 0x99, 0xf0, 0xa5, 0xa9, 0xfc,
-+	0xfc, 0xa9, 0xa5, 0xf0, 0x99, 0xcc, 0xc0, 0x95,
-+	0x00, 0x55, 0x59, 0x0c, 0x65, 0x30, 0x3c, 0x69,
-+	0x69, 0x3c, 0x30, 0x65, 0x0c, 0x59, 0x55, 0x00,
-+};
-+
-+/* Count the bits in an unsigned char or a U32 */
-+
-+static int yaffs_CountBits(unsigned char x)
-+{
-+	int r = 0;
-+	while (x) {
-+		if (x & 1)
-+			r++;
-+		x >>= 1;
-+	}
-+	return r;
-+}
-+
-+static int yaffs_CountBits32(unsigned x)
-+{
-+	int r = 0;
-+	while (x) {
-+		if (x & 1)
-+			r++;
-+		x >>= 1;
-+	}
-+	return r;
-+}
-+
-+/* Calculate the ECC for a 256-byte block of data */
-+void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc)
-+{
-+	unsigned int i;
-+
-+	unsigned char col_parity = 0;
-+	unsigned char line_parity = 0;
-+	unsigned char line_parity_prime = 0;
-+	unsigned char t;
-+	unsigned char b;
-+
-+	for (i = 0; i < 256; i++) {
-+		b = column_parity_table[*data++];
-+		col_parity ^= b;
-+
-+		if (b & 0x01) {		/* odd number of bits in the byte */
-+			line_parity ^= i;
-+			line_parity_prime ^= ~i;
-+		}
-+	}
-+
-+	ecc[2] = (~col_parity) | 0x03;
-+
-+	t = 0;
-+	if (line_parity & 0x80)
-+		t |= 0x80;
-+	if (line_parity_prime & 0x80)
-+		t |= 0x40;
-+	if (line_parity & 0x40)
-+		t |= 0x20;
-+	if (line_parity_prime & 0x40)
-+		t |= 0x10;
-+	if (line_parity & 0x20)
-+		t |= 0x08;
-+	if (line_parity_prime & 0x20)
-+		t |= 0x04;
-+	if (line_parity & 0x10)
-+		t |= 0x02;
-+	if (line_parity_prime & 0x10)
-+		t |= 0x01;
-+	ecc[1] = ~t;
-+
-+	t = 0;
-+	if (line_parity & 0x08)
-+		t |= 0x80;
-+	if (line_parity_prime & 0x08)
-+		t |= 0x40;
-+	if (line_parity & 0x04)
-+		t |= 0x20;
-+	if (line_parity_prime & 0x04)
-+		t |= 0x10;
-+	if (line_parity & 0x02)
-+		t |= 0x08;
-+	if (line_parity_prime & 0x02)
-+		t |= 0x04;
-+	if (line_parity & 0x01)
-+		t |= 0x02;
-+	if (line_parity_prime & 0x01)
-+		t |= 0x01;
-+	ecc[0] = ~t;
-+
-+#ifdef CONFIG_YAFFS_ECC_WRONG_ORDER
-+	/* Swap the bytes into the wrong order */
-+	t = ecc[0];
-+	ecc[0] = ecc[1];
-+	ecc[1] = t;
-+#endif
-+}
-+
-+
-+/* Correct the ECC on a 256 byte block of data */
-+
-+int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc,
-+		     const unsigned char *test_ecc)
-+{
-+	unsigned char d0, d1, d2;	/* deltas */
-+
-+	d0 = read_ecc[0] ^ test_ecc[0];
-+	d1 = read_ecc[1] ^ test_ecc[1];
-+	d2 = read_ecc[2] ^ test_ecc[2];
-+
-+	if ((d0 | d1 | d2) == 0)
-+		return 0; /* no error */
-+
-+	if (((d0 ^ (d0 >> 1)) & 0x55) == 0x55 &&
-+	    ((d1 ^ (d1 >> 1)) & 0x55) == 0x55 &&
-+	    ((d2 ^ (d2 >> 1)) & 0x54) == 0x54) {
-+		/* Single bit (recoverable) error in data */
-+
-+		unsigned byte;
-+		unsigned bit;
-+
-+#ifdef CONFIG_YAFFS_ECC_WRONG_ORDER
-+		/* swap the bytes to correct for the wrong order */
-+		unsigned char t;
-+
-+		t = d0;
-+		d0 = d1;
-+		d1 = t;
-+#endif
-+
-+		bit = byte = 0;
-+
-+		if (d1 & 0x80)
-+			byte |= 0x80;
-+		if (d1 & 0x20)
-+			byte |= 0x40;
-+		if (d1 & 0x08)
-+			byte |= 0x20;
-+		if (d1 & 0x02)
-+			byte |= 0x10;
-+		if (d0 & 0x80)
-+			byte |= 0x08;
-+		if (d0 & 0x20)
-+			byte |= 0x04;
-+		if (d0 & 0x08)
-+			byte |= 0x02;
-+		if (d0 & 0x02)
-+			byte |= 0x01;
-+
-+		if (d2 & 0x80)
-+			bit |= 0x04;
-+		if (d2 & 0x20)
-+			bit |= 0x02;
-+		if (d2 & 0x08)
-+			bit |= 0x01;
-+
-+		data[byte] ^= (1 << bit);
-+
-+		return 1; /* Corrected the error */
-+	}
-+
-+	if ((yaffs_CountBits(d0) +
-+	     yaffs_CountBits(d1) +
-+	     yaffs_CountBits(d2)) ==  1) {
-+		/* Reccoverable error in ecc */
-+
-+		read_ecc[0] = test_ecc[0];
-+		read_ecc[1] = test_ecc[1];
-+		read_ecc[2] = test_ecc[2];
-+
-+		return 1; /* Corrected the error */
-+	}
-+
-+	/* Unrecoverable error */
-+
-+	return -1;
-+
-+}
-+
-+
-+/*
-+ * ECCxxxOther does ECC calcs on arbitrary n bytes of data
-+ */
-+void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes,
-+				yaffs_ECCOther *eccOther)
-+{
-+	unsigned int i;
-+
-+	unsigned char col_parity = 0;
-+	unsigned line_parity = 0;
-+	unsigned line_parity_prime = 0;
-+	unsigned char b;
-+
-+	for (i = 0; i < nBytes; i++) {
-+		b = column_parity_table[*data++];
-+		col_parity ^= b;
-+
-+		if (b & 0x01)	 {
-+			/* odd number of bits in the byte */
-+			line_parity ^= i;
-+			line_parity_prime ^= ~i;
-+		}
-+
-+	}
-+
-+	eccOther->colParity = (col_parity >> 2) & 0x3f;
-+	eccOther->lineParity = line_parity;
-+	eccOther->lineParityPrime = line_parity_prime;
-+}
-+
-+int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes,
-+			yaffs_ECCOther *read_ecc,
-+			const yaffs_ECCOther *test_ecc)
-+{
-+	unsigned char cDelta;	/* column parity delta */
-+	unsigned lDelta;	/* line parity delta */
-+	unsigned lDeltaPrime;	/* line parity delta */
-+	unsigned bit;
-+
-+	cDelta = read_ecc->colParity ^ test_ecc->colParity;
-+	lDelta = read_ecc->lineParity ^ test_ecc->lineParity;
-+	lDeltaPrime = read_ecc->lineParityPrime ^ test_ecc->lineParityPrime;
-+
-+	if ((cDelta | lDelta | lDeltaPrime) == 0)
-+		return 0; /* no error */
-+
-+	if (lDelta == ~lDeltaPrime &&
-+	    (((cDelta ^ (cDelta >> 1)) & 0x15) == 0x15)) {
-+		/* Single bit (recoverable) error in data */
-+
-+		bit = 0;
-+
-+		if (cDelta & 0x20)
-+			bit |= 0x04;
-+		if (cDelta & 0x08)
-+			bit |= 0x02;
-+		if (cDelta & 0x02)
-+			bit |= 0x01;
-+
-+		if (lDelta >= nBytes)
-+			return -1;
-+
-+		data[lDelta] ^= (1 << bit);
-+
-+		return 1; /* corrected */
-+	}
-+
-+	if ((yaffs_CountBits32(lDelta) + yaffs_CountBits32(lDeltaPrime) +
-+			yaffs_CountBits(cDelta)) == 1) {
-+		/* Reccoverable error in ecc */
-+
-+		*read_ecc = *test_ecc;
-+		return 1; /* corrected */
-+	}
-+
-+	/* Unrecoverable error */
-+
-+	return -1;
-+}
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_ecc.h linux-2.6.30/fs/yaffs2/yaffs_ecc.h
---- linux-2.6.30.orig/fs/yaffs2/yaffs_ecc.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_ecc.h	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,44 @@
-+/*
-+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU Lesser General Public License version 2.1 as
-+ * published by the Free Software Foundation.
-+ *
-+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
-+ */
-+
-+/*
-+ * This code implements the ECC algorithm used in SmartMedia.
-+ *
-+ * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes.
-+ * The two unused bit are set to 1.
-+ * The ECC can correct single bit errors in a 256-byte page of data. Thus, two such ECC
-+ * blocks are used on a 512-byte NAND page.
-+ *
-+ */
-+
-+#ifndef __YAFFS_ECC_H__
-+#define __YAFFS_ECC_H__
-+
-+typedef struct {
-+	unsigned char colParity;
-+	unsigned lineParity;
-+	unsigned lineParityPrime;
-+} yaffs_ECCOther;
-+
-+void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc);
-+int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc,
-+		const unsigned char *test_ecc);
-+
-+void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes,
-+			yaffs_ECCOther *ecc);
-+int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes,
-+			yaffs_ECCOther *read_ecc,
-+			const yaffs_ECCOther *test_ecc);
-+#endif
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_fs.c linux-2.6.30/fs/yaffs2/yaffs_fs.c
---- linux-2.6.30.orig/fs/yaffs2/yaffs_fs.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_fs.c	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,2529 @@
-+/*
-+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2009 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ * Acknowledgements:
-+ * Luc van OostenRyck for numerous patches.
-+ * Nick Bane for numerous patches.
-+ * Nick Bane for 2.5/2.6 integration.
-+ * Andras Toth for mknod rdev issue.
-+ * Michael Fischer for finding the problem with inode inconsistency.
-+ * Some code bodily lifted from JFFS
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+/*
-+ *
-+ * This is the file system front-end to YAFFS that hooks it up to
-+ * the VFS.
-+ *
-+ * Special notes:
-+ * >> 2.4: sb->u.generic_sbp points to the yaffs_Device associated with
-+ *         this superblock
-+ * >> 2.6: sb->s_fs_info  points to the yaffs_Device associated with this
-+ *         superblock
-+ * >> inode->u.generic_ip points to the associated yaffs_Object.
-+ */
-+
-+const char *yaffs_fs_c_version =
-+    "$Id: yaffs_fs.c,v 1.79 2009-03-17 01:12:00 wookey Exp $";
-+extern const char *yaffs_guts_c_version;
-+
-+#include <linux/version.h>
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
-+#include <linux/config.h>
-+#endif
-+#include <linux/kernel.h>
-+#include <linux/module.h>
-+#include <linux/slab.h>
-+#include <linux/init.h>
-+#include <linux/fs.h>
-+#include <linux/proc_fs.h>
-+#include <linux/smp_lock.h>
-+#include <linux/pagemap.h>
-+#include <linux/mtd/mtd.h>
-+#include <linux/interrupt.h>
-+#include <linux/string.h>
-+#include <linux/ctype.h>
-+
-+#include "asm/div64.h"
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
-+
-+#include <linux/statfs.h>	/* Added NCB 15-8-2003 */
-+#include <linux/statfs.h>
-+#define UnlockPage(p) unlock_page(p)
-+#define Page_Uptodate(page)	test_bit(PG_uptodate, &(page)->flags)
-+
-+/* FIXME: use sb->s_id instead ? */
-+#define yaffs_devname(sb, buf)	bdevname(sb->s_bdev, buf)
-+
-+#else
-+
-+#include <linux/locks.h>
-+#define	BDEVNAME_SIZE		0
-+#define	yaffs_devname(sb, buf)	kdevname(sb->s_dev)
-+
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0))
-+/* added NCB 26/5/2006 for 2.4.25-vrs2-tcl1 kernel */
-+#define __user
-+#endif
-+
-+#endif
-+
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26))
-+#define YPROC_ROOT  (&proc_root)
-+#else
-+#define YPROC_ROOT  NULL
-+#endif
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
-+#define WRITE_SIZE_STR "writesize"
-+#define WRITE_SIZE(mtd) ((mtd)->writesize)
-+#else
-+#define WRITE_SIZE_STR "oobblock"
-+#define WRITE_SIZE(mtd) ((mtd)->oobblock)
-+#endif
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 27))
-+#define YAFFS_USE_WRITE_BEGIN_END 1
-+#else
-+#define YAFFS_USE_WRITE_BEGIN_END 0
-+#endif
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28))
-+static uint32_t YCALCBLOCKS(uint64_t partition_size, uint32_t block_size)
-+{
-+	uint64_t result = partition_size;
-+	do_div(result, block_size);
-+	return (uint32_t)result;
-+}
-+#else
-+#define YCALCBLOCKS(s, b) ((s)/(b))
-+#endif
-+
-+#include <linux/uaccess.h>
-+
-+#include "yportenv.h"
-+#include "yaffs_guts.h"
-+
-+#include <linux/mtd/mtd.h>
-+#include "yaffs_mtdif.h"
-+#include "yaffs_mtdif1.h"
-+#include "yaffs_mtdif2.h"
-+
-+unsigned int yaffs_traceMask = YAFFS_TRACE_BAD_BLOCKS;
-+unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS;
-+unsigned int yaffs_auto_checkpoint = 1;
-+
-+/* Module Parameters */
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
-+module_param(yaffs_traceMask, uint, 0644);
-+module_param(yaffs_wr_attempts, uint, 0644);
-+module_param(yaffs_auto_checkpoint, uint, 0644);
-+#else
-+MODULE_PARM(yaffs_traceMask, "i");
-+MODULE_PARM(yaffs_wr_attempts, "i");
-+MODULE_PARM(yaffs_auto_checkpoint, "i");
-+#endif
-+
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25))
-+/* use iget and read_inode */
-+#define Y_IGET(sb, inum) iget((sb), (inum))
-+static void yaffs_read_inode(struct inode *inode);
-+
-+#else
-+/* Call local equivalent */
-+#define YAFFS_USE_OWN_IGET
-+#define Y_IGET(sb, inum) yaffs_iget((sb), (inum))
-+
-+static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino);
-+#endif
-+
-+/*#define T(x) printk x */
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18))
-+#define yaffs_InodeToObjectLV(iptr) ((iptr)->i_private)
-+#else
-+#define yaffs_InodeToObjectLV(iptr) ((iptr)->u.generic_ip)
-+#endif
-+
-+#define yaffs_InodeToObject(iptr) ((yaffs_Object *)(yaffs_InodeToObjectLV(iptr)))
-+#define yaffs_DentryToObject(dptr) yaffs_InodeToObject((dptr)->d_inode)
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
-+#define yaffs_SuperToDevice(sb)	((yaffs_Device *)sb->s_fs_info)
-+#else
-+#define yaffs_SuperToDevice(sb)	((yaffs_Device *)sb->u.generic_sbp)
-+#endif
-+
-+static void yaffs_put_super(struct super_block *sb);
-+
-+static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n,
-+				loff_t *pos);
-+static ssize_t yaffs_hold_space(struct file *f);
-+static void yaffs_release_space(struct file *f);
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
-+static int yaffs_file_flush(struct file *file, fl_owner_t id);
-+#else
-+static int yaffs_file_flush(struct file *file);
-+#endif
-+
-+static int yaffs_sync_object(struct file *file, struct dentry *dentry,
-+				int datasync);
-+
-+static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir);
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
-+static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode,
-+			struct nameidata *n);
-+static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry,
-+					struct nameidata *n);
-+#else
-+static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode);
-+static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry);
-+#endif
-+static int yaffs_link(struct dentry *old_dentry, struct inode *dir,
-+			struct dentry *dentry);
-+static int yaffs_unlink(struct inode *dir, struct dentry *dentry);
-+static int yaffs_symlink(struct inode *dir, struct dentry *dentry,
-+			const char *symname);
-+static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode);
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
-+static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
-+			dev_t dev);
-+#else
-+static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
-+			int dev);
-+#endif
-+static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry,
-+			struct inode *new_dir, struct dentry *new_dentry);
-+static int yaffs_setattr(struct dentry *dentry, struct iattr *attr);
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
-+static int yaffs_sync_fs(struct super_block *sb, int wait);
-+static void yaffs_write_super(struct super_block *sb);
-+#else
-+static int yaffs_sync_fs(struct super_block *sb);
-+static int yaffs_write_super(struct super_block *sb);
-+#endif
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
-+static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf);
-+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
-+static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf);
-+#else
-+static int yaffs_statfs(struct super_block *sb, struct statfs *buf);
-+#endif
-+
-+#ifdef YAFFS_HAS_PUT_INODE
-+static void yaffs_put_inode(struct inode *inode);
-+#endif
-+
-+static void yaffs_delete_inode(struct inode *);
-+static void yaffs_clear_inode(struct inode *);
-+
-+static int yaffs_readpage(struct file *file, struct page *page);
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
-+static int yaffs_writepage(struct page *page, struct writeback_control *wbc);
-+#else
-+static int yaffs_writepage(struct page *page);
-+#endif
-+
-+
-+#if (YAFFS_USE_WRITE_BEGIN_END != 0)
-+static int yaffs_write_begin(struct file *filp, struct address_space *mapping,
-+				loff_t pos, unsigned len, unsigned flags,
-+				struct page **pagep, void **fsdata);
-+static int yaffs_write_end(struct file *filp, struct address_space *mapping,
-+				loff_t pos, unsigned len, unsigned copied,
-+				struct page *pg, void *fsdadata);
-+#else
-+static int yaffs_prepare_write(struct file *f, struct page *pg,
-+				unsigned offset, unsigned to);
-+static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset,
-+				unsigned to);
-+
-+#endif
-+
-+static int yaffs_readlink(struct dentry *dentry, char __user *buffer,
-+				int buflen);
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
-+static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd);
-+#else
-+static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd);
-+#endif
-+
-+static struct address_space_operations yaffs_file_address_operations = {
-+	.readpage = yaffs_readpage,
-+	.writepage = yaffs_writepage,
-+#if (YAFFS_USE_WRITE_BEGIN_END > 0)
-+	.write_begin = yaffs_write_begin,
-+	.write_end = yaffs_write_end,
-+#else
-+	.prepare_write = yaffs_prepare_write,
-+	.commit_write = yaffs_commit_write,
-+#endif
-+};
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22))
-+static const struct file_operations yaffs_file_operations = {
-+	.read = do_sync_read,
-+	.write = do_sync_write,
-+	.aio_read = generic_file_aio_read,
-+	.aio_write = generic_file_aio_write,
-+	.mmap = generic_file_mmap,
-+	.flush = yaffs_file_flush,
-+	.fsync = yaffs_sync_object,
-+	.splice_read = generic_file_splice_read,
-+	.splice_write = generic_file_splice_write,
-+	.llseek = generic_file_llseek,
-+};
-+
-+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18))
-+
-+static const struct file_operations yaffs_file_operations = {
-+	.read = do_sync_read,
-+	.write = do_sync_write,
-+	.aio_read = generic_file_aio_read,
-+	.aio_write = generic_file_aio_write,
-+	.mmap = generic_file_mmap,
-+	.flush = yaffs_file_flush,
-+	.fsync = yaffs_sync_object,
-+	.sendfile = generic_file_sendfile,
-+};
-+
-+#else
-+
-+static const struct file_operations yaffs_file_operations = {
-+	.read = generic_file_read,
-+	.write = generic_file_write,
-+	.mmap = generic_file_mmap,
-+	.flush = yaffs_file_flush,
-+	.fsync = yaffs_sync_object,
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
-+	.sendfile = generic_file_sendfile,
-+#endif
-+};
-+#endif
-+
-+static const struct inode_operations yaffs_file_inode_operations = {
-+	.setattr = yaffs_setattr,
-+};
-+
-+static const struct inode_operations yaffs_symlink_inode_operations = {
-+	.readlink = yaffs_readlink,
-+	.follow_link = yaffs_follow_link,
-+	.setattr = yaffs_setattr,
-+};
-+
-+static const struct inode_operations yaffs_dir_inode_operations = {
-+	.create = yaffs_create,
-+	.lookup = yaffs_lookup,
-+	.link = yaffs_link,
-+	.unlink = yaffs_unlink,
-+	.symlink = yaffs_symlink,
-+	.mkdir = yaffs_mkdir,
-+	.rmdir = yaffs_unlink,
-+	.mknod = yaffs_mknod,
-+	.rename = yaffs_rename,
-+	.setattr = yaffs_setattr,
-+};
-+
-+static const struct file_operations yaffs_dir_operations = {
-+	.read = generic_read_dir,
-+	.readdir = yaffs_readdir,
-+	.fsync = yaffs_sync_object,
-+};
-+
-+static const struct super_operations yaffs_super_ops = {
-+	.statfs = yaffs_statfs,
-+
-+#ifndef YAFFS_USE_OWN_IGET
-+	.read_inode = yaffs_read_inode,
-+#endif
-+#ifdef YAFFS_HAS_PUT_INODE
-+	.put_inode = yaffs_put_inode,
-+#endif
-+	.put_super = yaffs_put_super,
-+	.delete_inode = yaffs_delete_inode,
-+	.clear_inode = yaffs_clear_inode,
-+	.sync_fs = yaffs_sync_fs,
-+	.write_super = yaffs_write_super,
-+};
-+
-+static void yaffs_GrossLock(yaffs_Device *dev)
-+{
-+	T(YAFFS_TRACE_OS, ("yaffs locking %p\n", current));
-+	down(&dev->grossLock);
-+	T(YAFFS_TRACE_OS, ("yaffs locked %p\n", current));
-+}
-+
-+static void yaffs_GrossUnlock(yaffs_Device *dev)
-+{
-+	T(YAFFS_TRACE_OS, ("yaffs unlocking %p\n", current));
-+	up(&dev->grossLock);
-+}
-+
-+static int yaffs_readlink(struct dentry *dentry, char __user *buffer,
-+			int buflen)
-+{
-+	unsigned char *alias;
-+	int ret;
-+
-+	yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev;
-+
-+	yaffs_GrossLock(dev);
-+
-+	alias = yaffs_GetSymlinkAlias(yaffs_DentryToObject(dentry));
-+
-+	yaffs_GrossUnlock(dev);
-+
-+	if (!alias)
-+		return -ENOMEM;
-+
-+	ret = vfs_readlink(dentry, buffer, buflen, alias);
-+	kfree(alias);
-+	return ret;
-+}
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
-+static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd)
-+#else
-+static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd)
-+#endif
-+{
-+	unsigned char *alias;
-+	int ret;
-+	yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev;
-+
-+	yaffs_GrossLock(dev);
-+
-+	alias = yaffs_GetSymlinkAlias(yaffs_DentryToObject(dentry));
-+
-+	yaffs_GrossUnlock(dev);
-+
-+	if (!alias) {
-+		ret = -ENOMEM;
-+		goto out;
-+	}
-+
-+	ret = vfs_follow_link(nd, alias);
-+	kfree(alias);
-+out:
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
-+	return ERR_PTR(ret);
-+#else
-+	return ret;
-+#endif
-+}
-+
-+struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev,
-+				yaffs_Object *obj);
-+
-+/*
-+ * Lookup is used to find objects in the fs
-+ */
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
-+
-+static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry,
-+				struct nameidata *n)
-+#else
-+static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry)
-+#endif
-+{
-+	yaffs_Object *obj;
-+	struct inode *inode = NULL;	/* NCB 2.5/2.6 needs NULL here */
-+
-+	yaffs_Device *dev = yaffs_InodeToObject(dir)->myDev;
-+
-+	yaffs_GrossLock(dev);
-+
-+	T(YAFFS_TRACE_OS,
-+		("yaffs_lookup for %d:%s\n",
-+		yaffs_InodeToObject(dir)->objectId, dentry->d_name.name));
-+
-+	obj = yaffs_FindObjectByName(yaffs_InodeToObject(dir),
-+					dentry->d_name.name);
-+
-+	obj = yaffs_GetEquivalentObject(obj);	/* in case it was a hardlink */
-+
-+	/* Can't hold gross lock when calling yaffs_get_inode() */
-+	yaffs_GrossUnlock(dev);
-+
-+	if (obj) {
-+		T(YAFFS_TRACE_OS,
-+			("yaffs_lookup found %d\n", obj->objectId));
-+
-+		inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj);
-+
-+		if (inode) {
-+			T(YAFFS_TRACE_OS,
-+				("yaffs_loookup dentry \n"));
-+/* #if 0 asserted by NCB for 2.5/6 compatability - falls through to
-+ * d_add even if NULL inode */
-+#if 0
-+			/*dget(dentry); // try to solve directory bug */
-+			d_add(dentry, inode);
-+
-+			/* return dentry; */
-+			return NULL;
-+#endif
-+		}
-+
-+	} else {
-+		T(YAFFS_TRACE_OS, ("yaffs_lookup not found\n"));
-+
-+	}
-+
-+/* added NCB for 2.5/6 compatability - forces add even if inode is
-+ * NULL which creates dentry hash */
-+	d_add(dentry, inode);
-+
-+	return NULL;
-+}
-+
-+
-+#ifdef YAFFS_HAS_PUT_INODE
-+
-+/* For now put inode is just for debugging
-+ * Put inode is called when the inode **structure** is put.
-+ */
-+static void yaffs_put_inode(struct inode *inode)
-+{
-+	T(YAFFS_TRACE_OS,
-+		("yaffs_put_inode: ino %d, count %d\n", (int)inode->i_ino,
-+		atomic_read(&inode->i_count)));
-+
-+}
-+#endif
-+
-+/* clear is called to tell the fs to release any per-inode data it holds */
-+static void yaffs_clear_inode(struct inode *inode)
-+{
-+	yaffs_Object *obj;
-+	yaffs_Device *dev;
-+
-+	obj = yaffs_InodeToObject(inode);
-+
-+	T(YAFFS_TRACE_OS,
-+		("yaffs_clear_inode: ino %d, count %d %s\n", (int)inode->i_ino,
-+		atomic_read(&inode->i_count),
-+		obj ? "object exists" : "null object"));
-+
-+	if (obj) {
-+		dev = obj->myDev;
-+		yaffs_GrossLock(dev);
-+
-+		/* Clear the association between the inode and
-+		 * the yaffs_Object.
-+		 */
-+		obj->myInode = NULL;
-+		yaffs_InodeToObjectLV(inode) = NULL;
-+
-+		/* If the object freeing was deferred, then the real
-+		 * free happens now.
-+		 * This should fix the inode inconsistency problem.
-+		 */
-+
-+		yaffs_HandleDeferedFree(obj);
-+
-+		yaffs_GrossUnlock(dev);
-+	}
-+
-+}
-+
-+/* delete is called when the link count is zero and the inode
-+ * is put (ie. nobody wants to know about it anymore, time to
-+ * delete the file).
-+ * NB Must call clear_inode()
-+ */
-+static void yaffs_delete_inode(struct inode *inode)
-+{
-+	yaffs_Object *obj = yaffs_InodeToObject(inode);
-+	yaffs_Device *dev;
-+
-+	T(YAFFS_TRACE_OS,
-+		("yaffs_delete_inode: ino %d, count %d %s\n", (int)inode->i_ino,
-+		atomic_read(&inode->i_count),
-+		obj ? "object exists" : "null object"));
-+
-+	if (obj) {
-+		dev = obj->myDev;
-+		yaffs_GrossLock(dev);
-+		yaffs_DeleteObject(obj);
-+		yaffs_GrossUnlock(dev);
-+	}
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
-+	truncate_inode_pages(&inode->i_data, 0);
-+#endif
-+	clear_inode(inode);
-+}
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
-+static int yaffs_file_flush(struct file *file, fl_owner_t id)
-+#else
-+static int yaffs_file_flush(struct file *file)
-+#endif
-+{
-+	yaffs_Object *obj = yaffs_DentryToObject(file->f_dentry);
-+
-+	yaffs_Device *dev = obj->myDev;
-+
-+	T(YAFFS_TRACE_OS,
-+		("yaffs_file_flush object %d (%s)\n", obj->objectId,
-+		obj->dirty ? "dirty" : "clean"));
-+
-+	yaffs_GrossLock(dev);
-+
-+	yaffs_FlushFile(obj, 1);
-+
-+	yaffs_GrossUnlock(dev);
-+
-+	return 0;
-+}
-+
-+static int yaffs_readpage_nolock(struct file *f, struct page *pg)
-+{
-+	/* Lifted from jffs2 */
-+
-+	yaffs_Object *obj;
-+	unsigned char *pg_buf;
-+	int ret;
-+
-+	yaffs_Device *dev;
-+
-+	T(YAFFS_TRACE_OS, ("yaffs_readpage at %08x, size %08x\n",
-+			(unsigned)(pg->index << PAGE_CACHE_SHIFT),
-+			(unsigned)PAGE_CACHE_SIZE));
-+
-+	obj = yaffs_DentryToObject(f->f_dentry);
-+
-+	dev = obj->myDev;
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
-+	BUG_ON(!PageLocked(pg));
-+#else
-+	if (!PageLocked(pg))
-+		PAGE_BUG(pg);
-+#endif
-+
-+	pg_buf = kmap(pg);
-+	/* FIXME: Can kmap fail? */
-+
-+	yaffs_GrossLock(dev);
-+
-+	ret = yaffs_ReadDataFromFile(obj, pg_buf,
-+				pg->index << PAGE_CACHE_SHIFT,
-+				PAGE_CACHE_SIZE);
-+
-+	yaffs_GrossUnlock(dev);
-+
-+	if (ret >= 0)
-+		ret = 0;
-+
-+	if (ret) {
-+		ClearPageUptodate(pg);
-+		SetPageError(pg);
-+	} else {
-+		SetPageUptodate(pg);
-+		ClearPageError(pg);
-+	}
-+
-+	flush_dcache_page(pg);
-+	kunmap(pg);
-+
-+	T(YAFFS_TRACE_OS, ("yaffs_readpage done\n"));
-+	return ret;
-+}
-+
-+static int yaffs_readpage_unlock(struct file *f, struct page *pg)
-+{
-+	int ret = yaffs_readpage_nolock(f, pg);
-+	UnlockPage(pg);
-+	return ret;
-+}
-+
-+static int yaffs_readpage(struct file *f, struct page *pg)
-+{
-+	return yaffs_readpage_unlock(f, pg);
-+}
-+
-+/* writepage inspired by/stolen from smbfs */
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
-+static int yaffs_writepage(struct page *page, struct writeback_control *wbc)
-+#else
-+static int yaffs_writepage(struct page *page)
-+#endif
-+{
-+	struct address_space *mapping = page->mapping;
-+	loff_t offset = (loff_t) page->index << PAGE_CACHE_SHIFT;
-+	struct inode *inode;
-+	unsigned long end_index;
-+	char *buffer;
-+	yaffs_Object *obj;
-+	int nWritten = 0;
-+	unsigned nBytes;
-+
-+	if (!mapping)
-+		BUG();
-+	inode = mapping->host;
-+	if (!inode)
-+		BUG();
-+
-+	if (offset > inode->i_size) {
-+		T(YAFFS_TRACE_OS,
-+			("yaffs_writepage at %08x, inode size = %08x!!!\n",
-+			(unsigned)(page->index << PAGE_CACHE_SHIFT),
-+			(unsigned)inode->i_size));
-+		T(YAFFS_TRACE_OS,
-+			("                -> don't care!!\n"));
-+		unlock_page(page);
-+		return 0;
-+	}
-+
-+	end_index = inode->i_size >> PAGE_CACHE_SHIFT;
-+
-+	/* easy case */
-+	if (page->index < end_index)
-+		nBytes = PAGE_CACHE_SIZE;
-+	else
-+		nBytes = inode->i_size & (PAGE_CACHE_SIZE - 1);
-+
-+	get_page(page);
-+
-+	buffer = kmap(page);
-+
-+	obj = yaffs_InodeToObject(inode);
-+	yaffs_GrossLock(obj->myDev);
-+
-+	T(YAFFS_TRACE_OS,
-+		("yaffs_writepage at %08x, size %08x\n",
-+		(unsigned)(page->index << PAGE_CACHE_SHIFT), nBytes));
-+	T(YAFFS_TRACE_OS,
-+		("writepag0: obj = %05x, ino = %05x\n",
-+		(int)obj->variant.fileVariant.fileSize, (int)inode->i_size));
-+
-+	nWritten = yaffs_WriteDataToFile(obj, buffer,
-+			page->index << PAGE_CACHE_SHIFT, nBytes, 0);
-+
-+	T(YAFFS_TRACE_OS,
-+		("writepag1: obj = %05x, ino = %05x\n",
-+		(int)obj->variant.fileVariant.fileSize, (int)inode->i_size));
-+
-+	yaffs_GrossUnlock(obj->myDev);
-+
-+	kunmap(page);
-+	SetPageUptodate(page);
-+	UnlockPage(page);
-+	put_page(page);
-+
-+	return (nWritten == nBytes) ? 0 : -ENOSPC;
-+}
-+
-+
-+#if (YAFFS_USE_WRITE_BEGIN_END > 0)
-+static int yaffs_write_begin(struct file *filp, struct address_space *mapping,
-+				loff_t pos, unsigned len, unsigned flags,
-+				struct page **pagep, void **fsdata)
-+{
-+	struct page *pg = NULL;
-+	pgoff_t index = pos >> PAGE_CACHE_SHIFT;
-+	uint32_t offset = pos & (PAGE_CACHE_SIZE - 1);
-+	uint32_t to = offset + len;
-+
-+	int ret = 0;
-+	int space_held = 0;
-+
-+	T(YAFFS_TRACE_OS, ("start yaffs_write_begin\n"));
-+	/* Get a page */
-+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28)
-+	pg = grab_cache_page_write_begin(mapping, index, flags);
-+#else
-+	pg = __grab_cache_page(mapping, index);
-+#endif
-+
-+	*pagep = pg;
-+	if (!pg) {
-+		ret =  -ENOMEM;
-+		goto out;
-+	}
-+	/* Get fs space */
-+	space_held = yaffs_hold_space(filp);
-+
-+	if (!space_held) {
-+		ret = -ENOSPC;
-+		goto out;
-+	}
-+
-+	/* Update page if required */
-+
-+	if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE))
-+		ret = yaffs_readpage_nolock(filp, pg);
-+
-+	if (ret)
-+		goto out;
-+
-+	/* Happy path return */
-+	T(YAFFS_TRACE_OS, ("end yaffs_write_begin - ok\n"));
-+
-+	return 0;
-+
-+out:
-+	T(YAFFS_TRACE_OS, ("end yaffs_write_begin fail returning %d\n", ret));
-+	if (space_held)
-+		yaffs_release_space(filp);
-+	if (pg) {
-+		unlock_page(pg);
-+		page_cache_release(pg);
-+	}
-+	return ret;
-+}
-+
-+#else
-+
-+static int yaffs_prepare_write(struct file *f, struct page *pg,
-+				unsigned offset, unsigned to)
-+{
-+	T(YAFFS_TRACE_OS, ("yaffs_prepair_write\n"));
-+
-+	if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE))
-+		return yaffs_readpage_nolock(f, pg);
-+	return 0;
-+}
-+#endif
-+
-+#if (YAFFS_USE_WRITE_BEGIN_END > 0)
-+static int yaffs_write_end(struct file *filp, struct address_space *mapping,
-+				loff_t pos, unsigned len, unsigned copied,
-+				struct page *pg, void *fsdadata)
-+{
-+	int ret = 0;
-+	void *addr, *kva;
-+	uint32_t offset_into_page = pos & (PAGE_CACHE_SIZE - 1);
-+
-+	kva = kmap(pg);
-+	addr = kva + offset_into_page;
-+
-+	T(YAFFS_TRACE_OS,
-+		("yaffs_write_end addr %x pos %x nBytes %d\n",
-+		(unsigned) addr,
-+		(int)pos, copied));
-+
-+	ret = yaffs_file_write(filp, addr, copied, &pos);
-+
-+	if (ret != copied) {
-+		T(YAFFS_TRACE_OS,
-+			("yaffs_write_end not same size ret %d  copied %d\n",
-+			ret, copied));
-+		SetPageError(pg);
-+		ClearPageUptodate(pg);
-+	} else {
-+		SetPageUptodate(pg);
-+	}
-+
-+	kunmap(pg);
-+
-+	yaffs_release_space(filp);
-+	unlock_page(pg);
-+	page_cache_release(pg);
-+	return ret;
-+}
-+#else
-+
-+static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset,
-+				unsigned to)
-+{
-+	void *addr, *kva;
-+
-+	loff_t pos = (((loff_t) pg->index) << PAGE_CACHE_SHIFT) + offset;
-+	int nBytes = to - offset;
-+	int nWritten;
-+
-+	unsigned spos = pos;
-+	unsigned saddr;
-+
-+	kva = kmap(pg);
-+	addr = kva + offset;
-+
-+	saddr = (unsigned) addr;
-+
-+	T(YAFFS_TRACE_OS,
-+		("yaffs_commit_write addr %x pos %x nBytes %d\n",
-+		saddr, spos, nBytes));
-+
-+	nWritten = yaffs_file_write(f, addr, nBytes, &pos);
-+
-+	if (nWritten != nBytes) {
-+		T(YAFFS_TRACE_OS,
-+			("yaffs_commit_write not same size nWritten %d  nBytes %d\n",
-+			nWritten, nBytes));
-+		SetPageError(pg);
-+		ClearPageUptodate(pg);
-+	} else {
-+		SetPageUptodate(pg);
-+	}
-+
-+	kunmap(pg);
-+
-+	T(YAFFS_TRACE_OS,
-+		("yaffs_commit_write returning %d\n",
-+		nWritten == nBytes ? 0 : nWritten));
-+
-+	return nWritten == nBytes ? 0 : nWritten;
-+}
-+#endif
-+
-+
-+static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object *obj)
-+{
-+	if (inode && obj) {
-+
-+
-+		/* Check mode against the variant type and attempt to repair if broken. */
-+		__u32 mode = obj->yst_mode;
-+		switch (obj->variantType) {
-+		case YAFFS_OBJECT_TYPE_FILE:
-+			if (!S_ISREG(mode)) {
-+				obj->yst_mode &= ~S_IFMT;
-+				obj->yst_mode |= S_IFREG;
-+			}
-+
-+			break;
-+		case YAFFS_OBJECT_TYPE_SYMLINK:
-+			if (!S_ISLNK(mode)) {
-+				obj->yst_mode &= ~S_IFMT;
-+				obj->yst_mode |= S_IFLNK;
-+			}
-+
-+			break;
-+		case YAFFS_OBJECT_TYPE_DIRECTORY:
-+			if (!S_ISDIR(mode)) {
-+				obj->yst_mode &= ~S_IFMT;
-+				obj->yst_mode |= S_IFDIR;
-+			}
-+
-+			break;
-+		case YAFFS_OBJECT_TYPE_UNKNOWN:
-+		case YAFFS_OBJECT_TYPE_HARDLINK:
-+		case YAFFS_OBJECT_TYPE_SPECIAL:
-+		default:
-+			/* TODO? */
-+			break;
-+		}
-+
-+		inode->i_flags |= S_NOATIME;
-+
-+		inode->i_ino = obj->objectId;
-+		inode->i_mode = obj->yst_mode;
-+		inode->i_uid = obj->yst_uid;
-+		inode->i_gid = obj->yst_gid;
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
-+		inode->i_blksize = inode->i_sb->s_blocksize;
-+#endif
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
-+
-+		inode->i_rdev = old_decode_dev(obj->yst_rdev);
-+		inode->i_atime.tv_sec = (time_t) (obj->yst_atime);
-+		inode->i_atime.tv_nsec = 0;
-+		inode->i_mtime.tv_sec = (time_t) obj->yst_mtime;
-+		inode->i_mtime.tv_nsec = 0;
-+		inode->i_ctime.tv_sec = (time_t) obj->yst_ctime;
-+		inode->i_ctime.tv_nsec = 0;
-+#else
-+		inode->i_rdev = obj->yst_rdev;
-+		inode->i_atime = obj->yst_atime;
-+		inode->i_mtime = obj->yst_mtime;
-+		inode->i_ctime = obj->yst_ctime;
-+#endif
-+		inode->i_size = yaffs_GetObjectFileLength(obj);
-+		inode->i_blocks = (inode->i_size + 511) >> 9;
-+
-+		inode->i_nlink = yaffs_GetObjectLinkCount(obj);
-+
-+		T(YAFFS_TRACE_OS,
-+			("yaffs_FillInode mode %x uid %d gid %d size %d count %d\n",
-+			inode->i_mode, inode->i_uid, inode->i_gid,
-+			(int)inode->i_size, atomic_read(&inode->i_count)));
-+
-+		switch (obj->yst_mode & S_IFMT) {
-+		default:	/* fifo, device or socket */
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
-+			init_special_inode(inode, obj->yst_mode,
-+					old_decode_dev(obj->yst_rdev));
-+#else
-+			init_special_inode(inode, obj->yst_mode,
-+					(dev_t) (obj->yst_rdev));
-+#endif
-+			break;
-+		case S_IFREG:	/* file */
-+			inode->i_op = &yaffs_file_inode_operations;
-+			inode->i_fop = &yaffs_file_operations;
-+			inode->i_mapping->a_ops =
-+				&yaffs_file_address_operations;
-+			break;
-+		case S_IFDIR:	/* directory */
-+			inode->i_op = &yaffs_dir_inode_operations;
-+			inode->i_fop = &yaffs_dir_operations;
-+			break;
-+		case S_IFLNK:	/* symlink */
-+			inode->i_op = &yaffs_symlink_inode_operations;
-+			break;
-+		}
-+
-+		yaffs_InodeToObjectLV(inode) = obj;
-+
-+		obj->myInode = inode;
-+
-+	} else {
-+		T(YAFFS_TRACE_OS,
-+			("yaffs_FileInode invalid parameters\n"));
-+	}
-+
-+}
-+
-+struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev,
-+				yaffs_Object *obj)
-+{
-+	struct inode *inode;
-+
-+	if (!sb) {
-+		T(YAFFS_TRACE_OS,
-+			("yaffs_get_inode for NULL super_block!!\n"));
-+		return NULL;
-+
-+	}
-+
-+	if (!obj) {
-+		T(YAFFS_TRACE_OS,
-+			("yaffs_get_inode for NULL object!!\n"));
-+		return NULL;
-+
-+	}
-+
-+	T(YAFFS_TRACE_OS,
-+		("yaffs_get_inode for object %d\n", obj->objectId));
-+
-+	inode = Y_IGET(sb, obj->objectId);
-+	if (IS_ERR(inode))
-+		return NULL;
-+
-+	/* NB Side effect: iget calls back to yaffs_read_inode(). */
-+	/* iget also increments the inode's i_count */
-+	/* NB You can't be holding grossLock or deadlock will happen! */
-+
-+	return inode;
-+}
-+
-+static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n,
-+				loff_t *pos)
-+{
-+	yaffs_Object *obj;
-+	int nWritten, ipos;
-+	struct inode *inode;
-+	yaffs_Device *dev;
-+
-+	obj = yaffs_DentryToObject(f->f_dentry);
-+
-+	dev = obj->myDev;
-+
-+	yaffs_GrossLock(dev);
-+
-+	inode = f->f_dentry->d_inode;
-+
-+	if (!S_ISBLK(inode->i_mode) && f->f_flags & O_APPEND)
-+		ipos = inode->i_size;
-+	else
-+		ipos = *pos;
-+
-+	if (!obj)
-+		T(YAFFS_TRACE_OS,
-+			("yaffs_file_write: hey obj is null!\n"));
-+	else
-+		T(YAFFS_TRACE_OS,
-+			("yaffs_file_write about to write writing %zu bytes"
-+			"to object %d at %d\n",
-+			n, obj->objectId, ipos));
-+
-+	nWritten = yaffs_WriteDataToFile(obj, buf, ipos, n, 0);
-+
-+	T(YAFFS_TRACE_OS,
-+		("yaffs_file_write writing %zu bytes, %d written at %d\n",
-+		n, nWritten, ipos));
-+
-+	if (nWritten > 0) {
-+		ipos += nWritten;
-+		*pos = ipos;
-+		if (ipos > inode->i_size) {
-+			inode->i_size = ipos;
-+			inode->i_blocks = (ipos + 511) >> 9;
-+
-+			T(YAFFS_TRACE_OS,
-+				("yaffs_file_write size updated to %d bytes, "
-+				"%d blocks\n",
-+				ipos, (int)(inode->i_blocks)));
-+		}
-+
-+	}
-+	yaffs_GrossUnlock(dev);
-+	return nWritten == 0 ? -ENOSPC : nWritten;
-+}
-+
-+/* Space holding and freeing is done to ensure we have space available for write_begin/end */
-+/* For now we just assume few parallel writes and check against a small number. */
-+/* Todo: need to do this with a counter to handle parallel reads better */
-+
-+static ssize_t yaffs_hold_space(struct file *f)
-+{
-+	yaffs_Object *obj;
-+	yaffs_Device *dev;
-+
-+	int nFreeChunks;
-+
-+
-+	obj = yaffs_DentryToObject(f->f_dentry);
-+
-+	dev = obj->myDev;
-+
-+	yaffs_GrossLock(dev);
-+
-+	nFreeChunks = yaffs_GetNumberOfFreeChunks(dev);
-+
-+	yaffs_GrossUnlock(dev);
-+
-+	return (nFreeChunks > 20) ? 1 : 0;
-+}
-+
-+static void yaffs_release_space(struct file *f)
-+{
-+	yaffs_Object *obj;
-+	yaffs_Device *dev;
-+
-+
-+	obj = yaffs_DentryToObject(f->f_dentry);
-+
-+	dev = obj->myDev;
-+
-+	yaffs_GrossLock(dev);
-+
-+
-+	yaffs_GrossUnlock(dev);
-+}
-+
-+static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir)
-+{
-+	yaffs_Object *obj;
-+	yaffs_Device *dev;
-+	struct inode *inode = f->f_dentry->d_inode;
-+	unsigned long offset, curoffs;
-+	struct ylist_head *i;
-+	yaffs_Object *l;
-+
-+	char name[YAFFS_MAX_NAME_LENGTH + 1];
-+
-+	obj = yaffs_DentryToObject(f->f_dentry);
-+	dev = obj->myDev;
-+
-+	yaffs_GrossLock(dev);
-+
-+	offset = f->f_pos;
-+
-+	T(YAFFS_TRACE_OS, ("yaffs_readdir: starting at %d\n", (int)offset));
-+
-+	if (offset == 0) {
-+		T(YAFFS_TRACE_OS,
-+			("yaffs_readdir: entry . ino %d \n",
-+			(int)inode->i_ino));
-+		if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) < 0)
-+			goto out;
-+		offset++;
-+		f->f_pos++;
-+	}
-+	if (offset == 1) {
-+		T(YAFFS_TRACE_OS,
-+			("yaffs_readdir: entry .. ino %d \n",
-+			(int)f->f_dentry->d_parent->d_inode->i_ino));
-+		if (filldir(dirent, "..", 2, offset,
-+			f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0)
-+			goto out;
-+		offset++;
-+		f->f_pos++;
-+	}
-+
-+	curoffs = 1;
-+
-+	/* If the directory has changed since the open or last call to
-+	   readdir, rewind to after the 2 canned entries. */
-+
-+	if (f->f_version != inode->i_version) {
-+		offset = 2;
-+		f->f_pos = offset;
-+		f->f_version = inode->i_version;
-+	}
-+
-+	ylist_for_each(i, &obj->variant.directoryVariant.children) {
-+		curoffs++;
-+		if (curoffs >= offset) {
-+			l = ylist_entry(i, yaffs_Object, siblings);
-+
-+			yaffs_GetObjectName(l, name,
-+					    YAFFS_MAX_NAME_LENGTH + 1);
-+			T(YAFFS_TRACE_OS,
-+			  ("yaffs_readdir: %s inode %d\n", name,
-+			   yaffs_GetObjectInode(l)));
-+
-+			if (filldir(dirent,
-+					name,
-+					strlen(name),
-+					offset,
-+					yaffs_GetObjectInode(l),
-+					yaffs_GetObjectType(l)) < 0)
-+				goto up_and_out;
-+
-+			offset++;
-+			f->f_pos++;
-+		}
-+	}
-+
-+up_and_out:
-+out:
-+	yaffs_GrossUnlock(dev);
-+
-+	return 0;
-+}
-+
-+/*
-+ * File creation. Allocate an inode, and we're done..
-+ */
-+
-+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
-+#define YCRED(x) x
-+#else
-+#define YCRED(x) (x->cred)
-+#endif
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
-+static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
-+			dev_t rdev)
-+#else
-+static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
-+			int rdev)
-+#endif
-+{
-+	struct inode *inode;
-+
-+	yaffs_Object *obj = NULL;
-+	yaffs_Device *dev;
-+
-+	yaffs_Object *parent = yaffs_InodeToObject(dir);
-+
-+	int error = -ENOSPC;
-+	uid_t uid = YCRED(current)->fsuid;
-+	gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
-+
-+	if ((dir->i_mode & S_ISGID) && S_ISDIR(mode))
-+		mode |= S_ISGID;
-+
-+	if (parent) {
-+		T(YAFFS_TRACE_OS,
-+			("yaffs_mknod: parent object %d type %d\n",
-+			parent->objectId, parent->variantType));
-+	} else {
-+		T(YAFFS_TRACE_OS,
-+			("yaffs_mknod: could not get parent object\n"));
-+		return -EPERM;
-+	}
-+
-+	T(YAFFS_TRACE_OS, ("yaffs_mknod: making oject for %s, "
-+			"mode %x dev %x\n",
-+			dentry->d_name.name, mode, rdev));
-+
-+	dev = parent->myDev;
-+
-+	yaffs_GrossLock(dev);
-+
-+	switch (mode & S_IFMT) {
-+	default:
-+		/* Special (socket, fifo, device...) */
-+		T(YAFFS_TRACE_OS, ("yaffs_mknod: making special\n"));
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
-+		obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid,
-+				gid, old_encode_dev(rdev));
-+#else
-+		obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid,
-+				gid, rdev);
-+#endif
-+		break;
-+	case S_IFREG:		/* file          */
-+		T(YAFFS_TRACE_OS, ("yaffs_mknod: making file\n"));
-+		obj = yaffs_MknodFile(parent, dentry->d_name.name, mode, uid,
-+				gid);
-+		break;
-+	case S_IFDIR:		/* directory */
-+		T(YAFFS_TRACE_OS,
-+			("yaffs_mknod: making directory\n"));
-+		obj = yaffs_MknodDirectory(parent, dentry->d_name.name, mode,
-+					uid, gid);
-+		break;
-+	case S_IFLNK:		/* symlink */
-+		T(YAFFS_TRACE_OS, ("yaffs_mknod: making symlink\n"));
-+		obj = NULL;	/* Do we ever get here? */
-+		break;
-+	}
-+
-+	/* Can not call yaffs_get_inode() with gross lock held */
-+	yaffs_GrossUnlock(dev);
-+
-+	if (obj) {
-+		inode = yaffs_get_inode(dir->i_sb, mode, rdev, obj);
-+		d_instantiate(dentry, inode);
-+		T(YAFFS_TRACE_OS,
-+			("yaffs_mknod created object %d count = %d\n",
-+			obj->objectId, atomic_read(&inode->i_count)));
-+		error = 0;
-+	} else {
-+		T(YAFFS_TRACE_OS,
-+			("yaffs_mknod failed making object\n"));
-+		error = -ENOMEM;
-+	}
-+
-+	return error;
-+}
-+
-+static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
-+{
-+	int retVal;
-+	T(YAFFS_TRACE_OS, ("yaffs_mkdir\n"));
-+	retVal = yaffs_mknod(dir, dentry, mode | S_IFDIR, 0);
-+	return retVal;
-+}
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
-+static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode,
-+			struct nameidata *n)
-+#else
-+static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode)
-+#endif
-+{
-+	T(YAFFS_TRACE_OS, ("yaffs_create\n"));
-+	return yaffs_mknod(dir, dentry, mode | S_IFREG, 0);
-+}
-+
-+static int yaffs_unlink(struct inode *dir, struct dentry *dentry)
-+{
-+	int retVal;
-+
-+	yaffs_Device *dev;
-+
-+	T(YAFFS_TRACE_OS,
-+		("yaffs_unlink %d:%s\n", (int)(dir->i_ino),
-+		dentry->d_name.name));
-+
-+	dev = yaffs_InodeToObject(dir)->myDev;
-+
-+	yaffs_GrossLock(dev);
-+
-+	retVal = yaffs_Unlink(yaffs_InodeToObject(dir), dentry->d_name.name);
-+
-+	if (retVal == YAFFS_OK) {
-+		dentry->d_inode->i_nlink--;
-+		dir->i_version++;
-+		yaffs_GrossUnlock(dev);
-+		mark_inode_dirty(dentry->d_inode);
-+		return 0;
-+	}
-+	yaffs_GrossUnlock(dev);
-+	return -ENOTEMPTY;
-+}
-+
-+/*
-+ * Create a link...
-+ */
-+static int yaffs_link(struct dentry *old_dentry, struct inode *dir,
-+			struct dentry *dentry)
-+{
-+	struct inode *inode = old_dentry->d_inode;
-+	yaffs_Object *obj = NULL;
-+	yaffs_Object *link = NULL;
-+	yaffs_Device *dev;
-+
-+	T(YAFFS_TRACE_OS, ("yaffs_link\n"));
-+
-+	obj = yaffs_InodeToObject(inode);
-+	dev = obj->myDev;
-+
-+	yaffs_GrossLock(dev);
-+
-+	if (!S_ISDIR(inode->i_mode))		/* Don't link directories */
-+		link = yaffs_Link(yaffs_InodeToObject(dir), dentry->d_name.name,
-+			obj);
-+
-+	if (link) {
-+		old_dentry->d_inode->i_nlink = yaffs_GetObjectLinkCount(obj);
-+		d_instantiate(dentry, old_dentry->d_inode);
-+		atomic_inc(&old_dentry->d_inode->i_count);
-+		T(YAFFS_TRACE_OS,
-+			("yaffs_link link count %d i_count %d\n",
-+			old_dentry->d_inode->i_nlink,
-+			atomic_read(&old_dentry->d_inode->i_count)));
-+	}
-+
-+	yaffs_GrossUnlock(dev);
-+
-+	if (link)
-+		return 0;
-+
-+	return -EPERM;
-+}
-+
-+static int yaffs_symlink(struct inode *dir, struct dentry *dentry,
-+				const char *symname)
-+{
-+	yaffs_Object *obj;
-+	yaffs_Device *dev;
-+	uid_t uid = YCRED(current)->fsuid;
-+	gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
-+
-+	T(YAFFS_TRACE_OS, ("yaffs_symlink\n"));
-+
-+	dev = yaffs_InodeToObject(dir)->myDev;
-+	yaffs_GrossLock(dev);
-+	obj = yaffs_MknodSymLink(yaffs_InodeToObject(dir), dentry->d_name.name,
-+				S_IFLNK | S_IRWXUGO, uid, gid, symname);
-+	yaffs_GrossUnlock(dev);
-+
-+	if (obj) {
-+		struct inode *inode;
-+
-+		inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj);
-+		d_instantiate(dentry, inode);
-+		T(YAFFS_TRACE_OS, ("symlink created OK\n"));
-+		return 0;
-+	} else {
-+		T(YAFFS_TRACE_OS, ("symlink not created\n"));
-+	}
-+
-+	return -ENOMEM;
-+}
-+
-+static int yaffs_sync_object(struct file *file, struct dentry *dentry,
-+				int datasync)
-+{
-+
-+	yaffs_Object *obj;
-+	yaffs_Device *dev;
-+
-+	obj = yaffs_DentryToObject(dentry);
-+
-+	dev = obj->myDev;
-+
-+	T(YAFFS_TRACE_OS, ("yaffs_sync_object\n"));
-+	yaffs_GrossLock(dev);
-+	yaffs_FlushFile(obj, 1);
-+	yaffs_GrossUnlock(dev);
-+	return 0;
-+}
-+
-+/*
-+ * The VFS layer already does all the dentry stuff for rename.
-+ *
-+ * NB: POSIX says you can rename an object over an old object of the same name
-+ */
-+static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry,
-+			struct inode *new_dir, struct dentry *new_dentry)
-+{
-+	yaffs_Device *dev;
-+	int retVal = YAFFS_FAIL;
-+	yaffs_Object *target;
-+
-+	T(YAFFS_TRACE_OS, ("yaffs_rename\n"));
-+	dev = yaffs_InodeToObject(old_dir)->myDev;
-+
-+	yaffs_GrossLock(dev);
-+
-+	/* Check if the target is an existing directory that is not empty. */
-+	target = yaffs_FindObjectByName(yaffs_InodeToObject(new_dir),
-+				new_dentry->d_name.name);
-+
-+
-+
-+	if (target && target->variantType == YAFFS_OBJECT_TYPE_DIRECTORY &&
-+		!ylist_empty(&target->variant.directoryVariant.children)) {
-+
-+		T(YAFFS_TRACE_OS, ("target is non-empty dir\n"));
-+
-+		retVal = YAFFS_FAIL;
-+	} else {
-+		/* Now does unlinking internally using shadowing mechanism */
-+		T(YAFFS_TRACE_OS, ("calling yaffs_RenameObject\n"));
-+
-+		retVal = yaffs_RenameObject(yaffs_InodeToObject(old_dir),
-+				old_dentry->d_name.name,
-+				yaffs_InodeToObject(new_dir),
-+				new_dentry->d_name.name);
-+	}
-+	yaffs_GrossUnlock(dev);
-+
-+	if (retVal == YAFFS_OK) {
-+		if (target) {
-+			new_dentry->d_inode->i_nlink--;
-+			mark_inode_dirty(new_dentry->d_inode);
-+		}
-+
-+		return 0;
-+	} else {
-+		return -ENOTEMPTY;
-+	}
-+}
-+
-+static int yaffs_setattr(struct dentry *dentry, struct iattr *attr)
-+{
-+	struct inode *inode = dentry->d_inode;
-+	int error;
-+	yaffs_Device *dev;
-+
-+	T(YAFFS_TRACE_OS,
-+		("yaffs_setattr of object %d\n",
-+		yaffs_InodeToObject(inode)->objectId));
-+
-+	error = inode_change_ok(inode, attr);
-+	if (error == 0) {
-+		dev = yaffs_InodeToObject(inode)->myDev;
-+		yaffs_GrossLock(dev);
-+		if (yaffs_SetAttributes(yaffs_InodeToObject(inode), attr) ==
-+				YAFFS_OK) {
-+			error = 0;
-+		} else {
-+			error = -EPERM;
-+		}
-+		yaffs_GrossUnlock(dev);
-+		if (!error)
-+			error = inode_setattr(inode, attr);
-+	}
-+	return error;
-+}
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
-+static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf)
-+{
-+	yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev;
-+	struct super_block *sb = dentry->d_sb;
-+#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
-+static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf)
-+{
-+	yaffs_Device *dev = yaffs_SuperToDevice(sb);
-+#else
-+static int yaffs_statfs(struct super_block *sb, struct statfs *buf)
-+{
-+	yaffs_Device *dev = yaffs_SuperToDevice(sb);
-+#endif
-+
-+	T(YAFFS_TRACE_OS, ("yaffs_statfs\n"));
-+
-+	yaffs_GrossLock(dev);
-+
-+	buf->f_type = YAFFS_MAGIC;
-+	buf->f_bsize = sb->s_blocksize;
-+	buf->f_namelen = 255;
-+
-+	if (dev->nDataBytesPerChunk & (dev->nDataBytesPerChunk - 1)) {
-+		/* Do this if chunk size is not a power of 2 */
-+
-+		uint64_t bytesInDev;
-+		uint64_t bytesFree;
-+
-+		bytesInDev = ((uint64_t)((dev->endBlock - dev->startBlock + 1))) *
-+			((uint64_t)(dev->nChunksPerBlock * dev->nDataBytesPerChunk));
-+
-+		do_div(bytesInDev, sb->s_blocksize); /* bytesInDev becomes the number of blocks */
-+		buf->f_blocks = bytesInDev;
-+
-+		bytesFree  = ((uint64_t)(yaffs_GetNumberOfFreeChunks(dev))) *
-+			((uint64_t)(dev->nDataBytesPerChunk));
-+
-+		do_div(bytesFree, sb->s_blocksize);
-+
-+		buf->f_bfree = bytesFree;
-+
-+	} else if (sb->s_blocksize > dev->nDataBytesPerChunk) {
-+
-+		buf->f_blocks =
-+			(dev->endBlock - dev->startBlock + 1) *
-+			dev->nChunksPerBlock /
-+			(sb->s_blocksize / dev->nDataBytesPerChunk);
-+		buf->f_bfree =
-+			yaffs_GetNumberOfFreeChunks(dev) /
-+			(sb->s_blocksize / dev->nDataBytesPerChunk);
-+	} else {
-+		buf->f_blocks =
-+			(dev->endBlock - dev->startBlock + 1) *
-+			dev->nChunksPerBlock *
-+			(dev->nDataBytesPerChunk / sb->s_blocksize);
-+
-+		buf->f_bfree =
-+			yaffs_GetNumberOfFreeChunks(dev) *
-+			(dev->nDataBytesPerChunk / sb->s_blocksize);
-+	}
-+
-+	buf->f_files = 0;
-+	buf->f_ffree = 0;
-+	buf->f_bavail = buf->f_bfree;
-+
-+	yaffs_GrossUnlock(dev);
-+	return 0;
-+}
-+
-+
-+static int yaffs_do_sync_fs(struct super_block *sb)
-+{
-+
-+	yaffs_Device *dev = yaffs_SuperToDevice(sb);
-+	T(YAFFS_TRACE_OS, ("yaffs_do_sync_fs\n"));
-+
-+	if (sb->s_dirt) {
-+		yaffs_GrossLock(dev);
-+
-+		if (dev) {
-+			yaffs_FlushEntireDeviceCache(dev);
-+			yaffs_CheckpointSave(dev);
-+		}
-+
-+		yaffs_GrossUnlock(dev);
-+
-+		sb->s_dirt = 0;
-+	}
-+	return 0;
-+}
-+
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
-+static void yaffs_write_super(struct super_block *sb)
-+#else
-+static int yaffs_write_super(struct super_block *sb)
-+#endif
-+{
-+
-+	T(YAFFS_TRACE_OS, ("yaffs_write_super\n"));
-+	if (yaffs_auto_checkpoint >= 2)
-+		yaffs_do_sync_fs(sb);
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 18))
-+	return 0;
-+#endif
-+}
-+
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
-+static int yaffs_sync_fs(struct super_block *sb, int wait)
-+#else
-+static int yaffs_sync_fs(struct super_block *sb)
-+#endif
-+{
-+	T(YAFFS_TRACE_OS, ("yaffs_sync_fs\n"));
-+
-+	if (yaffs_auto_checkpoint >= 1)
-+		yaffs_do_sync_fs(sb);
-+
-+	return 0;
-+}
-+
-+#ifdef YAFFS_USE_OWN_IGET
-+
-+static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino)
-+{
-+	struct inode *inode;
-+	yaffs_Object *obj;
-+	yaffs_Device *dev = yaffs_SuperToDevice(sb);
-+
-+	T(YAFFS_TRACE_OS,
-+		("yaffs_iget for %lu\n", ino));
-+
-+	inode = iget_locked(sb, ino);
-+	if (!inode)
-+		return ERR_PTR(-ENOMEM);
-+	if (!(inode->i_state & I_NEW))
-+		return inode;
-+
-+	/* NB This is called as a side effect of other functions, but
-+	 * we had to release the lock to prevent deadlocks, so
-+	 * need to lock again.
-+	 */
-+
-+	yaffs_GrossLock(dev);
-+
-+	obj = yaffs_FindObjectByNumber(dev, inode->i_ino);
-+
-+	yaffs_FillInodeFromObject(inode, obj);
-+
-+	yaffs_GrossUnlock(dev);
-+
-+	unlock_new_inode(inode);
-+	return inode;
-+}
-+
-+#else
-+
-+static void yaffs_read_inode(struct inode *inode)
-+{
-+	/* NB This is called as a side effect of other functions, but
-+	 * we had to release the lock to prevent deadlocks, so
-+	 * need to lock again.
-+	 */
-+
-+	yaffs_Object *obj;
-+	yaffs_Device *dev = yaffs_SuperToDevice(inode->i_sb);
-+
-+	T(YAFFS_TRACE_OS,
-+		("yaffs_read_inode for %d\n", (int)inode->i_ino));
-+
-+	yaffs_GrossLock(dev);
-+
-+	obj = yaffs_FindObjectByNumber(dev, inode->i_ino);
-+
-+	yaffs_FillInodeFromObject(inode, obj);
-+
-+	yaffs_GrossUnlock(dev);
-+}
-+
-+#endif
-+
-+static YLIST_HEAD(yaffs_dev_list);
-+
-+#if 0 /* not used */
-+static int yaffs_remount_fs(struct super_block *sb, int *flags, char *data)
-+{
-+	yaffs_Device    *dev = yaffs_SuperToDevice(sb);
-+
-+	if (*flags & MS_RDONLY) {
-+		struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice;
-+
-+		T(YAFFS_TRACE_OS,
-+			("yaffs_remount_fs: %s: RO\n", dev->name));
-+
-+		yaffs_GrossLock(dev);
-+
-+		yaffs_FlushEntireDeviceCache(dev);
-+
-+		yaffs_CheckpointSave(dev);
-+
-+		if (mtd->sync)
-+			mtd->sync(mtd);
-+
-+		yaffs_GrossUnlock(dev);
-+	} else {
-+		T(YAFFS_TRACE_OS,
-+			("yaffs_remount_fs: %s: RW\n", dev->name));
-+	}
-+
-+	return 0;
-+}
-+#endif
-+
-+static void yaffs_put_super(struct super_block *sb)
-+{
-+	yaffs_Device *dev = yaffs_SuperToDevice(sb);
-+
-+	T(YAFFS_TRACE_OS, ("yaffs_put_super\n"));
-+
-+	yaffs_GrossLock(dev);
-+
-+	yaffs_FlushEntireDeviceCache(dev);
-+
-+	yaffs_CheckpointSave(dev);
-+
-+	if (dev->putSuperFunc)
-+		dev->putSuperFunc(sb);
-+
-+	yaffs_Deinitialise(dev);
-+
-+	yaffs_GrossUnlock(dev);
-+
-+	/* we assume this is protected by lock_kernel() in mount/umount */
-+	ylist_del(&dev->devList);
-+
-+	if (dev->spareBuffer) {
-+		YFREE(dev->spareBuffer);
-+		dev->spareBuffer = NULL;
-+	}
-+
-+	kfree(dev);
-+}
-+
-+
-+static void yaffs_MTDPutSuper(struct super_block *sb)
-+{
-+	struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice;
-+
-+	if (mtd->sync)
-+		mtd->sync(mtd);
-+
-+	put_mtd_device(mtd);
-+}
-+
-+
-+static void yaffs_MarkSuperBlockDirty(void *vsb)
-+{
-+	struct super_block *sb = (struct super_block *)vsb;
-+
-+	T(YAFFS_TRACE_OS, ("yaffs_MarkSuperBlockDirty() sb = %p\n", sb));
-+	if (sb)
-+		sb->s_dirt = 1;
-+}
-+
-+typedef struct {
-+	int inband_tags;
-+	int skip_checkpoint_read;
-+	int skip_checkpoint_write;
-+	int no_cache;
-+} yaffs_options;
-+
-+#define MAX_OPT_LEN 20
-+static int yaffs_parse_options(yaffs_options *options, const char *options_str)
-+{
-+	char cur_opt[MAX_OPT_LEN + 1];
-+	int p;
-+	int error = 0;
-+
-+	/* Parse through the options which is a comma seperated list */
-+
-+	while (options_str && *options_str && !error) {
-+		memset(cur_opt, 0, MAX_OPT_LEN + 1);
-+		p = 0;
-+
-+		while (*options_str && *options_str != ',') {
-+			if (p < MAX_OPT_LEN) {
-+				cur_opt[p] = *options_str;
-+				p++;
-+			}
-+			options_str++;
-+		}
-+
-+		if (!strcmp(cur_opt, "inband-tags"))
-+			options->inband_tags = 1;
-+		else if (!strcmp(cur_opt, "no-cache"))
-+			options->no_cache = 1;
-+		else if (!strcmp(cur_opt, "no-checkpoint-read"))
-+			options->skip_checkpoint_read = 1;
-+		else if (!strcmp(cur_opt, "no-checkpoint-write"))
-+			options->skip_checkpoint_write = 1;
-+		else if (!strcmp(cur_opt, "no-checkpoint")) {
-+			options->skip_checkpoint_read = 1;
-+			options->skip_checkpoint_write = 1;
-+		} else {
-+			printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n",
-+					cur_opt);
-+			error = 1;
-+		}
-+	}
-+
-+	return error;
-+}
-+
-+static struct super_block *yaffs_internal_read_super(int yaffsVersion,
-+						struct super_block *sb,
-+						void *data, int silent)
-+{
-+	int nBlocks;
-+	struct inode *inode = NULL;
-+	struct dentry *root;
-+	yaffs_Device *dev = 0;
-+	char devname_buf[BDEVNAME_SIZE + 1];
-+	struct mtd_info *mtd;
-+	int err;
-+	char *data_str = (char *)data;
-+
-+	yaffs_options options;
-+
-+	sb->s_magic = YAFFS_MAGIC;
-+	sb->s_op = &yaffs_super_ops;
-+	sb->s_flags |= MS_NOATIME;
-+
-+	if (!sb)
-+		printk(KERN_INFO "yaffs: sb is NULL\n");
-+	else if (!sb->s_dev)
-+		printk(KERN_INFO "yaffs: sb->s_dev is NULL\n");
-+	else if (!yaffs_devname(sb, devname_buf))
-+		printk(KERN_INFO "yaffs: devname is NULL\n");
-+	else
-+		printk(KERN_INFO "yaffs: dev is %d name is \"%s\"\n",
-+		       sb->s_dev,
-+		       yaffs_devname(sb, devname_buf));
-+
-+	if (!data_str)
-+		data_str = "";
-+
-+	printk(KERN_INFO "yaffs: passed flags \"%s\"\n", data_str);
-+
-+	memset(&options, 0, sizeof(options));
-+
-+	if (yaffs_parse_options(&options, data_str)) {
-+		/* Option parsing failed */
-+		return NULL;
-+	}
-+
-+
-+	sb->s_blocksize = PAGE_CACHE_SIZE;
-+	sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
-+	T(YAFFS_TRACE_OS, ("yaffs_read_super: Using yaffs%d\n", yaffsVersion));
-+	T(YAFFS_TRACE_OS,
-+	  ("yaffs_read_super: block size %d\n", (int)(sb->s_blocksize)));
-+
-+#ifdef CONFIG_YAFFS_DISABLE_WRITE_VERIFY
-+	T(YAFFS_TRACE_OS,
-+	  ("yaffs: Write verification disabled. All guarantees "
-+	   "null and void\n"));
-+#endif
-+
-+	T(YAFFS_TRACE_ALWAYS, ("yaffs: Attempting MTD mount on %u.%u, "
-+			       "\"%s\"\n",
-+			       MAJOR(sb->s_dev), MINOR(sb->s_dev),
-+			       yaffs_devname(sb, devname_buf)));
-+
-+	/* Check it's an mtd device..... */
-+	if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR)
-+		return NULL;	/* This isn't an mtd device */
-+
-+	/* Get the device */
-+	mtd = get_mtd_device(NULL, MINOR(sb->s_dev));
-+	if (!mtd) {
-+		T(YAFFS_TRACE_ALWAYS,
-+		  ("yaffs: MTD device #%u doesn't appear to exist\n",
-+		   MINOR(sb->s_dev)));
-+		return NULL;
-+	}
-+	/* Check it's NAND */
-+	if (mtd->type != MTD_NANDFLASH) {
-+		T(YAFFS_TRACE_ALWAYS,
-+		  ("yaffs: MTD device is not NAND it's type %d\n", mtd->type));
-+		return NULL;
-+	}
-+
-+	T(YAFFS_TRACE_OS, (" erase %p\n", mtd->erase));
-+	T(YAFFS_TRACE_OS, (" read %p\n", mtd->read));
-+	T(YAFFS_TRACE_OS, (" write %p\n", mtd->write));
-+	T(YAFFS_TRACE_OS, (" readoob %p\n", mtd->read_oob));
-+	T(YAFFS_TRACE_OS, (" writeoob %p\n", mtd->write_oob));
-+	T(YAFFS_TRACE_OS, (" block_isbad %p\n", mtd->block_isbad));
-+	T(YAFFS_TRACE_OS, (" block_markbad %p\n", mtd->block_markbad));
-+	T(YAFFS_TRACE_OS, (" %s %d\n", WRITE_SIZE_STR, WRITE_SIZE(mtd)));
-+	T(YAFFS_TRACE_OS, (" oobsize %d\n", mtd->oobsize));
-+	T(YAFFS_TRACE_OS, (" erasesize %d\n", mtd->erasesize));
-+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
-+	T(YAFFS_TRACE_OS, (" size %u\n", mtd->size));
-+#else
-+	T(YAFFS_TRACE_OS, (" size %lld\n", mtd->size));
-+#endif
-+
-+#ifdef CONFIG_YAFFS_AUTO_YAFFS2
-+
-+	if (yaffsVersion == 1 && WRITE_SIZE(mtd) >= 2048) {
-+		T(YAFFS_TRACE_ALWAYS, ("yaffs: auto selecting yaffs2\n"));
-+		yaffsVersion = 2;
-+	}
-+
-+	/* Added NCB 26/5/2006 for completeness */
-+	if (yaffsVersion == 2 && !options.inband_tags && WRITE_SIZE(mtd) == 512) {
-+		T(YAFFS_TRACE_ALWAYS, ("yaffs: auto selecting yaffs1\n"));
-+		yaffsVersion = 1;
-+	}
-+
-+#endif
-+
-+	if (yaffsVersion == 2) {
-+		/* Check for version 2 style functions */
-+		if (!mtd->erase ||
-+		    !mtd->block_isbad ||
-+		    !mtd->block_markbad ||
-+		    !mtd->read ||
-+		    !mtd->write ||
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
-+		    !mtd->read_oob || !mtd->write_oob) {
-+#else
-+		    !mtd->write_ecc ||
-+		    !mtd->read_ecc || !mtd->read_oob || !mtd->write_oob) {
-+#endif
-+			T(YAFFS_TRACE_ALWAYS,
-+			  ("yaffs: MTD device does not support required "
-+			   "functions\n"));;
-+			return NULL;
-+		}
-+
-+		if ((WRITE_SIZE(mtd) < YAFFS_MIN_YAFFS2_CHUNK_SIZE ||
-+		    mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) &&
-+		    !options.inband_tags) {
-+			T(YAFFS_TRACE_ALWAYS,
-+			  ("yaffs: MTD device does not have the "
-+			   "right page sizes\n"));
-+			return NULL;
-+		}
-+	} else {
-+		/* Check for V1 style functions */
-+		if (!mtd->erase ||
-+		    !mtd->read ||
-+		    !mtd->write ||
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
-+		    !mtd->read_oob || !mtd->write_oob) {
-+#else
-+		    !mtd->write_ecc ||
-+		    !mtd->read_ecc || !mtd->read_oob || !mtd->write_oob) {
-+#endif
-+			T(YAFFS_TRACE_ALWAYS,
-+			  ("yaffs: MTD device does not support required "
-+			   "functions\n"));;
-+			return NULL;
-+		}
-+
-+		if (WRITE_SIZE(mtd) < YAFFS_BYTES_PER_CHUNK ||
-+		    mtd->oobsize != YAFFS_BYTES_PER_SPARE) {
-+			T(YAFFS_TRACE_ALWAYS,
-+			  ("yaffs: MTD device does not support have the "
-+			   "right page sizes\n"));
-+			return NULL;
-+		}
-+	}
-+
-+	/* OK, so if we got here, we have an MTD that's NAND and looks
-+	 * like it has the right capabilities
-+	 * Set the yaffs_Device up for mtd
-+	 */
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
-+	sb->s_fs_info = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL);
-+#else
-+	sb->u.generic_sbp = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL);
-+#endif
-+	if (!dev) {
-+		/* Deep shit could not allocate device structure */
-+		T(YAFFS_TRACE_ALWAYS,
-+		  ("yaffs_read_super: Failed trying to allocate "
-+		   "yaffs_Device. \n"));
-+		return NULL;
-+	}
-+
-+	memset(dev, 0, sizeof(yaffs_Device));
-+	dev->genericDevice = mtd;
-+	dev->name = mtd->name;
-+
-+	/* Set up the memory size parameters.... */
-+
-+	nBlocks = YCALCBLOCKS(mtd->size, (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK));
-+
-+	dev->startBlock = 0;
-+	dev->endBlock = nBlocks - 1;
-+	dev->nChunksPerBlock = YAFFS_CHUNKS_PER_BLOCK;
-+	dev->totalBytesPerChunk = YAFFS_BYTES_PER_CHUNK;
-+	dev->nReservedBlocks = 5;
-+	dev->nShortOpCaches = (options.no_cache) ? 0 : 10;
-+	dev->inbandTags = options.inband_tags;
-+
-+	/* ... and the functions. */
-+	if (yaffsVersion == 2) {
-+		dev->writeChunkWithTagsToNAND =
-+		    nandmtd2_WriteChunkWithTagsToNAND;
-+		dev->readChunkWithTagsFromNAND =
-+		    nandmtd2_ReadChunkWithTagsFromNAND;
-+		dev->markNANDBlockBad = nandmtd2_MarkNANDBlockBad;
-+		dev->queryNANDBlock = nandmtd2_QueryNANDBlock;
-+		dev->spareBuffer = YMALLOC(mtd->oobsize);
-+		dev->isYaffs2 = 1;
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
-+		dev->totalBytesPerChunk = mtd->writesize;
-+		dev->nChunksPerBlock = mtd->erasesize / mtd->writesize;
-+#else
-+		dev->totalBytesPerChunk = mtd->oobblock;
-+		dev->nChunksPerBlock = mtd->erasesize / mtd->oobblock;
-+#endif
-+		nBlocks = YCALCBLOCKS(mtd->size, mtd->erasesize);
-+
-+		dev->startBlock = 0;
-+		dev->endBlock = nBlocks - 1;
-+	} else {
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
-+		/* use the MTD interface in yaffs_mtdif1.c */
-+		dev->writeChunkWithTagsToNAND =
-+			nandmtd1_WriteChunkWithTagsToNAND;
-+		dev->readChunkWithTagsFromNAND =
-+			nandmtd1_ReadChunkWithTagsFromNAND;
-+		dev->markNANDBlockBad = nandmtd1_MarkNANDBlockBad;
-+		dev->queryNANDBlock = nandmtd1_QueryNANDBlock;
-+#else
-+		dev->writeChunkToNAND = nandmtd_WriteChunkToNAND;
-+		dev->readChunkFromNAND = nandmtd_ReadChunkFromNAND;
-+#endif
-+		dev->isYaffs2 = 0;
-+	}
-+	/* ... and common functions */
-+	dev->eraseBlockInNAND = nandmtd_EraseBlockInNAND;
-+	dev->initialiseNAND = nandmtd_InitialiseNAND;
-+
-+	dev->putSuperFunc = yaffs_MTDPutSuper;
-+
-+	dev->superBlock = (void *)sb;
-+	dev->markSuperBlockDirty = yaffs_MarkSuperBlockDirty;
-+
-+
-+#ifndef CONFIG_YAFFS_DOES_ECC
-+	dev->useNANDECC = 1;
-+#endif
-+
-+#ifdef CONFIG_YAFFS_DISABLE_WIDE_TNODES
-+	dev->wideTnodesDisabled = 1;
-+#endif
-+
-+	dev->skipCheckpointRead = options.skip_checkpoint_read;
-+	dev->skipCheckpointWrite = options.skip_checkpoint_write;
-+
-+	/* we assume this is protected by lock_kernel() in mount/umount */
-+	ylist_add_tail(&dev->devList, &yaffs_dev_list);
-+
-+	init_MUTEX(&dev->grossLock);
-+
-+	yaffs_GrossLock(dev);
-+
-+	err = yaffs_GutsInitialise(dev);
-+
-+	T(YAFFS_TRACE_OS,
-+	  ("yaffs_read_super: guts initialised %s\n",
-+	   (err == YAFFS_OK) ? "OK" : "FAILED"));
-+
-+	/* Release lock before yaffs_get_inode() */
-+	yaffs_GrossUnlock(dev);
-+
-+	/* Create root inode */
-+	if (err == YAFFS_OK)
-+		inode = yaffs_get_inode(sb, S_IFDIR | 0755, 0,
-+					yaffs_Root(dev));
-+
-+	if (!inode)
-+		return NULL;
-+
-+	inode->i_op = &yaffs_dir_inode_operations;
-+	inode->i_fop = &yaffs_dir_operations;
-+
-+	T(YAFFS_TRACE_OS, ("yaffs_read_super: got root inode\n"));
-+
-+	root = d_alloc_root(inode);
-+
-+	T(YAFFS_TRACE_OS, ("yaffs_read_super: d_alloc_root done\n"));
-+
-+	if (!root) {
-+		iput(inode);
-+		return NULL;
-+	}
-+	sb->s_root = root;
-+	sb->s_dirt = !dev->isCheckpointed;
-+	T(YAFFS_TRACE_ALWAYS,
-+	  ("yaffs_read_super: isCheckpointed %d\n", dev->isCheckpointed));
-+
-+	T(YAFFS_TRACE_OS, ("yaffs_read_super: done\n"));
-+	return sb;
-+}
-+
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
-+static int yaffs_internal_read_super_mtd(struct super_block *sb, void *data,
-+					 int silent)
-+{
-+	return yaffs_internal_read_super(1, sb, data, silent) ? 0 : -EINVAL;
-+}
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
-+static int yaffs_read_super(struct file_system_type *fs,
-+			    int flags, const char *dev_name,
-+			    void *data, struct vfsmount *mnt)
-+{
-+
-+	return get_sb_bdev(fs, flags, dev_name, data,
-+			   yaffs_internal_read_super_mtd, mnt);
-+}
-+#else
-+static struct super_block *yaffs_read_super(struct file_system_type *fs,
-+					    int flags, const char *dev_name,
-+					    void *data)
-+{
-+
-+	return get_sb_bdev(fs, flags, dev_name, data,
-+			   yaffs_internal_read_super_mtd);
-+}
-+#endif
-+
-+static struct file_system_type yaffs_fs_type = {
-+	.owner = THIS_MODULE,
-+	.name = "yaffs",
-+	.get_sb = yaffs_read_super,
-+	.kill_sb = kill_block_super,
-+	.fs_flags = FS_REQUIRES_DEV,
-+};
-+#else
-+static struct super_block *yaffs_read_super(struct super_block *sb, void *data,
-+					    int silent)
-+{
-+	return yaffs_internal_read_super(1, sb, data, silent);
-+}
-+
-+static DECLARE_FSTYPE(yaffs_fs_type, "yaffs", yaffs_read_super,
-+		      FS_REQUIRES_DEV);
-+#endif
-+
-+
-+#ifdef CONFIG_YAFFS_YAFFS2
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
-+static int yaffs2_internal_read_super_mtd(struct super_block *sb, void *data,
-+					  int silent)
-+{
-+	return yaffs_internal_read_super(2, sb, data, silent) ? 0 : -EINVAL;
-+}
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
-+static int yaffs2_read_super(struct file_system_type *fs,
-+			int flags, const char *dev_name, void *data,
-+			struct vfsmount *mnt)
-+{
-+	return get_sb_bdev(fs, flags, dev_name, data,
-+			yaffs2_internal_read_super_mtd, mnt);
-+}
-+#else
-+static struct super_block *yaffs2_read_super(struct file_system_type *fs,
-+					     int flags, const char *dev_name,
-+					     void *data)
-+{
-+
-+	return get_sb_bdev(fs, flags, dev_name, data,
-+			   yaffs2_internal_read_super_mtd);
-+}
-+#endif
-+
-+static struct file_system_type yaffs2_fs_type = {
-+	.owner = THIS_MODULE,
-+	.name = "yaffs2",
-+	.get_sb = yaffs2_read_super,
-+	.kill_sb = kill_block_super,
-+	.fs_flags = FS_REQUIRES_DEV,
-+};
-+#else
-+static struct super_block *yaffs2_read_super(struct super_block *sb,
-+					     void *data, int silent)
-+{
-+	return yaffs_internal_read_super(2, sb, data, silent);
-+}
-+
-+static DECLARE_FSTYPE(yaffs2_fs_type, "yaffs2", yaffs2_read_super,
-+		      FS_REQUIRES_DEV);
-+#endif
-+
-+#endif				/* CONFIG_YAFFS_YAFFS2 */
-+
-+static struct proc_dir_entry *my_proc_entry;
-+
-+static char *yaffs_dump_dev(char *buf, yaffs_Device * dev)
-+{
-+	buf += sprintf(buf, "startBlock......... %d\n", dev->startBlock);
-+	buf += sprintf(buf, "endBlock........... %d\n", dev->endBlock);
-+	buf += sprintf(buf, "totalBytesPerChunk. %d\n", dev->totalBytesPerChunk);
-+	buf += sprintf(buf, "nDataBytesPerChunk. %d\n", dev->nDataBytesPerChunk);
-+	buf += sprintf(buf, "chunkGroupBits..... %d\n", dev->chunkGroupBits);
-+	buf += sprintf(buf, "chunkGroupSize..... %d\n", dev->chunkGroupSize);
-+	buf += sprintf(buf, "nErasedBlocks...... %d\n", dev->nErasedBlocks);
-+	buf += sprintf(buf, "nReservedBlocks.... %d\n", dev->nReservedBlocks);
-+	buf += sprintf(buf, "blocksInCheckpoint. %d\n", dev->blocksInCheckpoint);
-+	buf += sprintf(buf, "nTnodesCreated..... %d\n", dev->nTnodesCreated);
-+	buf += sprintf(buf, "nFreeTnodes........ %d\n", dev->nFreeTnodes);
-+	buf += sprintf(buf, "nObjectsCreated.... %d\n", dev->nObjectsCreated);
-+	buf += sprintf(buf, "nFreeObjects....... %d\n", dev->nFreeObjects);
-+	buf += sprintf(buf, "nFreeChunks........ %d\n", dev->nFreeChunks);
-+	buf += sprintf(buf, "nPageWrites........ %d\n", dev->nPageWrites);
-+	buf += sprintf(buf, "nPageReads......... %d\n", dev->nPageReads);
-+	buf += sprintf(buf, "nBlockErasures..... %d\n", dev->nBlockErasures);
-+	buf += sprintf(buf, "nGCCopies.......... %d\n", dev->nGCCopies);
-+	buf += sprintf(buf, "garbageCollections. %d\n", dev->garbageCollections);
-+	buf += sprintf(buf, "passiveGCs......... %d\n",
-+		    dev->passiveGarbageCollections);
-+	buf += sprintf(buf, "nRetriedWrites..... %d\n", dev->nRetriedWrites);
-+	buf += sprintf(buf, "nShortOpCaches..... %d\n", dev->nShortOpCaches);
-+	buf += sprintf(buf, "nRetireBlocks...... %d\n", dev->nRetiredBlocks);
-+	buf += sprintf(buf, "eccFixed........... %d\n", dev->eccFixed);
-+	buf += sprintf(buf, "eccUnfixed......... %d\n", dev->eccUnfixed);
-+	buf += sprintf(buf, "tagsEccFixed....... %d\n", dev->tagsEccFixed);
-+	buf += sprintf(buf, "tagsEccUnfixed..... %d\n", dev->tagsEccUnfixed);
-+	buf += sprintf(buf, "cacheHits.......... %d\n", dev->cacheHits);
-+	buf += sprintf(buf, "nDeletedFiles...... %d\n", dev->nDeletedFiles);
-+	buf += sprintf(buf, "nUnlinkedFiles..... %d\n", dev->nUnlinkedFiles);
-+	buf +=
-+	    sprintf(buf, "nBackgroudDeletions %d\n", dev->nBackgroundDeletions);
-+	buf += sprintf(buf, "useNANDECC......... %d\n", dev->useNANDECC);
-+	buf += sprintf(buf, "isYaffs2........... %d\n", dev->isYaffs2);
-+	buf += sprintf(buf, "inbandTags......... %d\n", dev->inbandTags);
-+
-+	return buf;
-+}
-+
-+static int yaffs_proc_read(char *page,
-+			   char **start,
-+			   off_t offset, int count, int *eof, void *data)
-+{
-+	struct ylist_head *item;
-+	char *buf = page;
-+	int step = offset;
-+	int n = 0;
-+
-+	/* Get proc_file_read() to step 'offset' by one on each sucessive call.
-+	 * We use 'offset' (*ppos) to indicate where we are in devList.
-+	 * This also assumes the user has posted a read buffer large
-+	 * enough to hold the complete output; but that's life in /proc.
-+	 */
-+
-+	*(int *)start = 1;
-+
-+	/* Print header first */
-+	if (step == 0) {
-+		buf += sprintf(buf, "YAFFS built:" __DATE__ " " __TIME__
-+			       "\n%s\n%s\n", yaffs_fs_c_version,
-+			       yaffs_guts_c_version);
-+	}
-+
-+	/* hold lock_kernel while traversing yaffs_dev_list */
-+	lock_kernel();
-+
-+	/* Locate and print the Nth entry.  Order N-squared but N is small. */
-+	ylist_for_each(item, &yaffs_dev_list) {
-+		yaffs_Device *dev = ylist_entry(item, yaffs_Device, devList);
-+		if (n < step) {
-+			n++;
-+			continue;
-+		}
-+		buf += sprintf(buf, "\nDevice %d \"%s\"\n", n, dev->name);
-+		buf = yaffs_dump_dev(buf, dev);
-+		break;
-+	}
-+	unlock_kernel();
-+
-+	return buf - page < count ? buf - page : count;
-+}
-+
-+/**
-+ * Set the verbosity of the warnings and error messages.
-+ *
-+ * Note that the names can only be a..z or _ with the current code.
-+ */
-+
-+static struct {
-+	char *mask_name;
-+	unsigned mask_bitfield;
-+} mask_flags[] = {
-+	{"allocate", YAFFS_TRACE_ALLOCATE},
-+	{"always", YAFFS_TRACE_ALWAYS},
-+	{"bad_blocks", YAFFS_TRACE_BAD_BLOCKS},
-+	{"buffers", YAFFS_TRACE_BUFFERS},
-+	{"bug", YAFFS_TRACE_BUG},
-+	{"checkpt", YAFFS_TRACE_CHECKPOINT},
-+	{"deletion", YAFFS_TRACE_DELETION},
-+	{"erase", YAFFS_TRACE_ERASE},
-+	{"error", YAFFS_TRACE_ERROR},
-+	{"gc_detail", YAFFS_TRACE_GC_DETAIL},
-+	{"gc", YAFFS_TRACE_GC},
-+	{"mtd", YAFFS_TRACE_MTD},
-+	{"nandaccess", YAFFS_TRACE_NANDACCESS},
-+	{"os", YAFFS_TRACE_OS},
-+	{"scan_debug", YAFFS_TRACE_SCAN_DEBUG},
-+	{"scan", YAFFS_TRACE_SCAN},
-+	{"tracing", YAFFS_TRACE_TRACING},
-+
-+	{"verify", YAFFS_TRACE_VERIFY},
-+	{"verify_nand", YAFFS_TRACE_VERIFY_NAND},
-+	{"verify_full", YAFFS_TRACE_VERIFY_FULL},
-+	{"verify_all", YAFFS_TRACE_VERIFY_ALL},
-+
-+	{"write", YAFFS_TRACE_WRITE},
-+	{"all", 0xffffffff},
-+	{"none", 0},
-+	{NULL, 0},
-+};
-+
-+#define MAX_MASK_NAME_LENGTH 40
-+static int yaffs_proc_write(struct file *file, const char *buf,
-+					 unsigned long count, void *data)
-+{
-+	unsigned rg = 0, mask_bitfield;
-+	char *end;
-+	char *mask_name;
-+	const char *x;
-+	char substring[MAX_MASK_NAME_LENGTH + 1];
-+	int i;
-+	int done = 0;
-+	int add, len = 0;
-+	int pos = 0;
-+
-+	rg = yaffs_traceMask;
-+
-+	while (!done && (pos < count)) {
-+		done = 1;
-+		while ((pos < count) && isspace(buf[pos]))
-+			pos++;
-+
-+		switch (buf[pos]) {
-+		case '+':
-+		case '-':
-+		case '=':
-+			add = buf[pos];
-+			pos++;
-+			break;
-+
-+		default:
-+			add = ' ';
-+			break;
-+		}
-+		mask_name = NULL;
-+
-+		mask_bitfield = simple_strtoul(buf + pos, &end, 0);
-+
-+		if (end > buf + pos) {
-+			mask_name = "numeral";
-+			len = end - (buf + pos);
-+			pos += len;
-+			done = 0;
-+		} else {
-+			for (x = buf + pos, i = 0;
-+			    (*x == '_' || (*x >= 'a' && *x <= 'z')) &&
-+			    i < MAX_MASK_NAME_LENGTH; x++, i++, pos++)
-+				substring[i] = *x;
-+			substring[i] = '\0';
-+
-+			for (i = 0; mask_flags[i].mask_name != NULL; i++) {
-+				if (strcmp(substring, mask_flags[i].mask_name) == 0) {
-+					mask_name = mask_flags[i].mask_name;
-+					mask_bitfield = mask_flags[i].mask_bitfield;
-+					done = 0;
-+					break;
-+				}
-+			}
-+		}
-+
-+		if (mask_name != NULL) {
-+			done = 0;
-+			switch (add) {
-+			case '-':
-+				rg &= ~mask_bitfield;
-+				break;
-+			case '+':
-+				rg |= mask_bitfield;
-+				break;
-+			case '=':
-+				rg = mask_bitfield;
-+				break;
-+			default:
-+				rg |= mask_bitfield;
-+				break;
-+			}
-+		}
-+	}
-+
-+	yaffs_traceMask = rg | YAFFS_TRACE_ALWAYS;
-+
-+	printk(KERN_DEBUG "new trace = 0x%08X\n", yaffs_traceMask);
-+
-+	if (rg & YAFFS_TRACE_ALWAYS) {
-+		for (i = 0; mask_flags[i].mask_name != NULL; i++) {
-+			char flag;
-+			flag = ((rg & mask_flags[i].mask_bitfield) == mask_flags[i].mask_bitfield) ? '+' : '-';
-+			printk(KERN_DEBUG "%c%s\n", flag, mask_flags[i].mask_name);
-+		}
-+	}
-+
-+	return count;
-+}
-+
-+/* Stuff to handle installation of file systems */
-+struct file_system_to_install {
-+	struct file_system_type *fst;
-+	int installed;
-+};
-+
-+static struct file_system_to_install fs_to_install[] = {
-+	{&yaffs_fs_type, 0},
-+	{&yaffs2_fs_type, 0},
-+	{NULL, 0}
-+};
-+
-+static int __init init_yaffs_fs(void)
-+{
-+	int error = 0;
-+	struct file_system_to_install *fsinst;
-+
-+	T(YAFFS_TRACE_ALWAYS,
-+	  ("yaffs " __DATE__ " " __TIME__ " Installing. \n"));
-+
-+	/* Install the proc_fs entry */
-+	my_proc_entry = create_proc_entry("yaffs",
-+					       S_IRUGO | S_IFREG,
-+					       YPROC_ROOT);
-+
-+	if (my_proc_entry) {
-+		my_proc_entry->write_proc = yaffs_proc_write;
-+		my_proc_entry->read_proc = yaffs_proc_read;
-+		my_proc_entry->data = NULL;
-+	} else
-+		return -ENOMEM;
-+
-+	/* Now add the file system entries */
-+
-+	fsinst = fs_to_install;
-+
-+	while (fsinst->fst && !error) {
-+		error = register_filesystem(fsinst->fst);
-+		if (!error)
-+			fsinst->installed = 1;
-+		fsinst++;
-+	}
-+
-+	/* Any errors? uninstall  */
-+	if (error) {
-+		fsinst = fs_to_install;
-+
-+		while (fsinst->fst) {
-+			if (fsinst->installed) {
-+				unregister_filesystem(fsinst->fst);
-+				fsinst->installed = 0;
-+			}
-+			fsinst++;
-+		}
-+	}
-+
-+	return error;
-+}
-+
-+static void __exit exit_yaffs_fs(void)
-+{
-+
-+	struct file_system_to_install *fsinst;
-+
-+	T(YAFFS_TRACE_ALWAYS, ("yaffs " __DATE__ " " __TIME__
-+			       " removing. \n"));
-+
-+	remove_proc_entry("yaffs", YPROC_ROOT);
-+
-+	fsinst = fs_to_install;
-+
-+	while (fsinst->fst) {
-+		if (fsinst->installed) {
-+			unregister_filesystem(fsinst->fst);
-+			fsinst->installed = 0;
-+		}
-+		fsinst++;
-+	}
-+}
-+
-+module_init(init_yaffs_fs)
-+module_exit(exit_yaffs_fs)
-+
-+MODULE_DESCRIPTION("YAFFS2 - a NAND specific flash file system");
-+MODULE_AUTHOR("Charles Manning, Aleph One Ltd., 2002-2006");
-+MODULE_LICENSE("GPL");
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_getblockinfo.h linux-2.6.30/fs/yaffs2/yaffs_getblockinfo.h
---- linux-2.6.30.orig/fs/yaffs2/yaffs_getblockinfo.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_getblockinfo.h	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,34 @@
-+/*
-+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU Lesser General Public License version 2.1 as
-+ * published by the Free Software Foundation.
-+ *
-+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
-+ */
-+
-+#ifndef __YAFFS_GETBLOCKINFO_H__
-+#define __YAFFS_GETBLOCKINFO_H__
-+
-+#include "yaffs_guts.h"
-+
-+/* Function to manipulate block info */
-+static Y_INLINE yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blk)
-+{
-+	if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) {
-+		T(YAFFS_TRACE_ERROR,
-+		  (TSTR
-+		   ("**>> yaffs: getBlockInfo block %d is not valid" TENDSTR),
-+		   blk));
-+		YBUG();
-+	}
-+	return &dev->blockInfo[blk - dev->internalStartBlock];
-+}
-+
-+#endif
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_guts.c linux-2.6.30/fs/yaffs2/yaffs_guts.c
---- linux-2.6.30.orig/fs/yaffs2/yaffs_guts.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_guts.c	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,7552 @@
-+/*
-+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+const char *yaffs_guts_c_version =
-+    "$Id: yaffs_guts.c,v 1.82 2009-03-09 04:24:17 charles Exp $";
-+
-+#include "yportenv.h"
-+
-+#include "yaffsinterface.h"
-+#include "yaffs_guts.h"
-+#include "yaffs_tagsvalidity.h"
-+#include "yaffs_getblockinfo.h"
-+
-+#include "yaffs_tagscompat.h"
-+#ifndef CONFIG_YAFFS_USE_OWN_SORT
-+#include "yaffs_qsort.h"
-+#endif
-+#include "yaffs_nand.h"
-+
-+#include "yaffs_checkptrw.h"
-+
-+#include "yaffs_nand.h"
-+#include "yaffs_packedtags2.h"
-+
-+
-+#define YAFFS_PASSIVE_GC_CHUNKS 2
-+
-+#include "yaffs_ecc.h"
-+
-+
-+/* Robustification (if it ever comes about...) */
-+static void yaffs_RetireBlock(yaffs_Device *dev, int blockInNAND);
-+static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND,
-+		int erasedOk);
-+static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND,
-+				const __u8 *data,
-+				const yaffs_ExtendedTags *tags);
-+static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND,
-+				const yaffs_ExtendedTags *tags);
-+
-+/* Other local prototypes */
-+static int yaffs_UnlinkObject(yaffs_Object *obj);
-+static int yaffs_ObjectHasCachedWriteData(yaffs_Object *obj);
-+
-+static void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList);
-+
-+static int yaffs_WriteNewChunkWithTagsToNAND(yaffs_Device *dev,
-+					const __u8 *buffer,
-+					yaffs_ExtendedTags *tags,
-+					int useReserve);
-+static int yaffs_PutChunkIntoFile(yaffs_Object *in, int chunkInInode,
-+				int chunkInNAND, int inScan);
-+
-+static yaffs_Object *yaffs_CreateNewObject(yaffs_Device *dev, int number,
-+					yaffs_ObjectType type);
-+static void yaffs_AddObjectToDirectory(yaffs_Object *directory,
-+				yaffs_Object *obj);
-+static int yaffs_UpdateObjectHeader(yaffs_Object *in, const YCHAR *name,
-+				int force, int isShrink, int shadows);
-+static void yaffs_RemoveObjectFromDirectory(yaffs_Object *obj);
-+static int yaffs_CheckStructures(void);
-+static int yaffs_DeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, __u32 level,
-+			int chunkOffset, int *limit);
-+static int yaffs_DoGenericObjectDeletion(yaffs_Object *in);
-+
-+static yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device *dev, int blockNo);
-+
-+
-+static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev,
-+				int chunkInNAND);
-+
-+static int yaffs_UnlinkWorker(yaffs_Object *obj);
-+
-+static int yaffs_TagsMatch(const yaffs_ExtendedTags *tags, int objectId,
-+			int chunkInObject);
-+
-+static int yaffs_AllocateChunk(yaffs_Device *dev, int useReserve,
-+				yaffs_BlockInfo **blockUsedPtr);
-+
-+static void yaffs_VerifyFreeChunks(yaffs_Device *dev);
-+
-+static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in);
-+
-+static void yaffs_VerifyDirectory(yaffs_Object *directory);
-+#ifdef YAFFS_PARANOID
-+static int yaffs_CheckFileSanity(yaffs_Object *in);
-+#else
-+#define yaffs_CheckFileSanity(in)
-+#endif
-+
-+static void yaffs_InvalidateWholeChunkCache(yaffs_Object *in);
-+static void yaffs_InvalidateChunkCache(yaffs_Object *object, int chunkId);
-+
-+static void yaffs_InvalidateCheckpoint(yaffs_Device *dev);
-+
-+static int yaffs_FindChunkInFile(yaffs_Object *in, int chunkInInode,
-+				yaffs_ExtendedTags *tags);
-+
-+static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn,
-+		unsigned pos);
-+static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device *dev,
-+					yaffs_FileStructure *fStruct,
-+					__u32 chunkId);
-+
-+
-+/* Function to calculate chunk and offset */
-+
-+static void yaffs_AddrToChunk(yaffs_Device *dev, loff_t addr, int *chunkOut,
-+		__u32 *offsetOut)
-+{
-+	int chunk;
-+	__u32 offset;
-+
-+	chunk  = (__u32)(addr >> dev->chunkShift);
-+
-+	if (dev->chunkDiv == 1) {
-+		/* easy power of 2 case */
-+		offset = (__u32)(addr & dev->chunkMask);
-+	} else {
-+		/* Non power-of-2 case */
-+
-+		loff_t chunkBase;
-+
-+		chunk /= dev->chunkDiv;
-+
-+		chunkBase = ((loff_t)chunk) * dev->nDataBytesPerChunk;
-+		offset = (__u32)(addr - chunkBase);
-+	}
-+
-+	*chunkOut = chunk;
-+	*offsetOut = offset;
-+}
-+
-+/* Function to return the number of shifts for a power of 2 greater than or
-+ * equal to the given number
-+ * Note we don't try to cater for all possible numbers and this does not have to
-+ * be hellishly efficient.
-+ */
-+
-+static __u32 ShiftsGE(__u32 x)
-+{
-+	int extraBits;
-+	int nShifts;
-+
-+	nShifts = extraBits = 0;
-+
-+	while (x > 1) {
-+		if (x & 1)
-+			extraBits++;
-+		x >>= 1;
-+		nShifts++;
-+	}
-+
-+	if (extraBits)
-+		nShifts++;
-+
-+	return nShifts;
-+}
-+
-+/* Function to return the number of shifts to get a 1 in bit 0
-+ */
-+
-+static __u32 Shifts(__u32 x)
-+{
-+	int nShifts;
-+
-+	nShifts =  0;
-+
-+	if (!x)
-+		return 0;
-+
-+	while (!(x&1)) {
-+		x >>= 1;
-+		nShifts++;
-+	}
-+
-+	return nShifts;
-+}
-+
-+
-+
-+/*
-+ * Temporary buffer manipulations.
-+ */
-+
-+static int yaffs_InitialiseTempBuffers(yaffs_Device *dev)
-+{
-+	int i;
-+	__u8 *buf = (__u8 *)1;
-+
-+	memset(dev->tempBuffer, 0, sizeof(dev->tempBuffer));
-+
-+	for (i = 0; buf && i < YAFFS_N_TEMP_BUFFERS; i++) {
-+		dev->tempBuffer[i].line = 0;	/* not in use */
-+		dev->tempBuffer[i].buffer = buf =
-+		    YMALLOC_DMA(dev->totalBytesPerChunk);
-+	}
-+
-+	return buf ? YAFFS_OK : YAFFS_FAIL;
-+}
-+
-+__u8 *yaffs_GetTempBuffer(yaffs_Device *dev, int lineNo)
-+{
-+	int i, j;
-+
-+	dev->tempInUse++;
-+	if (dev->tempInUse > dev->maxTemp)
-+		dev->maxTemp = dev->tempInUse;
-+
-+	for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) {
-+		if (dev->tempBuffer[i].line == 0) {
-+			dev->tempBuffer[i].line = lineNo;
-+			if ((i + 1) > dev->maxTemp) {
-+				dev->maxTemp = i + 1;
-+				for (j = 0; j <= i; j++)
-+					dev->tempBuffer[j].maxLine =
-+					    dev->tempBuffer[j].line;
-+			}
-+
-+			return dev->tempBuffer[i].buffer;
-+		}
-+	}
-+
-+	T(YAFFS_TRACE_BUFFERS,
-+	  (TSTR("Out of temp buffers at line %d, other held by lines:"),
-+	   lineNo));
-+	for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++)
-+		T(YAFFS_TRACE_BUFFERS, (TSTR(" %d "), dev->tempBuffer[i].line));
-+
-+	T(YAFFS_TRACE_BUFFERS, (TSTR(" " TENDSTR)));
-+
-+	/*
-+	 * If we got here then we have to allocate an unmanaged one
-+	 * This is not good.
-+	 */
-+
-+	dev->unmanagedTempAllocations++;
-+	return YMALLOC(dev->nDataBytesPerChunk);
-+
-+}
-+
-+void yaffs_ReleaseTempBuffer(yaffs_Device *dev, __u8 *buffer,
-+				    int lineNo)
-+{
-+	int i;
-+
-+	dev->tempInUse--;
-+
-+	for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) {
-+		if (dev->tempBuffer[i].buffer == buffer) {
-+			dev->tempBuffer[i].line = 0;
-+			return;
-+		}
-+	}
-+
-+	if (buffer) {
-+		/* assume it is an unmanaged one. */
-+		T(YAFFS_TRACE_BUFFERS,
-+		  (TSTR("Releasing unmanaged temp buffer in line %d" TENDSTR),
-+		   lineNo));
-+		YFREE(buffer);
-+		dev->unmanagedTempDeallocations++;
-+	}
-+
-+}
-+
-+/*
-+ * Determine if we have a managed buffer.
-+ */
-+int yaffs_IsManagedTempBuffer(yaffs_Device *dev, const __u8 *buffer)
-+{
-+	int i;
-+
-+	for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) {
-+		if (dev->tempBuffer[i].buffer == buffer)
-+			return 1;
-+	}
-+
-+	for (i = 0; i < dev->nShortOpCaches; i++) {
-+		if (dev->srCache[i].data == buffer)
-+			return 1;
-+	}
-+
-+	if (buffer == dev->checkpointBuffer)
-+		return 1;
-+
-+	T(YAFFS_TRACE_ALWAYS,
-+		(TSTR("yaffs: unmaged buffer detected.\n" TENDSTR)));
-+	return 0;
-+}
-+
-+
-+
-+/*
-+ * Chunk bitmap manipulations
-+ */
-+
-+static Y_INLINE __u8 *yaffs_BlockBits(yaffs_Device *dev, int blk)
-+{
-+	if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) {
-+		T(YAFFS_TRACE_ERROR,
-+			(TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR),
-+			blk));
-+		YBUG();
-+	}
-+	return dev->chunkBits +
-+		(dev->chunkBitmapStride * (blk - dev->internalStartBlock));
-+}
-+
-+static Y_INLINE void yaffs_VerifyChunkBitId(yaffs_Device *dev, int blk, int chunk)
-+{
-+	if (blk < dev->internalStartBlock || blk > dev->internalEndBlock ||
-+			chunk < 0 || chunk >= dev->nChunksPerBlock) {
-+		T(YAFFS_TRACE_ERROR,
-+		(TSTR("**>> yaffs: Chunk Id (%d:%d) invalid"TENDSTR),
-+			blk, chunk));
-+		YBUG();
-+	}
-+}
-+
-+static Y_INLINE void yaffs_ClearChunkBits(yaffs_Device *dev, int blk)
-+{
-+	__u8 *blkBits = yaffs_BlockBits(dev, blk);
-+
-+	memset(blkBits, 0, dev->chunkBitmapStride);
-+}
-+
-+static Y_INLINE void yaffs_ClearChunkBit(yaffs_Device *dev, int blk, int chunk)
-+{
-+	__u8 *blkBits = yaffs_BlockBits(dev, blk);
-+
-+	yaffs_VerifyChunkBitId(dev, blk, chunk);
-+
-+	blkBits[chunk / 8] &= ~(1 << (chunk & 7));
-+}
-+
-+static Y_INLINE void yaffs_SetChunkBit(yaffs_Device *dev, int blk, int chunk)
-+{
-+	__u8 *blkBits = yaffs_BlockBits(dev, blk);
-+
-+	yaffs_VerifyChunkBitId(dev, blk, chunk);
-+
-+	blkBits[chunk / 8] |= (1 << (chunk & 7));
-+}
-+
-+static Y_INLINE int yaffs_CheckChunkBit(yaffs_Device *dev, int blk, int chunk)
-+{
-+	__u8 *blkBits = yaffs_BlockBits(dev, blk);
-+	yaffs_VerifyChunkBitId(dev, blk, chunk);
-+
-+	return (blkBits[chunk / 8] & (1 << (chunk & 7))) ? 1 : 0;
-+}
-+
-+static Y_INLINE int yaffs_StillSomeChunkBits(yaffs_Device *dev, int blk)
-+{
-+	__u8 *blkBits = yaffs_BlockBits(dev, blk);
-+	int i;
-+	for (i = 0; i < dev->chunkBitmapStride; i++) {
-+		if (*blkBits)
-+			return 1;
-+		blkBits++;
-+	}
-+	return 0;
-+}
-+
-+static int yaffs_CountChunkBits(yaffs_Device *dev, int blk)
-+{
-+	__u8 *blkBits = yaffs_BlockBits(dev, blk);
-+	int i;
-+	int n = 0;
-+	for (i = 0; i < dev->chunkBitmapStride; i++) {
-+		__u8 x = *blkBits;
-+		while (x) {
-+			if (x & 1)
-+				n++;
-+			x >>= 1;
-+		}
-+
-+		blkBits++;
-+	}
-+	return n;
-+}
-+
-+/*
-+ * Verification code
-+ */
-+
-+static int yaffs_SkipVerification(yaffs_Device *dev)
-+{
-+	return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY | YAFFS_TRACE_VERIFY_FULL));
-+}
-+
-+static int yaffs_SkipFullVerification(yaffs_Device *dev)
-+{
-+	return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY_FULL));
-+}
-+
-+static int yaffs_SkipNANDVerification(yaffs_Device *dev)
-+{
-+	return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY_NAND));
-+}
-+
-+static const char *blockStateName[] = {
-+"Unknown",
-+"Needs scanning",
-+"Scanning",
-+"Empty",
-+"Allocating",
-+"Full",
-+"Dirty",
-+"Checkpoint",
-+"Collecting",
-+"Dead"
-+};
-+
-+static void yaffs_VerifyBlock(yaffs_Device *dev, yaffs_BlockInfo *bi, int n)
-+{
-+	int actuallyUsed;
-+	int inUse;
-+
-+	if (yaffs_SkipVerification(dev))
-+		return;
-+
-+	/* Report illegal runtime states */
-+	if (bi->blockState >= YAFFS_NUMBER_OF_BLOCK_STATES)
-+		T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has undefined state %d"TENDSTR), n, bi->blockState));
-+
-+	switch (bi->blockState) {
-+	case YAFFS_BLOCK_STATE_UNKNOWN:
-+	case YAFFS_BLOCK_STATE_SCANNING:
-+	case YAFFS_BLOCK_STATE_NEEDS_SCANNING:
-+		T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has bad run-state %s"TENDSTR),
-+		n, blockStateName[bi->blockState]));
-+	}
-+
-+	/* Check pages in use and soft deletions are legal */
-+
-+	actuallyUsed = bi->pagesInUse - bi->softDeletions;
-+
-+	if (bi->pagesInUse < 0 || bi->pagesInUse > dev->nChunksPerBlock ||
-+	   bi->softDeletions < 0 || bi->softDeletions > dev->nChunksPerBlock ||
-+	   actuallyUsed < 0 || actuallyUsed > dev->nChunksPerBlock)
-+		T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has illegal values pagesInUsed %d softDeletions %d"TENDSTR),
-+		n, bi->pagesInUse, bi->softDeletions));
-+
-+
-+	/* Check chunk bitmap legal */
-+	inUse = yaffs_CountChunkBits(dev, n);
-+	if (inUse != bi->pagesInUse)
-+		T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has inconsistent values pagesInUse %d counted chunk bits %d"TENDSTR),
-+			n, bi->pagesInUse, inUse));
-+
-+	/* Check that the sequence number is valid.
-+	 * Ten million is legal, but is very unlikely
-+	 */
-+	if (dev->isYaffs2 &&
-+	   (bi->blockState == YAFFS_BLOCK_STATE_ALLOCATING || bi->blockState == YAFFS_BLOCK_STATE_FULL) &&
-+	   (bi->sequenceNumber < YAFFS_LOWEST_SEQUENCE_NUMBER || bi->sequenceNumber > 10000000))
-+		T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has suspect sequence number of %d"TENDSTR),
-+		n, bi->sequenceNumber));
-+}
-+
-+static void yaffs_VerifyCollectedBlock(yaffs_Device *dev, yaffs_BlockInfo *bi,
-+		int n)
-+{
-+	yaffs_VerifyBlock(dev, bi, n);
-+
-+	/* After collection the block should be in the erased state */
-+	/* This will need to change if we do partial gc */
-+
-+	if (bi->blockState != YAFFS_BLOCK_STATE_COLLECTING &&
-+			bi->blockState != YAFFS_BLOCK_STATE_EMPTY) {
-+		T(YAFFS_TRACE_ERROR, (TSTR("Block %d is in state %d after gc, should be erased"TENDSTR),
-+			n, bi->blockState));
-+	}
-+}
-+
-+static void yaffs_VerifyBlocks(yaffs_Device *dev)
-+{
-+	int i;
-+	int nBlocksPerState[YAFFS_NUMBER_OF_BLOCK_STATES];
-+	int nIllegalBlockStates = 0;
-+
-+	if (yaffs_SkipVerification(dev))
-+		return;
-+
-+	memset(nBlocksPerState, 0, sizeof(nBlocksPerState));
-+
-+	for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) {
-+		yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i);
-+		yaffs_VerifyBlock(dev, bi, i);
-+
-+		if (bi->blockState < YAFFS_NUMBER_OF_BLOCK_STATES)
-+			nBlocksPerState[bi->blockState]++;
-+		else
-+			nIllegalBlockStates++;
-+	}
-+
-+	T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR)));
-+	T(YAFFS_TRACE_VERIFY, (TSTR("Block summary"TENDSTR)));
-+
-+	T(YAFFS_TRACE_VERIFY, (TSTR("%d blocks have illegal states"TENDSTR), nIllegalBlockStates));
-+	if (nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1)
-+		T(YAFFS_TRACE_VERIFY, (TSTR("Too many allocating blocks"TENDSTR)));
-+
-+	for (i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++)
-+		T(YAFFS_TRACE_VERIFY,
-+		  (TSTR("%s %d blocks"TENDSTR),
-+		  blockStateName[i], nBlocksPerState[i]));
-+
-+	if (dev->blocksInCheckpoint != nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT])
-+		T(YAFFS_TRACE_VERIFY,
-+		 (TSTR("Checkpoint block count wrong dev %d count %d"TENDSTR),
-+		 dev->blocksInCheckpoint, nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT]));
-+
-+	if (dev->nErasedBlocks != nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY])
-+		T(YAFFS_TRACE_VERIFY,
-+		 (TSTR("Erased block count wrong dev %d count %d"TENDSTR),
-+		 dev->nErasedBlocks, nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY]));
-+
-+	if (nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING] > 1)
-+		T(YAFFS_TRACE_VERIFY,
-+		 (TSTR("Too many collecting blocks %d (max is 1)"TENDSTR),
-+		 nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING]));
-+
-+	T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR)));
-+
-+}
-+
-+/*
-+ * Verify the object header. oh must be valid, but obj and tags may be NULL in which
-+ * case those tests will not be performed.
-+ */
-+static void yaffs_VerifyObjectHeader(yaffs_Object *obj, yaffs_ObjectHeader *oh, yaffs_ExtendedTags *tags, int parentCheck)
-+{
-+	if (obj && yaffs_SkipVerification(obj->myDev))
-+		return;
-+
-+	if (!(tags && obj && oh)) {
-+		T(YAFFS_TRACE_VERIFY,
-+				(TSTR("Verifying object header tags %x obj %x oh %x"TENDSTR),
-+				(__u32)tags, (__u32)obj, (__u32)oh));
-+		return;
-+	}
-+
-+	if (oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN ||
-+			oh->type > YAFFS_OBJECT_TYPE_MAX)
-+		T(YAFFS_TRACE_VERIFY,
-+			(TSTR("Obj %d header type is illegal value 0x%x"TENDSTR),
-+			tags->objectId, oh->type));
-+
-+	if (tags->objectId != obj->objectId)
-+		T(YAFFS_TRACE_VERIFY,
-+			(TSTR("Obj %d header mismatch objectId %d"TENDSTR),
-+			tags->objectId, obj->objectId));
-+
-+
-+	/*
-+	 * Check that the object's parent ids match if parentCheck requested.
-+	 *
-+	 * Tests do not apply to the root object.
-+	 */
-+
-+	if (parentCheck && tags->objectId > 1 && !obj->parent)
-+		T(YAFFS_TRACE_VERIFY,
-+			(TSTR("Obj %d header mismatch parentId %d obj->parent is NULL"TENDSTR),
-+			tags->objectId, oh->parentObjectId));
-+
-+	if (parentCheck && obj->parent &&
-+			oh->parentObjectId != obj->parent->objectId &&
-+			(oh->parentObjectId != YAFFS_OBJECTID_UNLINKED ||
-+			obj->parent->objectId != YAFFS_OBJECTID_DELETED))
-+		T(YAFFS_TRACE_VERIFY,
-+			(TSTR("Obj %d header mismatch parentId %d parentObjectId %d"TENDSTR),
-+			tags->objectId, oh->parentObjectId, obj->parent->objectId));
-+
-+	if (tags->objectId > 1 && oh->name[0] == 0) /* Null name */
-+		T(YAFFS_TRACE_VERIFY,
-+			(TSTR("Obj %d header name is NULL"TENDSTR),
-+			obj->objectId));
-+
-+	if (tags->objectId > 1 && ((__u8)(oh->name[0])) == 0xff) /* Trashed name */
-+		T(YAFFS_TRACE_VERIFY,
-+			(TSTR("Obj %d header name is 0xFF"TENDSTR),
-+			obj->objectId));
-+}
-+
-+
-+
-+static int yaffs_VerifyTnodeWorker(yaffs_Object *obj, yaffs_Tnode *tn,
-+					__u32 level, int chunkOffset)
-+{
-+	int i;
-+	yaffs_Device *dev = obj->myDev;
-+	int ok = 1;
-+
-+	if (tn) {
-+		if (level > 0) {
-+
-+			for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) {
-+				if (tn->internal[i]) {
-+					ok = yaffs_VerifyTnodeWorker(obj,
-+							tn->internal[i],
-+							level - 1,
-+							(chunkOffset<<YAFFS_TNODES_INTERNAL_BITS) + i);
-+				}
-+			}
-+		} else if (level == 0) {
-+			yaffs_ExtendedTags tags;
-+			__u32 objectId = obj->objectId;
-+
-+			chunkOffset <<=  YAFFS_TNODES_LEVEL0_BITS;
-+
-+			for (i = 0; i < YAFFS_NTNODES_LEVEL0; i++) {
-+				__u32 theChunk = yaffs_GetChunkGroupBase(dev, tn, i);
-+
-+				if (theChunk > 0) {
-+					/* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),tags.objectId,tags.chunkId,theChunk)); */
-+					yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, &tags);
-+					if (tags.objectId != objectId || tags.chunkId != chunkOffset) {
-+						T(~0, (TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR),
-+							objectId, chunkOffset, theChunk,
-+							tags.objectId, tags.chunkId));
-+					}
-+				}
-+				chunkOffset++;
-+			}
-+		}
-+	}
-+
-+	return ok;
-+
-+}
-+
-+
-+static void yaffs_VerifyFile(yaffs_Object *obj)
-+{
-+	int requiredTallness;
-+	int actualTallness;
-+	__u32 lastChunk;
-+	__u32 x;
-+	__u32 i;
-+	yaffs_Device *dev;
-+	yaffs_ExtendedTags tags;
-+	yaffs_Tnode *tn;
-+	__u32 objectId;
-+
-+	if (!obj)
-+		return;
-+
-+	if (yaffs_SkipVerification(obj->myDev))
-+		return;
-+
-+	dev = obj->myDev;
-+	objectId = obj->objectId;
-+
-+	/* Check file size is consistent with tnode depth */
-+	lastChunk =  obj->variant.fileVariant.fileSize / dev->nDataBytesPerChunk + 1;
-+	x = lastChunk >> YAFFS_TNODES_LEVEL0_BITS;
-+	requiredTallness = 0;
-+	while (x > 0) {
-+		x >>= YAFFS_TNODES_INTERNAL_BITS;
-+		requiredTallness++;
-+	}
-+
-+	actualTallness = obj->variant.fileVariant.topLevel;
-+
-+	if (requiredTallness > actualTallness)
-+		T(YAFFS_TRACE_VERIFY,
-+		(TSTR("Obj %d had tnode tallness %d, needs to be %d"TENDSTR),
-+		 obj->objectId, actualTallness, requiredTallness));
-+
-+
-+	/* Check that the chunks in the tnode tree are all correct.
-+	 * We do this by scanning through the tnode tree and
-+	 * checking the tags for every chunk match.
-+	 */
-+
-+	if (yaffs_SkipNANDVerification(dev))
-+		return;
-+
-+	for (i = 1; i <= lastChunk; i++) {
-+		tn = yaffs_FindLevel0Tnode(dev, &obj->variant.fileVariant, i);
-+
-+		if (tn) {
-+			__u32 theChunk = yaffs_GetChunkGroupBase(dev, tn, i);
-+			if (theChunk > 0) {
-+				/* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),objectId,i,theChunk)); */
-+				yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, &tags);
-+				if (tags.objectId != objectId || tags.chunkId != i) {
-+					T(~0, (TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR),
-+						objectId, i, theChunk,
-+						tags.objectId, tags.chunkId));
-+				}
-+			}
-+		}
-+	}
-+}
-+
-+
-+static void yaffs_VerifyHardLink(yaffs_Object *obj)
-+{
-+	if (obj && yaffs_SkipVerification(obj->myDev))
-+		return;
-+
-+	/* Verify sane equivalent object */
-+}
-+
-+static void yaffs_VerifySymlink(yaffs_Object *obj)
-+{
-+	if (obj && yaffs_SkipVerification(obj->myDev))
-+		return;
-+
-+	/* Verify symlink string */
-+}
-+
-+static void yaffs_VerifySpecial(yaffs_Object *obj)
-+{
-+	if (obj && yaffs_SkipVerification(obj->myDev))
-+		return;
-+}
-+
-+static void yaffs_VerifyObject(yaffs_Object *obj)
-+{
-+	yaffs_Device *dev;
-+
-+	__u32 chunkMin;
-+	__u32 chunkMax;
-+
-+	__u32 chunkIdOk;
-+	__u32 chunkInRange;
-+	__u32 chunkShouldNotBeDeleted;
-+	__u32 chunkValid;
-+
-+	if (!obj)
-+		return;
-+
-+	if (obj->beingCreated)
-+		return;
-+
-+	dev = obj->myDev;
-+
-+	if (yaffs_SkipVerification(dev))
-+		return;
-+
-+	/* Check sane object header chunk */
-+
-+	chunkMin = dev->internalStartBlock * dev->nChunksPerBlock;
-+	chunkMax = (dev->internalEndBlock+1) * dev->nChunksPerBlock - 1;
-+
-+	chunkInRange = (((unsigned)(obj->hdrChunk)) >= chunkMin && ((unsigned)(obj->hdrChunk)) <= chunkMax);
-+	chunkIdOk = chunkInRange || obj->hdrChunk == 0;
-+	chunkValid = chunkInRange &&
-+			yaffs_CheckChunkBit(dev,
-+					obj->hdrChunk / dev->nChunksPerBlock,
-+					obj->hdrChunk % dev->nChunksPerBlock);
-+	chunkShouldNotBeDeleted = chunkInRange && !chunkValid;
-+
-+	if (!obj->fake &&
-+			(!chunkIdOk || chunkShouldNotBeDeleted)) {
-+		T(YAFFS_TRACE_VERIFY,
-+			(TSTR("Obj %d has chunkId %d %s %s"TENDSTR),
-+			obj->objectId, obj->hdrChunk,
-+			chunkIdOk ? "" : ",out of range",
-+			chunkShouldNotBeDeleted ? ",marked as deleted" : ""));
-+	}
-+
-+	if (chunkValid && !yaffs_SkipNANDVerification(dev)) {
-+		yaffs_ExtendedTags tags;
-+		yaffs_ObjectHeader *oh;
-+		__u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__);
-+
-+		oh = (yaffs_ObjectHeader *)buffer;
-+
-+		yaffs_ReadChunkWithTagsFromNAND(dev, obj->hdrChunk, buffer,
-+				&tags);
-+
-+		yaffs_VerifyObjectHeader(obj, oh, &tags, 1);
-+
-+		yaffs_ReleaseTempBuffer(dev, buffer, __LINE__);
-+	}
-+
-+	/* Verify it has a parent */
-+	if (obj && !obj->fake &&
-+			(!obj->parent || obj->parent->myDev != dev)) {
-+		T(YAFFS_TRACE_VERIFY,
-+			(TSTR("Obj %d has parent pointer %p which does not look like an object"TENDSTR),
-+			obj->objectId, obj->parent));
-+	}
-+
-+	/* Verify parent is a directory */
-+	if (obj->parent && obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
-+		T(YAFFS_TRACE_VERIFY,
-+			(TSTR("Obj %d's parent is not a directory (type %d)"TENDSTR),
-+			obj->objectId, obj->parent->variantType));
-+	}
-+
-+	switch (obj->variantType) {
-+	case YAFFS_OBJECT_TYPE_FILE:
-+		yaffs_VerifyFile(obj);
-+		break;
-+	case YAFFS_OBJECT_TYPE_SYMLINK:
-+		yaffs_VerifySymlink(obj);
-+		break;
-+	case YAFFS_OBJECT_TYPE_DIRECTORY:
-+		yaffs_VerifyDirectory(obj);
-+		break;
-+	case YAFFS_OBJECT_TYPE_HARDLINK:
-+		yaffs_VerifyHardLink(obj);
-+		break;
-+	case YAFFS_OBJECT_TYPE_SPECIAL:
-+		yaffs_VerifySpecial(obj);
-+		break;
-+	case YAFFS_OBJECT_TYPE_UNKNOWN:
-+	default:
-+		T(YAFFS_TRACE_VERIFY,
-+		(TSTR("Obj %d has illegaltype %d"TENDSTR),
-+		obj->objectId, obj->variantType));
-+		break;
-+	}
-+}
-+
-+static void yaffs_VerifyObjects(yaffs_Device *dev)
-+{
-+	yaffs_Object *obj;
-+	int i;
-+	struct ylist_head *lh;
-+
-+	if (yaffs_SkipVerification(dev))
-+		return;
-+
-+	/* Iterate through the objects in each hash entry */
-+
-+	for (i = 0; i <  YAFFS_NOBJECT_BUCKETS; i++) {
-+		ylist_for_each(lh, &dev->objectBucket[i].list) {
-+			if (lh) {
-+				obj = ylist_entry(lh, yaffs_Object, hashLink);
-+				yaffs_VerifyObject(obj);
-+			}
-+		}
-+	}
-+}
-+
-+
-+/*
-+ *  Simple hash function. Needs to have a reasonable spread
-+ */
-+
-+static Y_INLINE int yaffs_HashFunction(int n)
-+{
-+	n = abs(n);
-+	return n % YAFFS_NOBJECT_BUCKETS;
-+}
-+
-+/*
-+ * Access functions to useful fake objects.
-+ * Note that root might have a presence in NAND if permissions are set.
-+ */
-+
-+yaffs_Object *yaffs_Root(yaffs_Device *dev)
-+{
-+	return dev->rootDir;
-+}
-+
-+yaffs_Object *yaffs_LostNFound(yaffs_Device *dev)
-+{
-+	return dev->lostNFoundDir;
-+}
-+
-+
-+/*
-+ *  Erased NAND checking functions
-+ */
-+
-+int yaffs_CheckFF(__u8 *buffer, int nBytes)
-+{
-+	/* Horrible, slow implementation */
-+	while (nBytes--) {
-+		if (*buffer != 0xFF)
-+			return 0;
-+		buffer++;
-+	}
-+	return 1;
-+}
-+
-+static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev,
-+				int chunkInNAND)
-+{
-+	int retval = YAFFS_OK;
-+	__u8 *data = yaffs_GetTempBuffer(dev, __LINE__);
-+	yaffs_ExtendedTags tags;
-+	int result;
-+
-+	result = yaffs_ReadChunkWithTagsFromNAND(dev, chunkInNAND, data, &tags);
-+
-+	if (tags.eccResult > YAFFS_ECC_RESULT_NO_ERROR)
-+		retval = YAFFS_FAIL;
-+
-+	if (!yaffs_CheckFF(data, dev->nDataBytesPerChunk) || tags.chunkUsed) {
-+		T(YAFFS_TRACE_NANDACCESS,
-+		  (TSTR("Chunk %d not erased" TENDSTR), chunkInNAND));
-+		retval = YAFFS_FAIL;
-+	}
-+
-+	yaffs_ReleaseTempBuffer(dev, data, __LINE__);
-+
-+	return retval;
-+
-+}
-+
-+static int yaffs_WriteNewChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev,
-+					const __u8 *data,
-+					yaffs_ExtendedTags *tags,
-+					int useReserve)
-+{
-+	int attempts = 0;
-+	int writeOk = 0;
-+	int chunk;
-+
-+	yaffs_InvalidateCheckpoint(dev);
-+
-+	do {
-+		yaffs_BlockInfo *bi = 0;
-+		int erasedOk = 0;
-+
-+		chunk = yaffs_AllocateChunk(dev, useReserve, &bi);
-+		if (chunk < 0) {
-+			/* no space */
-+			break;
-+		}
-+
-+		/* First check this chunk is erased, if it needs
-+		 * checking.  The checking policy (unless forced
-+		 * always on) is as follows:
-+		 *
-+		 * Check the first page we try to write in a block.
-+		 * If the check passes then we don't need to check any
-+		 * more.	If the check fails, we check again...
-+		 * If the block has been erased, we don't need to check.
-+		 *
-+		 * However, if the block has been prioritised for gc,
-+		 * then we think there might be something odd about
-+		 * this block and stop using it.
-+		 *
-+		 * Rationale: We should only ever see chunks that have
-+		 * not been erased if there was a partially written
-+		 * chunk due to power loss.  This checking policy should
-+		 * catch that case with very few checks and thus save a
-+		 * lot of checks that are most likely not needed.
-+		 */
-+		if (bi->gcPrioritise) {
-+			yaffs_DeleteChunk(dev, chunk, 1, __LINE__);
-+			/* try another chunk */
-+			continue;
-+		}
-+
-+		/* let's give it a try */
-+		attempts++;
-+
-+#ifdef CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED
-+		bi->skipErasedCheck = 0;
-+#endif
-+		if (!bi->skipErasedCheck) {
-+			erasedOk = yaffs_CheckChunkErased(dev, chunk);
-+			if (erasedOk != YAFFS_OK) {
-+				T(YAFFS_TRACE_ERROR,
-+				(TSTR("**>> yaffs chunk %d was not erased"
-+				TENDSTR), chunk));
-+
-+				/* try another chunk */
-+				continue;
-+			}
-+			bi->skipErasedCheck = 1;
-+		}
-+
-+		writeOk = yaffs_WriteChunkWithTagsToNAND(dev, chunk,
-+				data, tags);
-+		if (writeOk != YAFFS_OK) {
-+			yaffs_HandleWriteChunkError(dev, chunk, erasedOk);
-+			/* try another chunk */
-+			continue;
-+		}
-+
-+		/* Copy the data into the robustification buffer */
-+		yaffs_HandleWriteChunkOk(dev, chunk, data, tags);
-+
-+	} while (writeOk != YAFFS_OK &&
-+		(yaffs_wr_attempts <= 0 || attempts <= yaffs_wr_attempts));
-+
-+	if (!writeOk)
-+		chunk = -1;
-+
-+	if (attempts > 1) {
-+		T(YAFFS_TRACE_ERROR,
-+			(TSTR("**>> yaffs write required %d attempts" TENDSTR),
-+			attempts));
-+
-+		dev->nRetriedWrites += (attempts - 1);
-+	}
-+
-+	return chunk;
-+}
-+
-+/*
-+ * Block retiring for handling a broken block.
-+ */
-+
-+static void yaffs_RetireBlock(yaffs_Device *dev, int blockInNAND)
-+{
-+	yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND);
-+
-+	yaffs_InvalidateCheckpoint(dev);
-+
-+	if (yaffs_MarkBlockBad(dev, blockInNAND) != YAFFS_OK) {
-+		if (yaffs_EraseBlockInNAND(dev, blockInNAND) != YAFFS_OK) {
-+			T(YAFFS_TRACE_ALWAYS, (TSTR(
-+				"yaffs: Failed to mark bad and erase block %d"
-+				TENDSTR), blockInNAND));
-+		} else {
-+			yaffs_ExtendedTags tags;
-+			int chunkId = blockInNAND * dev->nChunksPerBlock;
-+
-+			__u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__);
-+
-+			memset(buffer, 0xff, dev->nDataBytesPerChunk);
-+			yaffs_InitialiseTags(&tags);
-+			tags.sequenceNumber = YAFFS_SEQUENCE_BAD_BLOCK;
-+			if (dev->writeChunkWithTagsToNAND(dev, chunkId -
-+				dev->chunkOffset, buffer, &tags) != YAFFS_OK)
-+				T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Failed to "
-+					TCONT("write bad block marker to block %d")
-+					TENDSTR), blockInNAND));
-+
-+			yaffs_ReleaseTempBuffer(dev, buffer, __LINE__);
-+		}
-+	}
-+
-+	bi->blockState = YAFFS_BLOCK_STATE_DEAD;
-+	bi->gcPrioritise = 0;
-+	bi->needsRetiring = 0;
-+
-+	dev->nRetiredBlocks++;
-+}
-+
-+/*
-+ * Functions for robustisizing TODO
-+ *
-+ */
-+
-+static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND,
-+				const __u8 *data,
-+				const yaffs_ExtendedTags *tags)
-+{
-+}
-+
-+static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND,
-+				const yaffs_ExtendedTags *tags)
-+{
-+}
-+
-+void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi)
-+{
-+	if (!bi->gcPrioritise) {
-+		bi->gcPrioritise = 1;
-+		dev->hasPendingPrioritisedGCs = 1;
-+		bi->chunkErrorStrikes++;
-+
-+		if (bi->chunkErrorStrikes > 3) {
-+			bi->needsRetiring = 1; /* Too many stikes, so retire this */
-+			T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Block struck out" TENDSTR)));
-+
-+		}
-+	}
-+}
-+
-+static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND,
-+		int erasedOk)
-+{
-+	int blockInNAND = chunkInNAND / dev->nChunksPerBlock;
-+	yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND);
-+
-+	yaffs_HandleChunkError(dev, bi);
-+
-+	if (erasedOk) {
-+		/* Was an actual write failure, so mark the block for retirement  */
-+		bi->needsRetiring = 1;
-+		T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
-+		  (TSTR("**>> Block %d needs retiring" TENDSTR), blockInNAND));
-+	}
-+
-+	/* Delete the chunk */
-+	yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__);
-+}
-+
-+
-+/*---------------- Name handling functions ------------*/
-+
-+static __u16 yaffs_CalcNameSum(const YCHAR *name)
-+{
-+	__u16 sum = 0;
-+	__u16 i = 1;
-+
-+	const YUCHAR *bname = (const YUCHAR *) name;
-+	if (bname) {
-+		while ((*bname) && (i < (YAFFS_MAX_NAME_LENGTH/2))) {
-+
-+#ifdef CONFIG_YAFFS_CASE_INSENSITIVE
-+			sum += yaffs_toupper(*bname) * i;
-+#else
-+			sum += (*bname) * i;
-+#endif
-+			i++;
-+			bname++;
-+		}
-+	}
-+	return sum;
-+}
-+
-+static void yaffs_SetObjectName(yaffs_Object *obj, const YCHAR *name)
-+{
-+#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM
-+	memset(obj->shortName, 0, sizeof(YCHAR) * (YAFFS_SHORT_NAME_LENGTH+1));
-+	if (name && yaffs_strlen(name) <= YAFFS_SHORT_NAME_LENGTH)
-+		yaffs_strcpy(obj->shortName, name);
-+	else
-+		obj->shortName[0] = _Y('\0');
-+#endif
-+	obj->sum = yaffs_CalcNameSum(name);
-+}
-+
-+/*-------------------- TNODES -------------------
-+
-+ * List of spare tnodes
-+ * The list is hooked together using the first pointer
-+ * in the tnode.
-+ */
-+
-+/* yaffs_CreateTnodes creates a bunch more tnodes and
-+ * adds them to the tnode free list.
-+ * Don't use this function directly
-+ */
-+
-+static int yaffs_CreateTnodes(yaffs_Device *dev, int nTnodes)
-+{
-+	int i;
-+	int tnodeSize;
-+	yaffs_Tnode *newTnodes;
-+	__u8 *mem;
-+	yaffs_Tnode *curr;
-+	yaffs_Tnode *next;
-+	yaffs_TnodeList *tnl;
-+
-+	if (nTnodes < 1)
-+		return YAFFS_OK;
-+
-+	/* Calculate the tnode size in bytes for variable width tnode support.
-+	 * Must be a multiple of 32-bits  */
-+	tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
-+
-+	if (tnodeSize < sizeof(yaffs_Tnode))
-+		tnodeSize = sizeof(yaffs_Tnode);
-+
-+	/* make these things */
-+
-+	newTnodes = YMALLOC(nTnodes * tnodeSize);
-+	mem = (__u8 *)newTnodes;
-+
-+	if (!newTnodes) {
-+		T(YAFFS_TRACE_ERROR,
-+			(TSTR("yaffs: Could not allocate Tnodes" TENDSTR)));
-+		return YAFFS_FAIL;
-+	}
-+
-+	/* Hook them into the free list */
-+#if 0
-+	for (i = 0; i < nTnodes - 1; i++) {
-+		newTnodes[i].internal[0] = &newTnodes[i + 1];
-+#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG
-+		newTnodes[i].internal[YAFFS_NTNODES_INTERNAL] = (void *)1;
-+#endif
-+	}
-+
-+	newTnodes[nTnodes - 1].internal[0] = dev->freeTnodes;
-+#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG
-+	newTnodes[nTnodes - 1].internal[YAFFS_NTNODES_INTERNAL] = (void *)1;
-+#endif
-+	dev->freeTnodes = newTnodes;
-+#else
-+	/* New hookup for wide tnodes */
-+	for (i = 0; i < nTnodes - 1; i++) {
-+		curr = (yaffs_Tnode *) &mem[i * tnodeSize];
-+		next = (yaffs_Tnode *) &mem[(i+1) * tnodeSize];
-+		curr->internal[0] = next;
-+	}
-+
-+	curr = (yaffs_Tnode *) &mem[(nTnodes - 1) * tnodeSize];
-+	curr->internal[0] = dev->freeTnodes;
-+	dev->freeTnodes = (yaffs_Tnode *)mem;
-+
-+#endif
-+
-+
-+	dev->nFreeTnodes += nTnodes;
-+	dev->nTnodesCreated += nTnodes;
-+
-+	/* Now add this bunch of tnodes to a list for freeing up.
-+	 * NB If we can't add this to the management list it isn't fatal
-+	 * but it just means we can't free this bunch of tnodes later.
-+	 */
-+
-+	tnl = YMALLOC(sizeof(yaffs_TnodeList));
-+	if (!tnl) {
-+		T(YAFFS_TRACE_ERROR,
-+		  (TSTR
-+		   ("yaffs: Could not add tnodes to management list" TENDSTR)));
-+		   return YAFFS_FAIL;
-+	} else {
-+		tnl->tnodes = newTnodes;
-+		tnl->next = dev->allocatedTnodeList;
-+		dev->allocatedTnodeList = tnl;
-+	}
-+
-+	T(YAFFS_TRACE_ALLOCATE, (TSTR("yaffs: Tnodes added" TENDSTR)));
-+
-+	return YAFFS_OK;
-+}
-+
-+/* GetTnode gets us a clean tnode. Tries to make allocate more if we run out */
-+
-+static yaffs_Tnode *yaffs_GetTnodeRaw(yaffs_Device *dev)
-+{
-+	yaffs_Tnode *tn = NULL;
-+
-+	/* If there are none left make more */
-+	if (!dev->freeTnodes)
-+		yaffs_CreateTnodes(dev, YAFFS_ALLOCATION_NTNODES);
-+
-+	if (dev->freeTnodes) {
-+		tn = dev->freeTnodes;
-+#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG
-+		if (tn->internal[YAFFS_NTNODES_INTERNAL] != (void *)1) {
-+			/* Hoosterman, this thing looks like it isn't in the list */
-+			T(YAFFS_TRACE_ALWAYS,
-+			  (TSTR("yaffs: Tnode list bug 1" TENDSTR)));
-+		}
-+#endif
-+		dev->freeTnodes = dev->freeTnodes->internal[0];
-+		dev->nFreeTnodes--;
-+	}
-+
-+	dev->nCheckpointBlocksRequired = 0; /* force recalculation*/
-+
-+	return tn;
-+}
-+
-+static yaffs_Tnode *yaffs_GetTnode(yaffs_Device *dev)
-+{
-+	yaffs_Tnode *tn = yaffs_GetTnodeRaw(dev);
-+	int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
-+
-+	if (tnodeSize < sizeof(yaffs_Tnode))
-+		tnodeSize = sizeof(yaffs_Tnode);
-+
-+	if (tn)
-+		memset(tn, 0, tnodeSize);
-+
-+	return tn;
-+}
-+
-+/* FreeTnode frees up a tnode and puts it back on the free list */
-+static void yaffs_FreeTnode(yaffs_Device *dev, yaffs_Tnode *tn)
-+{
-+	if (tn) {
-+#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG
-+		if (tn->internal[YAFFS_NTNODES_INTERNAL] != 0) {
-+			/* Hoosterman, this thing looks like it is already in the list */
-+			T(YAFFS_TRACE_ALWAYS,
-+			  (TSTR("yaffs: Tnode list bug 2" TENDSTR)));
-+		}
-+		tn->internal[YAFFS_NTNODES_INTERNAL] = (void *)1;
-+#endif
-+		tn->internal[0] = dev->freeTnodes;
-+		dev->freeTnodes = tn;
-+		dev->nFreeTnodes++;
-+	}
-+	dev->nCheckpointBlocksRequired = 0; /* force recalculation*/
-+}
-+
-+static void yaffs_DeinitialiseTnodes(yaffs_Device *dev)
-+{
-+	/* Free the list of allocated tnodes */
-+	yaffs_TnodeList *tmp;
-+
-+	while (dev->allocatedTnodeList) {
-+		tmp = dev->allocatedTnodeList->next;
-+
-+		YFREE(dev->allocatedTnodeList->tnodes);
-+		YFREE(dev->allocatedTnodeList);
-+		dev->allocatedTnodeList = tmp;
-+
-+	}
-+
-+	dev->freeTnodes = NULL;
-+	dev->nFreeTnodes = 0;
-+}
-+
-+static void yaffs_InitialiseTnodes(yaffs_Device *dev)
-+{
-+	dev->allocatedTnodeList = NULL;
-+	dev->freeTnodes = NULL;
-+	dev->nFreeTnodes = 0;
-+	dev->nTnodesCreated = 0;
-+}
-+
-+
-+void yaffs_PutLevel0Tnode(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos,
-+		unsigned val)
-+{
-+	__u32 *map = (__u32 *)tn;
-+	__u32 bitInMap;
-+	__u32 bitInWord;
-+	__u32 wordInMap;
-+	__u32 mask;
-+
-+	pos &= YAFFS_TNODES_LEVEL0_MASK;
-+	val >>= dev->chunkGroupBits;
-+
-+	bitInMap = pos * dev->tnodeWidth;
-+	wordInMap = bitInMap / 32;
-+	bitInWord = bitInMap & (32 - 1);
-+
-+	mask = dev->tnodeMask << bitInWord;
-+
-+	map[wordInMap] &= ~mask;
-+	map[wordInMap] |= (mask & (val << bitInWord));
-+
-+	if (dev->tnodeWidth > (32 - bitInWord)) {
-+		bitInWord = (32 - bitInWord);
-+		wordInMap++;;
-+		mask = dev->tnodeMask >> (/*dev->tnodeWidth -*/ bitInWord);
-+		map[wordInMap] &= ~mask;
-+		map[wordInMap] |= (mask & (val >> bitInWord));
-+	}
-+}
-+
-+static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn,
-+		unsigned pos)
-+{
-+	__u32 *map = (__u32 *)tn;
-+	__u32 bitInMap;
-+	__u32 bitInWord;
-+	__u32 wordInMap;
-+	__u32 val;
-+
-+	pos &= YAFFS_TNODES_LEVEL0_MASK;
-+
-+	bitInMap = pos * dev->tnodeWidth;
-+	wordInMap = bitInMap / 32;
-+	bitInWord = bitInMap & (32 - 1);
-+
-+	val = map[wordInMap] >> bitInWord;
-+
-+	if	(dev->tnodeWidth > (32 - bitInWord)) {
-+		bitInWord = (32 - bitInWord);
-+		wordInMap++;;
-+		val |= (map[wordInMap] << bitInWord);
-+	}
-+
-+	val &= dev->tnodeMask;
-+	val <<= dev->chunkGroupBits;
-+
-+	return val;
-+}
-+
-+/* ------------------- End of individual tnode manipulation -----------------*/
-+
-+/* ---------Functions to manipulate the look-up tree (made up of tnodes) ------
-+ * The look up tree is represented by the top tnode and the number of topLevel
-+ * in the tree. 0 means only the level 0 tnode is in the tree.
-+ */
-+
-+/* FindLevel0Tnode finds the level 0 tnode, if one exists. */
-+static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device *dev,
-+					yaffs_FileStructure *fStruct,
-+					__u32 chunkId)
-+{
-+	yaffs_Tnode *tn = fStruct->top;
-+	__u32 i;
-+	int requiredTallness;
-+	int level = fStruct->topLevel;
-+
-+	/* Check sane level and chunk Id */
-+	if (level < 0 || level > YAFFS_TNODES_MAX_LEVEL)
-+		return NULL;
-+
-+	if (chunkId > YAFFS_MAX_CHUNK_ID)
-+		return NULL;
-+
-+	/* First check we're tall enough (ie enough topLevel) */
-+
-+	i = chunkId >> YAFFS_TNODES_LEVEL0_BITS;
-+	requiredTallness = 0;
-+	while (i) {
-+		i >>= YAFFS_TNODES_INTERNAL_BITS;
-+		requiredTallness++;
-+	}
-+
-+	if (requiredTallness > fStruct->topLevel)
-+		return NULL; /* Not tall enough, so we can't find it */
-+
-+	/* Traverse down to level 0 */
-+	while (level > 0 && tn) {
-+		tn = tn->internal[(chunkId >>
-+			(YAFFS_TNODES_LEVEL0_BITS +
-+				(level - 1) *
-+				YAFFS_TNODES_INTERNAL_BITS)) &
-+			YAFFS_TNODES_INTERNAL_MASK];
-+		level--;
-+	}
-+
-+	return tn;
-+}
-+
-+/* AddOrFindLevel0Tnode finds the level 0 tnode if it exists, otherwise first expands the tree.
-+ * This happens in two steps:
-+ *  1. If the tree isn't tall enough, then make it taller.
-+ *  2. Scan down the tree towards the level 0 tnode adding tnodes if required.
-+ *
-+ * Used when modifying the tree.
-+ *
-+ *  If the tn argument is NULL, then a fresh tnode will be added otherwise the specified tn will
-+ *  be plugged into the ttree.
-+ */
-+
-+static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device *dev,
-+					yaffs_FileStructure *fStruct,
-+					__u32 chunkId,
-+					yaffs_Tnode *passedTn)
-+{
-+	int requiredTallness;
-+	int i;
-+	int l;
-+	yaffs_Tnode *tn;
-+
-+	__u32 x;
-+
-+
-+	/* Check sane level and page Id */
-+	if (fStruct->topLevel < 0 || fStruct->topLevel > YAFFS_TNODES_MAX_LEVEL)
-+		return NULL;
-+
-+	if (chunkId > YAFFS_MAX_CHUNK_ID)
-+		return NULL;
-+
-+	/* First check we're tall enough (ie enough topLevel) */
-+
-+	x = chunkId >> YAFFS_TNODES_LEVEL0_BITS;
-+	requiredTallness = 0;
-+	while (x) {
-+		x >>= YAFFS_TNODES_INTERNAL_BITS;
-+		requiredTallness++;
-+	}
-+
-+
-+	if (requiredTallness > fStruct->topLevel) {
-+		/* Not tall enough, gotta make the tree taller */
-+		for (i = fStruct->topLevel; i < requiredTallness; i++) {
-+
-+			tn = yaffs_GetTnode(dev);
-+
-+			if (tn) {
-+				tn->internal[0] = fStruct->top;
-+				fStruct->top = tn;
-+			} else {
-+				T(YAFFS_TRACE_ERROR,
-+				  (TSTR("yaffs: no more tnodes" TENDSTR)));
-+			}
-+		}
-+
-+		fStruct->topLevel = requiredTallness;
-+	}
-+
-+	/* Traverse down to level 0, adding anything we need */
-+
-+	l = fStruct->topLevel;
-+	tn = fStruct->top;
-+
-+	if (l > 0) {
-+		while (l > 0 && tn) {
-+			x = (chunkId >>
-+			     (YAFFS_TNODES_LEVEL0_BITS +
-+			      (l - 1) * YAFFS_TNODES_INTERNAL_BITS)) &
-+			    YAFFS_TNODES_INTERNAL_MASK;
-+
-+
-+			if ((l > 1) && !tn->internal[x]) {
-+				/* Add missing non-level-zero tnode */
-+				tn->internal[x] = yaffs_GetTnode(dev);
-+
-+			} else if (l == 1) {
-+				/* Looking from level 1 at level 0 */
-+				if (passedTn) {
-+					/* If we already have one, then release it.*/
-+					if (tn->internal[x])
-+						yaffs_FreeTnode(dev, tn->internal[x]);
-+					tn->internal[x] = passedTn;
-+
-+				} else if (!tn->internal[x]) {
-+					/* Don't have one, none passed in */
-+					tn->internal[x] = yaffs_GetTnode(dev);
-+				}
-+			}
-+
-+			tn = tn->internal[x];
-+			l--;
-+		}
-+	} else {
-+		/* top is level 0 */
-+		if (passedTn) {
-+			memcpy(tn, passedTn, (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8);
-+			yaffs_FreeTnode(dev, passedTn);
-+		}
-+	}
-+
-+	return tn;
-+}
-+
-+static int yaffs_FindChunkInGroup(yaffs_Device *dev, int theChunk,
-+				yaffs_ExtendedTags *tags, int objectId,
-+				int chunkInInode)
-+{
-+	int j;
-+
-+	for (j = 0; theChunk && j < dev->chunkGroupSize; j++) {
-+		if (yaffs_CheckChunkBit(dev, theChunk / dev->nChunksPerBlock,
-+				theChunk % dev->nChunksPerBlock)) {
-+			yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL,
-+							tags);
-+			if (yaffs_TagsMatch(tags, objectId, chunkInInode)) {
-+				/* found it; */
-+				return theChunk;
-+			}
-+		}
-+		theChunk++;
-+	}
-+	return -1;
-+}
-+
-+
-+/* DeleteWorker scans backwards through the tnode tree and deletes all the
-+ * chunks and tnodes in the file
-+ * Returns 1 if the tree was deleted.
-+ * Returns 0 if it stopped early due to hitting the limit and the delete is incomplete.
-+ */
-+
-+static int yaffs_DeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, __u32 level,
-+			      int chunkOffset, int *limit)
-+{
-+	int i;
-+	int chunkInInode;
-+	int theChunk;
-+	yaffs_ExtendedTags tags;
-+	int foundChunk;
-+	yaffs_Device *dev = in->myDev;
-+
-+	int allDone = 1;
-+
-+	if (tn) {
-+		if (level > 0) {
-+			for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0;
-+			     i--) {
-+				if (tn->internal[i]) {
-+					if (limit && (*limit) < 0) {
-+						allDone = 0;
-+					} else {
-+						allDone =
-+							yaffs_DeleteWorker(in,
-+								tn->
-+								internal
-+								[i],
-+								level -
-+								1,
-+								(chunkOffset
-+									<<
-+									YAFFS_TNODES_INTERNAL_BITS)
-+								+ i,
-+								limit);
-+					}
-+					if (allDone) {
-+						yaffs_FreeTnode(dev,
-+								tn->
-+								internal[i]);
-+						tn->internal[i] = NULL;
-+					}
-+				}
-+			}
-+			return (allDone) ? 1 : 0;
-+		} else if (level == 0) {
-+			int hitLimit = 0;
-+
-+			for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0 && !hitLimit;
-+					i--) {
-+				theChunk = yaffs_GetChunkGroupBase(dev, tn, i);
-+				if (theChunk) {
-+
-+					chunkInInode = (chunkOffset <<
-+						YAFFS_TNODES_LEVEL0_BITS) + i;
-+
-+					foundChunk =
-+						yaffs_FindChunkInGroup(dev,
-+								theChunk,
-+								&tags,
-+								in->objectId,
-+								chunkInInode);
-+
-+					if (foundChunk > 0) {
-+						yaffs_DeleteChunk(dev,
-+								  foundChunk, 1,
-+								  __LINE__);
-+						in->nDataChunks--;
-+						if (limit) {
-+							*limit = *limit - 1;
-+							if (*limit <= 0)
-+								hitLimit = 1;
-+						}
-+
-+					}
-+
-+					yaffs_PutLevel0Tnode(dev, tn, i, 0);
-+				}
-+
-+			}
-+			return (i < 0) ? 1 : 0;
-+
-+		}
-+
-+	}
-+
-+	return 1;
-+
-+}
-+
-+static void yaffs_SoftDeleteChunk(yaffs_Device *dev, int chunk)
-+{
-+	yaffs_BlockInfo *theBlock;
-+
-+	T(YAFFS_TRACE_DELETION, (TSTR("soft delete chunk %d" TENDSTR), chunk));
-+
-+	theBlock = yaffs_GetBlockInfo(dev, chunk / dev->nChunksPerBlock);
-+	if (theBlock) {
-+		theBlock->softDeletions++;
-+		dev->nFreeChunks++;
-+	}
-+}
-+
-+/* SoftDeleteWorker scans backwards through the tnode tree and soft deletes all the chunks in the file.
-+ * All soft deleting does is increment the block's softdelete count and pulls the chunk out
-+ * of the tnode.
-+ * Thus, essentially this is the same as DeleteWorker except that the chunks are soft deleted.
-+ */
-+
-+static int yaffs_SoftDeleteWorker(yaffs_Object *in, yaffs_Tnode *tn,
-+				  __u32 level, int chunkOffset)
-+{
-+	int i;
-+	int theChunk;
-+	int allDone = 1;
-+	yaffs_Device *dev = in->myDev;
-+
-+	if (tn) {
-+		if (level > 0) {
-+
-+			for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0;
-+			     i--) {
-+				if (tn->internal[i]) {
-+					allDone =
-+					    yaffs_SoftDeleteWorker(in,
-+								   tn->
-+								   internal[i],
-+								   level - 1,
-+								   (chunkOffset
-+								    <<
-+								    YAFFS_TNODES_INTERNAL_BITS)
-+								   + i);
-+					if (allDone) {
-+						yaffs_FreeTnode(dev,
-+								tn->
-+								internal[i]);
-+						tn->internal[i] = NULL;
-+					} else {
-+						/* Hoosterman... how could this happen? */
-+					}
-+				}
-+			}
-+			return (allDone) ? 1 : 0;
-+		} else if (level == 0) {
-+
-+			for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0; i--) {
-+				theChunk = yaffs_GetChunkGroupBase(dev, tn, i);
-+				if (theChunk) {
-+					/* Note this does not find the real chunk, only the chunk group.
-+					 * We make an assumption that a chunk group is not larger than
-+					 * a block.
-+					 */
-+					yaffs_SoftDeleteChunk(dev, theChunk);
-+					yaffs_PutLevel0Tnode(dev, tn, i, 0);
-+				}
-+
-+			}
-+			return 1;
-+
-+		}
-+
-+	}
-+
-+	return 1;
-+
-+}
-+
-+static void yaffs_SoftDeleteFile(yaffs_Object *obj)
-+{
-+	if (obj->deleted &&
-+	    obj->variantType == YAFFS_OBJECT_TYPE_FILE && !obj->softDeleted) {
-+		if (obj->nDataChunks <= 0) {
-+			/* Empty file with no duplicate object headers, just delete it immediately */
-+			yaffs_FreeTnode(obj->myDev,
-+					obj->variant.fileVariant.top);
-+			obj->variant.fileVariant.top = NULL;
-+			T(YAFFS_TRACE_TRACING,
-+			  (TSTR("yaffs: Deleting empty file %d" TENDSTR),
-+			   obj->objectId));
-+			yaffs_DoGenericObjectDeletion(obj);
-+		} else {
-+			yaffs_SoftDeleteWorker(obj,
-+					       obj->variant.fileVariant.top,
-+					       obj->variant.fileVariant.
-+					       topLevel, 0);
-+			obj->softDeleted = 1;
-+		}
-+	}
-+}
-+
-+/* Pruning removes any part of the file structure tree that is beyond the
-+ * bounds of the file (ie that does not point to chunks).
-+ *
-+ * A file should only get pruned when its size is reduced.
-+ *
-+ * Before pruning, the chunks must be pulled from the tree and the
-+ * level 0 tnode entries must be zeroed out.
-+ * Could also use this for file deletion, but that's probably better handled
-+ * by a special case.
-+ */
-+
-+static yaffs_Tnode *yaffs_PruneWorker(yaffs_Device *dev, yaffs_Tnode *tn,
-+				__u32 level, int del0)
-+{
-+	int i;
-+	int hasData;
-+
-+	if (tn) {
-+		hasData = 0;
-+
-+		for (i = 0; i < YAFFS_NTNODES_INTERNAL; i++) {
-+			if (tn->internal[i] && level > 0) {
-+				tn->internal[i] =
-+				    yaffs_PruneWorker(dev, tn->internal[i],
-+						      level - 1,
-+						      (i == 0) ? del0 : 1);
-+			}
-+
-+			if (tn->internal[i])
-+				hasData++;
-+		}
-+
-+		if (hasData == 0 && del0) {
-+			/* Free and return NULL */
-+
-+			yaffs_FreeTnode(dev, tn);
-+			tn = NULL;
-+		}
-+
-+	}
-+
-+	return tn;
-+
-+}
-+
-+static int yaffs_PruneFileStructure(yaffs_Device *dev,
-+				yaffs_FileStructure *fStruct)
-+{
-+	int i;
-+	int hasData;
-+	int done = 0;
-+	yaffs_Tnode *tn;
-+
-+	if (fStruct->topLevel > 0) {
-+		fStruct->top =
-+		    yaffs_PruneWorker(dev, fStruct->top, fStruct->topLevel, 0);
-+
-+		/* Now we have a tree with all the non-zero branches NULL but the height
-+		 * is the same as it was.
-+		 * Let's see if we can trim internal tnodes to shorten the tree.
-+		 * We can do this if only the 0th element in the tnode is in use
-+		 * (ie all the non-zero are NULL)
-+		 */
-+
-+		while (fStruct->topLevel && !done) {
-+			tn = fStruct->top;
-+
-+			hasData = 0;
-+			for (i = 1; i < YAFFS_NTNODES_INTERNAL; i++) {
-+				if (tn->internal[i])
-+					hasData++;
-+			}
-+
-+			if (!hasData) {
-+				fStruct->top = tn->internal[0];
-+				fStruct->topLevel--;
-+				yaffs_FreeTnode(dev, tn);
-+			} else {
-+				done = 1;
-+			}
-+		}
-+	}
-+
-+	return YAFFS_OK;
-+}
-+
-+/*-------------------- End of File Structure functions.-------------------*/
-+
-+/* yaffs_CreateFreeObjects creates a bunch more objects and
-+ * adds them to the object free list.
-+ */
-+static int yaffs_CreateFreeObjects(yaffs_Device *dev, int nObjects)
-+{
-+	int i;
-+	yaffs_Object *newObjects;
-+	yaffs_ObjectList *list;
-+
-+	if (nObjects < 1)
-+		return YAFFS_OK;
-+
-+	/* make these things */
-+	newObjects = YMALLOC(nObjects * sizeof(yaffs_Object));
-+	list = YMALLOC(sizeof(yaffs_ObjectList));
-+
-+	if (!newObjects || !list) {
-+		if (newObjects)
-+			YFREE(newObjects);
-+		if (list)
-+			YFREE(list);
-+		T(YAFFS_TRACE_ALLOCATE,
-+		  (TSTR("yaffs: Could not allocate more objects" TENDSTR)));
-+		return YAFFS_FAIL;
-+	}
-+
-+	/* Hook them into the free list */
-+	for (i = 0; i < nObjects - 1; i++) {
-+		newObjects[i].siblings.next =
-+				(struct ylist_head *)(&newObjects[i + 1]);
-+	}
-+
-+	newObjects[nObjects - 1].siblings.next = (void *)dev->freeObjects;
-+	dev->freeObjects = newObjects;
-+	dev->nFreeObjects += nObjects;
-+	dev->nObjectsCreated += nObjects;
-+
-+	/* Now add this bunch of Objects to a list for freeing up. */
-+
-+	list->objects = newObjects;
-+	list->next = dev->allocatedObjectList;
-+	dev->allocatedObjectList = list;
-+
-+	return YAFFS_OK;
-+}
-+
-+
-+/* AllocateEmptyObject gets us a clean Object. Tries to make allocate more if we run out */
-+static yaffs_Object *yaffs_AllocateEmptyObject(yaffs_Device *dev)
-+{
-+	yaffs_Object *tn = NULL;
-+
-+#ifdef VALGRIND_TEST
-+	tn = YMALLOC(sizeof(yaffs_Object));
-+#else
-+	/* If there are none left make more */
-+	if (!dev->freeObjects)
-+		yaffs_CreateFreeObjects(dev, YAFFS_ALLOCATION_NOBJECTS);
-+
-+	if (dev->freeObjects) {
-+		tn = dev->freeObjects;
-+		dev->freeObjects =
-+			(yaffs_Object *) (dev->freeObjects->siblings.next);
-+		dev->nFreeObjects--;
-+	}
-+#endif
-+	if (tn) {
-+		/* Now sweeten it up... */
-+
-+		memset(tn, 0, sizeof(yaffs_Object));
-+		tn->beingCreated = 1;
-+
-+		tn->myDev = dev;
-+		tn->hdrChunk = 0;
-+		tn->variantType = YAFFS_OBJECT_TYPE_UNKNOWN;
-+		YINIT_LIST_HEAD(&(tn->hardLinks));
-+		YINIT_LIST_HEAD(&(tn->hashLink));
-+		YINIT_LIST_HEAD(&tn->siblings);
-+
-+
-+		/* Now make the directory sane */
-+		if (dev->rootDir) {
-+			tn->parent = dev->rootDir;
-+			ylist_add(&(tn->siblings), &dev->rootDir->variant.directoryVariant.children);
-+		}
-+
-+		/* Add it to the lost and found directory.
-+		 * NB Can't put root or lostNFound in lostNFound so
-+		 * check if lostNFound exists first
-+		 */
-+		if (dev->lostNFoundDir)
-+			yaffs_AddObjectToDirectory(dev->lostNFoundDir, tn);
-+
-+		tn->beingCreated = 0;
-+	}
-+
-+	dev->nCheckpointBlocksRequired = 0; /* force recalculation*/
-+
-+	return tn;
-+}
-+
-+static yaffs_Object *yaffs_CreateFakeDirectory(yaffs_Device *dev, int number,
-+					       __u32 mode)
-+{
-+
-+	yaffs_Object *obj =
-+	    yaffs_CreateNewObject(dev, number, YAFFS_OBJECT_TYPE_DIRECTORY);
-+	if (obj) {
-+		obj->fake = 1;		/* it is fake so it might have no NAND presence... */
-+		obj->renameAllowed = 0;	/* ... and we're not allowed to rename it... */
-+		obj->unlinkAllowed = 0;	/* ... or unlink it */
-+		obj->deleted = 0;
-+		obj->unlinked = 0;
-+		obj->yst_mode = mode;
-+		obj->myDev = dev;
-+		obj->hdrChunk = 0;	/* Not a valid chunk. */
-+	}
-+
-+	return obj;
-+
-+}
-+
-+static void yaffs_UnhashObject(yaffs_Object *tn)
-+{
-+	int bucket;
-+	yaffs_Device *dev = tn->myDev;
-+
-+	/* If it is still linked into the bucket list, free from the list */
-+	if (!ylist_empty(&tn->hashLink)) {
-+		ylist_del_init(&tn->hashLink);
-+		bucket = yaffs_HashFunction(tn->objectId);
-+		dev->objectBucket[bucket].count--;
-+	}
-+}
-+
-+/*  FreeObject frees up a Object and puts it back on the free list */
-+static void yaffs_FreeObject(yaffs_Object *tn)
-+{
-+	yaffs_Device *dev = tn->myDev;
-+
-+#ifdef __KERNEL__
-+	T(YAFFS_TRACE_OS, (TSTR("FreeObject %p inode %p"TENDSTR), tn, tn->myInode));
-+#endif
-+
-+	if (tn->parent)
-+		YBUG();
-+	if (!ylist_empty(&tn->siblings))
-+		YBUG();
-+
-+
-+#ifdef __KERNEL__
-+	if (tn->myInode) {
-+		/* We're still hooked up to a cached inode.
-+		 * Don't delete now, but mark for later deletion
-+		 */
-+		tn->deferedFree = 1;
-+		return;
-+	}
-+#endif
-+
-+	yaffs_UnhashObject(tn);
-+
-+#ifdef VALGRIND_TEST
-+	YFREE(tn);
-+#else
-+	/* Link into the free list. */
-+	tn->siblings.next = (struct ylist_head *)(dev->freeObjects);
-+	dev->freeObjects = tn;
-+	dev->nFreeObjects++;
-+#endif
-+	dev->nCheckpointBlocksRequired = 0; /* force recalculation*/
-+}
-+
-+#ifdef __KERNEL__
-+
-+void yaffs_HandleDeferedFree(yaffs_Object *obj)
-+{
-+	if (obj->deferedFree)
-+		yaffs_FreeObject(obj);
-+}
-+
-+#endif
-+
-+static void yaffs_DeinitialiseObjects(yaffs_Device *dev)
-+{
-+	/* Free the list of allocated Objects */
-+
-+	yaffs_ObjectList *tmp;
-+
-+	while (dev->allocatedObjectList) {
-+		tmp = dev->allocatedObjectList->next;
-+		YFREE(dev->allocatedObjectList->objects);
-+		YFREE(dev->allocatedObjectList);
-+
-+		dev->allocatedObjectList = tmp;
-+	}
-+
-+	dev->freeObjects = NULL;
-+	dev->nFreeObjects = 0;
-+}
-+
-+static void yaffs_InitialiseObjects(yaffs_Device *dev)
-+{
-+	int i;
-+
-+	dev->allocatedObjectList = NULL;
-+	dev->freeObjects = NULL;
-+	dev->nFreeObjects = 0;
-+
-+	for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) {
-+		YINIT_LIST_HEAD(&dev->objectBucket[i].list);
-+		dev->objectBucket[i].count = 0;
-+	}
-+}
-+
-+static int yaffs_FindNiceObjectBucket(yaffs_Device *dev)
-+{
-+	static int x;
-+	int i;
-+	int l = 999;
-+	int lowest = 999999;
-+
-+	/* First let's see if we can find one that's empty. */
-+
-+	for (i = 0; i < 10 && lowest > 0; i++) {
-+		x++;
-+		x %= YAFFS_NOBJECT_BUCKETS;
-+		if (dev->objectBucket[x].count < lowest) {
-+			lowest = dev->objectBucket[x].count;
-+			l = x;
-+		}
-+
-+	}
-+
-+	/* If we didn't find an empty list, then try
-+	 * looking a bit further for a short one
-+	 */
-+
-+	for (i = 0; i < 10 && lowest > 3; i++) {
-+		x++;
-+		x %= YAFFS_NOBJECT_BUCKETS;
-+		if (dev->objectBucket[x].count < lowest) {
-+			lowest = dev->objectBucket[x].count;
-+			l = x;
-+		}
-+
-+	}
-+
-+	return l;
-+}
-+
-+static int yaffs_CreateNewObjectNumber(yaffs_Device *dev)
-+{
-+	int bucket = yaffs_FindNiceObjectBucket(dev);
-+
-+	/* Now find an object value that has not already been taken
-+	 * by scanning the list.
-+	 */
-+
-+	int found = 0;
-+	struct ylist_head *i;
-+
-+	__u32 n = (__u32) bucket;
-+
-+	/* yaffs_CheckObjectHashSanity();  */
-+
-+	while (!found) {
-+		found = 1;
-+		n += YAFFS_NOBJECT_BUCKETS;
-+		if (1 || dev->objectBucket[bucket].count > 0) {
-+			ylist_for_each(i, &dev->objectBucket[bucket].list) {
-+				/* If there is already one in the list */
-+				if (i && ylist_entry(i, yaffs_Object,
-+						hashLink)->objectId == n) {
-+					found = 0;
-+				}
-+			}
-+		}
-+	}
-+
-+	return n;
-+}
-+
-+static void yaffs_HashObject(yaffs_Object *in)
-+{
-+	int bucket = yaffs_HashFunction(in->objectId);
-+	yaffs_Device *dev = in->myDev;
-+
-+	ylist_add(&in->hashLink, &dev->objectBucket[bucket].list);
-+	dev->objectBucket[bucket].count++;
-+}
-+
-+yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device *dev, __u32 number)
-+{
-+	int bucket = yaffs_HashFunction(number);
-+	struct ylist_head *i;
-+	yaffs_Object *in;
-+
-+	ylist_for_each(i, &dev->objectBucket[bucket].list) {
-+		/* Look if it is in the list */
-+		if (i) {
-+			in = ylist_entry(i, yaffs_Object, hashLink);
-+			if (in->objectId == number) {
-+#ifdef __KERNEL__
-+				/* Don't tell the VFS about this one if it is defered free */
-+				if (in->deferedFree)
-+					return NULL;
-+#endif
-+
-+				return in;
-+			}
-+		}
-+	}
-+
-+	return NULL;
-+}
-+
-+yaffs_Object *yaffs_CreateNewObject(yaffs_Device *dev, int number,
-+				    yaffs_ObjectType type)
-+{
-+	yaffs_Object *theObject;
-+	yaffs_Tnode *tn = NULL;
-+
-+	if (number < 0)
-+		number = yaffs_CreateNewObjectNumber(dev);
-+
-+	theObject = yaffs_AllocateEmptyObject(dev);
-+	if (!theObject)
-+		return NULL;
-+
-+	if (type == YAFFS_OBJECT_TYPE_FILE) {
-+		tn = yaffs_GetTnode(dev);
-+		if (!tn) {
-+			yaffs_FreeObject(theObject);
-+			return NULL;
-+		}
-+	}
-+
-+	if (theObject) {
-+		theObject->fake = 0;
-+		theObject->renameAllowed = 1;
-+		theObject->unlinkAllowed = 1;
-+		theObject->objectId = number;
-+		yaffs_HashObject(theObject);
-+		theObject->variantType = type;
-+#ifdef CONFIG_YAFFS_WINCE
-+		yfsd_WinFileTimeNow(theObject->win_atime);
-+		theObject->win_ctime[0] = theObject->win_mtime[0] =
-+		    theObject->win_atime[0];
-+		theObject->win_ctime[1] = theObject->win_mtime[1] =
-+		    theObject->win_atime[1];
-+
-+#else
-+
-+		theObject->yst_atime = theObject->yst_mtime =
-+		    theObject->yst_ctime = Y_CURRENT_TIME;
-+#endif
-+		switch (type) {
-+		case YAFFS_OBJECT_TYPE_FILE:
-+			theObject->variant.fileVariant.fileSize = 0;
-+			theObject->variant.fileVariant.scannedFileSize = 0;
-+			theObject->variant.fileVariant.shrinkSize = 0xFFFFFFFF;	/* max __u32 */
-+			theObject->variant.fileVariant.topLevel = 0;
-+			theObject->variant.fileVariant.top = tn;
-+			break;
-+		case YAFFS_OBJECT_TYPE_DIRECTORY:
-+			YINIT_LIST_HEAD(&theObject->variant.directoryVariant.
-+					children);
-+			break;
-+		case YAFFS_OBJECT_TYPE_SYMLINK:
-+		case YAFFS_OBJECT_TYPE_HARDLINK:
-+		case YAFFS_OBJECT_TYPE_SPECIAL:
-+			/* No action required */
-+			break;
-+		case YAFFS_OBJECT_TYPE_UNKNOWN:
-+			/* todo this should not happen */
-+			break;
-+		}
-+	}
-+
-+	return theObject;
-+}
-+
-+static yaffs_Object *yaffs_FindOrCreateObjectByNumber(yaffs_Device *dev,
-+						      int number,
-+						      yaffs_ObjectType type)
-+{
-+	yaffs_Object *theObject = NULL;
-+
-+	if (number > 0)
-+		theObject = yaffs_FindObjectByNumber(dev, number);
-+
-+	if (!theObject)
-+		theObject = yaffs_CreateNewObject(dev, number, type);
-+
-+	return theObject;
-+
-+}
-+
-+
-+static YCHAR *yaffs_CloneString(const YCHAR *str)
-+{
-+	YCHAR *newStr = NULL;
-+
-+	if (str && *str) {
-+		newStr = YMALLOC((yaffs_strlen(str) + 1) * sizeof(YCHAR));
-+		if (newStr)
-+			yaffs_strcpy(newStr, str);
-+	}
-+
-+	return newStr;
-+
-+}
-+
-+/*
-+ * Mknod (create) a new object.
-+ * equivalentObject only has meaning for a hard link;
-+ * aliasString only has meaning for a sumlink.
-+ * rdev only has meaning for devices (a subset of special objects)
-+ */
-+
-+static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type,
-+				       yaffs_Object *parent,
-+				       const YCHAR *name,
-+				       __u32 mode,
-+				       __u32 uid,
-+				       __u32 gid,
-+				       yaffs_Object *equivalentObject,
-+				       const YCHAR *aliasString, __u32 rdev)
-+{
-+	yaffs_Object *in;
-+	YCHAR *str = NULL;
-+
-+	yaffs_Device *dev = parent->myDev;
-+
-+	/* Check if the entry exists. If it does then fail the call since we don't want a dup.*/
-+	if (yaffs_FindObjectByName(parent, name))
-+		return NULL;
-+
-+	in = yaffs_CreateNewObject(dev, -1, type);
-+
-+	if (!in)
-+		return YAFFS_FAIL;
-+
-+	if (type == YAFFS_OBJECT_TYPE_SYMLINK) {
-+		str = yaffs_CloneString(aliasString);
-+		if (!str) {
-+			yaffs_FreeObject(in);
-+			return NULL;
-+		}
-+	}
-+
-+
-+
-+	if (in) {
-+		in->hdrChunk = 0;
-+		in->valid = 1;
-+		in->variantType = type;
-+
-+		in->yst_mode = mode;
-+
-+#ifdef CONFIG_YAFFS_WINCE
-+		yfsd_WinFileTimeNow(in->win_atime);
-+		in->win_ctime[0] = in->win_mtime[0] = in->win_atime[0];
-+		in->win_ctime[1] = in->win_mtime[1] = in->win_atime[1];
-+
-+#else
-+		in->yst_atime = in->yst_mtime = in->yst_ctime = Y_CURRENT_TIME;
-+
-+		in->yst_rdev = rdev;
-+		in->yst_uid = uid;
-+		in->yst_gid = gid;
-+#endif
-+		in->nDataChunks = 0;
-+
-+		yaffs_SetObjectName(in, name);
-+		in->dirty = 1;
-+
-+		yaffs_AddObjectToDirectory(parent, in);
-+
-+		in->myDev = parent->myDev;
-+
-+		switch (type) {
-+		case YAFFS_OBJECT_TYPE_SYMLINK:
-+			in->variant.symLinkVariant.alias = str;
-+			break;
-+		case YAFFS_OBJECT_TYPE_HARDLINK:
-+			in->variant.hardLinkVariant.equivalentObject =
-+				equivalentObject;
-+			in->variant.hardLinkVariant.equivalentObjectId =
-+				equivalentObject->objectId;
-+			ylist_add(&in->hardLinks, &equivalentObject->hardLinks);
-+			break;
-+		case YAFFS_OBJECT_TYPE_FILE:
-+		case YAFFS_OBJECT_TYPE_DIRECTORY:
-+		case YAFFS_OBJECT_TYPE_SPECIAL:
-+		case YAFFS_OBJECT_TYPE_UNKNOWN:
-+			/* do nothing */
-+			break;
-+		}
-+
-+		if (yaffs_UpdateObjectHeader(in, name, 0, 0, 0) < 0) {
-+			/* Could not create the object header, fail the creation */
-+			yaffs_DeleteObject(in);
-+			in = NULL;
-+		}
-+
-+	}
-+
-+	return in;
-+}
-+
-+yaffs_Object *yaffs_MknodFile(yaffs_Object *parent, const YCHAR *name,
-+			__u32 mode, __u32 uid, __u32 gid)
-+{
-+	return yaffs_MknodObject(YAFFS_OBJECT_TYPE_FILE, parent, name, mode,
-+				uid, gid, NULL, NULL, 0);
-+}
-+
-+yaffs_Object *yaffs_MknodDirectory(yaffs_Object *parent, const YCHAR *name,
-+				__u32 mode, __u32 uid, __u32 gid)
-+{
-+	return yaffs_MknodObject(YAFFS_OBJECT_TYPE_DIRECTORY, parent, name,
-+				 mode, uid, gid, NULL, NULL, 0);
-+}
-+
-+yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name,
-+				__u32 mode, __u32 uid, __u32 gid, __u32 rdev)
-+{
-+	return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SPECIAL, parent, name, mode,
-+				 uid, gid, NULL, NULL, rdev);
-+}
-+
-+yaffs_Object *yaffs_MknodSymLink(yaffs_Object *parent, const YCHAR *name,
-+				__u32 mode, __u32 uid, __u32 gid,
-+				const YCHAR *alias)
-+{
-+	return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SYMLINK, parent, name, mode,
-+				uid, gid, NULL, alias, 0);
-+}
-+
-+/* yaffs_Link returns the object id of the equivalent object.*/
-+yaffs_Object *yaffs_Link(yaffs_Object *parent, const YCHAR *name,
-+			yaffs_Object *equivalentObject)
-+{
-+	/* Get the real object in case we were fed a hard link as an equivalent object */
-+	equivalentObject = yaffs_GetEquivalentObject(equivalentObject);
-+
-+	if (yaffs_MknodObject
-+	    (YAFFS_OBJECT_TYPE_HARDLINK, parent, name, 0, 0, 0,
-+	     equivalentObject, NULL, 0)) {
-+		return equivalentObject;
-+	} else {
-+		return NULL;
-+	}
-+
-+}
-+
-+static int yaffs_ChangeObjectName(yaffs_Object *obj, yaffs_Object *newDir,
-+				const YCHAR *newName, int force, int shadows)
-+{
-+	int unlinkOp;
-+	int deleteOp;
-+
-+	yaffs_Object *existingTarget;
-+
-+	if (newDir == NULL)
-+		newDir = obj->parent;	/* use the old directory */
-+
-+	if (newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
-+		T(YAFFS_TRACE_ALWAYS,
-+		  (TSTR
-+		   ("tragedy: yaffs_ChangeObjectName: newDir is not a directory"
-+		    TENDSTR)));
-+		YBUG();
-+	}
-+
-+	/* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */
-+	if (obj->myDev->isYaffs2)
-+		unlinkOp = (newDir == obj->myDev->unlinkedDir);
-+	else
-+		unlinkOp = (newDir == obj->myDev->unlinkedDir
-+			    && obj->variantType == YAFFS_OBJECT_TYPE_FILE);
-+
-+	deleteOp = (newDir == obj->myDev->deletedDir);
-+
-+	existingTarget = yaffs_FindObjectByName(newDir, newName);
-+
-+	/* If the object is a file going into the unlinked directory,
-+	 *   then it is OK to just stuff it in since duplicate names are allowed.
-+	 *   else only proceed if the new name does not exist and if we're putting
-+	 *   it into a directory.
-+	 */
-+	if ((unlinkOp ||
-+	     deleteOp ||
-+	     force ||
-+	     (shadows > 0) ||
-+	     !existingTarget) &&
-+	    newDir->variantType == YAFFS_OBJECT_TYPE_DIRECTORY) {
-+		yaffs_SetObjectName(obj, newName);
-+		obj->dirty = 1;
-+
-+		yaffs_AddObjectToDirectory(newDir, obj);
-+
-+		if (unlinkOp)
-+			obj->unlinked = 1;
-+
-+		/* If it is a deletion then we mark it as a shrink for gc purposes. */
-+		if (yaffs_UpdateObjectHeader(obj, newName, 0, deleteOp, shadows) >= 0)
-+			return YAFFS_OK;
-+	}
-+
-+	return YAFFS_FAIL;
-+}
-+
-+int yaffs_RenameObject(yaffs_Object *oldDir, const YCHAR *oldName,
-+		yaffs_Object *newDir, const YCHAR *newName)
-+{
-+	yaffs_Object *obj = NULL;
-+	yaffs_Object *existingTarget = NULL;
-+	int force = 0;
-+
-+
-+	if (!oldDir || oldDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY)
-+		YBUG();
-+	if (!newDir || newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY)
-+		YBUG();
-+
-+#ifdef CONFIG_YAFFS_CASE_INSENSITIVE
-+	/* Special case for case insemsitive systems (eg. WinCE).
-+	 * While look-up is case insensitive, the name isn't.
-+	 * Therefore we might want to change x.txt to X.txt
-+	*/
-+	if (oldDir == newDir && yaffs_strcmp(oldName, newName) == 0)
-+		force = 1;
-+#endif
-+
-+	else if (yaffs_strlen(newName) > YAFFS_MAX_NAME_LENGTH)
-+		/* ENAMETOOLONG */
-+		return YAFFS_FAIL;
-+
-+	obj = yaffs_FindObjectByName(oldDir, oldName);
-+
-+	if (obj && obj->renameAllowed) {
-+
-+		/* Now do the handling for an existing target, if there is one */
-+
-+		existingTarget = yaffs_FindObjectByName(newDir, newName);
-+		if (existingTarget &&
-+			existingTarget->variantType == YAFFS_OBJECT_TYPE_DIRECTORY &&
-+			!ylist_empty(&existingTarget->variant.directoryVariant.children)) {
-+			/* There is a target that is a non-empty directory, so we fail */
-+			return YAFFS_FAIL;	/* EEXIST or ENOTEMPTY */
-+		} else if (existingTarget && existingTarget != obj) {
-+			/* Nuke the target first, using shadowing,
-+			 * but only if it isn't the same object
-+			 */
-+			yaffs_ChangeObjectName(obj, newDir, newName, force,
-+						existingTarget->objectId);
-+			yaffs_UnlinkObject(existingTarget);
-+		}
-+
-+		return yaffs_ChangeObjectName(obj, newDir, newName, 1, 0);
-+	}
-+	return YAFFS_FAIL;
-+}
-+
-+/*------------------------- Block Management and Page Allocation ----------------*/
-+
-+static int yaffs_InitialiseBlocks(yaffs_Device *dev)
-+{
-+	int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1;
-+
-+	dev->blockInfo = NULL;
-+	dev->chunkBits = NULL;
-+
-+	dev->allocationBlock = -1;	/* force it to get a new one */
-+
-+	/* If the first allocation strategy fails, thry the alternate one */
-+	dev->blockInfo = YMALLOC(nBlocks * sizeof(yaffs_BlockInfo));
-+	if (!dev->blockInfo) {
-+		dev->blockInfo = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockInfo));
-+		dev->blockInfoAlt = 1;
-+	} else
-+		dev->blockInfoAlt = 0;
-+
-+	if (dev->blockInfo) {
-+		/* Set up dynamic blockinfo stuff. */
-+		dev->chunkBitmapStride = (dev->nChunksPerBlock + 7) / 8; /* round up bytes */
-+		dev->chunkBits = YMALLOC(dev->chunkBitmapStride * nBlocks);
-+		if (!dev->chunkBits) {
-+			dev->chunkBits = YMALLOC_ALT(dev->chunkBitmapStride * nBlocks);
-+			dev->chunkBitsAlt = 1;
-+		} else
-+			dev->chunkBitsAlt = 0;
-+	}
-+
-+	if (dev->blockInfo && dev->chunkBits) {
-+		memset(dev->blockInfo, 0, nBlocks * sizeof(yaffs_BlockInfo));
-+		memset(dev->chunkBits, 0, dev->chunkBitmapStride * nBlocks);
-+		return YAFFS_OK;
-+	}
-+
-+	return YAFFS_FAIL;
-+}
-+
-+static void yaffs_DeinitialiseBlocks(yaffs_Device *dev)
-+{
-+	if (dev->blockInfoAlt && dev->blockInfo)
-+		YFREE_ALT(dev->blockInfo);
-+	else if (dev->blockInfo)
-+		YFREE(dev->blockInfo);
-+
-+	dev->blockInfoAlt = 0;
-+
-+	dev->blockInfo = NULL;
-+
-+	if (dev->chunkBitsAlt && dev->chunkBits)
-+		YFREE_ALT(dev->chunkBits);
-+	else if (dev->chunkBits)
-+		YFREE(dev->chunkBits);
-+	dev->chunkBitsAlt = 0;
-+	dev->chunkBits = NULL;
-+}
-+
-+static int yaffs_BlockNotDisqualifiedFromGC(yaffs_Device *dev,
-+					yaffs_BlockInfo *bi)
-+{
-+	int i;
-+	__u32 seq;
-+	yaffs_BlockInfo *b;
-+
-+	if (!dev->isYaffs2)
-+		return 1;	/* disqualification only applies to yaffs2. */
-+
-+	if (!bi->hasShrinkHeader)
-+		return 1;	/* can gc */
-+
-+	/* Find the oldest dirty sequence number if we don't know it and save it
-+	 * so we don't have to keep recomputing it.
-+	 */
-+	if (!dev->oldestDirtySequence) {
-+		seq = dev->sequenceNumber;
-+
-+		for (i = dev->internalStartBlock; i <= dev->internalEndBlock;
-+				i++) {
-+			b = yaffs_GetBlockInfo(dev, i);
-+			if (b->blockState == YAFFS_BLOCK_STATE_FULL &&
-+			    (b->pagesInUse - b->softDeletions) <
-+			    dev->nChunksPerBlock && b->sequenceNumber < seq) {
-+				seq = b->sequenceNumber;
-+			}
-+		}
-+		dev->oldestDirtySequence = seq;
-+	}
-+
-+	/* Can't do gc of this block if there are any blocks older than this one that have
-+	 * discarded pages.
-+	 */
-+	return (bi->sequenceNumber <= dev->oldestDirtySequence);
-+}
-+
-+/* FindDiretiestBlock is used to select the dirtiest block (or close enough)
-+ * for garbage collection.
-+ */
-+
-+static int yaffs_FindBlockForGarbageCollection(yaffs_Device *dev,
-+					int aggressive)
-+{
-+	int b = dev->currentDirtyChecker;
-+
-+	int i;
-+	int iterations;
-+	int dirtiest = -1;
-+	int pagesInUse = 0;
-+	int prioritised = 0;
-+	yaffs_BlockInfo *bi;
-+	int pendingPrioritisedExist = 0;
-+
-+	/* First let's see if we need to grab a prioritised block */
-+	if (dev->hasPendingPrioritisedGCs) {
-+		for (i = dev->internalStartBlock; i < dev->internalEndBlock && !prioritised; i++) {
-+
-+			bi = yaffs_GetBlockInfo(dev, i);
-+			/* yaffs_VerifyBlock(dev,bi,i); */
-+
-+			if (bi->gcPrioritise) {
-+				pendingPrioritisedExist = 1;
-+				if (bi->blockState == YAFFS_BLOCK_STATE_FULL &&
-+				   yaffs_BlockNotDisqualifiedFromGC(dev, bi)) {
-+					pagesInUse = (bi->pagesInUse - bi->softDeletions);
-+					dirtiest = i;
-+					prioritised = 1;
-+					aggressive = 1; /* Fool the non-aggressive skip logiv below */
-+				}
-+			}
-+		}
-+
-+		if (!pendingPrioritisedExist) /* None found, so we can clear this */
-+			dev->hasPendingPrioritisedGCs = 0;
-+	}
-+
-+	/* If we're doing aggressive GC then we are happy to take a less-dirty block, and
-+	 * search harder.
-+	 * else (we're doing a leasurely gc), then we only bother to do this if the
-+	 * block has only a few pages in use.
-+	 */
-+
-+	dev->nonAggressiveSkip--;
-+
-+	if (!aggressive && (dev->nonAggressiveSkip > 0))
-+		return -1;
-+
-+	if (!prioritised)
-+		pagesInUse =
-+			(aggressive) ? dev->nChunksPerBlock : YAFFS_PASSIVE_GC_CHUNKS + 1;
-+
-+	if (aggressive)
-+		iterations =
-+		    dev->internalEndBlock - dev->internalStartBlock + 1;
-+	else {
-+		iterations =
-+		    dev->internalEndBlock - dev->internalStartBlock + 1;
-+		iterations = iterations / 16;
-+		if (iterations > 200)
-+			iterations = 200;
-+	}
-+
-+	for (i = 0; i <= iterations && pagesInUse > 0 && !prioritised; i++) {
-+		b++;
-+		if (b < dev->internalStartBlock || b > dev->internalEndBlock)
-+			b = dev->internalStartBlock;
-+
-+		if (b < dev->internalStartBlock || b > dev->internalEndBlock) {
-+			T(YAFFS_TRACE_ERROR,
-+			  (TSTR("**>> Block %d is not valid" TENDSTR), b));
-+			YBUG();
-+		}
-+
-+		bi = yaffs_GetBlockInfo(dev, b);
-+
-+		if (bi->blockState == YAFFS_BLOCK_STATE_FULL &&
-+			(bi->pagesInUse - bi->softDeletions) < pagesInUse &&
-+				yaffs_BlockNotDisqualifiedFromGC(dev, bi)) {
-+			dirtiest = b;
-+			pagesInUse = (bi->pagesInUse - bi->softDeletions);
-+		}
-+	}
-+
-+	dev->currentDirtyChecker = b;
-+
-+	if (dirtiest > 0) {
-+		T(YAFFS_TRACE_GC,
-+		  (TSTR("GC Selected block %d with %d free, prioritised:%d" TENDSTR), dirtiest,
-+		   dev->nChunksPerBlock - pagesInUse, prioritised));
-+	}
-+
-+	dev->oldestDirtySequence = 0;
-+
-+	if (dirtiest > 0)
-+		dev->nonAggressiveSkip = 4;
-+
-+	return dirtiest;
-+}
-+
-+static void yaffs_BlockBecameDirty(yaffs_Device *dev, int blockNo)
-+{
-+	yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockNo);
-+
-+	int erasedOk = 0;
-+
-+	/* If the block is still healthy erase it and mark as clean.
-+	 * If the block has had a data failure, then retire it.
-+	 */
-+
-+	T(YAFFS_TRACE_GC | YAFFS_TRACE_ERASE,
-+		(TSTR("yaffs_BlockBecameDirty block %d state %d %s"TENDSTR),
-+		blockNo, bi->blockState, (bi->needsRetiring) ? "needs retiring" : ""));
-+
-+	bi->blockState = YAFFS_BLOCK_STATE_DIRTY;
-+
-+	if (!bi->needsRetiring) {
-+		yaffs_InvalidateCheckpoint(dev);
-+		erasedOk = yaffs_EraseBlockInNAND(dev, blockNo);
-+		if (!erasedOk) {
-+			dev->nErasureFailures++;
-+			T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
-+			  (TSTR("**>> Erasure failed %d" TENDSTR), blockNo));
-+		}
-+	}
-+
-+	if (erasedOk &&
-+	    ((yaffs_traceMask & YAFFS_TRACE_ERASE) || !yaffs_SkipVerification(dev))) {
-+		int i;
-+		for (i = 0; i < dev->nChunksPerBlock; i++) {
-+			if (!yaffs_CheckChunkErased
-+			    (dev, blockNo * dev->nChunksPerBlock + i)) {
-+				T(YAFFS_TRACE_ERROR,
-+				  (TSTR
-+				   (">>Block %d erasure supposedly OK, but chunk %d not erased"
-+				    TENDSTR), blockNo, i));
-+			}
-+		}
-+	}
-+
-+	if (erasedOk) {
-+		/* Clean it up... */
-+		bi->blockState = YAFFS_BLOCK_STATE_EMPTY;
-+		dev->nErasedBlocks++;
-+		bi->pagesInUse = 0;
-+		bi->softDeletions = 0;
-+		bi->hasShrinkHeader = 0;
-+		bi->skipErasedCheck = 1;  /* This is clean, so no need to check */
-+		bi->gcPrioritise = 0;
-+		yaffs_ClearChunkBits(dev, blockNo);
-+
-+		T(YAFFS_TRACE_ERASE,
-+		  (TSTR("Erased block %d" TENDSTR), blockNo));
-+	} else {
-+		dev->nFreeChunks -= dev->nChunksPerBlock;	/* We lost a block of free space */
-+
-+		yaffs_RetireBlock(dev, blockNo);
-+		T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
-+		  (TSTR("**>> Block %d retired" TENDSTR), blockNo));
-+	}
-+}
-+
-+static int yaffs_FindBlockForAllocation(yaffs_Device *dev)
-+{
-+	int i;
-+
-+	yaffs_BlockInfo *bi;
-+
-+	if (dev->nErasedBlocks < 1) {
-+		/* Hoosterman we've got a problem.
-+		 * Can't get space to gc
-+		 */
-+		T(YAFFS_TRACE_ERROR,
-+		  (TSTR("yaffs tragedy: no more erased blocks" TENDSTR)));
-+
-+		return -1;
-+	}
-+
-+	/* Find an empty block. */
-+
-+	for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) {
-+		dev->allocationBlockFinder++;
-+		if (dev->allocationBlockFinder < dev->internalStartBlock
-+		    || dev->allocationBlockFinder > dev->internalEndBlock) {
-+			dev->allocationBlockFinder = dev->internalStartBlock;
-+		}
-+
-+		bi = yaffs_GetBlockInfo(dev, dev->allocationBlockFinder);
-+
-+		if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY) {
-+			bi->blockState = YAFFS_BLOCK_STATE_ALLOCATING;
-+			dev->sequenceNumber++;
-+			bi->sequenceNumber = dev->sequenceNumber;
-+			dev->nErasedBlocks--;
-+			T(YAFFS_TRACE_ALLOCATE,
-+			  (TSTR("Allocated block %d, seq  %d, %d left" TENDSTR),
-+			   dev->allocationBlockFinder, dev->sequenceNumber,
-+			   dev->nErasedBlocks));
-+			return dev->allocationBlockFinder;
-+		}
-+	}
-+
-+	T(YAFFS_TRACE_ALWAYS,
-+	  (TSTR
-+	   ("yaffs tragedy: no more erased blocks, but there should have been %d"
-+	    TENDSTR), dev->nErasedBlocks));
-+
-+	return -1;
-+}
-+
-+
-+
-+static int yaffs_CalcCheckpointBlocksRequired(yaffs_Device *dev)
-+{
-+	if (!dev->nCheckpointBlocksRequired &&
-+	   dev->isYaffs2) {
-+		/* Not a valid value so recalculate */
-+		int nBytes = 0;
-+		int nBlocks;
-+		int devBlocks = (dev->endBlock - dev->startBlock + 1);
-+		int tnodeSize;
-+
-+		tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
-+
-+		if (tnodeSize < sizeof(yaffs_Tnode))
-+			tnodeSize = sizeof(yaffs_Tnode);
-+
-+		nBytes += sizeof(yaffs_CheckpointValidity);
-+		nBytes += sizeof(yaffs_CheckpointDevice);
-+		nBytes += devBlocks * sizeof(yaffs_BlockInfo);
-+		nBytes += devBlocks * dev->chunkBitmapStride;
-+		nBytes += (sizeof(yaffs_CheckpointObject) + sizeof(__u32)) * (dev->nObjectsCreated - dev->nFreeObjects);
-+		nBytes += (tnodeSize + sizeof(__u32)) * (dev->nTnodesCreated - dev->nFreeTnodes);
-+		nBytes += sizeof(yaffs_CheckpointValidity);
-+		nBytes += sizeof(__u32); /* checksum*/
-+
-+		/* Round up and add 2 blocks to allow for some bad blocks, so add 3 */
-+
-+		nBlocks = (nBytes/(dev->nDataBytesPerChunk * dev->nChunksPerBlock)) + 3;
-+
-+		dev->nCheckpointBlocksRequired = nBlocks;
-+	}
-+
-+	return dev->nCheckpointBlocksRequired;
-+}
-+
-+/*
-+ * Check if there's space to allocate...
-+ * Thinks.... do we need top make this ths same as yaffs_GetFreeChunks()?
-+ */
-+static int yaffs_CheckSpaceForAllocation(yaffs_Device *dev)
-+{
-+	int reservedChunks;
-+	int reservedBlocks = dev->nReservedBlocks;
-+	int checkpointBlocks;
-+
-+	if (dev->isYaffs2) {
-+		checkpointBlocks =  yaffs_CalcCheckpointBlocksRequired(dev) -
-+				    dev->blocksInCheckpoint;
-+		if (checkpointBlocks < 0)
-+			checkpointBlocks = 0;
-+	} else {
-+		checkpointBlocks = 0;
-+	}
-+
-+	reservedChunks = ((reservedBlocks + checkpointBlocks) * dev->nChunksPerBlock);
-+
-+	return (dev->nFreeChunks > reservedChunks);
-+}
-+
-+static int yaffs_AllocateChunk(yaffs_Device *dev, int useReserve,
-+		yaffs_BlockInfo **blockUsedPtr)
-+{
-+	int retVal;
-+	yaffs_BlockInfo *bi;
-+
-+	if (dev->allocationBlock < 0) {
-+		/* Get next block to allocate off */
-+		dev->allocationBlock = yaffs_FindBlockForAllocation(dev);
-+		dev->allocationPage = 0;
-+	}
-+
-+	if (!useReserve && !yaffs_CheckSpaceForAllocation(dev)) {
-+		/* Not enough space to allocate unless we're allowed to use the reserve. */
-+		return -1;
-+	}
-+
-+	if (dev->nErasedBlocks < dev->nReservedBlocks
-+			&& dev->allocationPage == 0) {
-+		T(YAFFS_TRACE_ALLOCATE, (TSTR("Allocating reserve" TENDSTR)));
-+	}
-+
-+	/* Next page please.... */
-+	if (dev->allocationBlock >= 0) {
-+		bi = yaffs_GetBlockInfo(dev, dev->allocationBlock);
-+
-+		retVal = (dev->allocationBlock * dev->nChunksPerBlock) +
-+			dev->allocationPage;
-+		bi->pagesInUse++;
-+		yaffs_SetChunkBit(dev, dev->allocationBlock,
-+				dev->allocationPage);
-+
-+		dev->allocationPage++;
-+
-+		dev->nFreeChunks--;
-+
-+		/* If the block is full set the state to full */
-+		if (dev->allocationPage >= dev->nChunksPerBlock) {
-+			bi->blockState = YAFFS_BLOCK_STATE_FULL;
-+			dev->allocationBlock = -1;
-+		}
-+
-+		if (blockUsedPtr)
-+			*blockUsedPtr = bi;
-+
-+		return retVal;
-+	}
-+
-+	T(YAFFS_TRACE_ERROR,
-+			(TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR)));
-+
-+	return -1;
-+}
-+
-+static int yaffs_GetErasedChunks(yaffs_Device *dev)
-+{
-+	int n;
-+
-+	n = dev->nErasedBlocks * dev->nChunksPerBlock;
-+
-+	if (dev->allocationBlock > 0)
-+		n += (dev->nChunksPerBlock - dev->allocationPage);
-+
-+	return n;
-+
-+}
-+
-+static int yaffs_GarbageCollectBlock(yaffs_Device *dev, int block,
-+		int wholeBlock)
-+{
-+	int oldChunk;
-+	int newChunk;
-+	int markNAND;
-+	int retVal = YAFFS_OK;
-+	int cleanups = 0;
-+	int i;
-+	int isCheckpointBlock;
-+	int matchingChunk;
-+	int maxCopies;
-+
-+	int chunksBefore = yaffs_GetErasedChunks(dev);
-+	int chunksAfter;
-+
-+	yaffs_ExtendedTags tags;
-+
-+	yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, block);
-+
-+	yaffs_Object *object;
-+
-+	isCheckpointBlock = (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT);
-+
-+	bi->blockState = YAFFS_BLOCK_STATE_COLLECTING;
-+
-+	T(YAFFS_TRACE_TRACING,
-+			(TSTR("Collecting block %d, in use %d, shrink %d, wholeBlock %d" TENDSTR),
-+			 block,
-+			 bi->pagesInUse,
-+			 bi->hasShrinkHeader,
-+			 wholeBlock));
-+
-+	/*yaffs_VerifyFreeChunks(dev); */
-+
-+	bi->hasShrinkHeader = 0;	/* clear the flag so that the block can erase */
-+
-+	/* Take off the number of soft deleted entries because
-+	 * they're going to get really deleted during GC.
-+	 */
-+	dev->nFreeChunks -= bi->softDeletions;
-+
-+	dev->isDoingGC = 1;
-+
-+	if (isCheckpointBlock ||
-+			!yaffs_StillSomeChunkBits(dev, block)) {
-+		T(YAFFS_TRACE_TRACING,
-+				(TSTR
-+				 ("Collecting block %d that has no chunks in use" TENDSTR),
-+				 block));
-+		yaffs_BlockBecameDirty(dev, block);
-+	} else {
-+
-+		__u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__);
-+
-+		yaffs_VerifyBlock(dev, bi, block);
-+
-+		maxCopies = (wholeBlock) ? dev->nChunksPerBlock : 10;
-+		oldChunk = block * dev->nChunksPerBlock + dev->gcChunk;
-+
-+		for (/* init already done */;
-+		     retVal == YAFFS_OK &&
-+		     dev->gcChunk < dev->nChunksPerBlock &&
-+		     (bi->blockState == YAFFS_BLOCK_STATE_COLLECTING) &&
-+		     maxCopies > 0;
-+		     dev->gcChunk++, oldChunk++) {
-+			if (yaffs_CheckChunkBit(dev, block, dev->gcChunk)) {
-+
-+				/* This page is in use and might need to be copied off */
-+
-+				maxCopies--;
-+
-+				markNAND = 1;
-+
-+				yaffs_InitialiseTags(&tags);
-+
-+				yaffs_ReadChunkWithTagsFromNAND(dev, oldChunk,
-+								buffer, &tags);
-+
-+				object =
-+				    yaffs_FindObjectByNumber(dev,
-+							     tags.objectId);
-+
-+				T(YAFFS_TRACE_GC_DETAIL,
-+				  (TSTR
-+				   ("Collecting chunk in block %d, %d %d %d " TENDSTR),
-+				   dev->gcChunk, tags.objectId, tags.chunkId,
-+				   tags.byteCount));
-+
-+				if (object && !yaffs_SkipVerification(dev)) {
-+					if (tags.chunkId == 0)
-+						matchingChunk = object->hdrChunk;
-+					else if (object->softDeleted)
-+						matchingChunk = oldChunk; /* Defeat the test */
-+					else
-+						matchingChunk = yaffs_FindChunkInFile(object, tags.chunkId, NULL);
-+
-+					if (oldChunk != matchingChunk)
-+						T(YAFFS_TRACE_ERROR,
-+						  (TSTR("gc: page in gc mismatch: %d %d %d %d"TENDSTR),
-+						  oldChunk, matchingChunk, tags.objectId, tags.chunkId));
-+
-+				}
-+
-+				if (!object) {
-+					T(YAFFS_TRACE_ERROR,
-+					  (TSTR
-+					   ("page %d in gc has no object: %d %d %d "
-+					    TENDSTR), oldChunk,
-+					    tags.objectId, tags.chunkId, tags.byteCount));
-+				}
-+
-+				if (object &&
-+				    object->deleted &&
-+				    object->softDeleted &&
-+				    tags.chunkId != 0) {
-+					/* Data chunk in a soft deleted file, throw it away
-+					 * It's a soft deleted data chunk,
-+					 * No need to copy this, just forget about it and
-+					 * fix up the object.
-+					 */
-+
-+					object->nDataChunks--;
-+
-+					if (object->nDataChunks <= 0) {
-+						/* remeber to clean up the object */
-+						dev->gcCleanupList[cleanups] =
-+						    tags.objectId;
-+						cleanups++;
-+					}
-+					markNAND = 0;
-+				} else if (0) {
-+					/* Todo object && object->deleted && object->nDataChunks == 0 */
-+					/* Deleted object header with no data chunks.
-+					 * Can be discarded and the file deleted.
-+					 */
-+					object->hdrChunk = 0;
-+					yaffs_FreeTnode(object->myDev,
-+							object->variant.
-+							fileVariant.top);
-+					object->variant.fileVariant.top = NULL;
-+					yaffs_DoGenericObjectDeletion(object);
-+
-+				} else if (object) {
-+					/* It's either a data chunk in a live file or
-+					 * an ObjectHeader, so we're interested in it.
-+					 * NB Need to keep the ObjectHeaders of deleted files
-+					 * until the whole file has been deleted off
-+					 */
-+					tags.serialNumber++;
-+
-+					dev->nGCCopies++;
-+
-+					if (tags.chunkId == 0) {
-+						/* It is an object Id,
-+						 * We need to nuke the shrinkheader flags first
-+						 * We no longer want the shrinkHeader flag since its work is done
-+						 * and if it is left in place it will mess up scanning.
-+						 */
-+
-+						yaffs_ObjectHeader *oh;
-+						oh = (yaffs_ObjectHeader *)buffer;
-+						oh->isShrink = 0;
-+						tags.extraIsShrinkHeader = 0;
-+
-+						yaffs_VerifyObjectHeader(object, oh, &tags, 1);
-+					}
-+
-+					newChunk =
-+					    yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &tags, 1);
-+
-+					if (newChunk < 0) {
-+						retVal = YAFFS_FAIL;
-+					} else {
-+
-+						/* Ok, now fix up the Tnodes etc. */
-+
-+						if (tags.chunkId == 0) {
-+							/* It's a header */
-+							object->hdrChunk =  newChunk;
-+							object->serial =   tags.serialNumber;
-+						} else {
-+							/* It's a data chunk */
-+							yaffs_PutChunkIntoFile
-+							    (object,
-+							     tags.chunkId,
-+							     newChunk, 0);
-+						}
-+					}
-+				}
-+
-+				if (retVal == YAFFS_OK)
-+					yaffs_DeleteChunk(dev, oldChunk, markNAND, __LINE__);
-+
-+			}
-+		}
-+
-+		yaffs_ReleaseTempBuffer(dev, buffer, __LINE__);
-+
-+
-+		/* Do any required cleanups */
-+		for (i = 0; i < cleanups; i++) {
-+			/* Time to delete the file too */
-+			object =
-+			    yaffs_FindObjectByNumber(dev,
-+						     dev->gcCleanupList[i]);
-+			if (object) {
-+				yaffs_FreeTnode(dev,
-+						object->variant.fileVariant.
-+						top);
-+				object->variant.fileVariant.top = NULL;
-+				T(YAFFS_TRACE_GC,
-+				  (TSTR
-+				   ("yaffs: About to finally delete object %d"
-+				    TENDSTR), object->objectId));
-+				yaffs_DoGenericObjectDeletion(object);
-+				object->myDev->nDeletedFiles--;
-+			}
-+
-+		}
-+
-+	}
-+
-+	yaffs_VerifyCollectedBlock(dev, bi, block);
-+
-+	chunksAfter = yaffs_GetErasedChunks(dev);
-+	if (chunksBefore >= chunksAfter) {
-+		T(YAFFS_TRACE_GC,
-+		  (TSTR
-+		   ("gc did not increase free chunks before %d after %d"
-+		    TENDSTR), chunksBefore, chunksAfter));
-+	}
-+
-+	/* If the gc completed then clear the current gcBlock so that we find another. */
-+	if (bi->blockState != YAFFS_BLOCK_STATE_COLLECTING) {
-+		dev->gcBlock = -1;
-+		dev->gcChunk = 0;
-+	}
-+
-+	dev->isDoingGC = 0;
-+
-+	return retVal;
-+}
-+
-+/* New garbage collector
-+ * If we're very low on erased blocks then we do aggressive garbage collection
-+ * otherwise we do "leasurely" garbage collection.
-+ * Aggressive gc looks further (whole array) and will accept less dirty blocks.
-+ * Passive gc only inspects smaller areas and will only accept more dirty blocks.
-+ *
-+ * The idea is to help clear out space in a more spread-out manner.
-+ * Dunno if it really does anything useful.
-+ */
-+static int yaffs_CheckGarbageCollection(yaffs_Device *dev)
-+{
-+	int block;
-+	int aggressive;
-+	int gcOk = YAFFS_OK;
-+	int maxTries = 0;
-+
-+	int checkpointBlockAdjust;
-+
-+	if (dev->isDoingGC) {
-+		/* Bail out so we don't get recursive gc */
-+		return YAFFS_OK;
-+	}
-+
-+	/* This loop should pass the first time.
-+	 * We'll only see looping here if the erase of the collected block fails.
-+	 */
-+
-+	do {
-+		maxTries++;
-+
-+		checkpointBlockAdjust = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint;
-+		if (checkpointBlockAdjust < 0)
-+			checkpointBlockAdjust = 0;
-+
-+		if (dev->nErasedBlocks < (dev->nReservedBlocks + checkpointBlockAdjust + 2)) {
-+			/* We need a block soon...*/
-+			aggressive = 1;
-+		} else {
-+			/* We're in no hurry */
-+			aggressive = 0;
-+		}
-+
-+		if (dev->gcBlock <= 0) {
-+			dev->gcBlock = yaffs_FindBlockForGarbageCollection(dev, aggressive);
-+			dev->gcChunk = 0;
-+		}
-+
-+		block = dev->gcBlock;
-+
-+		if (block > 0) {
-+			dev->garbageCollections++;
-+			if (!aggressive)
-+				dev->passiveGarbageCollections++;
-+
-+			T(YAFFS_TRACE_GC,
-+			  (TSTR
-+			   ("yaffs: GC erasedBlocks %d aggressive %d" TENDSTR),
-+			   dev->nErasedBlocks, aggressive));
-+
-+			gcOk = yaffs_GarbageCollectBlock(dev, block, aggressive);
-+		}
-+
-+		if (dev->nErasedBlocks < (dev->nReservedBlocks) && block > 0) {
-+			T(YAFFS_TRACE_GC,
-+			  (TSTR
-+			   ("yaffs: GC !!!no reclaim!!! erasedBlocks %d after try %d block %d"
-+			    TENDSTR), dev->nErasedBlocks, maxTries, block));
-+		}
-+	} while ((dev->nErasedBlocks < dev->nReservedBlocks) &&
-+		 (block > 0) &&
-+		 (maxTries < 2));
-+
-+	return aggressive ? gcOk : YAFFS_OK;
-+}
-+
-+/*-------------------------  TAGS --------------------------------*/
-+
-+static int yaffs_TagsMatch(const yaffs_ExtendedTags *tags, int objectId,
-+			   int chunkInObject)
-+{
-+	return (tags->chunkId == chunkInObject &&
-+		tags->objectId == objectId && !tags->chunkDeleted) ? 1 : 0;
-+
-+}
-+
-+
-+/*-------------------- Data file manipulation -----------------*/
-+
-+static int yaffs_FindChunkInFile(yaffs_Object *in, int chunkInInode,
-+				 yaffs_ExtendedTags *tags)
-+{
-+	/*Get the Tnode, then get the level 0 offset chunk offset */
-+	yaffs_Tnode *tn;
-+	int theChunk = -1;
-+	yaffs_ExtendedTags localTags;
-+	int retVal = -1;
-+
-+	yaffs_Device *dev = in->myDev;
-+
-+	if (!tags) {
-+		/* Passed a NULL, so use our own tags space */
-+		tags = &localTags;
-+	}
-+
-+	tn = yaffs_FindLevel0Tnode(dev, &in->variant.fileVariant, chunkInInode);
-+
-+	if (tn) {
-+		theChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode);
-+
-+		retVal =
-+		    yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId,
-+					   chunkInInode);
-+	}
-+	return retVal;
-+}
-+
-+static int yaffs_FindAndDeleteChunkInFile(yaffs_Object *in, int chunkInInode,
-+					  yaffs_ExtendedTags *tags)
-+{
-+	/* Get the Tnode, then get the level 0 offset chunk offset */
-+	yaffs_Tnode *tn;
-+	int theChunk = -1;
-+	yaffs_ExtendedTags localTags;
-+
-+	yaffs_Device *dev = in->myDev;
-+	int retVal = -1;
-+
-+	if (!tags) {
-+		/* Passed a NULL, so use our own tags space */
-+		tags = &localTags;
-+	}
-+
-+	tn = yaffs_FindLevel0Tnode(dev, &in->variant.fileVariant, chunkInInode);
-+
-+	if (tn) {
-+
-+		theChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode);
-+
-+		retVal =
-+		    yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId,
-+					   chunkInInode);
-+
-+		/* Delete the entry in the filestructure (if found) */
-+		if (retVal != -1)
-+			yaffs_PutLevel0Tnode(dev, tn, chunkInInode, 0);
-+	}
-+
-+	return retVal;
-+}
-+
-+#ifdef YAFFS_PARANOID
-+
-+static int yaffs_CheckFileSanity(yaffs_Object *in)
-+{
-+	int chunk;
-+	int nChunks;
-+	int fSize;
-+	int failed = 0;
-+	int objId;
-+	yaffs_Tnode *tn;
-+	yaffs_Tags localTags;
-+	yaffs_Tags *tags = &localTags;
-+	int theChunk;
-+	int chunkDeleted;
-+
-+	if (in->variantType != YAFFS_OBJECT_TYPE_FILE)
-+		return YAFFS_FAIL;
-+
-+	objId = in->objectId;
-+	fSize = in->variant.fileVariant.fileSize;
-+	nChunks =
-+	    (fSize + in->myDev->nDataBytesPerChunk - 1) / in->myDev->nDataBytesPerChunk;
-+
-+	for (chunk = 1; chunk <= nChunks; chunk++) {
-+		tn = yaffs_FindLevel0Tnode(in->myDev, &in->variant.fileVariant,
-+					   chunk);
-+
-+		if (tn) {
-+
-+			theChunk = yaffs_GetChunkGroupBase(dev, tn, chunk);
-+
-+			if (yaffs_CheckChunkBits
-+			    (dev, theChunk / dev->nChunksPerBlock,
-+			     theChunk % dev->nChunksPerBlock)) {
-+
-+				yaffs_ReadChunkTagsFromNAND(in->myDev, theChunk,
-+							    tags,
-+							    &chunkDeleted);
-+				if (yaffs_TagsMatch
-+				    (tags, in->objectId, chunk, chunkDeleted)) {
-+					/* found it; */
-+
-+				}
-+			} else {
-+
-+				failed = 1;
-+			}
-+
-+		} else {
-+			/* T(("No level 0 found for %d\n", chunk)); */
-+		}
-+	}
-+
-+	return failed ? YAFFS_FAIL : YAFFS_OK;
-+}
-+
-+#endif
-+
-+static int yaffs_PutChunkIntoFile(yaffs_Object *in, int chunkInInode,
-+				  int chunkInNAND, int inScan)
-+{
-+	/* NB inScan is zero unless scanning.
-+	 * For forward scanning, inScan is > 0;
-+	 * for backward scanning inScan is < 0
-+	 */
-+
-+	yaffs_Tnode *tn;
-+	yaffs_Device *dev = in->myDev;
-+	int existingChunk;
-+	yaffs_ExtendedTags existingTags;
-+	yaffs_ExtendedTags newTags;
-+	unsigned existingSerial, newSerial;
-+
-+	if (in->variantType != YAFFS_OBJECT_TYPE_FILE) {
-+		/* Just ignore an attempt at putting a chunk into a non-file during scanning
-+		 * If it is not during Scanning then something went wrong!
-+		 */
-+		if (!inScan) {
-+			T(YAFFS_TRACE_ERROR,
-+			  (TSTR
-+			   ("yaffs tragedy:attempt to put data chunk into a non-file"
-+			    TENDSTR)));
-+			YBUG();
-+		}
-+
-+		yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__);
-+		return YAFFS_OK;
-+	}
-+
-+	tn = yaffs_AddOrFindLevel0Tnode(dev,
-+					&in->variant.fileVariant,
-+					chunkInInode,
-+					NULL);
-+	if (!tn)
-+		return YAFFS_FAIL;
-+
-+	existingChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode);
-+
-+	if (inScan != 0) {
-+		/* If we're scanning then we need to test for duplicates
-+		 * NB This does not need to be efficient since it should only ever
-+		 * happen when the power fails during a write, then only one
-+		 * chunk should ever be affected.
-+		 *
-+		 * Correction for YAFFS2: This could happen quite a lot and we need to think about efficiency! TODO
-+		 * Update: For backward scanning we don't need to re-read tags so this is quite cheap.
-+		 */
-+
-+		if (existingChunk > 0) {
-+			/* NB Right now existing chunk will not be real chunkId if the device >= 32MB
-+			 *    thus we have to do a FindChunkInFile to get the real chunk id.
-+			 *
-+			 * We have a duplicate now we need to decide which one to use:
-+			 *
-+			 * Backwards scanning YAFFS2: The old one is what we use, dump the new one.
-+			 * Forward scanning YAFFS2: The new one is what we use, dump the old one.
-+			 * YAFFS1: Get both sets of tags and compare serial numbers.
-+			 */
-+
-+			if (inScan > 0) {
-+				/* Only do this for forward scanning */
-+				yaffs_ReadChunkWithTagsFromNAND(dev,
-+								chunkInNAND,
-+								NULL, &newTags);
-+
-+				/* Do a proper find */
-+				existingChunk =
-+				    yaffs_FindChunkInFile(in, chunkInInode,
-+							  &existingTags);
-+			}
-+
-+			if (existingChunk <= 0) {
-+				/*Hoosterman - how did this happen? */
-+
-+				T(YAFFS_TRACE_ERROR,
-+				  (TSTR
-+				   ("yaffs tragedy: existing chunk < 0 in scan"
-+				    TENDSTR)));
-+
-+			}
-+
-+			/* NB The deleted flags should be false, otherwise the chunks will
-+			 * not be loaded during a scan
-+			 */
-+
-+			if (inScan > 0) {
-+				newSerial = newTags.serialNumber;
-+				existingSerial = existingTags.serialNumber;
-+			}
-+
-+			if ((inScan > 0) &&
-+			    (in->myDev->isYaffs2 ||
-+			     existingChunk <= 0 ||
-+			     ((existingSerial + 1) & 3) == newSerial)) {
-+				/* Forward scanning.
-+				 * Use new
-+				 * Delete the old one and drop through to update the tnode
-+				 */
-+				yaffs_DeleteChunk(dev, existingChunk, 1,
-+						  __LINE__);
-+			} else {
-+				/* Backward scanning or we want to use the existing one
-+				 * Use existing.
-+				 * Delete the new one and return early so that the tnode isn't changed
-+				 */
-+				yaffs_DeleteChunk(dev, chunkInNAND, 1,
-+						  __LINE__);
-+				return YAFFS_OK;
-+			}
-+		}
-+
-+	}
-+
-+	if (existingChunk == 0)
-+		in->nDataChunks++;
-+
-+	yaffs_PutLevel0Tnode(dev, tn, chunkInInode, chunkInNAND);
-+
-+	return YAFFS_OK;
-+}
-+
-+static int yaffs_ReadChunkDataFromObject(yaffs_Object *in, int chunkInInode,
-+					__u8 *buffer)
-+{
-+	int chunkInNAND = yaffs_FindChunkInFile(in, chunkInInode, NULL);
-+
-+	if (chunkInNAND >= 0)
-+		return yaffs_ReadChunkWithTagsFromNAND(in->myDev, chunkInNAND,
-+						buffer, NULL);
-+	else {
-+		T(YAFFS_TRACE_NANDACCESS,
-+		  (TSTR("Chunk %d not found zero instead" TENDSTR),
-+		   chunkInNAND));
-+		/* get sane (zero) data if you read a hole */
-+		memset(buffer, 0, in->myDev->nDataBytesPerChunk);
-+		return 0;
-+	}
-+
-+}
-+
-+void yaffs_DeleteChunk(yaffs_Device *dev, int chunkId, int markNAND, int lyn)
-+{
-+	int block;
-+	int page;
-+	yaffs_ExtendedTags tags;
-+	yaffs_BlockInfo *bi;
-+
-+	if (chunkId <= 0)
-+		return;
-+
-+	dev->nDeletions++;
-+	block = chunkId / dev->nChunksPerBlock;
-+	page = chunkId % dev->nChunksPerBlock;
-+
-+
-+	if (!yaffs_CheckChunkBit(dev, block, page))
-+		T(YAFFS_TRACE_VERIFY,
-+			(TSTR("Deleting invalid chunk %d"TENDSTR),
-+			 chunkId));
-+
-+	bi = yaffs_GetBlockInfo(dev, block);
-+
-+	T(YAFFS_TRACE_DELETION,
-+	  (TSTR("line %d delete of chunk %d" TENDSTR), lyn, chunkId));
-+
-+	if (markNAND &&
-+	    bi->blockState != YAFFS_BLOCK_STATE_COLLECTING && !dev->isYaffs2) {
-+
-+		yaffs_InitialiseTags(&tags);
-+
-+		tags.chunkDeleted = 1;
-+
-+		yaffs_WriteChunkWithTagsToNAND(dev, chunkId, NULL, &tags);
-+		yaffs_HandleUpdateChunk(dev, chunkId, &tags);
-+	} else {
-+		dev->nUnmarkedDeletions++;
-+	}
-+
-+	/* Pull out of the management area.
-+	 * If the whole block became dirty, this will kick off an erasure.
-+	 */
-+	if (bi->blockState == YAFFS_BLOCK_STATE_ALLOCATING ||
-+	    bi->blockState == YAFFS_BLOCK_STATE_FULL ||
-+	    bi->blockState == YAFFS_BLOCK_STATE_NEEDS_SCANNING ||
-+	    bi->blockState == YAFFS_BLOCK_STATE_COLLECTING) {
-+		dev->nFreeChunks++;
-+
-+		yaffs_ClearChunkBit(dev, block, page);
-+
-+		bi->pagesInUse--;
-+
-+		if (bi->pagesInUse == 0 &&
-+		    !bi->hasShrinkHeader &&
-+		    bi->blockState != YAFFS_BLOCK_STATE_ALLOCATING &&
-+		    bi->blockState != YAFFS_BLOCK_STATE_NEEDS_SCANNING) {
-+			yaffs_BlockBecameDirty(dev, block);
-+		}
-+
-+	}
-+
-+}
-+
-+static int yaffs_WriteChunkDataToObject(yaffs_Object *in, int chunkInInode,
-+					const __u8 *buffer, int nBytes,
-+					int useReserve)
-+{
-+	/* Find old chunk Need to do this to get serial number
-+	 * Write new one and patch into tree.
-+	 * Invalidate old tags.
-+	 */
-+
-+	int prevChunkId;
-+	yaffs_ExtendedTags prevTags;
-+
-+	int newChunkId;
-+	yaffs_ExtendedTags newTags;
-+
-+	yaffs_Device *dev = in->myDev;
-+
-+	yaffs_CheckGarbageCollection(dev);
-+
-+	/* Get the previous chunk at this location in the file if it exists */
-+	prevChunkId = yaffs_FindChunkInFile(in, chunkInInode, &prevTags);
-+
-+	/* Set up new tags */
-+	yaffs_InitialiseTags(&newTags);
-+
-+	newTags.chunkId = chunkInInode;
-+	newTags.objectId = in->objectId;
-+	newTags.serialNumber =
-+	    (prevChunkId >= 0) ? prevTags.serialNumber + 1 : 1;
-+	newTags.byteCount = nBytes;
-+
-+	if (nBytes < 1 || nBytes > dev->totalBytesPerChunk) {
-+		T(YAFFS_TRACE_ERROR,
-+		(TSTR("Writing %d bytes to chunk!!!!!!!!!" TENDSTR), nBytes));
-+		YBUG();
-+	}
-+
-+	newChunkId =
-+	    yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &newTags,
-+					      useReserve);
-+
-+	if (newChunkId >= 0) {
-+		yaffs_PutChunkIntoFile(in, chunkInInode, newChunkId, 0);
-+
-+		if (prevChunkId >= 0)
-+			yaffs_DeleteChunk(dev, prevChunkId, 1, __LINE__);
-+
-+		yaffs_CheckFileSanity(in);
-+	}
-+	return newChunkId;
-+
-+}
-+
-+/* UpdateObjectHeader updates the header on NAND for an object.
-+ * If name is not NULL, then that new name is used.
-+ */
-+int yaffs_UpdateObjectHeader(yaffs_Object *in, const YCHAR *name, int force,
-+			     int isShrink, int shadows)
-+{
-+
-+	yaffs_BlockInfo *bi;
-+
-+	yaffs_Device *dev = in->myDev;
-+
-+	int prevChunkId;
-+	int retVal = 0;
-+	int result = 0;
-+
-+	int newChunkId;
-+	yaffs_ExtendedTags newTags;
-+	yaffs_ExtendedTags oldTags;
-+
-+	__u8 *buffer = NULL;
-+	YCHAR oldName[YAFFS_MAX_NAME_LENGTH + 1];
-+
-+	yaffs_ObjectHeader *oh = NULL;
-+
-+	yaffs_strcpy(oldName, _Y("silly old name"));
-+
-+
-+	if (!in->fake ||
-+		in == dev->rootDir || /* The rootDir should also be saved */
-+		force) {
-+
-+		yaffs_CheckGarbageCollection(dev);
-+		yaffs_CheckObjectDetailsLoaded(in);
-+
-+		buffer = yaffs_GetTempBuffer(in->myDev, __LINE__);
-+		oh = (yaffs_ObjectHeader *) buffer;
-+
-+		prevChunkId = in->hdrChunk;
-+
-+		if (prevChunkId > 0) {
-+			result = yaffs_ReadChunkWithTagsFromNAND(dev, prevChunkId,
-+							buffer, &oldTags);
-+
-+			yaffs_VerifyObjectHeader(in, oh, &oldTags, 0);
-+
-+			memcpy(oldName, oh->name, sizeof(oh->name));
-+		}
-+
-+		memset(buffer, 0xFF, dev->nDataBytesPerChunk);
-+
-+		oh->type = in->variantType;
-+		oh->yst_mode = in->yst_mode;
-+		oh->shadowsObject = oh->inbandShadowsObject = shadows;
-+
-+#ifdef CONFIG_YAFFS_WINCE
-+		oh->win_atime[0] = in->win_atime[0];
-+		oh->win_ctime[0] = in->win_ctime[0];
-+		oh->win_mtime[0] = in->win_mtime[0];
-+		oh->win_atime[1] = in->win_atime[1];
-+		oh->win_ctime[1] = in->win_ctime[1];
-+		oh->win_mtime[1] = in->win_mtime[1];
-+#else
-+		oh->yst_uid = in->yst_uid;
-+		oh->yst_gid = in->yst_gid;
-+		oh->yst_atime = in->yst_atime;
-+		oh->yst_mtime = in->yst_mtime;
-+		oh->yst_ctime = in->yst_ctime;
-+		oh->yst_rdev = in->yst_rdev;
-+#endif
-+		if (in->parent)
-+			oh->parentObjectId = in->parent->objectId;
-+		else
-+			oh->parentObjectId = 0;
-+
-+		if (name && *name) {
-+			memset(oh->name, 0, sizeof(oh->name));
-+			yaffs_strncpy(oh->name, name, YAFFS_MAX_NAME_LENGTH);
-+		} else if (prevChunkId >= 0)
-+			memcpy(oh->name, oldName, sizeof(oh->name));
-+		else
-+			memset(oh->name, 0, sizeof(oh->name));
-+
-+		oh->isShrink = isShrink;
-+
-+		switch (in->variantType) {
-+		case YAFFS_OBJECT_TYPE_UNKNOWN:
-+			/* Should not happen */
-+			break;
-+		case YAFFS_OBJECT_TYPE_FILE:
-+			oh->fileSize =
-+			    (oh->parentObjectId == YAFFS_OBJECTID_DELETED
-+			     || oh->parentObjectId ==
-+			     YAFFS_OBJECTID_UNLINKED) ? 0 : in->variant.
-+			    fileVariant.fileSize;
-+			break;
-+		case YAFFS_OBJECT_TYPE_HARDLINK:
-+			oh->equivalentObjectId =
-+			    in->variant.hardLinkVariant.equivalentObjectId;
-+			break;
-+		case YAFFS_OBJECT_TYPE_SPECIAL:
-+			/* Do nothing */
-+			break;
-+		case YAFFS_OBJECT_TYPE_DIRECTORY:
-+			/* Do nothing */
-+			break;
-+		case YAFFS_OBJECT_TYPE_SYMLINK:
-+			yaffs_strncpy(oh->alias,
-+				      in->variant.symLinkVariant.alias,
-+				      YAFFS_MAX_ALIAS_LENGTH);
-+			oh->alias[YAFFS_MAX_ALIAS_LENGTH] = 0;
-+			break;
-+		}
-+
-+		/* Tags */
-+		yaffs_InitialiseTags(&newTags);
-+		in->serial++;
-+		newTags.chunkId = 0;
-+		newTags.objectId = in->objectId;
-+		newTags.serialNumber = in->serial;
-+
-+		/* Add extra info for file header */
-+
-+		newTags.extraHeaderInfoAvailable = 1;
-+		newTags.extraParentObjectId = oh->parentObjectId;
-+		newTags.extraFileLength = oh->fileSize;
-+		newTags.extraIsShrinkHeader = oh->isShrink;
-+		newTags.extraEquivalentObjectId = oh->equivalentObjectId;
-+		newTags.extraShadows = (oh->shadowsObject > 0) ? 1 : 0;
-+		newTags.extraObjectType = in->variantType;
-+
-+		yaffs_VerifyObjectHeader(in, oh, &newTags, 1);
-+
-+		/* Create new chunk in NAND */
-+		newChunkId =
-+		    yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &newTags,
-+						      (prevChunkId >= 0) ? 1 : 0);
-+
-+		if (newChunkId >= 0) {
-+
-+			in->hdrChunk = newChunkId;
-+
-+			if (prevChunkId >= 0) {
-+				yaffs_DeleteChunk(dev, prevChunkId, 1,
-+						  __LINE__);
-+			}
-+
-+			if (!yaffs_ObjectHasCachedWriteData(in))
-+				in->dirty = 0;
-+
-+			/* If this was a shrink, then mark the block that the chunk lives on */
-+			if (isShrink) {
-+				bi = yaffs_GetBlockInfo(in->myDev,
-+					newChunkId / in->myDev->nChunksPerBlock);
-+				bi->hasShrinkHeader = 1;
-+			}
-+
-+		}
-+
-+		retVal = newChunkId;
-+
-+	}
-+
-+	if (buffer)
-+		yaffs_ReleaseTempBuffer(dev, buffer, __LINE__);
-+
-+	return retVal;
-+}
-+
-+/*------------------------ Short Operations Cache ----------------------------------------
-+ *   In many situations where there is no high level buffering (eg WinCE) a lot of
-+ *   reads might be short sequential reads, and a lot of writes may be short
-+ *   sequential writes. eg. scanning/writing a jpeg file.
-+ *   In these cases, a short read/write cache can provide a huge perfomance benefit
-+ *   with dumb-as-a-rock code.
-+ *   In Linux, the page cache provides read buffering aand the short op cache provides write
-+ *   buffering.
-+ *
-+ *   There are a limited number (~10) of cache chunks per device so that we don't
-+ *   need a very intelligent search.
-+ */
-+
-+static int yaffs_ObjectHasCachedWriteData(yaffs_Object *obj)
-+{
-+	yaffs_Device *dev = obj->myDev;
-+	int i;
-+	yaffs_ChunkCache *cache;
-+	int nCaches = obj->myDev->nShortOpCaches;
-+
-+	for (i = 0; i < nCaches; i++) {
-+		cache = &dev->srCache[i];
-+		if (cache->object == obj &&
-+		    cache->dirty)
-+			return 1;
-+	}
-+
-+	return 0;
-+}
-+
-+
-+static void yaffs_FlushFilesChunkCache(yaffs_Object *obj)
-+{
-+	yaffs_Device *dev = obj->myDev;
-+	int lowest = -99;	/* Stop compiler whining. */
-+	int i;
-+	yaffs_ChunkCache *cache;
-+	int chunkWritten = 0;
-+	int nCaches = obj->myDev->nShortOpCaches;
-+
-+	if (nCaches > 0) {
-+		do {
-+			cache = NULL;
-+
-+			/* Find the dirty cache for this object with the lowest chunk id. */
-+			for (i = 0; i < nCaches; i++) {
-+				if (dev->srCache[i].object == obj &&
-+				    dev->srCache[i].dirty) {
-+					if (!cache
-+					    || dev->srCache[i].chunkId <
-+					    lowest) {
-+						cache = &dev->srCache[i];
-+						lowest = cache->chunkId;
-+					}
-+				}
-+			}
-+
-+			if (cache && !cache->locked) {
-+				/* Write it out and free it up */
-+
-+				chunkWritten =
-+				    yaffs_WriteChunkDataToObject(cache->object,
-+								 cache->chunkId,
-+								 cache->data,
-+								 cache->nBytes,
-+								 1);
-+				cache->dirty = 0;
-+				cache->object = NULL;
-+			}
-+
-+		} while (cache && chunkWritten > 0);
-+
-+		if (cache) {
-+			/* Hoosterman, disk full while writing cache out. */
-+			T(YAFFS_TRACE_ERROR,
-+			  (TSTR("yaffs tragedy: no space during cache write" TENDSTR)));
-+
-+		}
-+	}
-+
-+}
-+
-+/*yaffs_FlushEntireDeviceCache(dev)
-+ *
-+ *
-+ */
-+
-+void yaffs_FlushEntireDeviceCache(yaffs_Device *dev)
-+{
-+	yaffs_Object *obj;
-+	int nCaches = dev->nShortOpCaches;
-+	int i;
-+
-+	/* Find a dirty object in the cache and flush it...
-+	 * until there are no further dirty objects.
-+	 */
-+	do {
-+		obj = NULL;
-+		for (i = 0; i < nCaches && !obj; i++) {
-+			if (dev->srCache[i].object &&
-+			    dev->srCache[i].dirty)
-+				obj = dev->srCache[i].object;
-+
-+		}
-+		if (obj)
-+			yaffs_FlushFilesChunkCache(obj);
-+
-+	} while (obj);
-+
-+}
-+
-+
-+/* Grab us a cache chunk for use.
-+ * First look for an empty one.
-+ * Then look for the least recently used non-dirty one.
-+ * Then look for the least recently used dirty one...., flush and look again.
-+ */
-+static yaffs_ChunkCache *yaffs_GrabChunkCacheWorker(yaffs_Device *dev)
-+{
-+	int i;
-+
-+	if (dev->nShortOpCaches > 0) {
-+		for (i = 0; i < dev->nShortOpCaches; i++) {
-+			if (!dev->srCache[i].object)
-+				return &dev->srCache[i];
-+		}
-+	}
-+
-+	return NULL;
-+}
-+
-+static yaffs_ChunkCache *yaffs_GrabChunkCache(yaffs_Device *dev)
-+{
-+	yaffs_ChunkCache *cache;
-+	yaffs_Object *theObj;
-+	int usage;
-+	int i;
-+	int pushout;
-+
-+	if (dev->nShortOpCaches > 0) {
-+		/* Try find a non-dirty one... */
-+
-+		cache = yaffs_GrabChunkCacheWorker(dev);
-+
-+		if (!cache) {
-+			/* They were all dirty, find the last recently used object and flush
-+			 * its cache, then  find again.
-+			 * NB what's here is not very accurate, we actually flush the object
-+			 * the last recently used page.
-+			 */
-+
-+			/* With locking we can't assume we can use entry zero */
-+
-+			theObj = NULL;
-+			usage = -1;
-+			cache = NULL;
-+			pushout = -1;
-+
-+			for (i = 0; i < dev->nShortOpCaches; i++) {
-+				if (dev->srCache[i].object &&
-+				    !dev->srCache[i].locked &&
-+				    (dev->srCache[i].lastUse < usage || !cache)) {
-+					usage = dev->srCache[i].lastUse;
-+					theObj = dev->srCache[i].object;
-+					cache = &dev->srCache[i];
-+					pushout = i;
-+				}
-+			}
-+
-+			if (!cache || cache->dirty) {
-+				/* Flush and try again */
-+				yaffs_FlushFilesChunkCache(theObj);
-+				cache = yaffs_GrabChunkCacheWorker(dev);
-+			}
-+
-+		}
-+		return cache;
-+	} else
-+		return NULL;
-+
-+}
-+
-+/* Find a cached chunk */
-+static yaffs_ChunkCache *yaffs_FindChunkCache(const yaffs_Object *obj,
-+					      int chunkId)
-+{
-+	yaffs_Device *dev = obj->myDev;
-+	int i;
-+	if (dev->nShortOpCaches > 0) {
-+		for (i = 0; i < dev->nShortOpCaches; i++) {
-+			if (dev->srCache[i].object == obj &&
-+			    dev->srCache[i].chunkId == chunkId) {
-+				dev->cacheHits++;
-+
-+				return &dev->srCache[i];
-+			}
-+		}
-+	}
-+	return NULL;
-+}
-+
-+/* Mark the chunk for the least recently used algorithym */
-+static void yaffs_UseChunkCache(yaffs_Device *dev, yaffs_ChunkCache *cache,
-+				int isAWrite)
-+{
-+
-+	if (dev->nShortOpCaches > 0) {
-+		if (dev->srLastUse < 0 || dev->srLastUse > 100000000) {
-+			/* Reset the cache usages */
-+			int i;
-+			for (i = 1; i < dev->nShortOpCaches; i++)
-+				dev->srCache[i].lastUse = 0;
-+
-+			dev->srLastUse = 0;
-+		}
-+
-+		dev->srLastUse++;
-+
-+		cache->lastUse = dev->srLastUse;
-+
-+		if (isAWrite)
-+			cache->dirty = 1;
-+	}
-+}
-+
-+/* Invalidate a single cache page.
-+ * Do this when a whole page gets written,
-+ * ie the short cache for this page is no longer valid.
-+ */
-+static void yaffs_InvalidateChunkCache(yaffs_Object *object, int chunkId)
-+{
-+	if (object->myDev->nShortOpCaches > 0) {
-+		yaffs_ChunkCache *cache = yaffs_FindChunkCache(object, chunkId);
-+
-+		if (cache)
-+			cache->object = NULL;
-+	}
-+}
-+
-+/* Invalidate all the cache pages associated with this object
-+ * Do this whenever ther file is deleted or resized.
-+ */
-+static void yaffs_InvalidateWholeChunkCache(yaffs_Object *in)
-+{
-+	int i;
-+	yaffs_Device *dev = in->myDev;
-+
-+	if (dev->nShortOpCaches > 0) {
-+		/* Invalidate it. */
-+		for (i = 0; i < dev->nShortOpCaches; i++) {
-+			if (dev->srCache[i].object == in)
-+				dev->srCache[i].object = NULL;
-+		}
-+	}
-+}
-+
-+/*--------------------- Checkpointing --------------------*/
-+
-+
-+static int yaffs_WriteCheckpointValidityMarker(yaffs_Device *dev, int head)
-+{
-+	yaffs_CheckpointValidity cp;
-+
-+	memset(&cp, 0, sizeof(cp));
-+
-+	cp.structType = sizeof(cp);
-+	cp.magic = YAFFS_MAGIC;
-+	cp.version = YAFFS_CHECKPOINT_VERSION;
-+	cp.head = (head) ? 1 : 0;
-+
-+	return (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)) ?
-+		1 : 0;
-+}
-+
-+static int yaffs_ReadCheckpointValidityMarker(yaffs_Device *dev, int head)
-+{
-+	yaffs_CheckpointValidity cp;
-+	int ok;
-+
-+	ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp));
-+
-+	if (ok)
-+		ok = (cp.structType == sizeof(cp)) &&
-+		     (cp.magic == YAFFS_MAGIC) &&
-+		     (cp.version == YAFFS_CHECKPOINT_VERSION) &&
-+		     (cp.head == ((head) ? 1 : 0));
-+	return ok ? 1 : 0;
-+}
-+
-+static void yaffs_DeviceToCheckpointDevice(yaffs_CheckpointDevice *cp,
-+					   yaffs_Device *dev)
-+{
-+	cp->nErasedBlocks = dev->nErasedBlocks;
-+	cp->allocationBlock = dev->allocationBlock;
-+	cp->allocationPage = dev->allocationPage;
-+	cp->nFreeChunks = dev->nFreeChunks;
-+
-+	cp->nDeletedFiles = dev->nDeletedFiles;
-+	cp->nUnlinkedFiles = dev->nUnlinkedFiles;
-+	cp->nBackgroundDeletions = dev->nBackgroundDeletions;
-+	cp->sequenceNumber = dev->sequenceNumber;
-+	cp->oldestDirtySequence = dev->oldestDirtySequence;
-+
-+}
-+
-+static void yaffs_CheckpointDeviceToDevice(yaffs_Device *dev,
-+					   yaffs_CheckpointDevice *cp)
-+{
-+	dev->nErasedBlocks = cp->nErasedBlocks;
-+	dev->allocationBlock = cp->allocationBlock;
-+	dev->allocationPage = cp->allocationPage;
-+	dev->nFreeChunks = cp->nFreeChunks;
-+
-+	dev->nDeletedFiles = cp->nDeletedFiles;
-+	dev->nUnlinkedFiles = cp->nUnlinkedFiles;
-+	dev->nBackgroundDeletions = cp->nBackgroundDeletions;
-+	dev->sequenceNumber = cp->sequenceNumber;
-+	dev->oldestDirtySequence = cp->oldestDirtySequence;
-+}
-+
-+
-+static int yaffs_WriteCheckpointDevice(yaffs_Device *dev)
-+{
-+	yaffs_CheckpointDevice cp;
-+	__u32 nBytes;
-+	__u32 nBlocks = (dev->internalEndBlock - dev->internalStartBlock + 1);
-+
-+	int ok;
-+
-+	/* Write device runtime values*/
-+	yaffs_DeviceToCheckpointDevice(&cp, dev);
-+	cp.structType = sizeof(cp);
-+
-+	ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp));
-+
-+	/* Write block info */
-+	if (ok) {
-+		nBytes = nBlocks * sizeof(yaffs_BlockInfo);
-+		ok = (yaffs_CheckpointWrite(dev, dev->blockInfo, nBytes) == nBytes);
-+	}
-+
-+	/* Write chunk bits */
-+	if (ok) {
-+		nBytes = nBlocks * dev->chunkBitmapStride;
-+		ok = (yaffs_CheckpointWrite(dev, dev->chunkBits, nBytes) == nBytes);
-+	}
-+	return	 ok ? 1 : 0;
-+
-+}
-+
-+static int yaffs_ReadCheckpointDevice(yaffs_Device *dev)
-+{
-+	yaffs_CheckpointDevice cp;
-+	__u32 nBytes;
-+	__u32 nBlocks = (dev->internalEndBlock - dev->internalStartBlock + 1);
-+
-+	int ok;
-+
-+	ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp));
-+	if (!ok)
-+		return 0;
-+
-+	if (cp.structType != sizeof(cp))
-+		return 0;
-+
-+
-+	yaffs_CheckpointDeviceToDevice(dev, &cp);
-+
-+	nBytes = nBlocks * sizeof(yaffs_BlockInfo);
-+
-+	ok = (yaffs_CheckpointRead(dev, dev->blockInfo, nBytes) == nBytes);
-+
-+	if (!ok)
-+		return 0;
-+	nBytes = nBlocks * dev->chunkBitmapStride;
-+
-+	ok = (yaffs_CheckpointRead(dev, dev->chunkBits, nBytes) == nBytes);
-+
-+	return ok ? 1 : 0;
-+}
-+
-+static void yaffs_ObjectToCheckpointObject(yaffs_CheckpointObject *cp,
-+					   yaffs_Object *obj)
-+{
-+
-+	cp->objectId = obj->objectId;
-+	cp->parentId = (obj->parent) ? obj->parent->objectId : 0;
-+	cp->hdrChunk = obj->hdrChunk;
-+	cp->variantType = obj->variantType;
-+	cp->deleted = obj->deleted;
-+	cp->softDeleted = obj->softDeleted;
-+	cp->unlinked = obj->unlinked;
-+	cp->fake = obj->fake;
-+	cp->renameAllowed = obj->renameAllowed;
-+	cp->unlinkAllowed = obj->unlinkAllowed;
-+	cp->serial = obj->serial;
-+	cp->nDataChunks = obj->nDataChunks;
-+
-+	if (obj->variantType == YAFFS_OBJECT_TYPE_FILE)
-+		cp->fileSizeOrEquivalentObjectId = obj->variant.fileVariant.fileSize;
-+	else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK)
-+		cp->fileSizeOrEquivalentObjectId = obj->variant.hardLinkVariant.equivalentObjectId;
-+}
-+
-+static int yaffs_CheckpointObjectToObject(yaffs_Object *obj, yaffs_CheckpointObject *cp)
-+{
-+
-+	yaffs_Object *parent;
-+
-+	if (obj->variantType != cp->variantType) {
-+		T(YAFFS_TRACE_ERROR, (TSTR("Checkpoint read object %d type %d "
-+			TCONT("chunk %d does not match existing object type %d")
-+			TENDSTR), cp->objectId, cp->variantType, cp->hdrChunk,
-+			obj->variantType));
-+		return 0;
-+	}
-+
-+	obj->objectId = cp->objectId;
-+
-+	if (cp->parentId)
-+		parent = yaffs_FindOrCreateObjectByNumber(
-+					obj->myDev,
-+					cp->parentId,
-+					YAFFS_OBJECT_TYPE_DIRECTORY);
-+	else
-+		parent = NULL;
-+
-+	if (parent) {
-+		if (parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
-+			T(YAFFS_TRACE_ALWAYS, (TSTR("Checkpoint read object %d parent %d type %d"
-+				TCONT(" chunk %d Parent type, %d, not directory")
-+				TENDSTR),
-+				cp->objectId, cp->parentId, cp->variantType,
-+				cp->hdrChunk, parent->variantType));
-+			return 0;
-+		}
-+		yaffs_AddObjectToDirectory(parent, obj);
-+	}
-+
-+	obj->hdrChunk = cp->hdrChunk;
-+	obj->variantType = cp->variantType;
-+	obj->deleted = cp->deleted;
-+	obj->softDeleted = cp->softDeleted;
-+	obj->unlinked = cp->unlinked;
-+	obj->fake = cp->fake;
-+	obj->renameAllowed = cp->renameAllowed;
-+	obj->unlinkAllowed = cp->unlinkAllowed;
-+	obj->serial = cp->serial;
-+	obj->nDataChunks = cp->nDataChunks;
-+
-+	if (obj->variantType == YAFFS_OBJECT_TYPE_FILE)
-+		obj->variant.fileVariant.fileSize = cp->fileSizeOrEquivalentObjectId;
-+	else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK)
-+		obj->variant.hardLinkVariant.equivalentObjectId = cp->fileSizeOrEquivalentObjectId;
-+
-+	if (obj->hdrChunk > 0)
-+		obj->lazyLoaded = 1;
-+	return 1;
-+}
-+
-+
-+
-+static int yaffs_CheckpointTnodeWorker(yaffs_Object *in, yaffs_Tnode *tn,
-+					__u32 level, int chunkOffset)
-+{
-+	int i;
-+	yaffs_Device *dev = in->myDev;
-+	int ok = 1;
-+	int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
-+
-+	if (tnodeSize < sizeof(yaffs_Tnode))
-+		tnodeSize = sizeof(yaffs_Tnode);
-+
-+
-+	if (tn) {
-+		if (level > 0) {
-+
-+			for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) {
-+				if (tn->internal[i]) {
-+					ok = yaffs_CheckpointTnodeWorker(in,
-+							tn->internal[i],
-+							level - 1,
-+							(chunkOffset<<YAFFS_TNODES_INTERNAL_BITS) + i);
-+				}
-+			}
-+		} else if (level == 0) {
-+			__u32 baseOffset = chunkOffset <<  YAFFS_TNODES_LEVEL0_BITS;
-+			ok = (yaffs_CheckpointWrite(dev, &baseOffset, sizeof(baseOffset)) == sizeof(baseOffset));
-+			if (ok)
-+				ok = (yaffs_CheckpointWrite(dev, tn, tnodeSize) == tnodeSize);
-+		}
-+	}
-+
-+	return ok;
-+
-+}
-+
-+static int yaffs_WriteCheckpointTnodes(yaffs_Object *obj)
-+{
-+	__u32 endMarker = ~0;
-+	int ok = 1;
-+
-+	if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) {
-+		ok = yaffs_CheckpointTnodeWorker(obj,
-+					    obj->variant.fileVariant.top,
-+					    obj->variant.fileVariant.topLevel,
-+					    0);
-+		if (ok)
-+			ok = (yaffs_CheckpointWrite(obj->myDev, &endMarker, sizeof(endMarker)) ==
-+				sizeof(endMarker));
-+	}
-+
-+	return ok ? 1 : 0;
-+}
-+
-+static int yaffs_ReadCheckpointTnodes(yaffs_Object *obj)
-+{
-+	__u32 baseChunk;
-+	int ok = 1;
-+	yaffs_Device *dev = obj->myDev;
-+	yaffs_FileStructure *fileStructPtr = &obj->variant.fileVariant;
-+	yaffs_Tnode *tn;
-+	int nread = 0;
-+	int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
-+
-+	if (tnodeSize < sizeof(yaffs_Tnode))
-+		tnodeSize = sizeof(yaffs_Tnode);
-+
-+	ok = (yaffs_CheckpointRead(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk));
-+
-+	while (ok && (~baseChunk)) {
-+		nread++;
-+		/* Read level 0 tnode */
-+
-+
-+		tn = yaffs_GetTnodeRaw(dev);
-+		if (tn)
-+			ok = (yaffs_CheckpointRead(dev, tn, tnodeSize) == tnodeSize);
-+		else
-+			ok = 0;
-+
-+		if (tn && ok)
-+			ok = yaffs_AddOrFindLevel0Tnode(dev,
-+							fileStructPtr,
-+							baseChunk,
-+							tn) ? 1 : 0;
-+
-+		if (ok)
-+			ok = (yaffs_CheckpointRead(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk));
-+
-+	}
-+
-+	T(YAFFS_TRACE_CHECKPOINT, (
-+		TSTR("Checkpoint read tnodes %d records, last %d. ok %d" TENDSTR),
-+		nread, baseChunk, ok));
-+
-+	return ok ? 1 : 0;
-+}
-+
-+
-+static int yaffs_WriteCheckpointObjects(yaffs_Device *dev)
-+{
-+	yaffs_Object *obj;
-+	yaffs_CheckpointObject cp;
-+	int i;
-+	int ok = 1;
-+	struct ylist_head *lh;
-+
-+
-+	/* Iterate through the objects in each hash entry,
-+	 * dumping them to the checkpointing stream.
-+	 */
-+
-+	for (i = 0; ok &&  i <  YAFFS_NOBJECT_BUCKETS; i++) {
-+		ylist_for_each(lh, &dev->objectBucket[i].list) {
-+			if (lh) {
-+				obj = ylist_entry(lh, yaffs_Object, hashLink);
-+				if (!obj->deferedFree) {
-+					yaffs_ObjectToCheckpointObject(&cp, obj);
-+					cp.structType = sizeof(cp);
-+
-+					T(YAFFS_TRACE_CHECKPOINT, (
-+						TSTR("Checkpoint write object %d parent %d type %d chunk %d obj addr %x" TENDSTR),
-+						cp.objectId, cp.parentId, cp.variantType, cp.hdrChunk, (unsigned) obj));
-+
-+					ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp));
-+
-+					if (ok && obj->variantType == YAFFS_OBJECT_TYPE_FILE)
-+						ok = yaffs_WriteCheckpointTnodes(obj);
-+				}
-+			}
-+		}
-+	}
-+
-+	/* Dump end of list */
-+	memset(&cp, 0xFF, sizeof(yaffs_CheckpointObject));
-+	cp.structType = sizeof(cp);
-+
-+	if (ok)
-+		ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp));
-+
-+	return ok ? 1 : 0;
-+}
-+
-+static int yaffs_ReadCheckpointObjects(yaffs_Device *dev)
-+{
-+	yaffs_Object *obj;
-+	yaffs_CheckpointObject cp;
-+	int ok = 1;
-+	int done = 0;
-+	yaffs_Object *hardList = NULL;
-+
-+	while (ok && !done) {
-+		ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp));
-+		if (cp.structType != sizeof(cp)) {
-+			T(YAFFS_TRACE_CHECKPOINT, (TSTR("struct size %d instead of %d ok %d"TENDSTR),
-+				cp.structType, sizeof(cp), ok));
-+			ok = 0;
-+		}
-+
-+		T(YAFFS_TRACE_CHECKPOINT, (TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR),
-+			cp.objectId, cp.parentId, cp.variantType, cp.hdrChunk));
-+
-+		if (ok && cp.objectId == ~0)
-+			done = 1;
-+		else if (ok) {
-+			obj = yaffs_FindOrCreateObjectByNumber(dev, cp.objectId, cp.variantType);
-+			if (obj) {
-+				ok = yaffs_CheckpointObjectToObject(obj, &cp);
-+				if (!ok)
-+					break;
-+				if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) {
-+					ok = yaffs_ReadCheckpointTnodes(obj);
-+				} else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) {
-+					obj->hardLinks.next =
-+						(struct ylist_head *) hardList;
-+					hardList = obj;
-+				}
-+			} else
-+				ok = 0;
-+		}
-+	}
-+
-+	if (ok)
-+		yaffs_HardlinkFixup(dev, hardList);
-+
-+	return ok ? 1 : 0;
-+}
-+
-+static int yaffs_WriteCheckpointSum(yaffs_Device *dev)
-+{
-+	__u32 checkpointSum;
-+	int ok;
-+
-+	yaffs_GetCheckpointSum(dev, &checkpointSum);
-+
-+	ok = (yaffs_CheckpointWrite(dev, &checkpointSum, sizeof(checkpointSum)) == sizeof(checkpointSum));
-+
-+	if (!ok)
-+		return 0;
-+
-+	return 1;
-+}
-+
-+static int yaffs_ReadCheckpointSum(yaffs_Device *dev)
-+{
-+	__u32 checkpointSum0;
-+	__u32 checkpointSum1;
-+	int ok;
-+
-+	yaffs_GetCheckpointSum(dev, &checkpointSum0);
-+
-+	ok = (yaffs_CheckpointRead(dev, &checkpointSum1, sizeof(checkpointSum1)) == sizeof(checkpointSum1));
-+
-+	if (!ok)
-+		return 0;
-+
-+	if (checkpointSum0 != checkpointSum1)
-+		return 0;
-+
-+	return 1;
-+}
-+
-+
-+static int yaffs_WriteCheckpointData(yaffs_Device *dev)
-+{
-+	int ok = 1;
-+
-+	if (dev->skipCheckpointWrite || !dev->isYaffs2) {
-+		T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint write" TENDSTR)));
-+		ok = 0;
-+	}
-+
-+	if (ok)
-+		ok = yaffs_CheckpointOpen(dev, 1);
-+
-+	if (ok) {
-+		T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR)));
-+		ok = yaffs_WriteCheckpointValidityMarker(dev, 1);
-+	}
-+	if (ok) {
-+		T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint device" TENDSTR)));
-+		ok = yaffs_WriteCheckpointDevice(dev);
-+	}
-+	if (ok) {
-+		T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint objects" TENDSTR)));
-+		ok = yaffs_WriteCheckpointObjects(dev);
-+	}
-+	if (ok) {
-+		T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR)));
-+		ok = yaffs_WriteCheckpointValidityMarker(dev, 0);
-+	}
-+
-+	if (ok)
-+		ok = yaffs_WriteCheckpointSum(dev);
-+
-+	if (!yaffs_CheckpointClose(dev))
-+		ok = 0;
-+
-+	if (ok)
-+		dev->isCheckpointed = 1;
-+	else
-+		dev->isCheckpointed = 0;
-+
-+	return dev->isCheckpointed;
-+}
-+
-+static int yaffs_ReadCheckpointData(yaffs_Device *dev)
-+{
-+	int ok = 1;
-+
-+	if (dev->skipCheckpointRead || !dev->isYaffs2) {
-+		T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint read" TENDSTR)));
-+		ok = 0;
-+	}
-+
-+	if (ok)
-+		ok = yaffs_CheckpointOpen(dev, 0); /* open for read */
-+
-+	if (ok) {
-+		T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR)));
-+		ok = yaffs_ReadCheckpointValidityMarker(dev, 1);
-+	}
-+	if (ok) {
-+		T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint device" TENDSTR)));
-+		ok = yaffs_ReadCheckpointDevice(dev);
-+	}
-+	if (ok) {
-+		T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint objects" TENDSTR)));
-+		ok = yaffs_ReadCheckpointObjects(dev);
-+	}
-+	if (ok) {
-+		T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR)));
-+		ok = yaffs_ReadCheckpointValidityMarker(dev, 0);
-+	}
-+
-+	if (ok) {
-+		ok = yaffs_ReadCheckpointSum(dev);
-+		T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint checksum %d" TENDSTR), ok));
-+	}
-+
-+	if (!yaffs_CheckpointClose(dev))
-+		ok = 0;
-+
-+	if (ok)
-+		dev->isCheckpointed = 1;
-+	else
-+		dev->isCheckpointed = 0;
-+
-+	return ok ? 1 : 0;
-+
-+}
-+
-+static void yaffs_InvalidateCheckpoint(yaffs_Device *dev)
-+{
-+	if (dev->isCheckpointed ||
-+			dev->blocksInCheckpoint > 0) {
-+		dev->isCheckpointed = 0;
-+		yaffs_CheckpointInvalidateStream(dev);
-+		if (dev->superBlock && dev->markSuperBlockDirty)
-+			dev->markSuperBlockDirty(dev->superBlock);
-+	}
-+}
-+
-+
-+int yaffs_CheckpointSave(yaffs_Device *dev)
-+{
-+
-+	T(YAFFS_TRACE_CHECKPOINT, (TSTR("save entry: isCheckpointed %d"TENDSTR), dev->isCheckpointed));
-+
-+	yaffs_VerifyObjects(dev);
-+	yaffs_VerifyBlocks(dev);
-+	yaffs_VerifyFreeChunks(dev);
-+
-+	if (!dev->isCheckpointed) {
-+		yaffs_InvalidateCheckpoint(dev);
-+		yaffs_WriteCheckpointData(dev);
-+	}
-+
-+	T(YAFFS_TRACE_ALWAYS, (TSTR("save exit: isCheckpointed %d"TENDSTR), dev->isCheckpointed));
-+
-+	return dev->isCheckpointed;
-+}
-+
-+int yaffs_CheckpointRestore(yaffs_Device *dev)
-+{
-+	int retval;
-+	T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore entry: isCheckpointed %d"TENDSTR), dev->isCheckpointed));
-+
-+	retval = yaffs_ReadCheckpointData(dev);
-+
-+	if (dev->isCheckpointed) {
-+		yaffs_VerifyObjects(dev);
-+		yaffs_VerifyBlocks(dev);
-+		yaffs_VerifyFreeChunks(dev);
-+	}
-+
-+	T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore exit: isCheckpointed %d"TENDSTR), dev->isCheckpointed));
-+
-+	return retval;
-+}
-+
-+/*--------------------- File read/write ------------------------
-+ * Read and write have very similar structures.
-+ * In general the read/write has three parts to it
-+ * An incomplete chunk to start with (if the read/write is not chunk-aligned)
-+ * Some complete chunks
-+ * An incomplete chunk to end off with
-+ *
-+ * Curve-balls: the first chunk might also be the last chunk.
-+ */
-+
-+int yaffs_ReadDataFromFile(yaffs_Object *in, __u8 *buffer, loff_t offset,
-+			int nBytes)
-+{
-+
-+	int chunk;
-+	__u32 start;
-+	int nToCopy;
-+	int n = nBytes;
-+	int nDone = 0;
-+	yaffs_ChunkCache *cache;
-+
-+	yaffs_Device *dev;
-+
-+	dev = in->myDev;
-+
-+	while (n > 0) {
-+		/* chunk = offset / dev->nDataBytesPerChunk + 1; */
-+		/* start = offset % dev->nDataBytesPerChunk; */
-+		yaffs_AddrToChunk(dev, offset, &chunk, &start);
-+		chunk++;
-+
-+		/* OK now check for the curveball where the start and end are in
-+		 * the same chunk.
-+		 */
-+		if ((start + n) < dev->nDataBytesPerChunk)
-+			nToCopy = n;
-+		else
-+			nToCopy = dev->nDataBytesPerChunk - start;
-+
-+		cache = yaffs_FindChunkCache(in, chunk);
-+
-+		/* If the chunk is already in the cache or it is less than a whole chunk
-+		 * or we're using inband tags then use the cache (if there is caching)
-+		 * else bypass the cache.
-+		 */
-+		if (cache || nToCopy != dev->nDataBytesPerChunk || dev->inbandTags) {
-+			if (dev->nShortOpCaches > 0) {
-+
-+				/* If we can't find the data in the cache, then load it up. */
-+
-+				if (!cache) {
-+					cache = yaffs_GrabChunkCache(in->myDev);
-+					cache->object = in;
-+					cache->chunkId = chunk;
-+					cache->dirty = 0;
-+					cache->locked = 0;
-+					yaffs_ReadChunkDataFromObject(in, chunk,
-+								      cache->
-+								      data);
-+					cache->nBytes = 0;
-+				}
-+
-+				yaffs_UseChunkCache(dev, cache, 0);
-+
-+				cache->locked = 1;
-+
-+
-+				memcpy(buffer, &cache->data[start], nToCopy);
-+
-+				cache->locked = 0;
-+			} else {
-+				/* Read into the local buffer then copy..*/
-+
-+				__u8 *localBuffer =
-+				    yaffs_GetTempBuffer(dev, __LINE__);
-+				yaffs_ReadChunkDataFromObject(in, chunk,
-+							      localBuffer);
-+
-+				memcpy(buffer, &localBuffer[start], nToCopy);
-+
-+
-+				yaffs_ReleaseTempBuffer(dev, localBuffer,
-+							__LINE__);
-+			}
-+
-+		} else {
-+
-+			/* A full chunk. Read directly into the supplied buffer. */
-+			yaffs_ReadChunkDataFromObject(in, chunk, buffer);
-+
-+		}
-+
-+		n -= nToCopy;
-+		offset += nToCopy;
-+		buffer += nToCopy;
-+		nDone += nToCopy;
-+
-+	}
-+
-+	return nDone;
-+}
-+
-+int yaffs_WriteDataToFile(yaffs_Object *in, const __u8 *buffer, loff_t offset,
-+			int nBytes, int writeThrough)
-+{
-+
-+	int chunk;
-+	__u32 start;
-+	int nToCopy;
-+	int n = nBytes;
-+	int nDone = 0;
-+	int nToWriteBack;
-+	int startOfWrite = offset;
-+	int chunkWritten = 0;
-+	__u32 nBytesRead;
-+	__u32 chunkStart;
-+
-+	yaffs_Device *dev;
-+
-+	dev = in->myDev;
-+
-+	while (n > 0 && chunkWritten >= 0) {
-+		/* chunk = offset / dev->nDataBytesPerChunk + 1; */
-+		/* start = offset % dev->nDataBytesPerChunk; */
-+		yaffs_AddrToChunk(dev, offset, &chunk, &start);
-+
-+		if (chunk * dev->nDataBytesPerChunk + start != offset ||
-+				start >= dev->nDataBytesPerChunk) {
-+			T(YAFFS_TRACE_ERROR, (
-+			   TSTR("AddrToChunk of offset %d gives chunk %d start %d"
-+			   TENDSTR),
-+			   (int)offset, chunk, start));
-+		}
-+		chunk++;
-+
-+		/* OK now check for the curveball where the start and end are in
-+		 * the same chunk.
-+		 */
-+
-+		if ((start + n) < dev->nDataBytesPerChunk) {
-+			nToCopy = n;
-+
-+			/* Now folks, to calculate how many bytes to write back....
-+			 * If we're overwriting and not writing to then end of file then
-+			 * we need to write back as much as was there before.
-+			 */
-+
-+			chunkStart = ((chunk - 1) * dev->nDataBytesPerChunk);
-+
-+			if (chunkStart > in->variant.fileVariant.fileSize)
-+				nBytesRead = 0; /* Past end of file */
-+			else
-+				nBytesRead = in->variant.fileVariant.fileSize - chunkStart;
-+
-+			if (nBytesRead > dev->nDataBytesPerChunk)
-+				nBytesRead = dev->nDataBytesPerChunk;
-+
-+			nToWriteBack =
-+			    (nBytesRead >
-+			     (start + n)) ? nBytesRead : (start + n);
-+
-+			if (nToWriteBack < 0 || nToWriteBack > dev->nDataBytesPerChunk)
-+				YBUG();
-+
-+		} else {
-+			nToCopy = dev->nDataBytesPerChunk - start;
-+			nToWriteBack = dev->nDataBytesPerChunk;
-+		}
-+
-+		if (nToCopy != dev->nDataBytesPerChunk || dev->inbandTags) {
-+			/* An incomplete start or end chunk (or maybe both start and end chunk),
-+			 * or we're using inband tags, so we want to use the cache buffers.
-+			 */
-+			if (dev->nShortOpCaches > 0) {
-+				yaffs_ChunkCache *cache;
-+				/* If we can't find the data in the cache, then load the cache */
-+				cache = yaffs_FindChunkCache(in, chunk);
-+
-+				if (!cache
-+				    && yaffs_CheckSpaceForAllocation(in->
-+								     myDev)) {
-+					cache = yaffs_GrabChunkCache(in->myDev);
-+					cache->object = in;
-+					cache->chunkId = chunk;
-+					cache->dirty = 0;
-+					cache->locked = 0;
-+					yaffs_ReadChunkDataFromObject(in, chunk,
-+								      cache->
-+								      data);
-+				} else if (cache &&
-+					!cache->dirty &&
-+					!yaffs_CheckSpaceForAllocation(in->myDev)) {
-+					/* Drop the cache if it was a read cache item and
-+					 * no space check has been made for it.
-+					 */
-+					 cache = NULL;
-+				}
-+
-+				if (cache) {
-+					yaffs_UseChunkCache(dev, cache, 1);
-+					cache->locked = 1;
-+
-+
-+					memcpy(&cache->data[start], buffer,
-+					       nToCopy);
-+
-+
-+					cache->locked = 0;
-+					cache->nBytes = nToWriteBack;
-+
-+					if (writeThrough) {
-+						chunkWritten =
-+						    yaffs_WriteChunkDataToObject
-+						    (cache->object,
-+						     cache->chunkId,
-+						     cache->data, cache->nBytes,
-+						     1);
-+						cache->dirty = 0;
-+					}
-+
-+				} else {
-+					chunkWritten = -1;	/* fail the write */
-+				}
-+			} else {
-+				/* An incomplete start or end chunk (or maybe both start and end chunk)
-+				 * Read into the local buffer then copy, then copy over and write back.
-+				 */
-+
-+				__u8 *localBuffer =
-+				    yaffs_GetTempBuffer(dev, __LINE__);
-+
-+				yaffs_ReadChunkDataFromObject(in, chunk,
-+							      localBuffer);
-+
-+
-+
-+				memcpy(&localBuffer[start], buffer, nToCopy);
-+
-+				chunkWritten =
-+				    yaffs_WriteChunkDataToObject(in, chunk,
-+								 localBuffer,
-+								 nToWriteBack,
-+								 0);
-+
-+				yaffs_ReleaseTempBuffer(dev, localBuffer,
-+							__LINE__);
-+
-+			}
-+
-+		} else {
-+			/* A full chunk. Write directly from the supplied buffer. */
-+
-+
-+
-+			chunkWritten =
-+			    yaffs_WriteChunkDataToObject(in, chunk, buffer,
-+							 dev->nDataBytesPerChunk,
-+							 0);
-+
-+			/* Since we've overwritten the cached data, we better invalidate it. */
-+			yaffs_InvalidateChunkCache(in, chunk);
-+		}
-+
-+		if (chunkWritten >= 0) {
-+			n -= nToCopy;
-+			offset += nToCopy;
-+			buffer += nToCopy;
-+			nDone += nToCopy;
-+		}
-+
-+	}
-+
-+	/* Update file object */
-+
-+	if ((startOfWrite + nDone) > in->variant.fileVariant.fileSize)
-+		in->variant.fileVariant.fileSize = (startOfWrite + nDone);
-+
-+	in->dirty = 1;
-+
-+	return nDone;
-+}
-+
-+
-+/* ---------------------- File resizing stuff ------------------ */
-+
-+static void yaffs_PruneResizedChunks(yaffs_Object *in, int newSize)
-+{
-+
-+	yaffs_Device *dev = in->myDev;
-+	int oldFileSize = in->variant.fileVariant.fileSize;
-+
-+	int lastDel = 1 + (oldFileSize - 1) / dev->nDataBytesPerChunk;
-+
-+	int startDel = 1 + (newSize + dev->nDataBytesPerChunk - 1) /
-+	    dev->nDataBytesPerChunk;
-+	int i;
-+	int chunkId;
-+
-+	/* Delete backwards so that we don't end up with holes if
-+	 * power is lost part-way through the operation.
-+	 */
-+	for (i = lastDel; i >= startDel; i--) {
-+		/* NB this could be optimised somewhat,
-+		 * eg. could retrieve the tags and write them without
-+		 * using yaffs_DeleteChunk
-+		 */
-+
-+		chunkId = yaffs_FindAndDeleteChunkInFile(in, i, NULL);
-+		if (chunkId > 0) {
-+			if (chunkId <
-+			    (dev->internalStartBlock * dev->nChunksPerBlock)
-+			    || chunkId >=
-+			    ((dev->internalEndBlock +
-+			      1) * dev->nChunksPerBlock)) {
-+				T(YAFFS_TRACE_ALWAYS,
-+				  (TSTR("Found daft chunkId %d for %d" TENDSTR),
-+				   chunkId, i));
-+			} else {
-+				in->nDataChunks--;
-+				yaffs_DeleteChunk(dev, chunkId, 1, __LINE__);
-+			}
-+		}
-+	}
-+
-+}
-+
-+int yaffs_ResizeFile(yaffs_Object *in, loff_t newSize)
-+{
-+
-+	int oldFileSize = in->variant.fileVariant.fileSize;
-+	__u32 newSizeOfPartialChunk;
-+	int newFullChunks;
-+
-+	yaffs_Device *dev = in->myDev;
-+
-+	yaffs_AddrToChunk(dev, newSize, &newFullChunks, &newSizeOfPartialChunk);
-+
-+	yaffs_FlushFilesChunkCache(in);
-+	yaffs_InvalidateWholeChunkCache(in);
-+
-+	yaffs_CheckGarbageCollection(dev);
-+
-+	if (in->variantType != YAFFS_OBJECT_TYPE_FILE)
-+		return YAFFS_FAIL;
-+
-+	if (newSize == oldFileSize)
-+		return YAFFS_OK;
-+
-+	if (newSize < oldFileSize) {
-+
-+		yaffs_PruneResizedChunks(in, newSize);
-+
-+		if (newSizeOfPartialChunk != 0) {
-+			int lastChunk = 1 + newFullChunks;
-+
-+			__u8 *localBuffer = yaffs_GetTempBuffer(dev, __LINE__);
-+
-+			/* Got to read and rewrite the last chunk with its new size and zero pad */
-+			yaffs_ReadChunkDataFromObject(in, lastChunk,
-+						      localBuffer);
-+
-+			memset(localBuffer + newSizeOfPartialChunk, 0,
-+			       dev->nDataBytesPerChunk - newSizeOfPartialChunk);
-+
-+			yaffs_WriteChunkDataToObject(in, lastChunk, localBuffer,
-+						     newSizeOfPartialChunk, 1);
-+
-+			yaffs_ReleaseTempBuffer(dev, localBuffer, __LINE__);
-+		}
-+
-+		in->variant.fileVariant.fileSize = newSize;
-+
-+		yaffs_PruneFileStructure(dev, &in->variant.fileVariant);
-+	} else {
-+		/* newsSize > oldFileSize */
-+		in->variant.fileVariant.fileSize = newSize;
-+	}
-+
-+
-+	/* Write a new object header.
-+	 * show we've shrunk the file, if need be
-+	 * Do this only if the file is not in the deleted directories.
-+	 */
-+	if (in->parent &&
-+	    in->parent->objectId != YAFFS_OBJECTID_UNLINKED &&
-+	    in->parent->objectId != YAFFS_OBJECTID_DELETED)
-+		yaffs_UpdateObjectHeader(in, NULL, 0,
-+					 (newSize < oldFileSize) ? 1 : 0, 0);
-+
-+	return YAFFS_OK;
-+}
-+
-+loff_t yaffs_GetFileSize(yaffs_Object *obj)
-+{
-+	obj = yaffs_GetEquivalentObject(obj);
-+
-+	switch (obj->variantType) {
-+	case YAFFS_OBJECT_TYPE_FILE:
-+		return obj->variant.fileVariant.fileSize;
-+	case YAFFS_OBJECT_TYPE_SYMLINK:
-+		return yaffs_strlen(obj->variant.symLinkVariant.alias);
-+	default:
-+		return 0;
-+	}
-+}
-+
-+
-+
-+int yaffs_FlushFile(yaffs_Object *in, int updateTime)
-+{
-+	int retVal;
-+	if (in->dirty) {
-+		yaffs_FlushFilesChunkCache(in);
-+		if (updateTime) {
-+#ifdef CONFIG_YAFFS_WINCE
-+			yfsd_WinFileTimeNow(in->win_mtime);
-+#else
-+
-+			in->yst_mtime = Y_CURRENT_TIME;
-+
-+#endif
-+		}
-+
-+		retVal = (yaffs_UpdateObjectHeader(in, NULL, 0, 0, 0) >=
-+			0) ? YAFFS_OK : YAFFS_FAIL;
-+	} else {
-+		retVal = YAFFS_OK;
-+	}
-+
-+	return retVal;
-+
-+}
-+
-+static int yaffs_DoGenericObjectDeletion(yaffs_Object *in)
-+{
-+
-+	/* First off, invalidate the file's data in the cache, without flushing. */
-+	yaffs_InvalidateWholeChunkCache(in);
-+
-+	if (in->myDev->isYaffs2 && (in->parent != in->myDev->deletedDir)) {
-+		/* Move to the unlinked directory so we have a record that it was deleted. */
-+		yaffs_ChangeObjectName(in, in->myDev->deletedDir, _Y("deleted"), 0, 0);
-+
-+	}
-+
-+	yaffs_RemoveObjectFromDirectory(in);
-+	yaffs_DeleteChunk(in->myDev, in->hdrChunk, 1, __LINE__);
-+	in->hdrChunk = 0;
-+
-+	yaffs_FreeObject(in);
-+	return YAFFS_OK;
-+
-+}
-+
-+/* yaffs_DeleteFile deletes the whole file data
-+ * and the inode associated with the file.
-+ * It does not delete the links associated with the file.
-+ */
-+static int yaffs_UnlinkFileIfNeeded(yaffs_Object *in)
-+{
-+
-+	int retVal;
-+	int immediateDeletion = 0;
-+
-+#ifdef __KERNEL__
-+	if (!in->myInode)
-+		immediateDeletion = 1;
-+#else
-+	if (in->inUse <= 0)
-+		immediateDeletion = 1;
-+#endif
-+
-+	if (immediateDeletion) {
-+		retVal =
-+		    yaffs_ChangeObjectName(in, in->myDev->deletedDir,
-+					   _Y("deleted"), 0, 0);
-+		T(YAFFS_TRACE_TRACING,
-+		  (TSTR("yaffs: immediate deletion of file %d" TENDSTR),
-+		   in->objectId));
-+		in->deleted = 1;
-+		in->myDev->nDeletedFiles++;
-+		if (1 || in->myDev->isYaffs2)
-+			yaffs_ResizeFile(in, 0);
-+		yaffs_SoftDeleteFile(in);
-+	} else {
-+		retVal =
-+		    yaffs_ChangeObjectName(in, in->myDev->unlinkedDir,
-+					   _Y("unlinked"), 0, 0);
-+	}
-+
-+
-+	return retVal;
-+}
-+
-+int yaffs_DeleteFile(yaffs_Object *in)
-+{
-+	int retVal = YAFFS_OK;
-+	int deleted = in->deleted;
-+
-+	yaffs_ResizeFile(in, 0);
-+
-+	if (in->nDataChunks > 0) {
-+		/* Use soft deletion if there is data in the file.
-+		 * That won't be the case if it has been resized to zero.
-+		 */
-+		if (!in->unlinked)
-+			retVal = yaffs_UnlinkFileIfNeeded(in);
-+
-+		if (retVal == YAFFS_OK && in->unlinked && !in->deleted) {
-+			in->deleted = 1;
-+			deleted = 1;
-+			in->myDev->nDeletedFiles++;
-+			yaffs_SoftDeleteFile(in);
-+		}
-+		return deleted ? YAFFS_OK : YAFFS_FAIL;
-+	} else {
-+		/* The file has no data chunks so we toss it immediately */
-+		yaffs_FreeTnode(in->myDev, in->variant.fileVariant.top);
-+		in->variant.fileVariant.top = NULL;
-+		yaffs_DoGenericObjectDeletion(in);
-+
-+		return YAFFS_OK;
-+	}
-+}
-+
-+static int yaffs_DeleteDirectory(yaffs_Object *in)
-+{
-+	/* First check that the directory is empty. */
-+	if (ylist_empty(&in->variant.directoryVariant.children))
-+		return yaffs_DoGenericObjectDeletion(in);
-+
-+	return YAFFS_FAIL;
-+
-+}
-+
-+static int yaffs_DeleteSymLink(yaffs_Object *in)
-+{
-+	YFREE(in->variant.symLinkVariant.alias);
-+
-+	return yaffs_DoGenericObjectDeletion(in);
-+}
-+
-+static int yaffs_DeleteHardLink(yaffs_Object *in)
-+{
-+	/* remove this hardlink from the list assocaited with the equivalent
-+	 * object
-+	 */
-+	ylist_del_init(&in->hardLinks);
-+	return yaffs_DoGenericObjectDeletion(in);
-+}
-+
-+int yaffs_DeleteObject(yaffs_Object *obj)
-+{
-+int retVal = -1;
-+	switch (obj->variantType) {
-+	case YAFFS_OBJECT_TYPE_FILE:
-+		retVal = yaffs_DeleteFile(obj);
-+		break;
-+	case YAFFS_OBJECT_TYPE_DIRECTORY:
-+		return yaffs_DeleteDirectory(obj);
-+		break;
-+	case YAFFS_OBJECT_TYPE_SYMLINK:
-+		retVal = yaffs_DeleteSymLink(obj);
-+		break;
-+	case YAFFS_OBJECT_TYPE_HARDLINK:
-+		retVal = yaffs_DeleteHardLink(obj);
-+		break;
-+	case YAFFS_OBJECT_TYPE_SPECIAL:
-+		retVal = yaffs_DoGenericObjectDeletion(obj);
-+		break;
-+	case YAFFS_OBJECT_TYPE_UNKNOWN:
-+		retVal = 0;
-+		break;		/* should not happen. */
-+	}
-+
-+	return retVal;
-+}
-+
-+static int yaffs_UnlinkWorker(yaffs_Object *obj)
-+{
-+
-+	int immediateDeletion = 0;
-+
-+#ifdef __KERNEL__
-+	if (!obj->myInode)
-+		immediateDeletion = 1;
-+#else
-+	if (obj->inUse <= 0)
-+		immediateDeletion = 1;
-+#endif
-+
-+	if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) {
-+		return yaffs_DeleteHardLink(obj);
-+	} else if (!ylist_empty(&obj->hardLinks)) {
-+		/* Curve ball: We're unlinking an object that has a hardlink.
-+		 *
-+		 * This problem arises because we are not strictly following
-+		 * The Linux link/inode model.
-+		 *
-+		 * We can't really delete the object.
-+		 * Instead, we do the following:
-+		 * - Select a hardlink.
-+		 * - Unhook it from the hard links
-+		 * - Unhook it from its parent directory (so that the rename can work)
-+		 * - Rename the object to the hardlink's name.
-+		 * - Delete the hardlink
-+		 */
-+
-+		yaffs_Object *hl;
-+		int retVal;
-+		YCHAR name[YAFFS_MAX_NAME_LENGTH + 1];
-+
-+		hl = ylist_entry(obj->hardLinks.next, yaffs_Object, hardLinks);
-+
-+		ylist_del_init(&hl->hardLinks);
-+		ylist_del_init(&hl->siblings);
-+
-+		yaffs_GetObjectName(hl, name, YAFFS_MAX_NAME_LENGTH + 1);
-+
-+		retVal = yaffs_ChangeObjectName(obj, hl->parent, name, 0, 0);
-+
-+		if (retVal == YAFFS_OK)
-+			retVal = yaffs_DoGenericObjectDeletion(hl);
-+
-+		return retVal;
-+
-+	} else if (immediateDeletion) {
-+		switch (obj->variantType) {
-+		case YAFFS_OBJECT_TYPE_FILE:
-+			return yaffs_DeleteFile(obj);
-+			break;
-+		case YAFFS_OBJECT_TYPE_DIRECTORY:
-+			return yaffs_DeleteDirectory(obj);
-+			break;
-+		case YAFFS_OBJECT_TYPE_SYMLINK:
-+			return yaffs_DeleteSymLink(obj);
-+			break;
-+		case YAFFS_OBJECT_TYPE_SPECIAL:
-+			return yaffs_DoGenericObjectDeletion(obj);
-+			break;
-+		case YAFFS_OBJECT_TYPE_HARDLINK:
-+		case YAFFS_OBJECT_TYPE_UNKNOWN:
-+		default:
-+			return YAFFS_FAIL;
-+		}
-+	} else
-+		return yaffs_ChangeObjectName(obj, obj->myDev->unlinkedDir,
-+					   _Y("unlinked"), 0, 0);
-+}
-+
-+
-+static int yaffs_UnlinkObject(yaffs_Object *obj)
-+{
-+
-+	if (obj && obj->unlinkAllowed)
-+		return yaffs_UnlinkWorker(obj);
-+
-+	return YAFFS_FAIL;
-+
-+}
-+int yaffs_Unlink(yaffs_Object *dir, const YCHAR *name)
-+{
-+	yaffs_Object *obj;
-+
-+	obj = yaffs_FindObjectByName(dir, name);
-+	return yaffs_UnlinkObject(obj);
-+}
-+
-+/*----------------------- Initialisation Scanning ---------------------- */
-+
-+static void yaffs_HandleShadowedObject(yaffs_Device *dev, int objId,
-+				int backwardScanning)
-+{
-+	yaffs_Object *obj;
-+
-+	if (!backwardScanning) {
-+		/* Handle YAFFS1 forward scanning case
-+		 * For YAFFS1 we always do the deletion
-+		 */
-+
-+	} else {
-+		/* Handle YAFFS2 case (backward scanning)
-+		 * If the shadowed object exists then ignore.
-+		 */
-+		if (yaffs_FindObjectByNumber(dev, objId))
-+			return;
-+	}
-+
-+	/* Let's create it (if it does not exist) assuming it is a file so that it can do shrinking etc.
-+	 * We put it in unlinked dir to be cleaned up after the scanning
-+	 */
-+	obj =
-+	    yaffs_FindOrCreateObjectByNumber(dev, objId,
-+					     YAFFS_OBJECT_TYPE_FILE);
-+	if (!obj)
-+		return;
-+	yaffs_AddObjectToDirectory(dev->unlinkedDir, obj);
-+	obj->variant.fileVariant.shrinkSize = 0;
-+	obj->valid = 1;		/* So that we don't read any other info for this file */
-+
-+}
-+
-+typedef struct {
-+	int seq;
-+	int block;
-+} yaffs_BlockIndex;
-+
-+
-+static void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList)
-+{
-+	yaffs_Object *hl;
-+	yaffs_Object *in;
-+
-+	while (hardList) {
-+		hl = hardList;
-+		hardList = (yaffs_Object *) (hardList->hardLinks.next);
-+
-+		in = yaffs_FindObjectByNumber(dev,
-+					      hl->variant.hardLinkVariant.
-+					      equivalentObjectId);
-+
-+		if (in) {
-+			/* Add the hardlink pointers */
-+			hl->variant.hardLinkVariant.equivalentObject = in;
-+			ylist_add(&hl->hardLinks, &in->hardLinks);
-+		} else {
-+			/* Todo Need to report/handle this better.
-+			 * Got a problem... hardlink to a non-existant object
-+			 */
-+			hl->variant.hardLinkVariant.equivalentObject = NULL;
-+			YINIT_LIST_HEAD(&hl->hardLinks);
-+
-+		}
-+	}
-+}
-+
-+
-+
-+
-+
-+static int ybicmp(const void *a, const void *b)
-+{
-+	register int aseq = ((yaffs_BlockIndex *)a)->seq;
-+	register int bseq = ((yaffs_BlockIndex *)b)->seq;
-+	register int ablock = ((yaffs_BlockIndex *)a)->block;
-+	register int bblock = ((yaffs_BlockIndex *)b)->block;
-+	if (aseq == bseq)
-+		return ablock - bblock;
-+	else
-+		return aseq - bseq;
-+}
-+
-+
-+struct yaffs_ShadowFixerStruct {
-+	int objectId;
-+	int shadowedId;
-+	struct yaffs_ShadowFixerStruct *next;
-+};
-+
-+
-+static void yaffs_StripDeletedObjects(yaffs_Device *dev)
-+{
-+	/*
-+	*  Sort out state of unlinked and deleted objects after scanning.
-+	*/
-+	struct ylist_head *i;
-+	struct ylist_head *n;
-+	yaffs_Object *l;
-+
-+	/* Soft delete all the unlinked files */
-+	ylist_for_each_safe(i, n,
-+		&dev->unlinkedDir->variant.directoryVariant.children) {
-+		if (i) {
-+			l = ylist_entry(i, yaffs_Object, siblings);
-+			yaffs_DeleteObject(l);
-+		}
-+	}
-+
-+	ylist_for_each_safe(i, n,
-+		&dev->deletedDir->variant.directoryVariant.children) {
-+		if (i) {
-+			l = ylist_entry(i, yaffs_Object, siblings);
-+			yaffs_DeleteObject(l);
-+		}
-+	}
-+
-+}
-+
-+static int yaffs_Scan(yaffs_Device *dev)
-+{
-+	yaffs_ExtendedTags tags;
-+	int blk;
-+	int blockIterator;
-+	int startIterator;
-+	int endIterator;
-+	int result;
-+
-+	int chunk;
-+	int c;
-+	int deleted;
-+	yaffs_BlockState state;
-+	yaffs_Object *hardList = NULL;
-+	yaffs_BlockInfo *bi;
-+	__u32 sequenceNumber;
-+	yaffs_ObjectHeader *oh;
-+	yaffs_Object *in;
-+	yaffs_Object *parent;
-+
-+	int alloc_failed = 0;
-+
-+	struct yaffs_ShadowFixerStruct *shadowFixerList = NULL;
-+
-+
-+	__u8 *chunkData;
-+
-+
-+
-+	T(YAFFS_TRACE_SCAN,
-+	  (TSTR("yaffs_Scan starts  intstartblk %d intendblk %d..." TENDSTR),
-+	   dev->internalStartBlock, dev->internalEndBlock));
-+
-+	chunkData = yaffs_GetTempBuffer(dev, __LINE__);
-+
-+	dev->sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER;
-+
-+	/* Scan all the blocks to determine their state */
-+	for (blk = dev->internalStartBlock; blk <= dev->internalEndBlock; blk++) {
-+		bi = yaffs_GetBlockInfo(dev, blk);
-+		yaffs_ClearChunkBits(dev, blk);
-+		bi->pagesInUse = 0;
-+		bi->softDeletions = 0;
-+
-+		yaffs_QueryInitialBlockState(dev, blk, &state, &sequenceNumber);
-+
-+		bi->blockState = state;
-+		bi->sequenceNumber = sequenceNumber;
-+
-+		if (bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK)
-+			bi->blockState = state = YAFFS_BLOCK_STATE_DEAD;
-+
-+		T(YAFFS_TRACE_SCAN_DEBUG,
-+		  (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk,
-+		   state, sequenceNumber));
-+
-+		if (state == YAFFS_BLOCK_STATE_DEAD) {
-+			T(YAFFS_TRACE_BAD_BLOCKS,
-+			  (TSTR("block %d is bad" TENDSTR), blk));
-+		} else if (state == YAFFS_BLOCK_STATE_EMPTY) {
-+			T(YAFFS_TRACE_SCAN_DEBUG,
-+			  (TSTR("Block empty " TENDSTR)));
-+			dev->nErasedBlocks++;
-+			dev->nFreeChunks += dev->nChunksPerBlock;
-+		}
-+	}
-+
-+	startIterator = dev->internalStartBlock;
-+	endIterator = dev->internalEndBlock;
-+
-+	/* For each block.... */
-+	for (blockIterator = startIterator; !alloc_failed && blockIterator <= endIterator;
-+	     blockIterator++) {
-+
-+		YYIELD();
-+
-+		YYIELD();
-+
-+		blk = blockIterator;
-+
-+		bi = yaffs_GetBlockInfo(dev, blk);
-+		state = bi->blockState;
-+
-+		deleted = 0;
-+
-+		/* For each chunk in each block that needs scanning....*/
-+		for (c = 0; !alloc_failed && c < dev->nChunksPerBlock &&
-+		     state == YAFFS_BLOCK_STATE_NEEDS_SCANNING; c++) {
-+			/* Read the tags and decide what to do */
-+			chunk = blk * dev->nChunksPerBlock + c;
-+
-+			result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk, NULL,
-+							&tags);
-+
-+			/* Let's have a good look at this chunk... */
-+
-+			if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED || tags.chunkDeleted) {
-+				/* YAFFS1 only...
-+				 * A deleted chunk
-+				 */
-+				deleted++;
-+				dev->nFreeChunks++;
-+				/*T((" %d %d deleted\n",blk,c)); */
-+			} else if (!tags.chunkUsed) {
-+				/* An unassigned chunk in the block
-+				 * This means that either the block is empty or
-+				 * this is the one being allocated from
-+				 */
-+
-+				if (c == 0) {
-+					/* We're looking at the first chunk in the block so the block is unused */
-+					state = YAFFS_BLOCK_STATE_EMPTY;
-+					dev->nErasedBlocks++;
-+				} else {
-+					/* this is the block being allocated from */
-+					T(YAFFS_TRACE_SCAN,
-+					  (TSTR
-+					   (" Allocating from %d %d" TENDSTR),
-+					   blk, c));
-+					state = YAFFS_BLOCK_STATE_ALLOCATING;
-+					dev->allocationBlock = blk;
-+					dev->allocationPage = c;
-+					dev->allocationBlockFinder = blk;
-+					/* Set it to here to encourage the allocator to go forth from here. */
-+
-+				}
-+
-+				dev->nFreeChunks += (dev->nChunksPerBlock - c);
-+			} else if (tags.chunkId > 0) {
-+				/* chunkId > 0 so it is a data chunk... */
-+				unsigned int endpos;
-+
-+				yaffs_SetChunkBit(dev, blk, c);
-+				bi->pagesInUse++;
-+
-+				in = yaffs_FindOrCreateObjectByNumber(dev,
-+								      tags.
-+								      objectId,
-+								      YAFFS_OBJECT_TYPE_FILE);
-+				/* PutChunkIntoFile checks for a clash (two data chunks with
-+				 * the same chunkId).
-+				 */
-+
-+				if (!in)
-+					alloc_failed = 1;
-+
-+				if (in) {
-+					if (!yaffs_PutChunkIntoFile(in, tags.chunkId, chunk, 1))
-+						alloc_failed = 1;
-+				}
-+
-+				endpos =
-+				    (tags.chunkId - 1) * dev->nDataBytesPerChunk +
-+				    tags.byteCount;
-+				if (in &&
-+				    in->variantType == YAFFS_OBJECT_TYPE_FILE
-+				    && in->variant.fileVariant.scannedFileSize <
-+				    endpos) {
-+					in->variant.fileVariant.
-+					    scannedFileSize = endpos;
-+					if (!dev->useHeaderFileSize) {
-+						in->variant.fileVariant.
-+						    fileSize =
-+						    in->variant.fileVariant.
-+						    scannedFileSize;
-+					}
-+
-+				}
-+				/* T((" %d %d data %d %d\n",blk,c,tags.objectId,tags.chunkId));   */
-+			} else {
-+				/* chunkId == 0, so it is an ObjectHeader.
-+				 * Thus, we read in the object header and make the object
-+				 */
-+				yaffs_SetChunkBit(dev, blk, c);
-+				bi->pagesInUse++;
-+
-+				result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk,
-+								chunkData,
-+								NULL);
-+
-+				oh = (yaffs_ObjectHeader *) chunkData;
-+
-+				in = yaffs_FindObjectByNumber(dev,
-+							      tags.objectId);
-+				if (in && in->variantType != oh->type) {
-+					/* This should not happen, but somehow
-+					 * Wev'e ended up with an objectId that has been reused but not yet
-+					 * deleted, and worse still it has changed type. Delete the old object.
-+					 */
-+
-+					yaffs_DeleteObject(in);
-+
-+					in = 0;
-+				}
-+
-+				in = yaffs_FindOrCreateObjectByNumber(dev,
-+								      tags.
-+								      objectId,
-+								      oh->type);
-+
-+				if (!in)
-+					alloc_failed = 1;
-+
-+				if (in && oh->shadowsObject > 0) {
-+
-+					struct yaffs_ShadowFixerStruct *fixer;
-+					fixer = YMALLOC(sizeof(struct yaffs_ShadowFixerStruct));
-+					if (fixer) {
-+						fixer->next = shadowFixerList;
-+						shadowFixerList = fixer;
-+						fixer->objectId = tags.objectId;
-+						fixer->shadowedId = oh->shadowsObject;
-+					}
-+
-+				}
-+
-+				if (in && in->valid) {
-+					/* We have already filled this one. We have a duplicate and need to resolve it. */
-+
-+					unsigned existingSerial = in->serial;
-+					unsigned newSerial = tags.serialNumber;
-+
-+					if (((existingSerial + 1) & 3) == newSerial) {
-+						/* Use new one - destroy the exisiting one */
-+						yaffs_DeleteChunk(dev,
-+								  in->hdrChunk,
-+								  1, __LINE__);
-+						in->valid = 0;
-+					} else {
-+						/* Use existing - destroy this one. */
-+						yaffs_DeleteChunk(dev, chunk, 1,
-+								  __LINE__);
-+					}
-+				}
-+
-+				if (in && !in->valid &&
-+				    (tags.objectId == YAFFS_OBJECTID_ROOT ||
-+				     tags.objectId == YAFFS_OBJECTID_LOSTNFOUND)) {
-+					/* We only load some info, don't fiddle with directory structure */
-+					in->valid = 1;
-+					in->variantType = oh->type;
-+
-+					in->yst_mode = oh->yst_mode;
-+#ifdef CONFIG_YAFFS_WINCE
-+					in->win_atime[0] = oh->win_atime[0];
-+					in->win_ctime[0] = oh->win_ctime[0];
-+					in->win_mtime[0] = oh->win_mtime[0];
-+					in->win_atime[1] = oh->win_atime[1];
-+					in->win_ctime[1] = oh->win_ctime[1];
-+					in->win_mtime[1] = oh->win_mtime[1];
-+#else
-+					in->yst_uid = oh->yst_uid;
-+					in->yst_gid = oh->yst_gid;
-+					in->yst_atime = oh->yst_atime;
-+					in->yst_mtime = oh->yst_mtime;
-+					in->yst_ctime = oh->yst_ctime;
-+					in->yst_rdev = oh->yst_rdev;
-+#endif
-+					in->hdrChunk = chunk;
-+					in->serial = tags.serialNumber;
-+
-+				} else if (in && !in->valid) {
-+					/* we need to load this info */
-+
-+					in->valid = 1;
-+					in->variantType = oh->type;
-+
-+					in->yst_mode = oh->yst_mode;
-+#ifdef CONFIG_YAFFS_WINCE
-+					in->win_atime[0] = oh->win_atime[0];
-+					in->win_ctime[0] = oh->win_ctime[0];
-+					in->win_mtime[0] = oh->win_mtime[0];
-+					in->win_atime[1] = oh->win_atime[1];
-+					in->win_ctime[1] = oh->win_ctime[1];
-+					in->win_mtime[1] = oh->win_mtime[1];
-+#else
-+					in->yst_uid = oh->yst_uid;
-+					in->yst_gid = oh->yst_gid;
-+					in->yst_atime = oh->yst_atime;
-+					in->yst_mtime = oh->yst_mtime;
-+					in->yst_ctime = oh->yst_ctime;
-+					in->yst_rdev = oh->yst_rdev;
-+#endif
-+					in->hdrChunk = chunk;
-+					in->serial = tags.serialNumber;
-+
-+					yaffs_SetObjectName(in, oh->name);
-+					in->dirty = 0;
-+
-+					/* directory stuff...
-+					 * hook up to parent
-+					 */
-+
-+					parent =
-+					    yaffs_FindOrCreateObjectByNumber
-+					    (dev, oh->parentObjectId,
-+					     YAFFS_OBJECT_TYPE_DIRECTORY);
-+					if (!parent)
-+						alloc_failed = 1;
-+					if (parent && parent->variantType ==
-+					    YAFFS_OBJECT_TYPE_UNKNOWN) {
-+						/* Set up as a directory */
-+						parent->variantType =
-+							YAFFS_OBJECT_TYPE_DIRECTORY;
-+						YINIT_LIST_HEAD(&parent->variant.
-+								directoryVariant.
-+								children);
-+					} else if (!parent || parent->variantType !=
-+						   YAFFS_OBJECT_TYPE_DIRECTORY) {
-+						/* Hoosterman, another problem....
-+						 * We're trying to use a non-directory as a directory
-+						 */
-+
-+						T(YAFFS_TRACE_ERROR,
-+						  (TSTR
-+						   ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found."
-+						    TENDSTR)));
-+						parent = dev->lostNFoundDir;
-+					}
-+
-+					yaffs_AddObjectToDirectory(parent, in);
-+
-+					if (0 && (parent == dev->deletedDir ||
-+						  parent == dev->unlinkedDir)) {
-+						in->deleted = 1;	/* If it is unlinked at start up then it wants deleting */
-+						dev->nDeletedFiles++;
-+					}
-+					/* Note re hardlinks.
-+					 * Since we might scan a hardlink before its equivalent object is scanned
-+					 * we put them all in a list.
-+					 * After scanning is complete, we should have all the objects, so we run through this
-+					 * list and fix up all the chains.
-+					 */
-+
-+					switch (in->variantType) {
-+					case YAFFS_OBJECT_TYPE_UNKNOWN:
-+						/* Todo got a problem */
-+						break;
-+					case YAFFS_OBJECT_TYPE_FILE:
-+						if (dev->useHeaderFileSize)
-+
-+							in->variant.fileVariant.
-+							    fileSize =
-+							    oh->fileSize;
-+
-+						break;
-+					case YAFFS_OBJECT_TYPE_HARDLINK:
-+						in->variant.hardLinkVariant.
-+							equivalentObjectId =
-+							oh->equivalentObjectId;
-+						in->hardLinks.next =
-+							(struct ylist_head *)
-+							hardList;
-+						hardList = in;
-+						break;
-+					case YAFFS_OBJECT_TYPE_DIRECTORY:
-+						/* Do nothing */
-+						break;
-+					case YAFFS_OBJECT_TYPE_SPECIAL:
-+						/* Do nothing */
-+						break;
-+					case YAFFS_OBJECT_TYPE_SYMLINK:
-+						in->variant.symLinkVariant.alias =
-+						    yaffs_CloneString(oh->alias);
-+						if (!in->variant.symLinkVariant.alias)
-+							alloc_failed = 1;
-+						break;
-+					}
-+
-+/*
-+					if (parent == dev->deletedDir) {
-+						yaffs_DestroyObject(in);
-+						bi->hasShrinkHeader = 1;
-+					}
-+*/
-+				}
-+			}
-+		}
-+
-+		if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) {
-+			/* If we got this far while scanning, then the block is fully allocated.*/
-+			state = YAFFS_BLOCK_STATE_FULL;
-+		}
-+
-+		bi->blockState = state;
-+
-+		/* Now let's see if it was dirty */
-+		if (bi->pagesInUse == 0 &&
-+		    !bi->hasShrinkHeader &&
-+		    bi->blockState == YAFFS_BLOCK_STATE_FULL) {
-+			yaffs_BlockBecameDirty(dev, blk);
-+		}
-+
-+	}
-+
-+
-+	/* Ok, we've done all the scanning.
-+	 * Fix up the hard link chains.
-+	 * We should now have scanned all the objects, now it's time to add these
-+	 * hardlinks.
-+	 */
-+
-+	yaffs_HardlinkFixup(dev, hardList);
-+
-+	/* Fix up any shadowed objects */
-+	{
-+		struct yaffs_ShadowFixerStruct *fixer;
-+		yaffs_Object *obj;
-+
-+		while (shadowFixerList) {
-+			fixer = shadowFixerList;
-+			shadowFixerList = fixer->next;
-+			/* Complete the rename transaction by deleting the shadowed object
-+			 * then setting the object header to unshadowed.
-+			 */
-+			obj = yaffs_FindObjectByNumber(dev, fixer->shadowedId);
-+			if (obj)
-+				yaffs_DeleteObject(obj);
-+
-+			obj = yaffs_FindObjectByNumber(dev, fixer->objectId);
-+
-+			if (obj)
-+				yaffs_UpdateObjectHeader(obj, NULL, 1, 0, 0);
-+
-+			YFREE(fixer);
-+		}
-+	}
-+
-+	yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__);
-+
-+	if (alloc_failed)
-+		return YAFFS_FAIL;
-+
-+	T(YAFFS_TRACE_SCAN, (TSTR("yaffs_Scan ends" TENDSTR)));
-+
-+
-+	return YAFFS_OK;
-+}
-+
-+static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in)
-+{
-+	__u8 *chunkData;
-+	yaffs_ObjectHeader *oh;
-+	yaffs_Device *dev;
-+	yaffs_ExtendedTags tags;
-+	int result;
-+	int alloc_failed = 0;
-+
-+	if (!in)
-+		return;
-+
-+	dev = in->myDev;
-+
-+#if 0
-+	T(YAFFS_TRACE_SCAN, (TSTR("details for object %d %s loaded" TENDSTR),
-+		in->objectId,
-+		in->lazyLoaded ? "not yet" : "already"));
-+#endif
-+
-+	if (in->lazyLoaded && in->hdrChunk > 0) {
-+		in->lazyLoaded = 0;
-+		chunkData = yaffs_GetTempBuffer(dev, __LINE__);
-+
-+		result = yaffs_ReadChunkWithTagsFromNAND(dev, in->hdrChunk, chunkData, &tags);
-+		oh = (yaffs_ObjectHeader *) chunkData;
-+
-+		in->yst_mode = oh->yst_mode;
-+#ifdef CONFIG_YAFFS_WINCE
-+		in->win_atime[0] = oh->win_atime[0];
-+		in->win_ctime[0] = oh->win_ctime[0];
-+		in->win_mtime[0] = oh->win_mtime[0];
-+		in->win_atime[1] = oh->win_atime[1];
-+		in->win_ctime[1] = oh->win_ctime[1];
-+		in->win_mtime[1] = oh->win_mtime[1];
-+#else
-+		in->yst_uid = oh->yst_uid;
-+		in->yst_gid = oh->yst_gid;
-+		in->yst_atime = oh->yst_atime;
-+		in->yst_mtime = oh->yst_mtime;
-+		in->yst_ctime = oh->yst_ctime;
-+		in->yst_rdev = oh->yst_rdev;
-+
-+#endif
-+		yaffs_SetObjectName(in, oh->name);
-+
-+		if (in->variantType == YAFFS_OBJECT_TYPE_SYMLINK) {
-+			in->variant.symLinkVariant.alias =
-+						    yaffs_CloneString(oh->alias);
-+			if (!in->variant.symLinkVariant.alias)
-+				alloc_failed = 1; /* Not returned to caller */
-+		}
-+
-+		yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__);
-+	}
-+}
-+
-+static int yaffs_ScanBackwards(yaffs_Device *dev)
-+{
-+	yaffs_ExtendedTags tags;
-+	int blk;
-+	int blockIterator;
-+	int startIterator;
-+	int endIterator;
-+	int nBlocksToScan = 0;
-+
-+	int chunk;
-+	int result;
-+	int c;
-+	int deleted;
-+	yaffs_BlockState state;
-+	yaffs_Object *hardList = NULL;
-+	yaffs_BlockInfo *bi;
-+	__u32 sequenceNumber;
-+	yaffs_ObjectHeader *oh;
-+	yaffs_Object *in;
-+	yaffs_Object *parent;
-+	int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1;
-+	int itsUnlinked;
-+	__u8 *chunkData;
-+
-+	int fileSize;
-+	int isShrink;
-+	int foundChunksInBlock;
-+	int equivalentObjectId;
-+	int alloc_failed = 0;
-+
-+
-+	yaffs_BlockIndex *blockIndex = NULL;
-+	int altBlockIndex = 0;
-+
-+	if (!dev->isYaffs2) {
-+		T(YAFFS_TRACE_SCAN,
-+		  (TSTR("yaffs_ScanBackwards is only for YAFFS2!" TENDSTR)));
-+		return YAFFS_FAIL;
-+	}
-+
-+	T(YAFFS_TRACE_SCAN,
-+	  (TSTR
-+	   ("yaffs_ScanBackwards starts  intstartblk %d intendblk %d..."
-+	    TENDSTR), dev->internalStartBlock, dev->internalEndBlock));
-+
-+
-+	dev->sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER;
-+
-+	blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex));
-+
-+	if (!blockIndex) {
-+		blockIndex = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockIndex));
-+		altBlockIndex = 1;
-+	}
-+
-+	if (!blockIndex) {
-+		T(YAFFS_TRACE_SCAN,
-+		  (TSTR("yaffs_Scan() could not allocate block index!" TENDSTR)));
-+		return YAFFS_FAIL;
-+	}
-+
-+	dev->blocksInCheckpoint = 0;
-+
-+	chunkData = yaffs_GetTempBuffer(dev, __LINE__);
-+
-+	/* Scan all the blocks to determine their state */
-+	for (blk = dev->internalStartBlock; blk <= dev->internalEndBlock; blk++) {
-+		bi = yaffs_GetBlockInfo(dev, blk);
-+		yaffs_ClearChunkBits(dev, blk);
-+		bi->pagesInUse = 0;
-+		bi->softDeletions = 0;
-+
-+		yaffs_QueryInitialBlockState(dev, blk, &state, &sequenceNumber);
-+
-+		bi->blockState = state;
-+		bi->sequenceNumber = sequenceNumber;
-+
-+		if (bi->sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA)
-+			bi->blockState = state = YAFFS_BLOCK_STATE_CHECKPOINT;
-+		if (bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK)
-+			bi->blockState = state = YAFFS_BLOCK_STATE_DEAD;
-+
-+		T(YAFFS_TRACE_SCAN_DEBUG,
-+		  (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk,
-+		   state, sequenceNumber));
-+
-+
-+		if (state == YAFFS_BLOCK_STATE_CHECKPOINT) {
-+			dev->blocksInCheckpoint++;
-+
-+		} else if (state == YAFFS_BLOCK_STATE_DEAD) {
-+			T(YAFFS_TRACE_BAD_BLOCKS,
-+			  (TSTR("block %d is bad" TENDSTR), blk));
-+		} else if (state == YAFFS_BLOCK_STATE_EMPTY) {
-+			T(YAFFS_TRACE_SCAN_DEBUG,
-+			  (TSTR("Block empty " TENDSTR)));
-+			dev->nErasedBlocks++;
-+			dev->nFreeChunks += dev->nChunksPerBlock;
-+		} else if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) {
-+
-+			/* Determine the highest sequence number */
-+			if (sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER &&
-+			    sequenceNumber < YAFFS_HIGHEST_SEQUENCE_NUMBER) {
-+
-+				blockIndex[nBlocksToScan].seq = sequenceNumber;
-+				blockIndex[nBlocksToScan].block = blk;
-+
-+				nBlocksToScan++;
-+
-+				if (sequenceNumber >= dev->sequenceNumber)
-+					dev->sequenceNumber = sequenceNumber;
-+			} else {
-+				/* TODO: Nasty sequence number! */
-+				T(YAFFS_TRACE_SCAN,
-+				  (TSTR
-+				   ("Block scanning block %d has bad sequence number %d"
-+				    TENDSTR), blk, sequenceNumber));
-+
-+			}
-+		}
-+	}
-+
-+	T(YAFFS_TRACE_SCAN,
-+	(TSTR("%d blocks to be sorted..." TENDSTR), nBlocksToScan));
-+
-+
-+
-+	YYIELD();
-+
-+	/* Sort the blocks */
-+#ifndef CONFIG_YAFFS_USE_OWN_SORT
-+	{
-+		/* Use qsort now. */
-+		yaffs_qsort(blockIndex, nBlocksToScan, sizeof(yaffs_BlockIndex), ybicmp);
-+	}
-+#else
-+	{
-+		/* Dungy old bubble sort... */
-+
-+		yaffs_BlockIndex temp;
-+		int i;
-+		int j;
-+
-+		for (i = 0; i < nBlocksToScan; i++)
-+			for (j = i + 1; j < nBlocksToScan; j++)
-+				if (blockIndex[i].seq > blockIndex[j].seq) {
-+					temp = blockIndex[j];
-+					blockIndex[j] = blockIndex[i];
-+					blockIndex[i] = temp;
-+				}
-+	}
-+#endif
-+
-+	YYIELD();
-+
-+	T(YAFFS_TRACE_SCAN, (TSTR("...done" TENDSTR)));
-+
-+	/* Now scan the blocks looking at the data. */
-+	startIterator = 0;
-+	endIterator = nBlocksToScan - 1;
-+	T(YAFFS_TRACE_SCAN_DEBUG,
-+	  (TSTR("%d blocks to be scanned" TENDSTR), nBlocksToScan));
-+
-+	/* For each block.... backwards */
-+	for (blockIterator = endIterator; !alloc_failed && blockIterator >= startIterator;
-+			blockIterator--) {
-+		/* Cooperative multitasking! This loop can run for so
-+		   long that watchdog timers expire. */
-+		YYIELD();
-+
-+		/* get the block to scan in the correct order */
-+		blk = blockIndex[blockIterator].block;
-+
-+		bi = yaffs_GetBlockInfo(dev, blk);
-+
-+
-+		state = bi->blockState;
-+
-+		deleted = 0;
-+
-+		/* For each chunk in each block that needs scanning.... */
-+		foundChunksInBlock = 0;
-+		for (c = dev->nChunksPerBlock - 1;
-+		     !alloc_failed && c >= 0 &&
-+		     (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING ||
-+		      state == YAFFS_BLOCK_STATE_ALLOCATING); c--) {
-+			/* Scan backwards...
-+			 * Read the tags and decide what to do
-+			 */
-+
-+			chunk = blk * dev->nChunksPerBlock + c;
-+
-+			result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk, NULL,
-+							&tags);
-+
-+			/* Let's have a good look at this chunk... */
-+
-+			if (!tags.chunkUsed) {
-+				/* An unassigned chunk in the block.
-+				 * If there are used chunks after this one, then
-+				 * it is a chunk that was skipped due to failing the erased
-+				 * check. Just skip it so that it can be deleted.
-+				 * But, more typically, We get here when this is an unallocated
-+				 * chunk and his means that either the block is empty or
-+				 * this is the one being allocated from
-+				 */
-+
-+				if (foundChunksInBlock) {
-+					/* This is a chunk that was skipped due to failing the erased check */
-+				} else if (c == 0) {
-+					/* We're looking at the first chunk in the block so the block is unused */
-+					state = YAFFS_BLOCK_STATE_EMPTY;
-+					dev->nErasedBlocks++;
-+				} else {
-+					if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING ||
-+					    state == YAFFS_BLOCK_STATE_ALLOCATING) {
-+						if (dev->sequenceNumber == bi->sequenceNumber) {
-+							/* this is the block being allocated from */
-+
-+							T(YAFFS_TRACE_SCAN,
-+							  (TSTR
-+							   (" Allocating from %d %d"
-+							    TENDSTR), blk, c));
-+
-+							state = YAFFS_BLOCK_STATE_ALLOCATING;
-+							dev->allocationBlock = blk;
-+							dev->allocationPage = c;
-+							dev->allocationBlockFinder = blk;
-+						} else {
-+							/* This is a partially written block that is not
-+							 * the current allocation block. This block must have
-+							 * had a write failure, so set up for retirement.
-+							 */
-+
-+							 /* bi->needsRetiring = 1; ??? TODO */
-+							 bi->gcPrioritise = 1;
-+
-+							 T(YAFFS_TRACE_ALWAYS,
-+							 (TSTR("Partially written block %d detected" TENDSTR),
-+							 blk));
-+						}
-+					}
-+				}
-+
-+				dev->nFreeChunks++;
-+
-+			} else if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED) {
-+				T(YAFFS_TRACE_SCAN,
-+				  (TSTR(" Unfixed ECC in chunk(%d:%d), chunk ignored"TENDSTR),
-+				  blk, c));
-+
-+				  dev->nFreeChunks++;
-+
-+			} else if (tags.chunkId > 0) {
-+				/* chunkId > 0 so it is a data chunk... */
-+				unsigned int endpos;
-+				__u32 chunkBase =
-+				    (tags.chunkId - 1) * dev->nDataBytesPerChunk;
-+
-+				foundChunksInBlock = 1;
-+
-+
-+				yaffs_SetChunkBit(dev, blk, c);
-+				bi->pagesInUse++;
-+
-+				in = yaffs_FindOrCreateObjectByNumber(dev,
-+								      tags.
-+								      objectId,
-+								      YAFFS_OBJECT_TYPE_FILE);
-+				if (!in) {
-+					/* Out of memory */
-+					alloc_failed = 1;
-+				}
-+
-+				if (in &&
-+				    in->variantType == YAFFS_OBJECT_TYPE_FILE
-+				    && chunkBase <
-+				    in->variant.fileVariant.shrinkSize) {
-+					/* This has not been invalidated by a resize */
-+					if (!yaffs_PutChunkIntoFile(in, tags.chunkId,
-+							       chunk, -1)) {
-+						alloc_failed = 1;
-+					}
-+
-+					/* File size is calculated by looking at the data chunks if we have not
-+					 * seen an object header yet. Stop this practice once we find an object header.
-+					 */
-+					endpos =
-+					    (tags.chunkId -
-+					     1) * dev->nDataBytesPerChunk +
-+					    tags.byteCount;
-+
-+					if (!in->valid &&	/* have not got an object header yet */
-+					    in->variant.fileVariant.
-+					    scannedFileSize < endpos) {
-+						in->variant.fileVariant.
-+						    scannedFileSize = endpos;
-+						in->variant.fileVariant.
-+						    fileSize =
-+						    in->variant.fileVariant.
-+						    scannedFileSize;
-+					}
-+
-+				} else if (in) {
-+					/* This chunk has been invalidated by a resize, so delete */
-+					yaffs_DeleteChunk(dev, chunk, 1, __LINE__);
-+
-+				}
-+			} else {
-+				/* chunkId == 0, so it is an ObjectHeader.
-+				 * Thus, we read in the object header and make the object
-+				 */
-+				foundChunksInBlock = 1;
-+
-+				yaffs_SetChunkBit(dev, blk, c);
-+				bi->pagesInUse++;
-+
-+				oh = NULL;
-+				in = NULL;
-+
-+				if (tags.extraHeaderInfoAvailable) {
-+					in = yaffs_FindOrCreateObjectByNumber
-+					    (dev, tags.objectId,
-+					     tags.extraObjectType);
-+					if (!in)
-+						alloc_failed = 1;
-+				}
-+
-+				if (!in ||
-+#ifdef CONFIG_YAFFS_DISABLE_LAZY_LOAD
-+				    !in->valid ||
-+#endif
-+				    tags.extraShadows ||
-+				    (!in->valid &&
-+				    (tags.objectId == YAFFS_OBJECTID_ROOT ||
-+				     tags.objectId == YAFFS_OBJECTID_LOSTNFOUND))) {
-+
-+					/* If we don't have  valid info then we need to read the chunk
-+					 * TODO In future we can probably defer reading the chunk and
-+					 * living with invalid data until needed.
-+					 */
-+
-+					result = yaffs_ReadChunkWithTagsFromNAND(dev,
-+									chunk,
-+									chunkData,
-+									NULL);
-+
-+					oh = (yaffs_ObjectHeader *) chunkData;
-+
-+					if (dev->inbandTags) {
-+						/* Fix up the header if they got corrupted by inband tags */
-+						oh->shadowsObject = oh->inbandShadowsObject;
-+						oh->isShrink = oh->inbandIsShrink;
-+					}
-+
-+					if (!in) {
-+						in = yaffs_FindOrCreateObjectByNumber(dev, tags.objectId, oh->type);
-+						if (!in)
-+							alloc_failed = 1;
-+					}
-+
-+				}
-+
-+				if (!in) {
-+					/* TODO Hoosterman we have a problem! */
-+					T(YAFFS_TRACE_ERROR,
-+					  (TSTR
-+					   ("yaffs tragedy: Could not make object for object  %d at chunk %d during scan"
-+					    TENDSTR), tags.objectId, chunk));
-+					continue;
-+				}
-+
-+				if (in->valid) {
-+					/* We have already filled this one.
-+					 * We have a duplicate that will be discarded, but
-+					 * we first have to suck out resize info if it is a file.
-+					 */
-+
-+					if ((in->variantType == YAFFS_OBJECT_TYPE_FILE) &&
-+					     ((oh &&
-+					       oh->type == YAFFS_OBJECT_TYPE_FILE) ||
-+					      (tags.extraHeaderInfoAvailable  &&
-+					       tags.extraObjectType == YAFFS_OBJECT_TYPE_FILE))) {
-+						__u32 thisSize =
-+						    (oh) ? oh->fileSize : tags.
-+						    extraFileLength;
-+						__u32 parentObjectId =
-+						    (oh) ? oh->
-+						    parentObjectId : tags.
-+						    extraParentObjectId;
-+
-+
-+						isShrink =
-+						    (oh) ? oh->isShrink : tags.
-+						    extraIsShrinkHeader;
-+
-+						/* If it is deleted (unlinked at start also means deleted)
-+						 * we treat the file size as being zeroed at this point.
-+						 */
-+						if (parentObjectId ==
-+						    YAFFS_OBJECTID_DELETED
-+						    || parentObjectId ==
-+						    YAFFS_OBJECTID_UNLINKED) {
-+							thisSize = 0;
-+							isShrink = 1;
-+						}
-+
-+						if (isShrink &&
-+						    in->variant.fileVariant.
-+						    shrinkSize > thisSize) {
-+							in->variant.fileVariant.
-+							    shrinkSize =
-+							    thisSize;
-+						}
-+
-+						if (isShrink)
-+							bi->hasShrinkHeader = 1;
-+
-+					}
-+					/* Use existing - destroy this one. */
-+					yaffs_DeleteChunk(dev, chunk, 1, __LINE__);
-+
-+				}
-+
-+				if (!in->valid && in->variantType !=
-+				    (oh ? oh->type : tags.extraObjectType))
-+					T(YAFFS_TRACE_ERROR, (
-+						TSTR("yaffs tragedy: Bad object type, "
-+					    TCONT("%d != %d, for object %d at chunk ")
-+					    TCONT("%d during scan")
-+						TENDSTR), oh ?
-+					    oh->type : tags.extraObjectType,
-+					    in->variantType, tags.objectId,
-+					    chunk));
-+
-+				if (!in->valid &&
-+				    (tags.objectId == YAFFS_OBJECTID_ROOT ||
-+				     tags.objectId ==
-+				     YAFFS_OBJECTID_LOSTNFOUND)) {
-+					/* We only load some info, don't fiddle with directory structure */
-+					in->valid = 1;
-+
-+					if (oh) {
-+						in->variantType = oh->type;
-+
-+						in->yst_mode = oh->yst_mode;
-+#ifdef CONFIG_YAFFS_WINCE
-+						in->win_atime[0] = oh->win_atime[0];
-+						in->win_ctime[0] = oh->win_ctime[0];
-+						in->win_mtime[0] = oh->win_mtime[0];
-+						in->win_atime[1] = oh->win_atime[1];
-+						in->win_ctime[1] = oh->win_ctime[1];
-+						in->win_mtime[1] = oh->win_mtime[1];
-+#else
-+						in->yst_uid = oh->yst_uid;
-+						in->yst_gid = oh->yst_gid;
-+						in->yst_atime = oh->yst_atime;
-+						in->yst_mtime = oh->yst_mtime;
-+						in->yst_ctime = oh->yst_ctime;
-+						in->yst_rdev = oh->yst_rdev;
-+
-+#endif
-+					} else {
-+						in->variantType = tags.extraObjectType;
-+						in->lazyLoaded = 1;
-+					}
-+
-+					in->hdrChunk = chunk;
-+
-+				} else if (!in->valid) {
-+					/* we need to load this info */
-+
-+					in->valid = 1;
-+					in->hdrChunk = chunk;
-+
-+					if (oh) {
-+						in->variantType = oh->type;
-+
-+						in->yst_mode = oh->yst_mode;
-+#ifdef CONFIG_YAFFS_WINCE
-+						in->win_atime[0] = oh->win_atime[0];
-+						in->win_ctime[0] = oh->win_ctime[0];
-+						in->win_mtime[0] = oh->win_mtime[0];
-+						in->win_atime[1] = oh->win_atime[1];
-+						in->win_ctime[1] = oh->win_ctime[1];
-+						in->win_mtime[1] = oh->win_mtime[1];
-+#else
-+						in->yst_uid = oh->yst_uid;
-+						in->yst_gid = oh->yst_gid;
-+						in->yst_atime = oh->yst_atime;
-+						in->yst_mtime = oh->yst_mtime;
-+						in->yst_ctime = oh->yst_ctime;
-+						in->yst_rdev = oh->yst_rdev;
-+#endif
-+
-+						if (oh->shadowsObject > 0)
-+							yaffs_HandleShadowedObject(dev,
-+									   oh->
-+									   shadowsObject,
-+									   1);
-+
-+
-+						yaffs_SetObjectName(in, oh->name);
-+						parent =
-+						    yaffs_FindOrCreateObjectByNumber
-+							(dev, oh->parentObjectId,
-+							 YAFFS_OBJECT_TYPE_DIRECTORY);
-+
-+						 fileSize = oh->fileSize;
-+						 isShrink = oh->isShrink;
-+						 equivalentObjectId = oh->equivalentObjectId;
-+
-+					} else {
-+						in->variantType = tags.extraObjectType;
-+						parent =
-+						    yaffs_FindOrCreateObjectByNumber
-+							(dev, tags.extraParentObjectId,
-+							 YAFFS_OBJECT_TYPE_DIRECTORY);
-+						 fileSize = tags.extraFileLength;
-+						 isShrink = tags.extraIsShrinkHeader;
-+						 equivalentObjectId = tags.extraEquivalentObjectId;
-+						in->lazyLoaded = 1;
-+
-+					}
-+					in->dirty = 0;
-+
-+					if (!parent)
-+						alloc_failed = 1;
-+
-+					/* directory stuff...
-+					 * hook up to parent
-+					 */
-+
-+					if (parent && parent->variantType ==
-+					    YAFFS_OBJECT_TYPE_UNKNOWN) {
-+						/* Set up as a directory */
-+						parent->variantType =
-+							YAFFS_OBJECT_TYPE_DIRECTORY;
-+						YINIT_LIST_HEAD(&parent->variant.
-+							directoryVariant.
-+							children);
-+					} else if (!parent || parent->variantType !=
-+						   YAFFS_OBJECT_TYPE_DIRECTORY) {
-+						/* Hoosterman, another problem....
-+						 * We're trying to use a non-directory as a directory
-+						 */
-+
-+						T(YAFFS_TRACE_ERROR,
-+						  (TSTR
-+						   ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found."
-+						    TENDSTR)));
-+						parent = dev->lostNFoundDir;
-+					}
-+
-+					yaffs_AddObjectToDirectory(parent, in);
-+
-+					itsUnlinked = (parent == dev->deletedDir) ||
-+						      (parent == dev->unlinkedDir);
-+
-+					if (isShrink) {
-+						/* Mark the block as having a shrinkHeader */
-+						bi->hasShrinkHeader = 1;
-+					}
-+
-+					/* Note re hardlinks.
-+					 * Since we might scan a hardlink before its equivalent object is scanned
-+					 * we put them all in a list.
-+					 * After scanning is complete, we should have all the objects, so we run
-+					 * through this list and fix up all the chains.
-+					 */
-+
-+					switch (in->variantType) {
-+					case YAFFS_OBJECT_TYPE_UNKNOWN:
-+						/* Todo got a problem */
-+						break;
-+					case YAFFS_OBJECT_TYPE_FILE:
-+
-+						if (in->variant.fileVariant.
-+						    scannedFileSize < fileSize) {
-+							/* This covers the case where the file size is greater
-+							 * than where the data is
-+							 * This will happen if the file is resized to be larger
-+							 * than its current data extents.
-+							 */
-+							in->variant.fileVariant.fileSize = fileSize;
-+							in->variant.fileVariant.scannedFileSize =
-+							    in->variant.fileVariant.fileSize;
-+						}
-+
-+						if (isShrink &&
-+						    in->variant.fileVariant.shrinkSize > fileSize) {
-+							in->variant.fileVariant.shrinkSize = fileSize;
-+						}
-+
-+						break;
-+					case YAFFS_OBJECT_TYPE_HARDLINK:
-+						if (!itsUnlinked) {
-+							in->variant.hardLinkVariant.equivalentObjectId =
-+								equivalentObjectId;
-+							in->hardLinks.next =
-+								(struct ylist_head *) hardList;
-+							hardList = in;
-+						}
-+						break;
-+					case YAFFS_OBJECT_TYPE_DIRECTORY:
-+						/* Do nothing */
-+						break;
-+					case YAFFS_OBJECT_TYPE_SPECIAL:
-+						/* Do nothing */
-+						break;
-+					case YAFFS_OBJECT_TYPE_SYMLINK:
-+						if (oh) {
-+							in->variant.symLinkVariant.alias =
-+								yaffs_CloneString(oh->alias);
-+							if (!in->variant.symLinkVariant.alias)
-+								alloc_failed = 1;
-+						}
-+						break;
-+					}
-+
-+				}
-+
-+			}
-+
-+		} /* End of scanning for each chunk */
-+
-+		if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) {
-+			/* If we got this far while scanning, then the block is fully allocated. */
-+			state = YAFFS_BLOCK_STATE_FULL;
-+		}
-+
-+		bi->blockState = state;
-+
-+		/* Now let's see if it was dirty */
-+		if (bi->pagesInUse == 0 &&
-+		    !bi->hasShrinkHeader &&
-+		    bi->blockState == YAFFS_BLOCK_STATE_FULL) {
-+			yaffs_BlockBecameDirty(dev, blk);
-+		}
-+
-+	}
-+
-+	if (altBlockIndex)
-+		YFREE_ALT(blockIndex);
-+	else
-+		YFREE(blockIndex);
-+
-+	/* Ok, we've done all the scanning.
-+	 * Fix up the hard link chains.
-+	 * We should now have scanned all the objects, now it's time to add these
-+	 * hardlinks.
-+	 */
-+	yaffs_HardlinkFixup(dev, hardList);
-+
-+
-+	yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__);
-+
-+	if (alloc_failed)
-+		return YAFFS_FAIL;
-+
-+	T(YAFFS_TRACE_SCAN, (TSTR("yaffs_ScanBackwards ends" TENDSTR)));
-+
-+	return YAFFS_OK;
-+}
-+
-+/*------------------------------  Directory Functions ----------------------------- */
-+
-+static void yaffs_VerifyObjectInDirectory(yaffs_Object *obj)
-+{
-+	struct ylist_head *lh;
-+	yaffs_Object *listObj;
-+
-+	int count = 0;
-+
-+	if (!obj) {
-+		T(YAFFS_TRACE_ALWAYS, (TSTR("No object to verify" TENDSTR)));
-+		YBUG();
-+		return;
-+	}
-+
-+	if (yaffs_SkipVerification(obj->myDev))
-+		return;
-+
-+	if (!obj->parent) {
-+		T(YAFFS_TRACE_ALWAYS, (TSTR("Object does not have parent" TENDSTR)));
-+		YBUG();
-+		return;
-+	}
-+
-+	if (obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
-+		T(YAFFS_TRACE_ALWAYS, (TSTR("Parent is not directory" TENDSTR)));
-+		YBUG();
-+	}
-+
-+	/* Iterate through the objects in each hash entry */
-+
-+	ylist_for_each(lh, &obj->parent->variant.directoryVariant.children) {
-+		if (lh) {
-+			listObj = ylist_entry(lh, yaffs_Object, siblings);
-+			yaffs_VerifyObject(listObj);
-+			if (obj == listObj)
-+				count++;
-+		}
-+	 }
-+
-+	if (count != 1) {
-+		T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory %d times" TENDSTR), count));
-+		YBUG();
-+	}
-+}
-+
-+static void yaffs_VerifyDirectory(yaffs_Object *directory)
-+{
-+	struct ylist_head *lh;
-+	yaffs_Object *listObj;
-+
-+	if (!directory) {
-+		YBUG();
-+		return;
-+	}
-+
-+	if (yaffs_SkipFullVerification(directory->myDev))
-+		return;
-+
-+	if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
-+		T(YAFFS_TRACE_ALWAYS, (TSTR("Directory has wrong type: %d" TENDSTR), directory->variantType));
-+		YBUG();
-+	}
-+
-+	/* Iterate through the objects in each hash entry */
-+
-+	ylist_for_each(lh, &directory->variant.directoryVariant.children) {
-+		if (lh) {
-+			listObj = ylist_entry(lh, yaffs_Object, siblings);
-+			if (listObj->parent != directory) {
-+				T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory list has wrong parent %p" TENDSTR), listObj->parent));
-+				YBUG();
-+			}
-+			yaffs_VerifyObjectInDirectory(listObj);
-+		}
-+	}
-+}
-+
-+
-+static void yaffs_RemoveObjectFromDirectory(yaffs_Object *obj)
-+{
-+	yaffs_Device *dev = obj->myDev;
-+	yaffs_Object *parent;
-+
-+	yaffs_VerifyObjectInDirectory(obj);
-+	parent = obj->parent;
-+
-+	yaffs_VerifyDirectory(parent);
-+
-+	if (dev && dev->removeObjectCallback)
-+		dev->removeObjectCallback(obj);
-+
-+
-+	ylist_del_init(&obj->siblings);
-+	obj->parent = NULL;
-+
-+	yaffs_VerifyDirectory(parent);
-+}
-+
-+
-+static void yaffs_AddObjectToDirectory(yaffs_Object *directory,
-+					yaffs_Object *obj)
-+{
-+	if (!directory) {
-+		T(YAFFS_TRACE_ALWAYS,
-+		  (TSTR
-+		   ("tragedy: Trying to add an object to a null pointer directory"
-+		    TENDSTR)));
-+		YBUG();
-+		return;
-+	}
-+	if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
-+		T(YAFFS_TRACE_ALWAYS,
-+		  (TSTR
-+		   ("tragedy: Trying to add an object to a non-directory"
-+		    TENDSTR)));
-+		YBUG();
-+	}
-+
-+	if (obj->siblings.prev == NULL) {
-+		/* Not initialised */
-+		YBUG();
-+	}
-+
-+
-+	yaffs_VerifyDirectory(directory);
-+
-+	yaffs_RemoveObjectFromDirectory(obj);
-+
-+
-+	/* Now add it */
-+	ylist_add(&obj->siblings, &directory->variant.directoryVariant.children);
-+	obj->parent = directory;
-+
-+	if (directory == obj->myDev->unlinkedDir
-+			|| directory == obj->myDev->deletedDir) {
-+		obj->unlinked = 1;
-+		obj->myDev->nUnlinkedFiles++;
-+		obj->renameAllowed = 0;
-+	}
-+
-+	yaffs_VerifyDirectory(directory);
-+	yaffs_VerifyObjectInDirectory(obj);
-+}
-+
-+yaffs_Object *yaffs_FindObjectByName(yaffs_Object *directory,
-+				     const YCHAR *name)
-+{
-+	int sum;
-+
-+	struct ylist_head *i;
-+	YCHAR buffer[YAFFS_MAX_NAME_LENGTH + 1];
-+
-+	yaffs_Object *l;
-+
-+	if (!name)
-+		return NULL;
-+
-+	if (!directory) {
-+		T(YAFFS_TRACE_ALWAYS,
-+		  (TSTR
-+		   ("tragedy: yaffs_FindObjectByName: null pointer directory"
-+		    TENDSTR)));
-+		YBUG();
-+		return NULL;
-+	}
-+	if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
-+		T(YAFFS_TRACE_ALWAYS,
-+		  (TSTR
-+		   ("tragedy: yaffs_FindObjectByName: non-directory" TENDSTR)));
-+		YBUG();
-+	}
-+
-+	sum = yaffs_CalcNameSum(name);
-+
-+	ylist_for_each(i, &directory->variant.directoryVariant.children) {
-+		if (i) {
-+			l = ylist_entry(i, yaffs_Object, siblings);
-+
-+			if (l->parent != directory)
-+				YBUG();
-+
-+			yaffs_CheckObjectDetailsLoaded(l);
-+
-+			/* Special case for lost-n-found */
-+			if (l->objectId == YAFFS_OBJECTID_LOSTNFOUND) {
-+				if (yaffs_strcmp(name, YAFFS_LOSTNFOUND_NAME) == 0)
-+					return l;
-+			} else if (yaffs_SumCompare(l->sum, sum) || l->hdrChunk <= 0) {
-+				/* LostnFound chunk called Objxxx
-+				 * Do a real check
-+				 */
-+				yaffs_GetObjectName(l, buffer,
-+						    YAFFS_MAX_NAME_LENGTH);
-+				if (yaffs_strncmp(name, buffer, YAFFS_MAX_NAME_LENGTH) == 0)
-+					return l;
-+			}
-+		}
-+	}
-+
-+	return NULL;
-+}
-+
-+
-+#if 0
-+int yaffs_ApplyToDirectoryChildren(yaffs_Object *theDir,
-+					int (*fn) (yaffs_Object *))
-+{
-+	struct ylist_head *i;
-+	yaffs_Object *l;
-+
-+	if (!theDir) {
-+		T(YAFFS_TRACE_ALWAYS,
-+		  (TSTR
-+		   ("tragedy: yaffs_FindObjectByName: null pointer directory"
-+		    TENDSTR)));
-+		YBUG();
-+		return YAFFS_FAIL;
-+	}
-+	if (theDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
-+		T(YAFFS_TRACE_ALWAYS,
-+		  (TSTR
-+		   ("tragedy: yaffs_FindObjectByName: non-directory" TENDSTR)));
-+		YBUG();
-+		return YAFFS_FAIL;
-+	}
-+
-+	ylist_for_each(i, &theDir->variant.directoryVariant.children) {
-+		if (i) {
-+			l = ylist_entry(i, yaffs_Object, siblings);
-+			if (l && !fn(l))
-+				return YAFFS_FAIL;
-+		}
-+	}
-+
-+	return YAFFS_OK;
-+
-+}
-+#endif
-+
-+/* GetEquivalentObject dereferences any hard links to get to the
-+ * actual object.
-+ */
-+
-+yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object *obj)
-+{
-+	if (obj && obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) {
-+		/* We want the object id of the equivalent object, not this one */
-+		obj = obj->variant.hardLinkVariant.equivalentObject;
-+		yaffs_CheckObjectDetailsLoaded(obj);
-+	}
-+	return obj;
-+}
-+
-+int yaffs_GetObjectName(yaffs_Object *obj, YCHAR *name, int buffSize)
-+{
-+	memset(name, 0, buffSize * sizeof(YCHAR));
-+
-+	yaffs_CheckObjectDetailsLoaded(obj);
-+
-+	if (obj->objectId == YAFFS_OBJECTID_LOSTNFOUND) {
-+		yaffs_strncpy(name, YAFFS_LOSTNFOUND_NAME, buffSize - 1);
-+	} else if (obj->hdrChunk <= 0) {
-+		YCHAR locName[20];
-+		YCHAR numString[20];
-+		YCHAR *x = &numString[19];
-+		unsigned v = obj->objectId;
-+		numString[19] = 0;
-+		while (v > 0) {
-+			x--;
-+			*x = '0' + (v % 10);
-+			v /= 10;
-+		}
-+		/* make up a name */
-+		yaffs_strcpy(locName, YAFFS_LOSTNFOUND_PREFIX);
-+		yaffs_strcat(locName, x);
-+		yaffs_strncpy(name, locName, buffSize - 1);
-+
-+	}
-+#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM
-+	else if (obj->shortName[0])
-+		yaffs_strcpy(name, obj->shortName);
-+#endif
-+	else {
-+		int result;
-+		__u8 *buffer = yaffs_GetTempBuffer(obj->myDev, __LINE__);
-+
-+		yaffs_ObjectHeader *oh = (yaffs_ObjectHeader *) buffer;
-+
-+		memset(buffer, 0, obj->myDev->nDataBytesPerChunk);
-+
-+		if (obj->hdrChunk > 0) {
-+			result = yaffs_ReadChunkWithTagsFromNAND(obj->myDev,
-+							obj->hdrChunk, buffer,
-+							NULL);
-+		}
-+		yaffs_strncpy(name, oh->name, buffSize - 1);
-+
-+		yaffs_ReleaseTempBuffer(obj->myDev, buffer, __LINE__);
-+	}
-+
-+	return yaffs_strlen(name);
-+}
-+
-+int yaffs_GetObjectFileLength(yaffs_Object *obj)
-+{
-+	/* Dereference any hard linking */
-+	obj = yaffs_GetEquivalentObject(obj);
-+
-+	if (obj->variantType == YAFFS_OBJECT_TYPE_FILE)
-+		return obj->variant.fileVariant.fileSize;
-+	if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK)
-+		return yaffs_strlen(obj->variant.symLinkVariant.alias);
-+	else {
-+		/* Only a directory should drop through to here */
-+		return obj->myDev->nDataBytesPerChunk;
-+	}
-+}
-+
-+int yaffs_GetObjectLinkCount(yaffs_Object *obj)
-+{
-+	int count = 0;
-+	struct ylist_head *i;
-+
-+	if (!obj->unlinked)
-+		count++;		/* the object itself */
-+
-+	ylist_for_each(i, &obj->hardLinks)
-+		count++;		/* add the hard links; */
-+
-+	return count;
-+}
-+
-+int yaffs_GetObjectInode(yaffs_Object *obj)
-+{
-+	obj = yaffs_GetEquivalentObject(obj);
-+
-+	return obj->objectId;
-+}
-+
-+unsigned yaffs_GetObjectType(yaffs_Object *obj)
-+{
-+	obj = yaffs_GetEquivalentObject(obj);
-+
-+	switch (obj->variantType) {
-+	case YAFFS_OBJECT_TYPE_FILE:
-+		return DT_REG;
-+		break;
-+	case YAFFS_OBJECT_TYPE_DIRECTORY:
-+		return DT_DIR;
-+		break;
-+	case YAFFS_OBJECT_TYPE_SYMLINK:
-+		return DT_LNK;
-+		break;
-+	case YAFFS_OBJECT_TYPE_HARDLINK:
-+		return DT_REG;
-+		break;
-+	case YAFFS_OBJECT_TYPE_SPECIAL:
-+		if (S_ISFIFO(obj->yst_mode))
-+			return DT_FIFO;
-+		if (S_ISCHR(obj->yst_mode))
-+			return DT_CHR;
-+		if (S_ISBLK(obj->yst_mode))
-+			return DT_BLK;
-+		if (S_ISSOCK(obj->yst_mode))
-+			return DT_SOCK;
-+	default:
-+		return DT_REG;
-+		break;
-+	}
-+}
-+
-+YCHAR *yaffs_GetSymlinkAlias(yaffs_Object *obj)
-+{
-+	obj = yaffs_GetEquivalentObject(obj);
-+	if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK)
-+		return yaffs_CloneString(obj->variant.symLinkVariant.alias);
-+	else
-+		return yaffs_CloneString(_Y(""));
-+}
-+
-+#ifndef CONFIG_YAFFS_WINCE
-+
-+int yaffs_SetAttributes(yaffs_Object *obj, struct iattr *attr)
-+{
-+	unsigned int valid = attr->ia_valid;
-+
-+	if (valid & ATTR_MODE)
-+		obj->yst_mode = attr->ia_mode;
-+	if (valid & ATTR_UID)
-+		obj->yst_uid = attr->ia_uid;
-+	if (valid & ATTR_GID)
-+		obj->yst_gid = attr->ia_gid;
-+
-+	if (valid & ATTR_ATIME)
-+		obj->yst_atime = Y_TIME_CONVERT(attr->ia_atime);
-+	if (valid & ATTR_CTIME)
-+		obj->yst_ctime = Y_TIME_CONVERT(attr->ia_ctime);
-+	if (valid & ATTR_MTIME)
-+		obj->yst_mtime = Y_TIME_CONVERT(attr->ia_mtime);
-+
-+	if (valid & ATTR_SIZE)
-+		yaffs_ResizeFile(obj, attr->ia_size);
-+
-+	yaffs_UpdateObjectHeader(obj, NULL, 1, 0, 0);
-+
-+	return YAFFS_OK;
-+
-+}
-+int yaffs_GetAttributes(yaffs_Object *obj, struct iattr *attr)
-+{
-+	unsigned int valid = 0;
-+
-+	attr->ia_mode = obj->yst_mode;
-+	valid |= ATTR_MODE;
-+	attr->ia_uid = obj->yst_uid;
-+	valid |= ATTR_UID;
-+	attr->ia_gid = obj->yst_gid;
-+	valid |= ATTR_GID;
-+
-+	Y_TIME_CONVERT(attr->ia_atime) = obj->yst_atime;
-+	valid |= ATTR_ATIME;
-+	Y_TIME_CONVERT(attr->ia_ctime) = obj->yst_ctime;
-+	valid |= ATTR_CTIME;
-+	Y_TIME_CONVERT(attr->ia_mtime) = obj->yst_mtime;
-+	valid |= ATTR_MTIME;
-+
-+	attr->ia_size = yaffs_GetFileSize(obj);
-+	valid |= ATTR_SIZE;
-+
-+	attr->ia_valid = valid;
-+
-+	return YAFFS_OK;
-+}
-+
-+#endif
-+
-+#if 0
-+int yaffs_DumpObject(yaffs_Object *obj)
-+{
-+	YCHAR name[257];
-+
-+	yaffs_GetObjectName(obj, name, 256);
-+
-+	T(YAFFS_TRACE_ALWAYS,
-+	  (TSTR
-+	   ("Object %d, inode %d \"%s\"\n dirty %d valid %d serial %d sum %d"
-+	    " chunk %d type %d size %d\n"
-+	    TENDSTR), obj->objectId, yaffs_GetObjectInode(obj), name,
-+	   obj->dirty, obj->valid, obj->serial, obj->sum, obj->hdrChunk,
-+	   yaffs_GetObjectType(obj), yaffs_GetObjectFileLength(obj)));
-+
-+	return YAFFS_OK;
-+}
-+#endif
-+
-+/*---------------------------- Initialisation code -------------------------------------- */
-+
-+static int yaffs_CheckDevFunctions(const yaffs_Device *dev)
-+{
-+
-+	/* Common functions, gotta have */
-+	if (!dev->eraseBlockInNAND || !dev->initialiseNAND)
-+		return 0;
-+
-+#ifdef CONFIG_YAFFS_YAFFS2
-+
-+	/* Can use the "with tags" style interface for yaffs1 or yaffs2 */
-+	if (dev->writeChunkWithTagsToNAND &&
-+	    dev->readChunkWithTagsFromNAND &&
-+	    !dev->writeChunkToNAND &&
-+	    !dev->readChunkFromNAND &&
-+	    dev->markNANDBlockBad && dev->queryNANDBlock)
-+		return 1;
-+#endif
-+
-+	/* Can use the "spare" style interface for yaffs1 */
-+	if (!dev->isYaffs2 &&
-+	    !dev->writeChunkWithTagsToNAND &&
-+	    !dev->readChunkWithTagsFromNAND &&
-+	    dev->writeChunkToNAND &&
-+	    dev->readChunkFromNAND &&
-+	    !dev->markNANDBlockBad && !dev->queryNANDBlock)
-+		return 1;
-+
-+	return 0;		/* bad */
-+}
-+
-+
-+static int yaffs_CreateInitialDirectories(yaffs_Device *dev)
-+{
-+	/* Initialise the unlinked, deleted, root and lost and found directories */
-+
-+	dev->lostNFoundDir = dev->rootDir =  NULL;
-+	dev->unlinkedDir = dev->deletedDir = NULL;
-+
-+	dev->unlinkedDir =
-+	    yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_UNLINKED, S_IFDIR);
-+
-+	dev->deletedDir =
-+	    yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_DELETED, S_IFDIR);
-+
-+	dev->rootDir =
-+	    yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_ROOT,
-+				      YAFFS_ROOT_MODE | S_IFDIR);
-+	dev->lostNFoundDir =
-+	    yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_LOSTNFOUND,
-+				      YAFFS_LOSTNFOUND_MODE | S_IFDIR);
-+
-+	if (dev->lostNFoundDir && dev->rootDir && dev->unlinkedDir && dev->deletedDir) {
-+		yaffs_AddObjectToDirectory(dev->rootDir, dev->lostNFoundDir);
-+		return YAFFS_OK;
-+	}
-+
-+	return YAFFS_FAIL;
-+}
-+
-+int yaffs_GutsInitialise(yaffs_Device *dev)
-+{
-+	int init_failed = 0;
-+	unsigned x;
-+	int bits;
-+
-+	T(YAFFS_TRACE_TRACING, (TSTR("yaffs: yaffs_GutsInitialise()" TENDSTR)));
-+
-+	/* Check stuff that must be set */
-+
-+	if (!dev) {
-+		T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Need a device" TENDSTR)));
-+		return YAFFS_FAIL;
-+	}
-+
-+	dev->internalStartBlock = dev->startBlock;
-+	dev->internalEndBlock = dev->endBlock;
-+	dev->blockOffset = 0;
-+	dev->chunkOffset = 0;
-+	dev->nFreeChunks = 0;
-+
-+	dev->gcBlock = -1;
-+
-+	if (dev->startBlock == 0) {
-+		dev->internalStartBlock = dev->startBlock + 1;
-+		dev->internalEndBlock = dev->endBlock + 1;
-+		dev->blockOffset = 1;
-+		dev->chunkOffset = dev->nChunksPerBlock;
-+	}
-+
-+	/* Check geometry parameters. */
-+
-+	if ((!dev->inbandTags && dev->isYaffs2 && dev->totalBytesPerChunk < 1024) ||
-+	    (!dev->isYaffs2 && dev->totalBytesPerChunk < 512) ||
-+	    (dev->inbandTags && !dev->isYaffs2) ||
-+	     dev->nChunksPerBlock < 2 ||
-+	     dev->nReservedBlocks < 2 ||
-+	     dev->internalStartBlock <= 0 ||
-+	     dev->internalEndBlock <= 0 ||
-+	     dev->internalEndBlock <= (dev->internalStartBlock + dev->nReservedBlocks + 2)) {	/* otherwise it is too small */
-+		T(YAFFS_TRACE_ALWAYS,
-+		  (TSTR
-+		   ("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s, inbandTags %d "
-+		    TENDSTR), dev->totalBytesPerChunk, dev->isYaffs2 ? "2" : "", dev->inbandTags));
-+		return YAFFS_FAIL;
-+	}
-+
-+	if (yaffs_InitialiseNAND(dev) != YAFFS_OK) {
-+		T(YAFFS_TRACE_ALWAYS,
-+		  (TSTR("yaffs: InitialiseNAND failed" TENDSTR)));
-+		return YAFFS_FAIL;
-+	}
-+
-+	/* Sort out space for inband tags, if required */
-+	if (dev->inbandTags)
-+		dev->nDataBytesPerChunk = dev->totalBytesPerChunk - sizeof(yaffs_PackedTags2TagsPart);
-+	else
-+		dev->nDataBytesPerChunk = dev->totalBytesPerChunk;
-+
-+	/* Got the right mix of functions? */
-+	if (!yaffs_CheckDevFunctions(dev)) {
-+		/* Function missing */
-+		T(YAFFS_TRACE_ALWAYS,
-+		  (TSTR
-+		   ("yaffs: device function(s) missing or wrong\n" TENDSTR)));
-+
-+		return YAFFS_FAIL;
-+	}
-+
-+	/* This is really a compilation check. */
-+	if (!yaffs_CheckStructures()) {
-+		T(YAFFS_TRACE_ALWAYS,
-+		  (TSTR("yaffs_CheckStructures failed\n" TENDSTR)));
-+		return YAFFS_FAIL;
-+	}
-+
-+	if (dev->isMounted) {
-+		T(YAFFS_TRACE_ALWAYS,
-+		  (TSTR("yaffs: device already mounted\n" TENDSTR)));
-+		return YAFFS_FAIL;
-+	}
-+
-+	/* Finished with most checks. One or two more checks happen later on too. */
-+
-+	dev->isMounted = 1;
-+
-+	/* OK now calculate a few things for the device */
-+
-+	/*
-+	 *  Calculate all the chunk size manipulation numbers:
-+	 */
-+	x = dev->nDataBytesPerChunk;
-+	/* We always use dev->chunkShift and dev->chunkDiv */
-+	dev->chunkShift = Shifts(x);
-+	x >>= dev->chunkShift;
-+	dev->chunkDiv = x;
-+	/* We only use chunk mask if chunkDiv is 1 */
-+	dev->chunkMask = (1<<dev->chunkShift) - 1;
-+
-+	/*
-+	 * Calculate chunkGroupBits.
-+	 * We need to find the next power of 2 > than internalEndBlock
-+	 */
-+
-+	x = dev->nChunksPerBlock * (dev->internalEndBlock + 1);
-+
-+	bits = ShiftsGE(x);
-+
-+	/* Set up tnode width if wide tnodes are enabled. */
-+	if (!dev->wideTnodesDisabled) {
-+		/* bits must be even so that we end up with 32-bit words */
-+		if (bits & 1)
-+			bits++;
-+		if (bits < 16)
-+			dev->tnodeWidth = 16;
-+		else
-+			dev->tnodeWidth = bits;
-+	} else
-+		dev->tnodeWidth = 16;
-+
-+	dev->tnodeMask = (1<<dev->tnodeWidth)-1;
-+
-+	/* Level0 Tnodes are 16 bits or wider (if wide tnodes are enabled),
-+	 * so if the bitwidth of the
-+	 * chunk range we're using is greater than 16 we need
-+	 * to figure out chunk shift and chunkGroupSize
-+	 */
-+
-+	if (bits <= dev->tnodeWidth)
-+		dev->chunkGroupBits = 0;
-+	else
-+		dev->chunkGroupBits = bits - dev->tnodeWidth;
-+
-+
-+	dev->chunkGroupSize = 1 << dev->chunkGroupBits;
-+
-+	if (dev->nChunksPerBlock < dev->chunkGroupSize) {
-+		/* We have a problem because the soft delete won't work if
-+		 * the chunk group size > chunks per block.
-+		 * This can be remedied by using larger "virtual blocks".
-+		 */
-+		T(YAFFS_TRACE_ALWAYS,
-+		  (TSTR("yaffs: chunk group too large\n" TENDSTR)));
-+
-+		return YAFFS_FAIL;
-+	}
-+
-+	/* OK, we've finished verifying the device, lets continue with initialisation */
-+
-+	/* More device initialisation */
-+	dev->garbageCollections = 0;
-+	dev->passiveGarbageCollections = 0;
-+	dev->currentDirtyChecker = 0;
-+	dev->bufferedBlock = -1;
-+	dev->doingBufferedBlockRewrite = 0;
-+	dev->nDeletedFiles = 0;
-+	dev->nBackgroundDeletions = 0;
-+	dev->nUnlinkedFiles = 0;
-+	dev->eccFixed = 0;
-+	dev->eccUnfixed = 0;
-+	dev->tagsEccFixed = 0;
-+	dev->tagsEccUnfixed = 0;
-+	dev->nErasureFailures = 0;
-+	dev->nErasedBlocks = 0;
-+	dev->isDoingGC = 0;
-+	dev->hasPendingPrioritisedGCs = 1; /* Assume the worst for now, will get fixed on first GC */
-+
-+	/* Initialise temporary buffers and caches. */
-+	if (!yaffs_InitialiseTempBuffers(dev))
-+		init_failed = 1;
-+
-+	dev->srCache = NULL;
-+	dev->gcCleanupList = NULL;
-+
-+
-+	if (!init_failed &&
-+	    dev->nShortOpCaches > 0) {
-+		int i;
-+		void *buf;
-+		int srCacheBytes = dev->nShortOpCaches * sizeof(yaffs_ChunkCache);
-+
-+		if (dev->nShortOpCaches > YAFFS_MAX_SHORT_OP_CACHES)
-+			dev->nShortOpCaches = YAFFS_MAX_SHORT_OP_CACHES;
-+
-+		dev->srCache =  YMALLOC(srCacheBytes);
-+
-+		buf = (__u8 *) dev->srCache;
-+
-+		if (dev->srCache)
-+			memset(dev->srCache, 0, srCacheBytes);
-+
-+		for (i = 0; i < dev->nShortOpCaches && buf; i++) {
-+			dev->srCache[i].object = NULL;
-+			dev->srCache[i].lastUse = 0;
-+			dev->srCache[i].dirty = 0;
-+			dev->srCache[i].data = buf = YMALLOC_DMA(dev->totalBytesPerChunk);
-+		}
-+		if (!buf)
-+			init_failed = 1;
-+
-+		dev->srLastUse = 0;
-+	}
-+
-+	dev->cacheHits = 0;
-+
-+	if (!init_failed) {
-+		dev->gcCleanupList = YMALLOC(dev->nChunksPerBlock * sizeof(__u32));
-+		if (!dev->gcCleanupList)
-+			init_failed = 1;
-+	}
-+
-+	if (dev->isYaffs2)
-+		dev->useHeaderFileSize = 1;
-+
-+	if (!init_failed && !yaffs_InitialiseBlocks(dev))
-+		init_failed = 1;
-+
-+	yaffs_InitialiseTnodes(dev);
-+	yaffs_InitialiseObjects(dev);
-+
-+	if (!init_failed && !yaffs_CreateInitialDirectories(dev))
-+		init_failed = 1;
-+
-+
-+	if (!init_failed) {
-+		/* Now scan the flash. */
-+		if (dev->isYaffs2) {
-+			if (yaffs_CheckpointRestore(dev)) {
-+				yaffs_CheckObjectDetailsLoaded(dev->rootDir);
-+				T(YAFFS_TRACE_ALWAYS,
-+				  (TSTR("yaffs: restored from checkpoint" TENDSTR)));
-+			} else {
-+
-+				/* Clean up the mess caused by an aborted checkpoint load
-+				 * and scan backwards.
-+				 */
-+				yaffs_DeinitialiseBlocks(dev);
-+				yaffs_DeinitialiseTnodes(dev);
-+				yaffs_DeinitialiseObjects(dev);
-+
-+
-+				dev->nErasedBlocks = 0;
-+				dev->nFreeChunks = 0;
-+				dev->allocationBlock = -1;
-+				dev->allocationPage = -1;
-+				dev->nDeletedFiles = 0;
-+				dev->nUnlinkedFiles = 0;
-+				dev->nBackgroundDeletions = 0;
-+				dev->oldestDirtySequence = 0;
-+
-+				if (!init_failed && !yaffs_InitialiseBlocks(dev))
-+					init_failed = 1;
-+
-+				yaffs_InitialiseTnodes(dev);
-+				yaffs_InitialiseObjects(dev);
-+
-+				if (!init_failed && !yaffs_CreateInitialDirectories(dev))
-+					init_failed = 1;
-+
-+				if (!init_failed && !yaffs_ScanBackwards(dev))
-+					init_failed = 1;
-+			}
-+		} else if (!yaffs_Scan(dev))
-+				init_failed = 1;
-+
-+		yaffs_StripDeletedObjects(dev);
-+	}
-+
-+	if (init_failed) {
-+		/* Clean up the mess */
-+		T(YAFFS_TRACE_TRACING,
-+		  (TSTR("yaffs: yaffs_GutsInitialise() aborted.\n" TENDSTR)));
-+
-+		yaffs_Deinitialise(dev);
-+		return YAFFS_FAIL;
-+	}
-+
-+	/* Zero out stats */
-+	dev->nPageReads = 0;
-+	dev->nPageWrites = 0;
-+	dev->nBlockErasures = 0;
-+	dev->nGCCopies = 0;
-+	dev->nRetriedWrites = 0;
-+
-+	dev->nRetiredBlocks = 0;
-+
-+	yaffs_VerifyFreeChunks(dev);
-+	yaffs_VerifyBlocks(dev);
-+
-+
-+	T(YAFFS_TRACE_TRACING,
-+	  (TSTR("yaffs: yaffs_GutsInitialise() done.\n" TENDSTR)));
-+	return YAFFS_OK;
-+
-+}
-+
-+void yaffs_Deinitialise(yaffs_Device *dev)
-+{
-+	if (dev->isMounted) {
-+		int i;
-+
-+		yaffs_DeinitialiseBlocks(dev);
-+		yaffs_DeinitialiseTnodes(dev);
-+		yaffs_DeinitialiseObjects(dev);
-+		if (dev->nShortOpCaches > 0 &&
-+		    dev->srCache) {
-+
-+			for (i = 0; i < dev->nShortOpCaches; i++) {
-+				if (dev->srCache[i].data)
-+					YFREE(dev->srCache[i].data);
-+				dev->srCache[i].data = NULL;
-+			}
-+
-+			YFREE(dev->srCache);
-+			dev->srCache = NULL;
-+		}
-+
-+		YFREE(dev->gcCleanupList);
-+
-+		for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++)
-+			YFREE(dev->tempBuffer[i].buffer);
-+
-+		dev->isMounted = 0;
-+
-+		if (dev->deinitialiseNAND)
-+			dev->deinitialiseNAND(dev);
-+	}
-+}
-+
-+static int yaffs_CountFreeChunks(yaffs_Device *dev)
-+{
-+	int nFree;
-+	int b;
-+
-+	yaffs_BlockInfo *blk;
-+
-+	for (nFree = 0, b = dev->internalStartBlock; b <= dev->internalEndBlock;
-+			b++) {
-+		blk = yaffs_GetBlockInfo(dev, b);
-+
-+		switch (blk->blockState) {
-+		case YAFFS_BLOCK_STATE_EMPTY:
-+		case YAFFS_BLOCK_STATE_ALLOCATING:
-+		case YAFFS_BLOCK_STATE_COLLECTING:
-+		case YAFFS_BLOCK_STATE_FULL:
-+			nFree +=
-+			    (dev->nChunksPerBlock - blk->pagesInUse +
-+			     blk->softDeletions);
-+			break;
-+		default:
-+			break;
-+		}
-+	}
-+
-+	return nFree;
-+}
-+
-+int yaffs_GetNumberOfFreeChunks(yaffs_Device *dev)
-+{
-+	/* This is what we report to the outside world */
-+
-+	int nFree;
-+	int nDirtyCacheChunks;
-+	int blocksForCheckpoint;
-+	int i;
-+
-+#if 1
-+	nFree = dev->nFreeChunks;
-+#else
-+	nFree = yaffs_CountFreeChunks(dev);
-+#endif
-+
-+	nFree += dev->nDeletedFiles;
-+
-+	/* Now count the number of dirty chunks in the cache and subtract those */
-+
-+	for (nDirtyCacheChunks = 0, i = 0; i < dev->nShortOpCaches; i++) {
-+		if (dev->srCache[i].dirty)
-+			nDirtyCacheChunks++;
-+	}
-+
-+	nFree -= nDirtyCacheChunks;
-+
-+	nFree -= ((dev->nReservedBlocks + 1) * dev->nChunksPerBlock);
-+
-+	/* Now we figure out how much to reserve for the checkpoint and report that... */
-+	blocksForCheckpoint = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint;
-+	if (blocksForCheckpoint < 0)
-+		blocksForCheckpoint = 0;
-+
-+	nFree -= (blocksForCheckpoint * dev->nChunksPerBlock);
-+
-+	if (nFree < 0)
-+		nFree = 0;
-+
-+	return nFree;
-+
-+}
-+
-+static int yaffs_freeVerificationFailures;
-+
-+static void yaffs_VerifyFreeChunks(yaffs_Device *dev)
-+{
-+	int counted;
-+	int difference;
-+
-+	if (yaffs_SkipVerification(dev))
-+		return;
-+
-+	counted = yaffs_CountFreeChunks(dev);
-+
-+	difference = dev->nFreeChunks - counted;
-+
-+	if (difference) {
-+		T(YAFFS_TRACE_ALWAYS,
-+		  (TSTR("Freechunks verification failure %d %d %d" TENDSTR),
-+		   dev->nFreeChunks, counted, difference));
-+		yaffs_freeVerificationFailures++;
-+	}
-+}
-+
-+/*---------------------------------------- YAFFS test code ----------------------*/
-+
-+#define yaffs_CheckStruct(structure, syze, name) \
-+	do { \
-+		if (sizeof(structure) != syze) { \
-+			T(YAFFS_TRACE_ALWAYS, (TSTR("%s should be %d but is %d\n" TENDSTR),\
-+				name, syze, sizeof(structure))); \
-+			return YAFFS_FAIL; \
-+		} \
-+	} while (0)
-+
-+static int yaffs_CheckStructures(void)
-+{
-+/*      yaffs_CheckStruct(yaffs_Tags,8,"yaffs_Tags"); */
-+/*      yaffs_CheckStruct(yaffs_TagsUnion,8,"yaffs_TagsUnion"); */
-+/*      yaffs_CheckStruct(yaffs_Spare,16,"yaffs_Spare"); */
-+#ifndef CONFIG_YAFFS_TNODE_LIST_DEBUG
-+	yaffs_CheckStruct(yaffs_Tnode, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_Tnode");
-+#endif
-+#ifndef CONFIG_YAFFS_WINCE
-+	yaffs_CheckStruct(yaffs_ObjectHeader, 512, "yaffs_ObjectHeader");
-+#endif
-+	return YAFFS_OK;
-+}
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_guts.h linux-2.6.30/fs/yaffs2/yaffs_guts.h
---- linux-2.6.30.orig/fs/yaffs2/yaffs_guts.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_guts.h	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,904 @@
-+/*
-+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU Lesser General Public License version 2.1 as
-+ * published by the Free Software Foundation.
-+ *
-+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
-+ */
-+
-+#ifndef __YAFFS_GUTS_H__
-+#define __YAFFS_GUTS_H__
-+
-+#include "devextras.h"
-+#include "yportenv.h"
-+
-+#define YAFFS_OK	1
-+#define YAFFS_FAIL  0
-+
-+/* Give us a  Y=0x59,
-+ * Give us an A=0x41,
-+ * Give us an FF=0xFF
-+ * Give us an S=0x53
-+ * And what have we got...
-+ */
-+#define YAFFS_MAGIC			0x5941FF53
-+
-+#define YAFFS_NTNODES_LEVEL0	  	16
-+#define YAFFS_TNODES_LEVEL0_BITS	4
-+#define YAFFS_TNODES_LEVEL0_MASK	0xf
-+
-+#define YAFFS_NTNODES_INTERNAL 		(YAFFS_NTNODES_LEVEL0 / 2)
-+#define YAFFS_TNODES_INTERNAL_BITS 	(YAFFS_TNODES_LEVEL0_BITS - 1)
-+#define YAFFS_TNODES_INTERNAL_MASK	0x7
-+#define YAFFS_TNODES_MAX_LEVEL		6
-+
-+#ifndef CONFIG_YAFFS_NO_YAFFS1
-+#define YAFFS_BYTES_PER_SPARE		16
-+#define YAFFS_BYTES_PER_CHUNK		512
-+#define YAFFS_CHUNK_SIZE_SHIFT		9
-+#define YAFFS_CHUNKS_PER_BLOCK		32
-+#define YAFFS_BYTES_PER_BLOCK		(YAFFS_CHUNKS_PER_BLOCK*YAFFS_BYTES_PER_CHUNK)
-+#endif
-+
-+#define YAFFS_MIN_YAFFS2_CHUNK_SIZE 	1024
-+#define YAFFS_MIN_YAFFS2_SPARE_SIZE	32
-+
-+#define YAFFS_MAX_CHUNK_ID		0x000FFFFF
-+
-+#define YAFFS_UNUSED_OBJECT_ID		0x0003FFFF
-+
-+#define YAFFS_ALLOCATION_NOBJECTS	100
-+#define YAFFS_ALLOCATION_NTNODES	100
-+#define YAFFS_ALLOCATION_NLINKS		100
-+
-+#define YAFFS_NOBJECT_BUCKETS		256
-+
-+
-+#define YAFFS_OBJECT_SPACE		0x40000
-+
-+#define YAFFS_CHECKPOINT_VERSION 	3
-+
-+#ifdef CONFIG_YAFFS_UNICODE
-+#define YAFFS_MAX_NAME_LENGTH		127
-+#define YAFFS_MAX_ALIAS_LENGTH		79
-+#else
-+#define YAFFS_MAX_NAME_LENGTH		255
-+#define YAFFS_MAX_ALIAS_LENGTH		159
-+#endif
-+
-+#define YAFFS_SHORT_NAME_LENGTH		15
-+
-+/* Some special object ids for pseudo objects */
-+#define YAFFS_OBJECTID_ROOT		1
-+#define YAFFS_OBJECTID_LOSTNFOUND	2
-+#define YAFFS_OBJECTID_UNLINKED		3
-+#define YAFFS_OBJECTID_DELETED		4
-+
-+/* Sseudo object ids for checkpointing */
-+#define YAFFS_OBJECTID_SB_HEADER	0x10
-+#define YAFFS_OBJECTID_CHECKPOINT_DATA	0x20
-+#define YAFFS_SEQUENCE_CHECKPOINT_DATA  0x21
-+
-+/* */
-+
-+#define YAFFS_MAX_SHORT_OP_CACHES	20
-+
-+#define YAFFS_N_TEMP_BUFFERS		6
-+
-+/* We limit the number attempts at sucessfully saving a chunk of data.
-+ * Small-page devices have 32 pages per block; large-page devices have 64.
-+ * Default to something in the order of 5 to 10 blocks worth of chunks.
-+ */
-+#define YAFFS_WR_ATTEMPTS		(5*64)
-+
-+/* Sequence numbers are used in YAFFS2 to determine block allocation order.
-+ * The range is limited slightly to help distinguish bad numbers from good.
-+ * This also allows us to perhaps in the future use special numbers for
-+ * special purposes.
-+ * EFFFFF00 allows the allocation of 8 blocks per second (~1Mbytes) for 15 years,
-+ * and is a larger number than the lifetime of a 2GB device.
-+ */
-+#define YAFFS_LOWEST_SEQUENCE_NUMBER	0x00001000
-+#define YAFFS_HIGHEST_SEQUENCE_NUMBER	0xEFFFFF00
-+
-+/* Special sequence number for bad block that failed to be marked bad */
-+#define YAFFS_SEQUENCE_BAD_BLOCK	0xFFFF0000
-+
-+/* ChunkCache is used for short read/write operations.*/
-+typedef struct {
-+	struct yaffs_ObjectStruct *object;
-+	int chunkId;
-+	int lastUse;
-+	int dirty;
-+	int nBytes;		/* Only valid if the cache is dirty */
-+	int locked;		/* Can't push out or flush while locked. */
-+#ifdef CONFIG_YAFFS_YAFFS2
-+	__u8 *data;
-+#else
-+	__u8 data[YAFFS_BYTES_PER_CHUNK];
-+#endif
-+} yaffs_ChunkCache;
-+
-+
-+
-+/* Tags structures in RAM
-+ * NB This uses bitfield. Bitfields should not straddle a u32 boundary otherwise
-+ * the structure size will get blown out.
-+ */
-+
-+#ifndef CONFIG_YAFFS_NO_YAFFS1
-+typedef struct {
-+	unsigned chunkId:20;
-+	unsigned serialNumber:2;
-+	unsigned byteCountLSB:10;
-+	unsigned objectId:18;
-+	unsigned ecc:12;
-+	unsigned byteCountMSB:2;
-+} yaffs_Tags;
-+
-+typedef union {
-+	yaffs_Tags asTags;
-+	__u8 asBytes[8];
-+} yaffs_TagsUnion;
-+
-+#endif
-+
-+/* Stuff used for extended tags in YAFFS2 */
-+
-+typedef enum {
-+	YAFFS_ECC_RESULT_UNKNOWN,
-+	YAFFS_ECC_RESULT_NO_ERROR,
-+	YAFFS_ECC_RESULT_FIXED,
-+	YAFFS_ECC_RESULT_UNFIXED
-+} yaffs_ECCResult;
-+
-+typedef enum {
-+	YAFFS_OBJECT_TYPE_UNKNOWN,
-+	YAFFS_OBJECT_TYPE_FILE,
-+	YAFFS_OBJECT_TYPE_SYMLINK,
-+	YAFFS_OBJECT_TYPE_DIRECTORY,
-+	YAFFS_OBJECT_TYPE_HARDLINK,
-+	YAFFS_OBJECT_TYPE_SPECIAL
-+} yaffs_ObjectType;
-+
-+#define YAFFS_OBJECT_TYPE_MAX YAFFS_OBJECT_TYPE_SPECIAL
-+
-+typedef struct {
-+
-+	unsigned validMarker0;
-+	unsigned chunkUsed;	/*  Status of the chunk: used or unused */
-+	unsigned objectId;	/* If 0 then this is not part of an object (unused) */
-+	unsigned chunkId;	/* If 0 then this is a header, else a data chunk */
-+	unsigned byteCount;	/* Only valid for data chunks */
-+
-+	/* The following stuff only has meaning when we read */
-+	yaffs_ECCResult eccResult;
-+	unsigned blockBad;
-+
-+	/* YAFFS 1 stuff */
-+	unsigned chunkDeleted;	/* The chunk is marked deleted */
-+	unsigned serialNumber;	/* Yaffs1 2-bit serial number */
-+
-+	/* YAFFS2 stuff */
-+	unsigned sequenceNumber;	/* The sequence number of this block */
-+
-+	/* Extra info if this is an object header (YAFFS2 only) */
-+
-+	unsigned extraHeaderInfoAvailable;	/* There is extra info available if this is not zero */
-+	unsigned extraParentObjectId;	/* The parent object */
-+	unsigned extraIsShrinkHeader;	/* Is it a shrink header? */
-+	unsigned extraShadows;		/* Does this shadow another object? */
-+
-+	yaffs_ObjectType extraObjectType;	/* What object type? */
-+
-+	unsigned extraFileLength;		/* Length if it is a file */
-+	unsigned extraEquivalentObjectId;	/* Equivalent object Id if it is a hard link */
-+
-+	unsigned validMarker1;
-+
-+} yaffs_ExtendedTags;
-+
-+/* Spare structure for YAFFS1 */
-+typedef struct {
-+	__u8 tagByte0;
-+	__u8 tagByte1;
-+	__u8 tagByte2;
-+	__u8 tagByte3;
-+	__u8 pageStatus;	/* set to 0 to delete the chunk */
-+	__u8 blockStatus;
-+	__u8 tagByte4;
-+	__u8 tagByte5;
-+	__u8 ecc1[3];
-+	__u8 tagByte6;
-+	__u8 tagByte7;
-+	__u8 ecc2[3];
-+} yaffs_Spare;
-+
-+/*Special structure for passing through to mtd */
-+struct yaffs_NANDSpare {
-+	yaffs_Spare spare;
-+	int eccres1;
-+	int eccres2;
-+};
-+
-+/* Block data in RAM */
-+
-+typedef enum {
-+	YAFFS_BLOCK_STATE_UNKNOWN = 0,
-+
-+	YAFFS_BLOCK_STATE_SCANNING,
-+	YAFFS_BLOCK_STATE_NEEDS_SCANNING,
-+	/* The block might have something on it (ie it is allocating or full, perhaps empty)
-+	 * but it needs to be scanned to determine its true state.
-+	 * This state is only valid during yaffs_Scan.
-+	 * NB We tolerate empty because the pre-scanner might be incapable of deciding
-+	 * However, if this state is returned on a YAFFS2 device, then we expect a sequence number
-+	 */
-+
-+	YAFFS_BLOCK_STATE_EMPTY,
-+	/* This block is empty */
-+
-+	YAFFS_BLOCK_STATE_ALLOCATING,
-+	/* This block is partially allocated.
-+	 * At least one page holds valid data.
-+	 * This is the one currently being used for page
-+	 * allocation. Should never be more than one of these
-+	 */
-+
-+	YAFFS_BLOCK_STATE_FULL,
-+	/* All the pages in this block have been allocated.
-+	 */
-+
-+	YAFFS_BLOCK_STATE_DIRTY,
-+	/* All pages have been allocated and deleted.
-+	 * Erase me, reuse me.
-+	 */
-+
-+	YAFFS_BLOCK_STATE_CHECKPOINT,
-+	/* This block is assigned to holding checkpoint data.
-+	 */
-+
-+	YAFFS_BLOCK_STATE_COLLECTING,
-+	/* This block is being garbage collected */
-+
-+	YAFFS_BLOCK_STATE_DEAD
-+	/* This block has failed and is not in use */
-+} yaffs_BlockState;
-+
-+#define	YAFFS_NUMBER_OF_BLOCK_STATES (YAFFS_BLOCK_STATE_DEAD + 1)
-+
-+
-+typedef struct {
-+
-+	int softDeletions:10;	/* number of soft deleted pages */
-+	int pagesInUse:10;	/* number of pages in use */
-+	unsigned blockState:4;	/* One of the above block states. NB use unsigned because enum is sometimes an int */
-+	__u32 needsRetiring:1;	/* Data has failed on this block, need to get valid data off */
-+				/* and retire the block. */
-+	__u32 skipErasedCheck:1; /* If this is set we can skip the erased check on this block */
-+	__u32 gcPrioritise:1; 	/* An ECC check or blank check has failed on this block.
-+				   It should be prioritised for GC */
-+	__u32 chunkErrorStrikes:3; /* How many times we've had ecc etc failures on this block and tried to reuse it */
-+
-+#ifdef CONFIG_YAFFS_YAFFS2
-+	__u32 hasShrinkHeader:1; /* This block has at least one shrink object header */
-+	__u32 sequenceNumber;	 /* block sequence number for yaffs2 */
-+#endif
-+
-+} yaffs_BlockInfo;
-+
-+/* -------------------------- Object structure -------------------------------*/
-+/* This is the object structure as stored on NAND */
-+
-+typedef struct {
-+	yaffs_ObjectType type;
-+
-+	/* Apply to everything  */
-+	int parentObjectId;
-+	__u16 sum__NoLongerUsed;        /* checksum of name. No longer used */
-+	YCHAR name[YAFFS_MAX_NAME_LENGTH + 1];
-+
-+	/* The following apply to directories, files, symlinks - not hard links */
-+	__u32 yst_mode;         /* protection */
-+
-+#ifdef CONFIG_YAFFS_WINCE
-+	__u32 notForWinCE[5];
-+#else
-+	__u32 yst_uid;
-+	__u32 yst_gid;
-+	__u32 yst_atime;
-+	__u32 yst_mtime;
-+	__u32 yst_ctime;
-+#endif
-+
-+	/* File size  applies to files only */
-+	int fileSize;
-+
-+	/* Equivalent object id applies to hard links only. */
-+	int equivalentObjectId;
-+
-+	/* Alias is for symlinks only. */
-+	YCHAR alias[YAFFS_MAX_ALIAS_LENGTH + 1];
-+
-+	__u32 yst_rdev;		/* device stuff for block and char devices (major/min) */
-+
-+#ifdef CONFIG_YAFFS_WINCE
-+	__u32 win_ctime[2];
-+	__u32 win_atime[2];
-+	__u32 win_mtime[2];
-+#else
-+	__u32 roomToGrow[6];
-+
-+#endif
-+	__u32 inbandShadowsObject;
-+	__u32 inbandIsShrink;
-+
-+	__u32 reservedSpace[2];
-+	int shadowsObject;	/* This object header shadows the specified object if > 0 */
-+
-+	/* isShrink applies to object headers written when we shrink the file (ie resize) */
-+	__u32 isShrink;
-+
-+} yaffs_ObjectHeader;
-+
-+/*--------------------------- Tnode -------------------------- */
-+
-+union yaffs_Tnode_union {
-+#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG
-+	union yaffs_Tnode_union *internal[YAFFS_NTNODES_INTERNAL + 1];
-+#else
-+	union yaffs_Tnode_union *internal[YAFFS_NTNODES_INTERNAL];
-+#endif
-+/*	__u16 level0[YAFFS_NTNODES_LEVEL0]; */
-+
-+};
-+
-+typedef union yaffs_Tnode_union yaffs_Tnode;
-+
-+struct yaffs_TnodeList_struct {
-+	struct yaffs_TnodeList_struct *next;
-+	yaffs_Tnode *tnodes;
-+};
-+
-+typedef struct yaffs_TnodeList_struct yaffs_TnodeList;
-+
-+/*------------------------  Object -----------------------------*/
-+/* An object can be one of:
-+ * - a directory (no data, has children links
-+ * - a regular file (data.... not prunes :->).
-+ * - a symlink [symbolic link] (the alias).
-+ * - a hard link
-+ */
-+
-+typedef struct {
-+	__u32 fileSize;
-+	__u32 scannedFileSize;
-+	__u32 shrinkSize;
-+	int topLevel;
-+	yaffs_Tnode *top;
-+} yaffs_FileStructure;
-+
-+typedef struct {
-+	struct ylist_head children;     /* list of child links */
-+} yaffs_DirectoryStructure;
-+
-+typedef struct {
-+	YCHAR *alias;
-+} yaffs_SymLinkStructure;
-+
-+typedef struct {
-+	struct yaffs_ObjectStruct *equivalentObject;
-+	__u32 equivalentObjectId;
-+} yaffs_HardLinkStructure;
-+
-+typedef union {
-+	yaffs_FileStructure fileVariant;
-+	yaffs_DirectoryStructure directoryVariant;
-+	yaffs_SymLinkStructure symLinkVariant;
-+	yaffs_HardLinkStructure hardLinkVariant;
-+} yaffs_ObjectVariant;
-+
-+struct yaffs_ObjectStruct {
-+	__u8 deleted:1;		/* This should only apply to unlinked files. */
-+	__u8 softDeleted:1;	/* it has also been soft deleted */
-+	__u8 unlinked:1;	/* An unlinked file. The file should be in the unlinked directory.*/
-+	__u8 fake:1;		/* A fake object has no presence on NAND. */
-+	__u8 renameAllowed:1;	/* Some objects are not allowed to be renamed. */
-+	__u8 unlinkAllowed:1;
-+	__u8 dirty:1;		/* the object needs to be written to flash */
-+	__u8 valid:1;		/* When the file system is being loaded up, this
-+				 * object might be created before the data
-+				 * is available (ie. file data records appear before the header).
-+				 */
-+	__u8 lazyLoaded:1;	/* This object has been lazy loaded and is missing some detail */
-+
-+	__u8 deferedFree:1;	/* For Linux kernel. Object is removed from NAND, but is
-+				 * still in the inode cache. Free of object is defered.
-+				 * until the inode is released.
-+				 */
-+	__u8 beingCreated:1;	/* This object is still being created so skip some checks. */
-+
-+	__u8 serial;		/* serial number of chunk in NAND. Cached here */
-+	__u16 sum;		/* sum of the name to speed searching */
-+
-+	struct yaffs_DeviceStruct *myDev;       /* The device I'm on */
-+
-+	struct ylist_head hashLink;     /* list of objects in this hash bucket */
-+
-+	struct ylist_head hardLinks;    /* all the equivalent hard linked objects */
-+
-+	/* directory structure stuff */
-+	/* also used for linking up the free list */
-+	struct yaffs_ObjectStruct *parent;
-+	struct ylist_head siblings;
-+
-+	/* Where's my object header in NAND? */
-+	int hdrChunk;
-+
-+	int nDataChunks;	/* Number of data chunks attached to the file. */
-+
-+	__u32 objectId;		/* the object id value */
-+
-+	__u32 yst_mode;
-+
-+#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM
-+	YCHAR shortName[YAFFS_SHORT_NAME_LENGTH + 1];
-+#endif
-+
-+#ifndef __KERNEL__
-+	__u32 inUse;
-+#endif
-+
-+#ifdef CONFIG_YAFFS_WINCE
-+	__u32 win_ctime[2];
-+	__u32 win_mtime[2];
-+	__u32 win_atime[2];
-+#else
-+	__u32 yst_uid;
-+	__u32 yst_gid;
-+	__u32 yst_atime;
-+	__u32 yst_mtime;
-+	__u32 yst_ctime;
-+#endif
-+
-+	__u32 yst_rdev;
-+
-+#ifdef __KERNEL__
-+	struct inode *myInode;
-+
-+#endif
-+
-+	yaffs_ObjectType variantType;
-+
-+	yaffs_ObjectVariant variant;
-+
-+};
-+
-+typedef struct yaffs_ObjectStruct yaffs_Object;
-+
-+struct yaffs_ObjectList_struct {
-+	yaffs_Object *objects;
-+	struct yaffs_ObjectList_struct *next;
-+};
-+
-+typedef struct yaffs_ObjectList_struct yaffs_ObjectList;
-+
-+typedef struct {
-+	struct ylist_head list;
-+	int count;
-+} yaffs_ObjectBucket;
-+
-+
-+/* yaffs_CheckpointObject holds the definition of an object as dumped
-+ * by checkpointing.
-+ */
-+
-+typedef struct {
-+	int structType;
-+	__u32 objectId;
-+	__u32 parentId;
-+	int hdrChunk;
-+	yaffs_ObjectType variantType:3;
-+	__u8 deleted:1;
-+	__u8 softDeleted:1;
-+	__u8 unlinked:1;
-+	__u8 fake:1;
-+	__u8 renameAllowed:1;
-+	__u8 unlinkAllowed:1;
-+	__u8 serial;
-+
-+	int nDataChunks;
-+	__u32 fileSizeOrEquivalentObjectId;
-+} yaffs_CheckpointObject;
-+
-+/*--------------------- Temporary buffers ----------------
-+ *
-+ * These are chunk-sized working buffers. Each device has a few
-+ */
-+
-+typedef struct {
-+	__u8 *buffer;
-+	int line;	/* track from whence this buffer was allocated */
-+	int maxLine;
-+} yaffs_TempBuffer;
-+
-+/*----------------- Device ---------------------------------*/
-+
-+struct yaffs_DeviceStruct {
-+	struct ylist_head devList;
-+	const char *name;
-+
-+	/* Entry parameters set up way early. Yaffs sets up the rest.*/
-+	int nDataBytesPerChunk;	/* Should be a power of 2 >= 512 */
-+	int nChunksPerBlock;	/* does not need to be a power of 2 */
-+	int spareBytesPerChunk;	/* spare area size */
-+	int startBlock;		/* Start block we're allowed to use */
-+	int endBlock;		/* End block we're allowed to use */
-+	int nReservedBlocks;	/* We want this tuneable so that we can reduce */
-+				/* reserved blocks on NOR and RAM. */
-+
-+
-+	/* Stuff used by the shared space checkpointing mechanism */
-+	/* If this value is zero, then this mechanism is disabled */
-+
-+/*	int nCheckpointReservedBlocks; */ /* Blocks to reserve for checkpoint data */
-+
-+
-+	int nShortOpCaches;	/* If <= 0, then short op caching is disabled, else
-+				 * the number of short op caches (don't use too many)
-+				 */
-+
-+	int useHeaderFileSize;	/* Flag to determine if we should use file sizes from the header */
-+
-+	int useNANDECC;		/* Flag to decide whether or not to use NANDECC */
-+
-+	void *genericDevice;	/* Pointer to device context
-+				 * On an mtd this holds the mtd pointer.
-+				 */
-+	void *superBlock;
-+
-+	/* NAND access functions (Must be set before calling YAFFS)*/
-+
-+	int (*writeChunkToNAND) (struct yaffs_DeviceStruct *dev,
-+					int chunkInNAND, const __u8 *data,
-+					const yaffs_Spare *spare);
-+	int (*readChunkFromNAND) (struct yaffs_DeviceStruct *dev,
-+					int chunkInNAND, __u8 *data,
-+					yaffs_Spare *spare);
-+	int (*eraseBlockInNAND) (struct yaffs_DeviceStruct *dev,
-+					int blockInNAND);
-+	int (*initialiseNAND) (struct yaffs_DeviceStruct *dev);
-+	int (*deinitialiseNAND) (struct yaffs_DeviceStruct *dev);
-+
-+#ifdef CONFIG_YAFFS_YAFFS2
-+	int (*writeChunkWithTagsToNAND) (struct yaffs_DeviceStruct *dev,
-+					 int chunkInNAND, const __u8 *data,
-+					 const yaffs_ExtendedTags *tags);
-+	int (*readChunkWithTagsFromNAND) (struct yaffs_DeviceStruct *dev,
-+					  int chunkInNAND, __u8 *data,
-+					  yaffs_ExtendedTags *tags);
-+	int (*markNANDBlockBad) (struct yaffs_DeviceStruct *dev, int blockNo);
-+	int (*queryNANDBlock) (struct yaffs_DeviceStruct *dev, int blockNo,
-+			       yaffs_BlockState *state, __u32 *sequenceNumber);
-+#endif
-+
-+	int isYaffs2;
-+
-+	/* The removeObjectCallback function must be supplied by OS flavours that
-+	 * need it. The Linux kernel does not use this, but yaffs direct does use
-+	 * it to implement the faster readdir
-+	 */
-+	void (*removeObjectCallback)(struct yaffs_ObjectStruct *obj);
-+
-+	/* Callback to mark the superblock dirsty */
-+	void (*markSuperBlockDirty)(void *superblock);
-+
-+	int wideTnodesDisabled; /* Set to disable wide tnodes */
-+
-+	YCHAR *pathDividers;	/* String of legal path dividers */
-+
-+
-+	/* End of stuff that must be set before initialisation. */
-+
-+	/* Checkpoint control. Can be set before or after initialisation */
-+	__u8 skipCheckpointRead;
-+	__u8 skipCheckpointWrite;
-+
-+	/* Runtime parameters. Set up by YAFFS. */
-+
-+	__u16 chunkGroupBits;	/* 0 for devices <= 32MB. else log2(nchunks) - 16 */
-+	__u16 chunkGroupSize;	/* == 2^^chunkGroupBits */
-+
-+	/* Stuff to support wide tnodes */
-+	__u32 tnodeWidth;
-+	__u32 tnodeMask;
-+
-+	/* Stuff for figuring out file offset to chunk conversions */
-+	__u32 chunkShift; /* Shift value */
-+	__u32 chunkDiv;   /* Divisor after shifting: 1 for power-of-2 sizes */
-+	__u32 chunkMask;  /* Mask to use for power-of-2 case */
-+
-+	/* Stuff to handle inband tags */
-+	int inbandTags;
-+	__u32 totalBytesPerChunk;
-+
-+#ifdef __KERNEL__
-+
-+	struct semaphore sem;	/* Semaphore for waiting on erasure.*/
-+	struct semaphore grossLock;	/* Gross locking semaphore */
-+	__u8 *spareBuffer;	/* For mtdif2 use. Don't know the size of the buffer
-+				 * at compile time so we have to allocate it.
-+				 */
-+	void (*putSuperFunc) (struct super_block *sb);
-+#endif
-+
-+	int isMounted;
-+
-+	int isCheckpointed;
-+
-+
-+	/* Stuff to support block offsetting to support start block zero */
-+	int internalStartBlock;
-+	int internalEndBlock;
-+	int blockOffset;
-+	int chunkOffset;
-+
-+
-+	/* Runtime checkpointing stuff */
-+	int checkpointPageSequence;   /* running sequence number of checkpoint pages */
-+	int checkpointByteCount;
-+	int checkpointByteOffset;
-+	__u8 *checkpointBuffer;
-+	int checkpointOpenForWrite;
-+	int blocksInCheckpoint;
-+	int checkpointCurrentChunk;
-+	int checkpointCurrentBlock;
-+	int checkpointNextBlock;
-+	int *checkpointBlockList;
-+	int checkpointMaxBlocks;
-+	__u32 checkpointSum;
-+	__u32 checkpointXor;
-+
-+	int nCheckpointBlocksRequired; /* Number of blocks needed to store current checkpoint set */
-+
-+	/* Block Info */
-+	yaffs_BlockInfo *blockInfo;
-+	__u8 *chunkBits;	/* bitmap of chunks in use */
-+	unsigned blockInfoAlt:1;	/* was allocated using alternative strategy */
-+	unsigned chunkBitsAlt:1;	/* was allocated using alternative strategy */
-+	int chunkBitmapStride;	/* Number of bytes of chunkBits per block.
-+				 * Must be consistent with nChunksPerBlock.
-+				 */
-+
-+	int nErasedBlocks;
-+	int allocationBlock;	/* Current block being allocated off */
-+	__u32 allocationPage;
-+	int allocationBlockFinder;	/* Used to search for next allocation block */
-+
-+	/* Runtime state */
-+	int nTnodesCreated;
-+	yaffs_Tnode *freeTnodes;
-+	int nFreeTnodes;
-+	yaffs_TnodeList *allocatedTnodeList;
-+
-+	int isDoingGC;
-+	int gcBlock;
-+	int gcChunk;
-+
-+	int nObjectsCreated;
-+	yaffs_Object *freeObjects;
-+	int nFreeObjects;
-+
-+	int nHardLinks;
-+
-+	yaffs_ObjectList *allocatedObjectList;
-+
-+	yaffs_ObjectBucket objectBucket[YAFFS_NOBJECT_BUCKETS];
-+
-+	int nFreeChunks;
-+
-+	int currentDirtyChecker;	/* Used to find current dirtiest block */
-+
-+	__u32 *gcCleanupList;	/* objects to delete at the end of a GC. */
-+	int nonAggressiveSkip;	/* GC state/mode */
-+
-+	/* Statistcs */
-+	int nPageWrites;
-+	int nPageReads;
-+	int nBlockErasures;
-+	int nErasureFailures;
-+	int nGCCopies;
-+	int garbageCollections;
-+	int passiveGarbageCollections;
-+	int nRetriedWrites;
-+	int nRetiredBlocks;
-+	int eccFixed;
-+	int eccUnfixed;
-+	int tagsEccFixed;
-+	int tagsEccUnfixed;
-+	int nDeletions;
-+	int nUnmarkedDeletions;
-+
-+	int hasPendingPrioritisedGCs; /* We think this device might have pending prioritised gcs */
-+
-+	/* Special directories */
-+	yaffs_Object *rootDir;
-+	yaffs_Object *lostNFoundDir;
-+
-+	/* Buffer areas for storing data to recover from write failures TODO
-+	 *      __u8            bufferedData[YAFFS_CHUNKS_PER_BLOCK][YAFFS_BYTES_PER_CHUNK];
-+	 *      yaffs_Spare bufferedSpare[YAFFS_CHUNKS_PER_BLOCK];
-+	 */
-+
-+	int bufferedBlock;	/* Which block is buffered here? */
-+	int doingBufferedBlockRewrite;
-+
-+	yaffs_ChunkCache *srCache;
-+	int srLastUse;
-+
-+	int cacheHits;
-+
-+	/* Stuff for background deletion and unlinked files.*/
-+	yaffs_Object *unlinkedDir;	/* Directory where unlinked and deleted files live. */
-+	yaffs_Object *deletedDir;	/* Directory where deleted objects are sent to disappear. */
-+	yaffs_Object *unlinkedDeletion;	/* Current file being background deleted.*/
-+	int nDeletedFiles;		/* Count of files awaiting deletion;*/
-+	int nUnlinkedFiles;		/* Count of unlinked files. */
-+	int nBackgroundDeletions;	/* Count of background deletions. */
-+
-+
-+	/* Temporary buffer management */
-+	yaffs_TempBuffer tempBuffer[YAFFS_N_TEMP_BUFFERS];
-+	int maxTemp;
-+	int tempInUse;
-+	int unmanagedTempAllocations;
-+	int unmanagedTempDeallocations;
-+
-+	/* yaffs2 runtime stuff */
-+	unsigned sequenceNumber;	/* Sequence number of currently allocating block */
-+	unsigned oldestDirtySequence;
-+
-+};
-+
-+typedef struct yaffs_DeviceStruct yaffs_Device;
-+
-+/* The static layout of block usage etc is stored in the super block header */
-+typedef struct {
-+	int StructType;
-+	int version;
-+	int checkpointStartBlock;
-+	int checkpointEndBlock;
-+	int startBlock;
-+	int endBlock;
-+	int rfu[100];
-+} yaffs_SuperBlockHeader;
-+
-+/* The CheckpointDevice structure holds the device information that changes at runtime and
-+ * must be preserved over unmount/mount cycles.
-+ */
-+typedef struct {
-+	int structType;
-+	int nErasedBlocks;
-+	int allocationBlock;	/* Current block being allocated off */
-+	__u32 allocationPage;
-+	int nFreeChunks;
-+
-+	int nDeletedFiles;		/* Count of files awaiting deletion;*/
-+	int nUnlinkedFiles;		/* Count of unlinked files. */
-+	int nBackgroundDeletions;	/* Count of background deletions. */
-+
-+	/* yaffs2 runtime stuff */
-+	unsigned sequenceNumber;	/* Sequence number of currently allocating block */
-+	unsigned oldestDirtySequence;
-+
-+} yaffs_CheckpointDevice;
-+
-+
-+typedef struct {
-+	int structType;
-+	__u32 magic;
-+	__u32 version;
-+	__u32 head;
-+} yaffs_CheckpointValidity;
-+
-+
-+/*----------------------- YAFFS Functions -----------------------*/
-+
-+int yaffs_GutsInitialise(yaffs_Device *dev);
-+void yaffs_Deinitialise(yaffs_Device *dev);
-+
-+int yaffs_GetNumberOfFreeChunks(yaffs_Device *dev);
-+
-+int yaffs_RenameObject(yaffs_Object *oldDir, const YCHAR *oldName,
-+		       yaffs_Object *newDir, const YCHAR *newName);
-+
-+int yaffs_Unlink(yaffs_Object *dir, const YCHAR *name);
-+int yaffs_DeleteObject(yaffs_Object *obj);
-+
-+int yaffs_GetObjectName(yaffs_Object *obj, YCHAR *name, int buffSize);
-+int yaffs_GetObjectFileLength(yaffs_Object *obj);
-+int yaffs_GetObjectInode(yaffs_Object *obj);
-+unsigned yaffs_GetObjectType(yaffs_Object *obj);
-+int yaffs_GetObjectLinkCount(yaffs_Object *obj);
-+
-+int yaffs_SetAttributes(yaffs_Object *obj, struct iattr *attr);
-+int yaffs_GetAttributes(yaffs_Object *obj, struct iattr *attr);
-+
-+/* File operations */
-+int yaffs_ReadDataFromFile(yaffs_Object *obj, __u8 *buffer, loff_t offset,
-+				int nBytes);
-+int yaffs_WriteDataToFile(yaffs_Object *obj, const __u8 *buffer, loff_t offset,
-+				int nBytes, int writeThrough);
-+int yaffs_ResizeFile(yaffs_Object *obj, loff_t newSize);
-+
-+yaffs_Object *yaffs_MknodFile(yaffs_Object *parent, const YCHAR *name,
-+				__u32 mode, __u32 uid, __u32 gid);
-+int yaffs_FlushFile(yaffs_Object *obj, int updateTime);
-+
-+/* Flushing and checkpointing */
-+void yaffs_FlushEntireDeviceCache(yaffs_Device *dev);
-+
-+int yaffs_CheckpointSave(yaffs_Device *dev);
-+int yaffs_CheckpointRestore(yaffs_Device *dev);
-+
-+/* Directory operations */
-+yaffs_Object *yaffs_MknodDirectory(yaffs_Object *parent, const YCHAR *name,
-+				__u32 mode, __u32 uid, __u32 gid);
-+yaffs_Object *yaffs_FindObjectByName(yaffs_Object *theDir, const YCHAR *name);
-+int yaffs_ApplyToDirectoryChildren(yaffs_Object *theDir,
-+				   int (*fn) (yaffs_Object *));
-+
-+yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device *dev, __u32 number);
-+
-+/* Link operations */
-+yaffs_Object *yaffs_Link(yaffs_Object *parent, const YCHAR *name,
-+			 yaffs_Object *equivalentObject);
-+
-+yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object *obj);
-+
-+/* Symlink operations */
-+yaffs_Object *yaffs_MknodSymLink(yaffs_Object *parent, const YCHAR *name,
-+				 __u32 mode, __u32 uid, __u32 gid,
-+				 const YCHAR *alias);
-+YCHAR *yaffs_GetSymlinkAlias(yaffs_Object *obj);
-+
-+/* Special inodes (fifos, sockets and devices) */
-+yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name,
-+				 __u32 mode, __u32 uid, __u32 gid, __u32 rdev);
-+
-+/* Special directories */
-+yaffs_Object *yaffs_Root(yaffs_Device *dev);
-+yaffs_Object *yaffs_LostNFound(yaffs_Device *dev);
-+
-+#ifdef CONFIG_YAFFS_WINCE
-+/* CONFIG_YAFFS_WINCE special stuff */
-+void yfsd_WinFileTimeNow(__u32 target[2]);
-+#endif
-+
-+#ifdef __KERNEL__
-+
-+void yaffs_HandleDeferedFree(yaffs_Object *obj);
-+#endif
-+
-+/* Debug dump  */
-+int yaffs_DumpObject(yaffs_Object *obj);
-+
-+void yaffs_GutsTest(yaffs_Device *dev);
-+
-+/* A few useful functions */
-+void yaffs_InitialiseTags(yaffs_ExtendedTags *tags);
-+void yaffs_DeleteChunk(yaffs_Device *dev, int chunkId, int markNAND, int lyn);
-+int yaffs_CheckFF(__u8 *buffer, int nBytes);
-+void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi);
-+
-+__u8 *yaffs_GetTempBuffer(yaffs_Device *dev, int lineNo);
-+void yaffs_ReleaseTempBuffer(yaffs_Device *dev, __u8 *buffer, int lineNo);
-+
-+#endif
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffsinterface.h linux-2.6.30/fs/yaffs2/yaffsinterface.h
---- linux-2.6.30.orig/fs/yaffs2/yaffsinterface.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffsinterface.h	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,21 @@
-+/*
-+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU Lesser General Public License version 2.1 as
-+ * published by the Free Software Foundation.
-+ *
-+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
-+ */
-+
-+#ifndef __YAFFSINTERFACE_H__
-+#define __YAFFSINTERFACE_H__
-+
-+int yaffs_Initialise(unsigned nBlocks);
-+
-+#endif
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_mtdif1.c linux-2.6.30/fs/yaffs2/yaffs_mtdif1.c
---- linux-2.6.30.orig/fs/yaffs2/yaffs_mtdif1.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_mtdif1.c	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,365 @@
-+/*
-+ * YAFFS: Yet another FFS. A NAND-flash specific file system.
-+ * yaffs_mtdif1.c  NAND mtd interface functions for small-page NAND.
-+ *
-+ * Copyright (C) 2002 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+/*
-+ * This module provides the interface between yaffs_nand.c and the
-+ * MTD API.  This version is used when the MTD interface supports the
-+ * 'mtd_oob_ops' style calls to read_oob and write_oob, circa 2.6.17,
-+ * and we have small-page NAND device.
-+ *
-+ * These functions are invoked via function pointers in yaffs_nand.c.
-+ * This replaces functionality provided by functions in yaffs_mtdif.c
-+ * and the yaffs_TagsCompatability functions in yaffs_tagscompat.c that are
-+ * called in yaffs_mtdif.c when the function pointers are NULL.
-+ * We assume the MTD layer is performing ECC (useNANDECC is true).
-+ */
-+
-+#include "yportenv.h"
-+#include "yaffs_guts.h"
-+#include "yaffs_packedtags1.h"
-+#include "yaffs_tagscompat.h"	/* for yaffs_CalcTagsECC */
-+
-+#include "linux/kernel.h"
-+#include "linux/version.h"
-+#include "linux/types.h"
-+#include "linux/mtd/mtd.h"
-+
-+/* Don't compile this module if we don't have MTD's mtd_oob_ops interface */
-+#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
-+
-+const char *yaffs_mtdif1_c_version = "$Id: yaffs_mtdif1.c,v 1.10 2009-03-09 07:41:10 charles Exp $";
-+
-+#ifndef CONFIG_YAFFS_9BYTE_TAGS
-+# define YTAG1_SIZE 8
-+#else
-+# define YTAG1_SIZE 9
-+#endif
-+
-+#if 0
-+/* Use the following nand_ecclayout with MTD when using
-+ * CONFIG_YAFFS_9BYTE_TAGS and the older on-NAND tags layout.
-+ * If you have existing Yaffs images and the byte order differs from this,
-+ * adjust 'oobfree' to match your existing Yaffs data.
-+ *
-+ * This nand_ecclayout scatters/gathers to/from the old-yaffs layout with the
-+ * pageStatus byte (at NAND spare offset 4) scattered/gathered from/to
-+ * the 9th byte.
-+ *
-+ * Old-style on-NAND format: T0,T1,T2,T3,P,B,T4,T5,E0,E1,E2,T6,T7,E3,E4,E5
-+ * We have/need PackedTags1 plus pageStatus: T0,T1,T2,T3,T4,T5,T6,T7,P
-+ * where Tn are the tag bytes, En are MTD's ECC bytes, P is the pageStatus
-+ * byte and B is the small-page bad-block indicator byte.
-+ */
-+static struct nand_ecclayout nand_oob_16 = {
-+	.eccbytes = 6,
-+	.eccpos = { 8, 9, 10, 13, 14, 15 },
-+	.oobavail = 9,
-+	.oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
-+};
-+#endif
-+
-+/* Write a chunk (page) of data to NAND.
-+ *
-+ * Caller always provides ExtendedTags data which are converted to a more
-+ * compact (packed) form for storage in NAND.  A mini-ECC runs over the
-+ * contents of the tags meta-data; used to valid the tags when read.
-+ *
-+ *  - Pack ExtendedTags to PackedTags1 form
-+ *  - Compute mini-ECC for PackedTags1
-+ *  - Write data and packed tags to NAND.
-+ *
-+ * Note: Due to the use of the PackedTags1 meta-data which does not include
-+ * a full sequence number (as found in the larger PackedTags2 form) it is
-+ * necessary for Yaffs to re-write a chunk/page (just once) to mark it as
-+ * discarded and dirty.  This is not ideal: newer NAND parts are supposed
-+ * to be written just once.  When Yaffs performs this operation, this
-+ * function is called with a NULL data pointer -- calling MTD write_oob
-+ * without data is valid usage (2.6.17).
-+ *
-+ * Any underlying MTD error results in YAFFS_FAIL.
-+ * Returns YAFFS_OK or YAFFS_FAIL.
-+ */
-+int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev,
-+	int chunkInNAND, const __u8 *data, const yaffs_ExtendedTags *etags)
-+{
-+	struct mtd_info *mtd = dev->genericDevice;
-+	int chunkBytes = dev->nDataBytesPerChunk;
-+	loff_t addr = ((loff_t)chunkInNAND) * chunkBytes;
-+	struct mtd_oob_ops ops;
-+	yaffs_PackedTags1 pt1;
-+	int retval;
-+
-+	/* we assume that PackedTags1 and yaffs_Tags are compatible */
-+	compile_time_assertion(sizeof(yaffs_PackedTags1) == 12);
-+	compile_time_assertion(sizeof(yaffs_Tags) == 8);
-+
-+	dev->nPageWrites++;
-+
-+	yaffs_PackTags1(&pt1, etags);
-+	yaffs_CalcTagsECC((yaffs_Tags *)&pt1);
-+
-+	/* When deleting a chunk, the upper layer provides only skeletal
-+	 * etags, one with chunkDeleted set.  However, we need to update the
-+	 * tags, not erase them completely.  So we use the NAND write property
-+	 * that only zeroed-bits stick and set tag bytes to all-ones and
-+	 * zero just the (not) deleted bit.
-+	 */
-+#ifndef CONFIG_YAFFS_9BYTE_TAGS
-+	if (etags->chunkDeleted) {
-+		memset(&pt1, 0xff, 8);
-+		/* clear delete status bit to indicate deleted */
-+		pt1.deleted = 0;
-+	}
-+#else
-+	((__u8 *)&pt1)[8] = 0xff;
-+	if (etags->chunkDeleted) {
-+		memset(&pt1, 0xff, 8);
-+		/* zero pageStatus byte to indicate deleted */
-+		((__u8 *)&pt1)[8] = 0;
-+	}
-+#endif
-+
-+	memset(&ops, 0, sizeof(ops));
-+	ops.mode = MTD_OOB_AUTO;
-+	ops.len = (data) ? chunkBytes : 0;
-+	ops.ooblen = YTAG1_SIZE;
-+	ops.datbuf = (__u8 *)data;
-+	ops.oobbuf = (__u8 *)&pt1;
-+
-+	retval = mtd->write_oob(mtd, addr, &ops);
-+	if (retval) {
-+		yaffs_trace(YAFFS_TRACE_MTD,
-+			"write_oob failed, chunk %d, mtd error %d\n",
-+			chunkInNAND, retval);
-+	}
-+	return retval ? YAFFS_FAIL : YAFFS_OK;
-+}
-+
-+/* Return with empty ExtendedTags but add eccResult.
-+ */
-+static int rettags(yaffs_ExtendedTags *etags, int eccResult, int retval)
-+{
-+	if (etags) {
-+		memset(etags, 0, sizeof(*etags));
-+		etags->eccResult = eccResult;
-+	}
-+	return retval;
-+}
-+
-+/* Read a chunk (page) from NAND.
-+ *
-+ * Caller expects ExtendedTags data to be usable even on error; that is,
-+ * all members except eccResult and blockBad are zeroed.
-+ *
-+ *  - Check ECC results for data (if applicable)
-+ *  - Check for blank/erased block (return empty ExtendedTags if blank)
-+ *  - Check the PackedTags1 mini-ECC (correct if necessary/possible)
-+ *  - Convert PackedTags1 to ExtendedTags
-+ *  - Update eccResult and blockBad members to refect state.
-+ *
-+ * Returns YAFFS_OK or YAFFS_FAIL.
-+ */
-+int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev,
-+	int chunkInNAND, __u8 *data, yaffs_ExtendedTags *etags)
-+{
-+	struct mtd_info *mtd = dev->genericDevice;
-+	int chunkBytes = dev->nDataBytesPerChunk;
-+	loff_t addr = ((loff_t)chunkInNAND) * chunkBytes;
-+	int eccres = YAFFS_ECC_RESULT_NO_ERROR;
-+	struct mtd_oob_ops ops;
-+	yaffs_PackedTags1 pt1;
-+	int retval;
-+	int deleted;
-+
-+	dev->nPageReads++;
-+
-+	memset(&ops, 0, sizeof(ops));
-+	ops.mode = MTD_OOB_AUTO;
-+	ops.len = (data) ? chunkBytes : 0;
-+	ops.ooblen = YTAG1_SIZE;
-+	ops.datbuf = data;
-+	ops.oobbuf = (__u8 *)&pt1;
-+
-+#if (MTD_VERSION_CODE < MTD_VERSION(2, 6, 20))
-+	/* In MTD 2.6.18 to 2.6.19 nand_base.c:nand_do_read_oob() has a bug;
-+	 * help it out with ops.len = ops.ooblen when ops.datbuf == NULL.
-+	 */
-+	ops.len = (ops.datbuf) ? ops.len : ops.ooblen;
-+#endif
-+	/* Read page and oob using MTD.
-+	 * Check status and determine ECC result.
-+	 */
-+	retval = mtd->read_oob(mtd, addr, &ops);
-+	if (retval) {
-+		yaffs_trace(YAFFS_TRACE_MTD,
-+			"read_oob failed, chunk %d, mtd error %d\n",
-+			chunkInNAND, retval);
-+	}
-+
-+	switch (retval) {
-+	case 0:
-+		/* no error */
-+		break;
-+
-+	case -EUCLEAN:
-+		/* MTD's ECC fixed the data */
-+		eccres = YAFFS_ECC_RESULT_FIXED;
-+		dev->eccFixed++;
-+		break;
-+
-+	case -EBADMSG:
-+		/* MTD's ECC could not fix the data */
-+		dev->eccUnfixed++;
-+		/* fall into... */
-+	default:
-+		rettags(etags, YAFFS_ECC_RESULT_UNFIXED, 0);
-+		etags->blockBad = (mtd->block_isbad)(mtd, addr);
-+		return YAFFS_FAIL;
-+	}
-+
-+	/* Check for a blank/erased chunk.
-+	 */
-+	if (yaffs_CheckFF((__u8 *)&pt1, 8)) {
-+		/* when blank, upper layers want eccResult to be <= NO_ERROR */
-+		return rettags(etags, YAFFS_ECC_RESULT_NO_ERROR, YAFFS_OK);
-+	}
-+
-+#ifndef CONFIG_YAFFS_9BYTE_TAGS
-+	/* Read deleted status (bit) then return it to it's non-deleted
-+	 * state before performing tags mini-ECC check. pt1.deleted is
-+	 * inverted.
-+	 */
-+	deleted = !pt1.deleted;
-+	pt1.deleted = 1;
-+#else
-+	deleted = (yaffs_CountBits(((__u8 *)&pt1)[8]) < 7);
-+#endif
-+
-+	/* Check the packed tags mini-ECC and correct if necessary/possible.
-+	 */
-+	retval = yaffs_CheckECCOnTags((yaffs_Tags *)&pt1);
-+	switch (retval) {
-+	case 0:
-+		/* no tags error, use MTD result */
-+		break;
-+	case 1:
-+		/* recovered tags-ECC error */
-+		dev->tagsEccFixed++;
-+		if (eccres == YAFFS_ECC_RESULT_NO_ERROR)
-+			eccres = YAFFS_ECC_RESULT_FIXED;
-+		break;
-+	default:
-+		/* unrecovered tags-ECC error */
-+		dev->tagsEccUnfixed++;
-+		return rettags(etags, YAFFS_ECC_RESULT_UNFIXED, YAFFS_FAIL);
-+	}
-+
-+	/* Unpack the tags to extended form and set ECC result.
-+	 * [set shouldBeFF just to keep yaffs_UnpackTags1 happy]
-+	 */
-+	pt1.shouldBeFF = 0xFFFFFFFF;
-+	yaffs_UnpackTags1(etags, &pt1);
-+	etags->eccResult = eccres;
-+
-+	/* Set deleted state */
-+	etags->chunkDeleted = deleted;
-+	return YAFFS_OK;
-+}
-+
-+/* Mark a block bad.
-+ *
-+ * This is a persistant state.
-+ * Use of this function should be rare.
-+ *
-+ * Returns YAFFS_OK or YAFFS_FAIL.
-+ */
-+int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo)
-+{
-+	struct mtd_info *mtd = dev->genericDevice;
-+	int blocksize = dev->nChunksPerBlock * dev->nDataBytesPerChunk;
-+	int retval;
-+
-+	yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, "marking block %d bad\n", blockNo);
-+
-+	retval = mtd->block_markbad(mtd, (loff_t)blocksize * blockNo);
-+	return (retval) ? YAFFS_FAIL : YAFFS_OK;
-+}
-+
-+/* Check any MTD prerequists.
-+ *
-+ * Returns YAFFS_OK or YAFFS_FAIL.
-+ */
-+static int nandmtd1_TestPrerequists(struct mtd_info *mtd)
-+{
-+	/* 2.6.18 has mtd->ecclayout->oobavail */
-+	/* 2.6.21 has mtd->ecclayout->oobavail and mtd->oobavail */
-+	int oobavail = mtd->ecclayout->oobavail;
-+
-+	if (oobavail < YTAG1_SIZE) {
-+		yaffs_trace(YAFFS_TRACE_ERROR,
-+			"mtd device has only %d bytes for tags, need %d\n",
-+			oobavail, YTAG1_SIZE);
-+		return YAFFS_FAIL;
-+	}
-+	return YAFFS_OK;
-+}
-+
-+/* Query for the current state of a specific block.
-+ *
-+ * Examine the tags of the first chunk of the block and return the state:
-+ *  - YAFFS_BLOCK_STATE_DEAD, the block is marked bad
-+ *  - YAFFS_BLOCK_STATE_NEEDS_SCANNING, the block is in use
-+ *  - YAFFS_BLOCK_STATE_EMPTY, the block is clean
-+ *
-+ * Always returns YAFFS_OK.
-+ */
-+int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
-+	yaffs_BlockState *pState, __u32 *pSequenceNumber)
-+{
-+	struct mtd_info *mtd = dev->genericDevice;
-+	int chunkNo = blockNo * dev->nChunksPerBlock;
-+	loff_t addr = (loff_t)chunkNo * dev->nDataBytesPerChunk;
-+	yaffs_ExtendedTags etags;
-+	int state = YAFFS_BLOCK_STATE_DEAD;
-+	int seqnum = 0;
-+	int retval;
-+
-+	/* We don't yet have a good place to test for MTD config prerequists.
-+	 * Do it here as we are called during the initial scan.
-+	 */
-+	if (nandmtd1_TestPrerequists(mtd) != YAFFS_OK)
-+		return YAFFS_FAIL;
-+
-+	retval = nandmtd1_ReadChunkWithTagsFromNAND(dev, chunkNo, NULL, &etags);
-+	etags.blockBad = (mtd->block_isbad)(mtd, addr);
-+	if (etags.blockBad) {
-+		yaffs_trace(YAFFS_TRACE_BAD_BLOCKS,
-+			"block %d is marked bad\n", blockNo);
-+		state = YAFFS_BLOCK_STATE_DEAD;
-+	} else if (etags.eccResult != YAFFS_ECC_RESULT_NO_ERROR) {
-+		/* bad tags, need to look more closely */
-+		state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
-+	} else if (etags.chunkUsed) {
-+		state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
-+		seqnum = etags.sequenceNumber;
-+	} else {
-+		state = YAFFS_BLOCK_STATE_EMPTY;
-+	}
-+
-+	*pState = state;
-+	*pSequenceNumber = seqnum;
-+
-+	/* query always succeeds */
-+	return YAFFS_OK;
-+}
-+
-+#endif /*MTD_VERSION*/
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_mtdif1.h linux-2.6.30/fs/yaffs2/yaffs_mtdif1.h
---- linux-2.6.30.orig/fs/yaffs2/yaffs_mtdif1.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_mtdif1.h	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,28 @@
-+/*
-+ * YAFFS: Yet another Flash File System. A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU Lesser General Public License version 2.1 as
-+ * published by the Free Software Foundation.
-+ *
-+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
-+ */
-+
-+#ifndef __YAFFS_MTDIF1_H__
-+#define __YAFFS_MTDIF1_H__
-+
-+int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND,
-+	const __u8 *data, const yaffs_ExtendedTags *tags);
-+
-+int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
-+	__u8 *data, yaffs_ExtendedTags *tags);
-+
-+int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo);
-+
-+int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
-+	yaffs_BlockState *state, __u32 *sequenceNumber);
-+
-+#endif
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_mtdif2.c linux-2.6.30/fs/yaffs2/yaffs_mtdif2.c
---- linux-2.6.30.orig/fs/yaffs2/yaffs_mtdif2.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_mtdif2.c	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,246 @@
-+/*
-+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+/* mtd interface for YAFFS2 */
-+
-+const char *yaffs_mtdif2_c_version =
-+	"$Id: yaffs_mtdif2.c,v 1.23 2009-03-06 17:20:53 wookey Exp $";
-+
-+#include "yportenv.h"
-+
-+
-+#include "yaffs_mtdif2.h"
-+
-+#include "linux/mtd/mtd.h"
-+#include "linux/types.h"
-+#include "linux/time.h"
-+
-+#include "yaffs_packedtags2.h"
-+
-+/* NB For use with inband tags....
-+ * We assume that the data buffer is of size totalBytersPerChunk so that we can also
-+ * use it to load the tags.
-+ */
-+int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND,
-+				      const __u8 *data,
-+				      const yaffs_ExtendedTags *tags)
-+{
-+	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
-+#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
-+	struct mtd_oob_ops ops;
-+#else
-+	size_t dummy;
-+#endif
-+	int retval = 0;
-+
-+	loff_t addr;
-+
-+	yaffs_PackedTags2 pt;
-+
-+	T(YAFFS_TRACE_MTD,
-+	  (TSTR
-+	   ("nandmtd2_WriteChunkWithTagsToNAND chunk %d data %p tags %p"
-+	    TENDSTR), chunkInNAND, data, tags));
-+
-+
-+	addr  = ((loff_t) chunkInNAND) * dev->totalBytesPerChunk;
-+
-+	/* For yaffs2 writing there must be both data and tags.
-+	 * If we're using inband tags, then the tags are stuffed into
-+	 * the end of the data buffer.
-+	 */
-+	if (!data || !tags)
-+		BUG();
-+	else if (dev->inbandTags) {
-+		yaffs_PackedTags2TagsPart *pt2tp;
-+		pt2tp = (yaffs_PackedTags2TagsPart *)(data + dev->nDataBytesPerChunk);
-+		yaffs_PackTags2TagsPart(pt2tp, tags);
-+	} else
-+		yaffs_PackTags2(&pt, tags);
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
-+	ops.mode = MTD_OOB_AUTO;
-+	ops.ooblen = (dev->inbandTags) ? 0 : sizeof(pt);
-+	ops.len = dev->totalBytesPerChunk;
-+	ops.ooboffs = 0;
-+	ops.datbuf = (__u8 *)data;
-+	ops.oobbuf = (dev->inbandTags) ? NULL : (void *)&pt;
-+	retval = mtd->write_oob(mtd, addr, &ops);
-+
-+#else
-+	if (!dev->inbandTags) {
-+		retval =
-+		    mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk,
-+				   &dummy, data, (__u8 *) &pt, NULL);
-+	} else {
-+		retval =
-+		    mtd->write(mtd, addr, dev->totalBytesPerChunk, &dummy,
-+			       data);
-+	}
-+#endif
-+
-+	if (retval == 0)
-+		return YAFFS_OK;
-+	else
-+		return YAFFS_FAIL;
-+}
-+
-+int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
-+				       __u8 *data, yaffs_ExtendedTags *tags)
-+{
-+	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
-+#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
-+	struct mtd_oob_ops ops;
-+#endif
-+	size_t dummy;
-+	int retval = 0;
-+	int localData = 0;
-+
-+	loff_t addr = ((loff_t) chunkInNAND) * dev->totalBytesPerChunk;
-+
-+	yaffs_PackedTags2 pt;
-+
-+	T(YAFFS_TRACE_MTD,
-+	  (TSTR
-+	   ("nandmtd2_ReadChunkWithTagsFromNAND chunk %d data %p tags %p"
-+	    TENDSTR), chunkInNAND, data, tags));
-+
-+	if (dev->inbandTags) {
-+
-+		if (!data) {
-+			localData = 1;
-+			data = yaffs_GetTempBuffer(dev, __LINE__);
-+		}
-+
-+
-+	}
-+
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
-+	if (dev->inbandTags || (data && !tags))
-+		retval = mtd->read(mtd, addr, dev->totalBytesPerChunk,
-+				&dummy, data);
-+	else if (tags) {
-+		ops.mode = MTD_OOB_AUTO;
-+		ops.ooblen = sizeof(pt);
-+		ops.len = data ? dev->nDataBytesPerChunk : sizeof(pt);
-+		ops.ooboffs = 0;
-+		ops.datbuf = data;
-+		ops.oobbuf = dev->spareBuffer;
-+		retval = mtd->read_oob(mtd, addr, &ops);
-+	}
-+#else
-+	if (!dev->inbandTags && data && tags) {
-+
-+		retval = mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk,
-+					  &dummy, data, dev->spareBuffer,
-+					  NULL);
-+	} else {
-+		if (data)
-+			retval =
-+			    mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy,
-+				      data);
-+		if (!dev->inbandTags && tags)
-+			retval =
-+			    mtd->read_oob(mtd, addr, mtd->oobsize, &dummy,
-+					  dev->spareBuffer);
-+	}
-+#endif
-+
-+
-+	if (dev->inbandTags) {
-+		if (tags) {
-+			yaffs_PackedTags2TagsPart *pt2tp;
-+			pt2tp = (yaffs_PackedTags2TagsPart *)&data[dev->nDataBytesPerChunk];
-+			yaffs_UnpackTags2TagsPart(tags, pt2tp);
-+		}
-+	} else {
-+		if (tags) {
-+			memcpy(&pt, dev->spareBuffer, sizeof(pt));
-+			yaffs_UnpackTags2(tags, &pt);
-+		}
-+	}
-+
-+	if (localData)
-+		yaffs_ReleaseTempBuffer(dev, data, __LINE__);
-+
-+	if (tags && retval == -EBADMSG && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR)
-+		tags->eccResult = YAFFS_ECC_RESULT_UNFIXED;
-+	if (retval == 0)
-+		return YAFFS_OK;
-+	else
-+		return YAFFS_FAIL;
-+}
-+
-+int nandmtd2_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo)
-+{
-+	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
-+	int retval;
-+	T(YAFFS_TRACE_MTD,
-+	  (TSTR("nandmtd2_MarkNANDBlockBad %d" TENDSTR), blockNo));
-+
-+	retval =
-+	    mtd->block_markbad(mtd,
-+			       blockNo * dev->nChunksPerBlock *
-+			       dev->totalBytesPerChunk);
-+
-+	if (retval == 0)
-+		return YAFFS_OK;
-+	else
-+		return YAFFS_FAIL;
-+
-+}
-+
-+int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
-+			    yaffs_BlockState *state, __u32 *sequenceNumber)
-+{
-+	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
-+	int retval;
-+
-+	T(YAFFS_TRACE_MTD,
-+	  (TSTR("nandmtd2_QueryNANDBlock %d" TENDSTR), blockNo));
-+	retval =
-+	    mtd->block_isbad(mtd,
-+			     blockNo * dev->nChunksPerBlock *
-+			     dev->totalBytesPerChunk);
-+
-+	if (retval) {
-+		T(YAFFS_TRACE_MTD, (TSTR("block is bad" TENDSTR)));
-+
-+		*state = YAFFS_BLOCK_STATE_DEAD;
-+		*sequenceNumber = 0;
-+	} else {
-+		yaffs_ExtendedTags t;
-+		nandmtd2_ReadChunkWithTagsFromNAND(dev,
-+						   blockNo *
-+						   dev->nChunksPerBlock, NULL,
-+						   &t);
-+
-+		if (t.chunkUsed) {
-+			*sequenceNumber = t.sequenceNumber;
-+			*state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
-+		} else {
-+			*sequenceNumber = 0;
-+			*state = YAFFS_BLOCK_STATE_EMPTY;
-+		}
-+	}
-+	T(YAFFS_TRACE_MTD,
-+	  (TSTR("block is bad seq %d state %d" TENDSTR), *sequenceNumber,
-+	   *state));
-+
-+	if (retval == 0)
-+		return YAFFS_OK;
-+	else
-+		return YAFFS_FAIL;
-+}
-+
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_mtdif2.h linux-2.6.30/fs/yaffs2/yaffs_mtdif2.h
---- linux-2.6.30.orig/fs/yaffs2/yaffs_mtdif2.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_mtdif2.h	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,29 @@
-+/*
-+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU Lesser General Public License version 2.1 as
-+ * published by the Free Software Foundation.
-+ *
-+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
-+ */
-+
-+#ifndef __YAFFS_MTDIF2_H__
-+#define __YAFFS_MTDIF2_H__
-+
-+#include "yaffs_guts.h"
-+int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND,
-+				const __u8 *data,
-+				const yaffs_ExtendedTags *tags);
-+int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
-+				__u8 *data, yaffs_ExtendedTags *tags);
-+int nandmtd2_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo);
-+int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
-+			yaffs_BlockState *state, __u32 *sequenceNumber);
-+
-+#endif
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_mtdif.c linux-2.6.30/fs/yaffs2/yaffs_mtdif.c
---- linux-2.6.30.orig/fs/yaffs2/yaffs_mtdif.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_mtdif.c	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,241 @@
-+/*
-+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+const char *yaffs_mtdif_c_version =
-+	"$Id: yaffs_mtdif.c,v 1.22 2009-03-06 17:20:51 wookey Exp $";
-+
-+#include "yportenv.h"
-+
-+
-+#include "yaffs_mtdif.h"
-+
-+#include "linux/mtd/mtd.h"
-+#include "linux/types.h"
-+#include "linux/time.h"
-+#include "linux/mtd/nand.h"
-+
-+#if (MTD_VERSION_CODE < MTD_VERSION(2, 6, 18))
-+static struct nand_oobinfo yaffs_oobinfo = {
-+	.useecc = 1,
-+	.eccbytes = 6,
-+	.eccpos = {8, 9, 10, 13, 14, 15}
-+};
-+
-+static struct nand_oobinfo yaffs_noeccinfo = {
-+	.useecc = 0,
-+};
-+#endif
-+
-+#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
-+static inline void translate_spare2oob(const yaffs_Spare *spare, __u8 *oob)
-+{
-+	oob[0] = spare->tagByte0;
-+	oob[1] = spare->tagByte1;
-+	oob[2] = spare->tagByte2;
-+	oob[3] = spare->tagByte3;
-+	oob[4] = spare->tagByte4;
-+	oob[5] = spare->tagByte5 & 0x3f;
-+	oob[5] |= spare->blockStatus == 'Y' ? 0 : 0x80;
-+	oob[5] |= spare->pageStatus == 0 ? 0 : 0x40;
-+	oob[6] = spare->tagByte6;
-+	oob[7] = spare->tagByte7;
-+}
-+
-+static inline void translate_oob2spare(yaffs_Spare *spare, __u8 *oob)
-+{
-+	struct yaffs_NANDSpare *nspare = (struct yaffs_NANDSpare *)spare;
-+	spare->tagByte0 = oob[0];
-+	spare->tagByte1 = oob[1];
-+	spare->tagByte2 = oob[2];
-+	spare->tagByte3 = oob[3];
-+	spare->tagByte4 = oob[4];
-+	spare->tagByte5 = oob[5] == 0xff ? 0xff : oob[5] & 0x3f;
-+	spare->blockStatus = oob[5] & 0x80 ? 0xff : 'Y';
-+	spare->pageStatus = oob[5] & 0x40 ? 0xff : 0;
-+	spare->ecc1[0] = spare->ecc1[1] = spare->ecc1[2] = 0xff;
-+	spare->tagByte6 = oob[6];
-+	spare->tagByte7 = oob[7];
-+	spare->ecc2[0] = spare->ecc2[1] = spare->ecc2[2] = 0xff;
-+
-+	nspare->eccres1 = nspare->eccres2 = 0; /* FIXME */
-+}
-+#endif
-+
-+int nandmtd_WriteChunkToNAND(yaffs_Device *dev, int chunkInNAND,
-+			     const __u8 *data, const yaffs_Spare *spare)
-+{
-+	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
-+#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
-+	struct mtd_oob_ops ops;
-+#endif
-+	size_t dummy;
-+	int retval = 0;
-+
-+	loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
-+#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
-+	__u8 spareAsBytes[8]; /* OOB */
-+
-+	if (data && !spare)
-+		retval = mtd->write(mtd, addr, dev->nDataBytesPerChunk,
-+				&dummy, data);
-+	else if (spare) {
-+		if (dev->useNANDECC) {
-+			translate_spare2oob(spare, spareAsBytes);
-+			ops.mode = MTD_OOB_AUTO;
-+			ops.ooblen = 8; /* temp hack */
-+		} else {
-+			ops.mode = MTD_OOB_RAW;
-+			ops.ooblen = YAFFS_BYTES_PER_SPARE;
-+		}
-+		ops.len = data ? dev->nDataBytesPerChunk : ops.ooblen;
-+		ops.datbuf = (u8 *)data;
-+		ops.ooboffs = 0;
-+		ops.oobbuf = spareAsBytes;
-+		retval = mtd->write_oob(mtd, addr, &ops);
-+	}
-+#else
-+	__u8 *spareAsBytes = (__u8 *) spare;
-+
-+	if (data && spare) {
-+		if (dev->useNANDECC)
-+			retval =
-+			    mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk,
-+					   &dummy, data, spareAsBytes,
-+					   &yaffs_oobinfo);
-+		else
-+			retval =
-+			    mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk,
-+					   &dummy, data, spareAsBytes,
-+					   &yaffs_noeccinfo);
-+	} else {
-+		if (data)
-+			retval =
-+			    mtd->write(mtd, addr, dev->nDataBytesPerChunk, &dummy,
-+				       data);
-+		if (spare)
-+			retval =
-+			    mtd->write_oob(mtd, addr, YAFFS_BYTES_PER_SPARE,
-+					   &dummy, spareAsBytes);
-+	}
-+#endif
-+
-+	if (retval == 0)
-+		return YAFFS_OK;
-+	else
-+		return YAFFS_FAIL;
-+}
-+
-+int nandmtd_ReadChunkFromNAND(yaffs_Device *dev, int chunkInNAND, __u8 *data,
-+			      yaffs_Spare *spare)
-+{
-+	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
-+#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
-+	struct mtd_oob_ops ops;
-+#endif
-+	size_t dummy;
-+	int retval = 0;
-+
-+	loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
-+#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
-+	__u8 spareAsBytes[8]; /* OOB */
-+
-+	if (data && !spare)
-+		retval = mtd->read(mtd, addr, dev->nDataBytesPerChunk,
-+				&dummy, data);
-+	else if (spare) {
-+		if (dev->useNANDECC) {
-+			ops.mode = MTD_OOB_AUTO;
-+			ops.ooblen = 8; /* temp hack */
-+		} else {
-+			ops.mode = MTD_OOB_RAW;
-+			ops.ooblen = YAFFS_BYTES_PER_SPARE;
-+		}
-+		ops.len = data ? dev->nDataBytesPerChunk : ops.ooblen;
-+		ops.datbuf = data;
-+		ops.ooboffs = 0;
-+		ops.oobbuf = spareAsBytes;
-+		retval = mtd->read_oob(mtd, addr, &ops);
-+		if (dev->useNANDECC)
-+			translate_oob2spare(spare, spareAsBytes);
-+	}
-+#else
-+	__u8 *spareAsBytes = (__u8 *) spare;
-+
-+	if (data && spare) {
-+		if (dev->useNANDECC) {
-+			/* Careful, this call adds 2 ints */
-+			/* to the end of the spare data.  Calling function */
-+			/* should allocate enough memory for spare, */
-+			/* i.e. [YAFFS_BYTES_PER_SPARE+2*sizeof(int)]. */
-+			retval =
-+			    mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk,
-+					  &dummy, data, spareAsBytes,
-+					  &yaffs_oobinfo);
-+		} else {
-+			retval =
-+			    mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk,
-+					  &dummy, data, spareAsBytes,
-+					  &yaffs_noeccinfo);
-+		}
-+	} else {
-+		if (data)
-+			retval =
-+			    mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy,
-+				      data);
-+		if (spare)
-+			retval =
-+			    mtd->read_oob(mtd, addr, YAFFS_BYTES_PER_SPARE,
-+					  &dummy, spareAsBytes);
-+	}
-+#endif
-+
-+	if (retval == 0)
-+		return YAFFS_OK;
-+	else
-+		return YAFFS_FAIL;
-+}
-+
-+int nandmtd_EraseBlockInNAND(yaffs_Device *dev, int blockNumber)
-+{
-+	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
-+	__u32 addr =
-+	    ((loff_t) blockNumber) * dev->nDataBytesPerChunk
-+		* dev->nChunksPerBlock;
-+	struct erase_info ei;
-+	int retval = 0;
-+
-+	ei.mtd = mtd;
-+	ei.addr = addr;
-+	ei.len = dev->nDataBytesPerChunk * dev->nChunksPerBlock;
-+	ei.time = 1000;
-+	ei.retries = 2;
-+	ei.callback = NULL;
-+	ei.priv = (u_long) dev;
-+
-+	/* Todo finish off the ei if required */
-+
-+	sema_init(&dev->sem, 0);
-+
-+	retval = mtd->erase(mtd, &ei);
-+
-+	if (retval == 0)
-+		return YAFFS_OK;
-+	else
-+		return YAFFS_FAIL;
-+}
-+
-+int nandmtd_InitialiseNAND(yaffs_Device *dev)
-+{
-+	return YAFFS_OK;
-+}
-+
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_mtdif.h linux-2.6.30/fs/yaffs2/yaffs_mtdif.h
---- linux-2.6.30.orig/fs/yaffs2/yaffs_mtdif.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_mtdif.h	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,32 @@
-+/*
-+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU Lesser General Public License version 2.1 as
-+ * published by the Free Software Foundation.
-+ *
-+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
-+ */
-+
-+#ifndef __YAFFS_MTDIF_H__
-+#define __YAFFS_MTDIF_H__
-+
-+#include "yaffs_guts.h"
-+
-+#if (MTD_VERSION_CODE < MTD_VERSION(2, 6, 18))
-+extern struct nand_oobinfo yaffs_oobinfo;
-+extern struct nand_oobinfo yaffs_noeccinfo;
-+#endif
-+
-+int nandmtd_WriteChunkToNAND(yaffs_Device *dev, int chunkInNAND,
-+			const __u8 *data, const yaffs_Spare *spare);
-+int nandmtd_ReadChunkFromNAND(yaffs_Device *dev, int chunkInNAND, __u8 *data,
-+			yaffs_Spare *spare);
-+int nandmtd_EraseBlockInNAND(yaffs_Device *dev, int blockNumber);
-+int nandmtd_InitialiseNAND(yaffs_Device *dev);
-+#endif
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_nand.c linux-2.6.30/fs/yaffs2/yaffs_nand.c
---- linux-2.6.30.orig/fs/yaffs2/yaffs_nand.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_nand.c	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,135 @@
-+/*
-+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+const char *yaffs_nand_c_version =
-+	"$Id: yaffs_nand.c,v 1.10 2009-03-06 17:20:54 wookey Exp $";
-+
-+#include "yaffs_nand.h"
-+#include "yaffs_tagscompat.h"
-+#include "yaffs_tagsvalidity.h"
-+
-+#include "yaffs_getblockinfo.h"
-+
-+int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
-+					   __u8 *buffer,
-+					   yaffs_ExtendedTags *tags)
-+{
-+	int result;
-+	yaffs_ExtendedTags localTags;
-+
-+	int realignedChunkInNAND = chunkInNAND - dev->chunkOffset;
-+
-+	/* If there are no tags provided, use local tags to get prioritised gc working */
-+	if (!tags)
-+		tags = &localTags;
-+
-+	if (dev->readChunkWithTagsFromNAND)
-+		result = dev->readChunkWithTagsFromNAND(dev, realignedChunkInNAND, buffer,
-+						      tags);
-+	else
-+		result = yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(dev,
-+									realignedChunkInNAND,
-+									buffer,
-+									tags);
-+	if (tags &&
-+	   tags->eccResult > YAFFS_ECC_RESULT_NO_ERROR) {
-+
-+		yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, chunkInNAND/dev->nChunksPerBlock);
-+		yaffs_HandleChunkError(dev, bi);
-+	}
-+
-+	return result;
-+}
-+
-+int yaffs_WriteChunkWithTagsToNAND(yaffs_Device *dev,
-+						   int chunkInNAND,
-+						   const __u8 *buffer,
-+						   yaffs_ExtendedTags *tags)
-+{
-+	chunkInNAND -= dev->chunkOffset;
-+
-+
-+	if (tags) {
-+		tags->sequenceNumber = dev->sequenceNumber;
-+		tags->chunkUsed = 1;
-+		if (!yaffs_ValidateTags(tags)) {
-+			T(YAFFS_TRACE_ERROR,
-+			  (TSTR("Writing uninitialised tags" TENDSTR)));
-+			YBUG();
-+		}
-+		T(YAFFS_TRACE_WRITE,
-+		  (TSTR("Writing chunk %d tags %d %d" TENDSTR), chunkInNAND,
-+		   tags->objectId, tags->chunkId));
-+	} else {
-+		T(YAFFS_TRACE_ERROR, (TSTR("Writing with no tags" TENDSTR)));
-+		YBUG();
-+	}
-+
-+	if (dev->writeChunkWithTagsToNAND)
-+		return dev->writeChunkWithTagsToNAND(dev, chunkInNAND, buffer,
-+						     tags);
-+	else
-+		return yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(dev,
-+								       chunkInNAND,
-+								       buffer,
-+								       tags);
-+}
-+
-+int yaffs_MarkBlockBad(yaffs_Device *dev, int blockNo)
-+{
-+	blockNo -= dev->blockOffset;
-+
-+;
-+	if (dev->markNANDBlockBad)
-+		return dev->markNANDBlockBad(dev, blockNo);
-+	else
-+		return yaffs_TagsCompatabilityMarkNANDBlockBad(dev, blockNo);
-+}
-+
-+int yaffs_QueryInitialBlockState(yaffs_Device *dev,
-+						 int blockNo,
-+						 yaffs_BlockState *state,
-+						 __u32 *sequenceNumber)
-+{
-+	blockNo -= dev->blockOffset;
-+
-+	if (dev->queryNANDBlock)
-+		return dev->queryNANDBlock(dev, blockNo, state, sequenceNumber);
-+	else
-+		return yaffs_TagsCompatabilityQueryNANDBlock(dev, blockNo,
-+							     state,
-+							     sequenceNumber);
-+}
-+
-+
-+int yaffs_EraseBlockInNAND(struct yaffs_DeviceStruct *dev,
-+				  int blockInNAND)
-+{
-+	int result;
-+
-+	blockInNAND -= dev->blockOffset;
-+
-+
-+	dev->nBlockErasures++;
-+	result = dev->eraseBlockInNAND(dev, blockInNAND);
-+
-+	return result;
-+}
-+
-+int yaffs_InitialiseNAND(struct yaffs_DeviceStruct *dev)
-+{
-+	return dev->initialiseNAND(dev);
-+}
-+
-+
-+
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_nandemul2k.h linux-2.6.30/fs/yaffs2/yaffs_nandemul2k.h
---- linux-2.6.30.orig/fs/yaffs2/yaffs_nandemul2k.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_nandemul2k.h	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,39 @@
-+/*
-+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU Lesser General Public License version 2.1 as
-+ * published by the Free Software Foundation.
-+ *
-+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
-+ */
-+
-+/* Interface to emulated NAND functions (2k page size) */
-+
-+#ifndef __YAFFS_NANDEMUL2K_H__
-+#define __YAFFS_NANDEMUL2K_H__
-+
-+#include "yaffs_guts.h"
-+
-+int nandemul2k_WriteChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev,
-+					int chunkInNAND, const __u8 *data,
-+					const yaffs_ExtendedTags *tags);
-+int nandemul2k_ReadChunkWithTagsFromNAND(struct yaffs_DeviceStruct *dev,
-+					 int chunkInNAND, __u8 *data,
-+					 yaffs_ExtendedTags *tags);
-+int nandemul2k_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo);
-+int nandemul2k_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
-+			      yaffs_BlockState *state, __u32 *sequenceNumber);
-+int nandemul2k_EraseBlockInNAND(struct yaffs_DeviceStruct *dev,
-+				int blockInNAND);
-+int nandemul2k_InitialiseNAND(struct yaffs_DeviceStruct *dev);
-+int nandemul2k_GetBytesPerChunk(void);
-+int nandemul2k_GetChunksPerBlock(void);
-+int nandemul2k_GetNumberOfBlocks(void);
-+
-+#endif
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_nand.h linux-2.6.30/fs/yaffs2/yaffs_nand.h
---- linux-2.6.30.orig/fs/yaffs2/yaffs_nand.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_nand.h	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,44 @@
-+/*
-+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU Lesser General Public License version 2.1 as
-+ * published by the Free Software Foundation.
-+ *
-+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
-+ */
-+
-+#ifndef __YAFFS_NAND_H__
-+#define __YAFFS_NAND_H__
-+#include "yaffs_guts.h"
-+
-+
-+
-+int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
-+					__u8 *buffer,
-+					yaffs_ExtendedTags *tags);
-+
-+int yaffs_WriteChunkWithTagsToNAND(yaffs_Device *dev,
-+						int chunkInNAND,
-+						const __u8 *buffer,
-+						yaffs_ExtendedTags *tags);
-+
-+int yaffs_MarkBlockBad(yaffs_Device *dev, int blockNo);
-+
-+int yaffs_QueryInitialBlockState(yaffs_Device *dev,
-+						int blockNo,
-+						yaffs_BlockState *state,
-+						unsigned *sequenceNumber);
-+
-+int yaffs_EraseBlockInNAND(struct yaffs_DeviceStruct *dev,
-+				  int blockInNAND);
-+
-+int yaffs_InitialiseNAND(struct yaffs_DeviceStruct *dev);
-+
-+#endif
-+
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_packedtags1.c linux-2.6.30/fs/yaffs2/yaffs_packedtags1.c
---- linux-2.6.30.orig/fs/yaffs2/yaffs_packedtags1.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_packedtags1.c	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,50 @@
-+/*
-+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+#include "yaffs_packedtags1.h"
-+#include "yportenv.h"
-+
-+void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ExtendedTags *t)
-+{
-+	pt->chunkId = t->chunkId;
-+	pt->serialNumber = t->serialNumber;
-+	pt->byteCount = t->byteCount;
-+	pt->objectId = t->objectId;
-+	pt->ecc = 0;
-+	pt->deleted = (t->chunkDeleted) ? 0 : 1;
-+	pt->unusedStuff = 0;
-+	pt->shouldBeFF = 0xFFFFFFFF;
-+
-+}
-+
-+void yaffs_UnpackTags1(yaffs_ExtendedTags *t, const yaffs_PackedTags1 *pt)
-+{
-+	static const __u8 allFF[] =
-+	    { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
-+0xff };
-+
-+	if (memcmp(allFF, pt, sizeof(yaffs_PackedTags1))) {
-+		t->blockBad = 0;
-+		if (pt->shouldBeFF != 0xFFFFFFFF)
-+			t->blockBad = 1;
-+		t->chunkUsed = 1;
-+		t->objectId = pt->objectId;
-+		t->chunkId = pt->chunkId;
-+		t->byteCount = pt->byteCount;
-+		t->eccResult = YAFFS_ECC_RESULT_NO_ERROR;
-+		t->chunkDeleted = (pt->deleted) ? 0 : 1;
-+		t->serialNumber = pt->serialNumber;
-+	} else {
-+		memset(t, 0, sizeof(yaffs_ExtendedTags));
-+	}
-+}
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_packedtags1.h linux-2.6.30/fs/yaffs2/yaffs_packedtags1.h
---- linux-2.6.30.orig/fs/yaffs2/yaffs_packedtags1.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_packedtags1.h	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,37 @@
-+/*
-+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU Lesser General Public License version 2.1 as
-+ * published by the Free Software Foundation.
-+ *
-+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
-+ */
-+
-+/* This is used to pack YAFFS1 tags, not YAFFS2 tags. */
-+
-+#ifndef __YAFFS_PACKEDTAGS1_H__
-+#define __YAFFS_PACKEDTAGS1_H__
-+
-+#include "yaffs_guts.h"
-+
-+typedef struct {
-+	unsigned chunkId:20;
-+	unsigned serialNumber:2;
-+	unsigned byteCount:10;
-+	unsigned objectId:18;
-+	unsigned ecc:12;
-+	unsigned deleted:1;
-+	unsigned unusedStuff:1;
-+	unsigned shouldBeFF;
-+
-+} yaffs_PackedTags1;
-+
-+void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ExtendedTags *t);
-+void yaffs_UnpackTags1(yaffs_ExtendedTags *t, const yaffs_PackedTags1 *pt);
-+#endif
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_packedtags2.c linux-2.6.30/fs/yaffs2/yaffs_packedtags2.c
---- linux-2.6.30.orig/fs/yaffs2/yaffs_packedtags2.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_packedtags2.c	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,206 @@
-+/*
-+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+#include "yaffs_packedtags2.h"
-+#include "yportenv.h"
-+#include "yaffs_tagsvalidity.h"
-+
-+/* This code packs a set of extended tags into a binary structure for
-+ * NAND storage
-+ */
-+
-+/* Some of the information is "extra" struff which can be packed in to
-+ * speed scanning
-+ * This is defined by having the EXTRA_HEADER_INFO_FLAG set.
-+ */
-+
-+/* Extra flags applied to chunkId */
-+
-+#define EXTRA_HEADER_INFO_FLAG	0x80000000
-+#define EXTRA_SHRINK_FLAG	0x40000000
-+#define EXTRA_SHADOWS_FLAG	0x20000000
-+#define EXTRA_SPARE_FLAGS	0x10000000
-+
-+#define ALL_EXTRA_FLAGS		0xF0000000
-+
-+/* Also, the top 4 bits of the object Id are set to the object type. */
-+#define EXTRA_OBJECT_TYPE_SHIFT (28)
-+#define EXTRA_OBJECT_TYPE_MASK  ((0x0F) << EXTRA_OBJECT_TYPE_SHIFT)
-+
-+
-+static void yaffs_DumpPackedTags2TagsPart(const yaffs_PackedTags2TagsPart *ptt)
-+{
-+	T(YAFFS_TRACE_MTD,
-+	  (TSTR("packed tags obj %d chunk %d byte %d seq %d" TENDSTR),
-+	   ptt->objectId, ptt->chunkId, ptt->byteCount,
-+	   ptt->sequenceNumber));
-+}
-+static void yaffs_DumpPackedTags2(const yaffs_PackedTags2 *pt)
-+{
-+	yaffs_DumpPackedTags2TagsPart(&pt->t);
-+}
-+
-+static void yaffs_DumpTags2(const yaffs_ExtendedTags *t)
-+{
-+	T(YAFFS_TRACE_MTD,
-+	  (TSTR
-+	   ("ext.tags eccres %d blkbad %d chused %d obj %d chunk%d byte %d del %d ser %d seq %d"
-+	    TENDSTR), t->eccResult, t->blockBad, t->chunkUsed, t->objectId,
-+	   t->chunkId, t->byteCount, t->chunkDeleted, t->serialNumber,
-+	   t->sequenceNumber));
-+
-+}
-+
-+void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *ptt,
-+		const yaffs_ExtendedTags *t)
-+{
-+	ptt->chunkId = t->chunkId;
-+	ptt->sequenceNumber = t->sequenceNumber;
-+	ptt->byteCount = t->byteCount;
-+	ptt->objectId = t->objectId;
-+
-+	if (t->chunkId == 0 && t->extraHeaderInfoAvailable) {
-+		/* Store the extra header info instead */
-+		/* We save the parent object in the chunkId */
-+		ptt->chunkId = EXTRA_HEADER_INFO_FLAG
-+			| t->extraParentObjectId;
-+		if (t->extraIsShrinkHeader)
-+			ptt->chunkId |= EXTRA_SHRINK_FLAG;
-+		if (t->extraShadows)
-+			ptt->chunkId |= EXTRA_SHADOWS_FLAG;
-+
-+		ptt->objectId &= ~EXTRA_OBJECT_TYPE_MASK;
-+		ptt->objectId |=
-+		    (t->extraObjectType << EXTRA_OBJECT_TYPE_SHIFT);
-+
-+		if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK)
-+			ptt->byteCount = t->extraEquivalentObjectId;
-+		else if (t->extraObjectType == YAFFS_OBJECT_TYPE_FILE)
-+			ptt->byteCount = t->extraFileLength;
-+		else
-+			ptt->byteCount = 0;
-+	}
-+
-+	yaffs_DumpPackedTags2TagsPart(ptt);
-+	yaffs_DumpTags2(t);
-+}
-+
-+
-+void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ExtendedTags *t)
-+{
-+	yaffs_PackTags2TagsPart(&pt->t, t);
-+
-+#ifndef YAFFS_IGNORE_TAGS_ECC
-+	{
-+		yaffs_ECCCalculateOther((unsigned char *)&pt->t,
-+					sizeof(yaffs_PackedTags2TagsPart),
-+					&pt->ecc);
-+	}
-+#endif
-+}
-+
-+
-+void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags *t,
-+		yaffs_PackedTags2TagsPart *ptt)
-+{
-+
-+	memset(t, 0, sizeof(yaffs_ExtendedTags));
-+
-+	yaffs_InitialiseTags(t);
-+
-+	if (ptt->sequenceNumber != 0xFFFFFFFF) {
-+		t->blockBad = 0;
-+		t->chunkUsed = 1;
-+		t->objectId = ptt->objectId;
-+		t->chunkId = ptt->chunkId;
-+		t->byteCount = ptt->byteCount;
-+		t->chunkDeleted = 0;
-+		t->serialNumber = 0;
-+		t->sequenceNumber = ptt->sequenceNumber;
-+
-+		/* Do extra header info stuff */
-+
-+		if (ptt->chunkId & EXTRA_HEADER_INFO_FLAG) {
-+			t->chunkId = 0;
-+			t->byteCount = 0;
-+
-+			t->extraHeaderInfoAvailable = 1;
-+			t->extraParentObjectId =
-+			    ptt->chunkId & (~(ALL_EXTRA_FLAGS));
-+			t->extraIsShrinkHeader =
-+			    (ptt->chunkId & EXTRA_SHRINK_FLAG) ? 1 : 0;
-+			t->extraShadows =
-+			    (ptt->chunkId & EXTRA_SHADOWS_FLAG) ? 1 : 0;
-+			t->extraObjectType =
-+			    ptt->objectId >> EXTRA_OBJECT_TYPE_SHIFT;
-+			t->objectId &= ~EXTRA_OBJECT_TYPE_MASK;
-+
-+			if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK)
-+				t->extraEquivalentObjectId = ptt->byteCount;
-+			else
-+				t->extraFileLength = ptt->byteCount;
-+		}
-+	}
-+
-+	yaffs_DumpPackedTags2TagsPart(ptt);
-+	yaffs_DumpTags2(t);
-+
-+}
-+
-+
-+void yaffs_UnpackTags2(yaffs_ExtendedTags *t, yaffs_PackedTags2 *pt)
-+{
-+
-+	yaffs_ECCResult eccResult = YAFFS_ECC_RESULT_NO_ERROR;
-+
-+	if (pt->t.sequenceNumber != 0xFFFFFFFF) {
-+		/* Page is in use */
-+#ifndef YAFFS_IGNORE_TAGS_ECC
-+		{
-+			yaffs_ECCOther ecc;
-+			int result;
-+			yaffs_ECCCalculateOther((unsigned char *)&pt->t,
-+						sizeof
-+						(yaffs_PackedTags2TagsPart),
-+						&ecc);
-+			result =
-+			    yaffs_ECCCorrectOther((unsigned char *)&pt->t,
-+						  sizeof
-+						  (yaffs_PackedTags2TagsPart),
-+						  &pt->ecc, &ecc);
-+			switch (result) {
-+			case 0:
-+				eccResult = YAFFS_ECC_RESULT_NO_ERROR;
-+				break;
-+			case 1:
-+				eccResult = YAFFS_ECC_RESULT_FIXED;
-+				break;
-+			case -1:
-+				eccResult = YAFFS_ECC_RESULT_UNFIXED;
-+				break;
-+			default:
-+				eccResult = YAFFS_ECC_RESULT_UNKNOWN;
-+			}
-+		}
-+#endif
-+	}
-+
-+	yaffs_UnpackTags2TagsPart(t, &pt->t);
-+
-+	t->eccResult = eccResult;
-+
-+	yaffs_DumpPackedTags2(pt);
-+	yaffs_DumpTags2(t);
-+
-+}
-+
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_packedtags2.h linux-2.6.30/fs/yaffs2/yaffs_packedtags2.h
---- linux-2.6.30.orig/fs/yaffs2/yaffs_packedtags2.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_packedtags2.h	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,43 @@
-+/*
-+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU Lesser General Public License version 2.1 as
-+ * published by the Free Software Foundation.
-+ *
-+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
-+ */
-+
-+/* This is used to pack YAFFS2 tags, not YAFFS1tags. */
-+
-+#ifndef __YAFFS_PACKEDTAGS2_H__
-+#define __YAFFS_PACKEDTAGS2_H__
-+
-+#include "yaffs_guts.h"
-+#include "yaffs_ecc.h"
-+
-+typedef struct {
-+	unsigned sequenceNumber;
-+	unsigned objectId;
-+	unsigned chunkId;
-+	unsigned byteCount;
-+} yaffs_PackedTags2TagsPart;
-+
-+typedef struct {
-+	yaffs_PackedTags2TagsPart t;
-+	yaffs_ECCOther ecc;
-+} yaffs_PackedTags2;
-+
-+/* Full packed tags with ECC, used for oob tags */
-+void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ExtendedTags *t);
-+void yaffs_UnpackTags2(yaffs_ExtendedTags *t, yaffs_PackedTags2 *pt);
-+
-+/* Only the tags part (no ECC for use with inband tags */
-+void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *pt, const yaffs_ExtendedTags *t);
-+void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags *t, yaffs_PackedTags2TagsPart *pt);
-+#endif
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_qsort.c linux-2.6.30/fs/yaffs2/yaffs_qsort.c
---- linux-2.6.30.orig/fs/yaffs2/yaffs_qsort.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_qsort.c	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,163 @@
-+/*
-+ * Copyright (c) 1992, 1993
-+ *	The Regents of the University of California.  All rights reserved.
-+ *
-+ * Redistribution and use in source and binary forms, with or without
-+ * modification, are permitted provided that the following conditions
-+ * are met:
-+ * 1. Redistributions of source code must retain the above copyright
-+ *    notice, this list of conditions and the following disclaimer.
-+ * 2. Redistributions in binary form must reproduce the above copyright
-+ *    notice, this list of conditions and the following disclaimer in the
-+ *    documentation and/or other materials provided with the distribution.
-+ * 3. Neither the name of the University nor the names of its contributors
-+ *    may be used to endorse or promote products derived from this software
-+ *    without specific prior written permission.
-+ *
-+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-+ * SUCH DAMAGE.
-+ */
-+
-+#include "yportenv.h"
-+/* #include <linux/string.h> */
-+
-+/*
-+ * Qsort routine from Bentley & McIlroy's "Engineering a Sort Function".
-+ */
-+#define swapcode(TYPE, parmi, parmj, n) do { 		\
-+	long i = (n) / sizeof (TYPE); 			\
-+	register TYPE *pi = (TYPE *) (parmi); 		\
-+	register TYPE *pj = (TYPE *) (parmj); 		\
-+	do { 						\
-+		register TYPE	t = *pi;		\
-+		*pi++ = *pj;				\
-+		*pj++ = t;				\
-+	} while (--i > 0);				\
-+} while (0)
-+
-+#define SWAPINIT(a, es) swaptype = ((char *)a - (char *)0) % sizeof(long) || \
-+	es % sizeof(long) ? 2 : es == sizeof(long) ? 0 : 1;
-+
-+static __inline void
-+swapfunc(char *a, char *b, int n, int swaptype)
-+{
-+	if (swaptype <= 1)
-+		swapcode(long, a, b, n);
-+	else
-+		swapcode(char, a, b, n);
-+}
-+
-+#define yswap(a, b) do {					\
-+	if (swaptype == 0) {				\
-+		long t = *(long *)(a);			\
-+		*(long *)(a) = *(long *)(b);		\
-+		*(long *)(b) = t;			\
-+	} else						\
-+		swapfunc(a, b, es, swaptype);		\
-+} while (0)
-+
-+#define vecswap(a, b, n) 	if ((n) > 0) swapfunc(a, b, n, swaptype)
-+
-+static __inline char *
-+med3(char *a, char *b, char *c, int (*cmp)(const void *, const void *))
-+{
-+	return cmp(a, b) < 0 ?
-+		(cmp(b, c) < 0 ? b : (cmp(a, c) < 0 ? c : a))
-+		: (cmp(b, c) > 0 ? b : (cmp(a, c) < 0 ? a : c));
-+}
-+
-+#ifndef min
-+#define min(a, b) (((a) < (b)) ? (a) : (b))
-+#endif
-+
-+void
-+yaffs_qsort(void *aa, size_t n, size_t es,
-+	int (*cmp)(const void *, const void *))
-+{
-+	char *pa, *pb, *pc, *pd, *pl, *pm, *pn;
-+	int d, r, swaptype, swap_cnt;
-+	register char *a = aa;
-+
-+loop:	SWAPINIT(a, es);
-+	swap_cnt = 0;
-+	if (n < 7) {
-+		for (pm = (char *)a + es; pm < (char *) a + n * es; pm += es)
-+			for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0;
-+			     pl -= es)
-+				yswap(pl, pl - es);
-+		return;
-+	}
-+	pm = (char *)a + (n / 2) * es;
-+	if (n > 7) {
-+		pl = (char *)a;
-+		pn = (char *)a + (n - 1) * es;
-+		if (n > 40) {
-+			d = (n / 8) * es;
-+			pl = med3(pl, pl + d, pl + 2 * d, cmp);
-+			pm = med3(pm - d, pm, pm + d, cmp);
-+			pn = med3(pn - 2 * d, pn - d, pn, cmp);
-+		}
-+		pm = med3(pl, pm, pn, cmp);
-+	}
-+	yswap(a, pm);
-+	pa = pb = (char *)a + es;
-+
-+	pc = pd = (char *)a + (n - 1) * es;
-+	for (;;) {
-+		while (pb <= pc && (r = cmp(pb, a)) <= 0) {
-+			if (r == 0) {
-+				swap_cnt = 1;
-+				yswap(pa, pb);
-+				pa += es;
-+			}
-+			pb += es;
-+		}
-+		while (pb <= pc && (r = cmp(pc, a)) >= 0) {
-+			if (r == 0) {
-+				swap_cnt = 1;
-+				yswap(pc, pd);
-+				pd -= es;
-+			}
-+			pc -= es;
-+		}
-+		if (pb > pc)
-+			break;
-+		yswap(pb, pc);
-+		swap_cnt = 1;
-+		pb += es;
-+		pc -= es;
-+	}
-+	if (swap_cnt == 0) {  /* Switch to insertion sort */
-+		for (pm = (char *) a + es; pm < (char *) a + n * es; pm += es)
-+			for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0;
-+			     pl -= es)
-+				yswap(pl, pl - es);
-+		return;
-+	}
-+
-+	pn = (char *)a + n * es;
-+	r = min(pa - (char *)a, pb - pa);
-+	vecswap(a, pb - r, r);
-+	r = min((long)(pd - pc), (long)(pn - pd - es));
-+	vecswap(pb, pn - r, r);
-+	r = pb - pa;
-+	if (r > es)
-+		yaffs_qsort(a, r / es, es, cmp);
-+	r = pd - pc;
-+	if (r > es) {
-+		/* Iterate rather than recurse to save stack space */
-+		a = pn - r;
-+		n = r / es;
-+		goto loop;
-+	}
-+/*		yaffs_qsort(pn - r, r / es, es, cmp);*/
-+}
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_qsort.h linux-2.6.30/fs/yaffs2/yaffs_qsort.h
---- linux-2.6.30.orig/fs/yaffs2/yaffs_qsort.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_qsort.h	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,23 @@
-+/*
-+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU Lesser General Public License version 2.1 as
-+ * published by the Free Software Foundation.
-+ *
-+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
-+ */
-+
-+
-+#ifndef __YAFFS_QSORT_H__
-+#define __YAFFS_QSORT_H__
-+
-+extern void yaffs_qsort(void *const base, size_t total_elems, size_t size,
-+			int (*cmp)(const void *, const void *));
-+
-+#endif
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_tagscompat.c linux-2.6.30/fs/yaffs2/yaffs_tagscompat.c
---- linux-2.6.30.orig/fs/yaffs2/yaffs_tagscompat.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_tagscompat.c	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,541 @@
-+/*
-+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+#include "yaffs_guts.h"
-+#include "yaffs_tagscompat.h"
-+#include "yaffs_ecc.h"
-+#include "yaffs_getblockinfo.h"
-+
-+static void yaffs_HandleReadDataError(yaffs_Device *dev, int chunkInNAND);
-+#ifdef NOTYET
-+static void yaffs_CheckWrittenBlock(yaffs_Device *dev, int chunkInNAND);
-+static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND,
-+				     const __u8 *data,
-+				     const yaffs_Spare *spare);
-+static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND,
-+				    const yaffs_Spare *spare);
-+static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND);
-+#endif
-+
-+static const char yaffs_countBitsTable[256] = {
-+	0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4,
-+	1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
-+	1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
-+	2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-+	1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
-+	2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-+	2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-+	3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-+	1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
-+	2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-+	2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-+	3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-+	2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-+	3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-+	3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-+	4, 5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7, 8
-+};
-+
-+int yaffs_CountBits(__u8 x)
-+{
-+	int retVal;
-+	retVal = yaffs_countBitsTable[x];
-+	return retVal;
-+}
-+
-+/********** Tags ECC calculations  *********/
-+
-+void yaffs_CalcECC(const __u8 *data, yaffs_Spare *spare)
-+{
-+	yaffs_ECCCalculate(data, spare->ecc1);
-+	yaffs_ECCCalculate(&data[256], spare->ecc2);
-+}
-+
-+void yaffs_CalcTagsECC(yaffs_Tags *tags)
-+{
-+	/* Calculate an ecc */
-+
-+	unsigned char *b = ((yaffs_TagsUnion *) tags)->asBytes;
-+	unsigned i, j;
-+	unsigned ecc = 0;
-+	unsigned bit = 0;
-+
-+	tags->ecc = 0;
-+
-+	for (i = 0; i < 8; i++) {
-+		for (j = 1; j & 0xff; j <<= 1) {
-+			bit++;
-+			if (b[i] & j)
-+				ecc ^= bit;
-+		}
-+	}
-+
-+	tags->ecc = ecc;
-+
-+}
-+
-+int yaffs_CheckECCOnTags(yaffs_Tags *tags)
-+{
-+	unsigned ecc = tags->ecc;
-+
-+	yaffs_CalcTagsECC(tags);
-+
-+	ecc ^= tags->ecc;
-+
-+	if (ecc && ecc <= 64) {
-+		/* TODO: Handle the failure better. Retire? */
-+		unsigned char *b = ((yaffs_TagsUnion *) tags)->asBytes;
-+
-+		ecc--;
-+
-+		b[ecc / 8] ^= (1 << (ecc & 7));
-+
-+		/* Now recvalc the ecc */
-+		yaffs_CalcTagsECC(tags);
-+
-+		return 1;	/* recovered error */
-+	} else if (ecc) {
-+		/* Wierd ecc failure value */
-+		/* TODO Need to do somethiong here */
-+		return -1;	/* unrecovered error */
-+	}
-+
-+	return 0;
-+}
-+
-+/********** Tags **********/
-+
-+static void yaffs_LoadTagsIntoSpare(yaffs_Spare *sparePtr,
-+				yaffs_Tags *tagsPtr)
-+{
-+	yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr;
-+
-+	yaffs_CalcTagsECC(tagsPtr);
-+
-+	sparePtr->tagByte0 = tu->asBytes[0];
-+	sparePtr->tagByte1 = tu->asBytes[1];
-+	sparePtr->tagByte2 = tu->asBytes[2];
-+	sparePtr->tagByte3 = tu->asBytes[3];
-+	sparePtr->tagByte4 = tu->asBytes[4];
-+	sparePtr->tagByte5 = tu->asBytes[5];
-+	sparePtr->tagByte6 = tu->asBytes[6];
-+	sparePtr->tagByte7 = tu->asBytes[7];
-+}
-+
-+static void yaffs_GetTagsFromSpare(yaffs_Device *dev, yaffs_Spare *sparePtr,
-+				yaffs_Tags *tagsPtr)
-+{
-+	yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr;
-+	int result;
-+
-+	tu->asBytes[0] = sparePtr->tagByte0;
-+	tu->asBytes[1] = sparePtr->tagByte1;
-+	tu->asBytes[2] = sparePtr->tagByte2;
-+	tu->asBytes[3] = sparePtr->tagByte3;
-+	tu->asBytes[4] = sparePtr->tagByte4;
-+	tu->asBytes[5] = sparePtr->tagByte5;
-+	tu->asBytes[6] = sparePtr->tagByte6;
-+	tu->asBytes[7] = sparePtr->tagByte7;
-+
-+	result = yaffs_CheckECCOnTags(tagsPtr);
-+	if (result > 0)
-+		dev->tagsEccFixed++;
-+	else if (result < 0)
-+		dev->tagsEccUnfixed++;
-+}
-+
-+static void yaffs_SpareInitialise(yaffs_Spare *spare)
-+{
-+	memset(spare, 0xFF, sizeof(yaffs_Spare));
-+}
-+
-+static int yaffs_WriteChunkToNAND(struct yaffs_DeviceStruct *dev,
-+				int chunkInNAND, const __u8 *data,
-+				yaffs_Spare *spare)
-+{
-+	if (chunkInNAND < dev->startBlock * dev->nChunksPerBlock) {
-+		T(YAFFS_TRACE_ERROR,
-+		  (TSTR("**>> yaffs chunk %d is not valid" TENDSTR),
-+		   chunkInNAND));
-+		return YAFFS_FAIL;
-+	}
-+
-+	dev->nPageWrites++;
-+	return dev->writeChunkToNAND(dev, chunkInNAND, data, spare);
-+}
-+
-+static int yaffs_ReadChunkFromNAND(struct yaffs_DeviceStruct *dev,
-+				   int chunkInNAND,
-+				   __u8 *data,
-+				   yaffs_Spare *spare,
-+				   yaffs_ECCResult *eccResult,
-+				   int doErrorCorrection)
-+{
-+	int retVal;
-+	yaffs_Spare localSpare;
-+
-+	dev->nPageReads++;
-+
-+	if (!spare && data) {
-+		/* If we don't have a real spare, then we use a local one. */
-+		/* Need this for the calculation of the ecc */
-+		spare = &localSpare;
-+	}
-+
-+	if (!dev->useNANDECC) {
-+		retVal = dev->readChunkFromNAND(dev, chunkInNAND, data, spare);
-+		if (data && doErrorCorrection) {
-+			/* Do ECC correction */
-+			/* Todo handle any errors */
-+			int eccResult1, eccResult2;
-+			__u8 calcEcc[3];
-+
-+			yaffs_ECCCalculate(data, calcEcc);
-+			eccResult1 =
-+			    yaffs_ECCCorrect(data, spare->ecc1, calcEcc);
-+			yaffs_ECCCalculate(&data[256], calcEcc);
-+			eccResult2 =
-+			    yaffs_ECCCorrect(&data[256], spare->ecc2, calcEcc);
-+
-+			if (eccResult1 > 0) {
-+				T(YAFFS_TRACE_ERROR,
-+				  (TSTR
-+				   ("**>>yaffs ecc error fix performed on chunk %d:0"
-+				    TENDSTR), chunkInNAND));
-+				dev->eccFixed++;
-+			} else if (eccResult1 < 0) {
-+				T(YAFFS_TRACE_ERROR,
-+				  (TSTR
-+				   ("**>>yaffs ecc error unfixed on chunk %d:0"
-+				    TENDSTR), chunkInNAND));
-+				dev->eccUnfixed++;
-+			}
-+
-+			if (eccResult2 > 0) {
-+				T(YAFFS_TRACE_ERROR,
-+				  (TSTR
-+				   ("**>>yaffs ecc error fix performed on chunk %d:1"
-+				    TENDSTR), chunkInNAND));
-+				dev->eccFixed++;
-+			} else if (eccResult2 < 0) {
-+				T(YAFFS_TRACE_ERROR,
-+				  (TSTR
-+				   ("**>>yaffs ecc error unfixed on chunk %d:1"
-+				    TENDSTR), chunkInNAND));
-+				dev->eccUnfixed++;
-+			}
-+
-+			if (eccResult1 || eccResult2) {
-+				/* We had a data problem on this page */
-+				yaffs_HandleReadDataError(dev, chunkInNAND);
-+			}
-+
-+			if (eccResult1 < 0 || eccResult2 < 0)
-+				*eccResult = YAFFS_ECC_RESULT_UNFIXED;
-+			else if (eccResult1 > 0 || eccResult2 > 0)
-+				*eccResult = YAFFS_ECC_RESULT_FIXED;
-+			else
-+				*eccResult = YAFFS_ECC_RESULT_NO_ERROR;
-+		}
-+	} else {
-+		/* Must allocate enough memory for spare+2*sizeof(int) */
-+		/* for ecc results from device. */
-+		struct yaffs_NANDSpare nspare;
-+
-+		memset(&nspare, 0, sizeof(nspare));
-+
-+		retVal = dev->readChunkFromNAND(dev, chunkInNAND, data,
-+					(yaffs_Spare *) &nspare);
-+		memcpy(spare, &nspare, sizeof(yaffs_Spare));
-+		if (data && doErrorCorrection) {
-+			if (nspare.eccres1 > 0) {
-+				T(YAFFS_TRACE_ERROR,
-+				  (TSTR
-+				   ("**>>mtd ecc error fix performed on chunk %d:0"
-+				    TENDSTR), chunkInNAND));
-+			} else if (nspare.eccres1 < 0) {
-+				T(YAFFS_TRACE_ERROR,
-+				  (TSTR
-+				   ("**>>mtd ecc error unfixed on chunk %d:0"
-+				    TENDSTR), chunkInNAND));
-+			}
-+
-+			if (nspare.eccres2 > 0) {
-+				T(YAFFS_TRACE_ERROR,
-+				  (TSTR
-+				   ("**>>mtd ecc error fix performed on chunk %d:1"
-+				    TENDSTR), chunkInNAND));
-+			} else if (nspare.eccres2 < 0) {
-+				T(YAFFS_TRACE_ERROR,
-+				  (TSTR
-+				   ("**>>mtd ecc error unfixed on chunk %d:1"
-+				    TENDSTR), chunkInNAND));
-+			}
-+
-+			if (nspare.eccres1 || nspare.eccres2) {
-+				/* We had a data problem on this page */
-+				yaffs_HandleReadDataError(dev, chunkInNAND);
-+			}
-+
-+			if (nspare.eccres1 < 0 || nspare.eccres2 < 0)
-+				*eccResult = YAFFS_ECC_RESULT_UNFIXED;
-+			else if (nspare.eccres1 > 0 || nspare.eccres2 > 0)
-+				*eccResult = YAFFS_ECC_RESULT_FIXED;
-+			else
-+				*eccResult = YAFFS_ECC_RESULT_NO_ERROR;
-+
-+		}
-+	}
-+	return retVal;
-+}
-+
-+#ifdef NOTYET
-+static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev,
-+				  int chunkInNAND)
-+{
-+	static int init;
-+	static __u8 cmpbuf[YAFFS_BYTES_PER_CHUNK];
-+	static __u8 data[YAFFS_BYTES_PER_CHUNK];
-+	/* Might as well always allocate the larger size for */
-+	/* dev->useNANDECC == true; */
-+	static __u8 spare[sizeof(struct yaffs_NANDSpare)];
-+
-+	dev->readChunkFromNAND(dev, chunkInNAND, data, (yaffs_Spare *) spare);
-+
-+	if (!init) {
-+		memset(cmpbuf, 0xff, YAFFS_BYTES_PER_CHUNK);
-+		init = 1;
-+	}
-+
-+	if (memcmp(cmpbuf, data, YAFFS_BYTES_PER_CHUNK))
-+		return YAFFS_FAIL;
-+	if (memcmp(cmpbuf, spare, 16))
-+		return YAFFS_FAIL;
-+
-+	return YAFFS_OK;
-+
-+}
-+#endif
-+
-+/*
-+ * Functions for robustisizing
-+ */
-+
-+static void yaffs_HandleReadDataError(yaffs_Device *dev, int chunkInNAND)
-+{
-+	int blockInNAND = chunkInNAND / dev->nChunksPerBlock;
-+
-+	/* Mark the block for retirement */
-+	yaffs_GetBlockInfo(dev, blockInNAND + dev->blockOffset)->needsRetiring = 1;
-+	T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
-+	  (TSTR("**>>Block %d marked for retirement" TENDSTR), blockInNAND));
-+
-+	/* TODO:
-+	 * Just do a garbage collection on the affected block
-+	 * then retire the block
-+	 * NB recursion
-+	 */
-+}
-+
-+#ifdef NOTYET
-+static void yaffs_CheckWrittenBlock(yaffs_Device *dev, int chunkInNAND)
-+{
-+}
-+
-+static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND,
-+				     const __u8 *data,
-+				     const yaffs_Spare *spare)
-+{
-+}
-+
-+static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND,
-+				    const yaffs_Spare *spare)
-+{
-+}
-+
-+static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND)
-+{
-+	int blockInNAND = chunkInNAND / dev->nChunksPerBlock;
-+
-+	/* Mark the block for retirement */
-+	yaffs_GetBlockInfo(dev, blockInNAND)->needsRetiring = 1;
-+	/* Delete the chunk */
-+	yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__);
-+}
-+
-+static int yaffs_VerifyCompare(const __u8 *d0, const __u8 *d1,
-+			       const yaffs_Spare *s0, const yaffs_Spare *s1)
-+{
-+
-+	if (memcmp(d0, d1, YAFFS_BYTES_PER_CHUNK) != 0 ||
-+	    s0->tagByte0 != s1->tagByte0 ||
-+	    s0->tagByte1 != s1->tagByte1 ||
-+	    s0->tagByte2 != s1->tagByte2 ||
-+	    s0->tagByte3 != s1->tagByte3 ||
-+	    s0->tagByte4 != s1->tagByte4 ||
-+	    s0->tagByte5 != s1->tagByte5 ||
-+	    s0->tagByte6 != s1->tagByte6 ||
-+	    s0->tagByte7 != s1->tagByte7 ||
-+	    s0->ecc1[0] != s1->ecc1[0] ||
-+	    s0->ecc1[1] != s1->ecc1[1] ||
-+	    s0->ecc1[2] != s1->ecc1[2] ||
-+	    s0->ecc2[0] != s1->ecc2[0] ||
-+	    s0->ecc2[1] != s1->ecc2[1] || s0->ecc2[2] != s1->ecc2[2]) {
-+		return 0;
-+	}
-+
-+	return 1;
-+}
-+#endif				/* NOTYET */
-+
-+int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device *dev,
-+						int chunkInNAND,
-+						const __u8 *data,
-+						const yaffs_ExtendedTags *eTags)
-+{
-+	yaffs_Spare spare;
-+	yaffs_Tags tags;
-+
-+	yaffs_SpareInitialise(&spare);
-+
-+	if (eTags->chunkDeleted)
-+		spare.pageStatus = 0;
-+	else {
-+		tags.objectId = eTags->objectId;
-+		tags.chunkId = eTags->chunkId;
-+
-+		tags.byteCountLSB = eTags->byteCount & 0x3ff;
-+
-+		if (dev->nDataBytesPerChunk >= 1024)
-+			tags.byteCountMSB = (eTags->byteCount >> 10) & 3;
-+		else
-+			tags.byteCountMSB = 3;
-+
-+
-+		tags.serialNumber = eTags->serialNumber;
-+
-+		if (!dev->useNANDECC && data)
-+			yaffs_CalcECC(data, &spare);
-+
-+		yaffs_LoadTagsIntoSpare(&spare, &tags);
-+
-+	}
-+
-+	return yaffs_WriteChunkToNAND(dev, chunkInNAND, data, &spare);
-+}
-+
-+int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device *dev,
-+						     int chunkInNAND,
-+						     __u8 *data,
-+						     yaffs_ExtendedTags *eTags)
-+{
-+
-+	yaffs_Spare spare;
-+	yaffs_Tags tags;
-+	yaffs_ECCResult eccResult = YAFFS_ECC_RESULT_UNKNOWN;
-+
-+	static yaffs_Spare spareFF;
-+	static int init;
-+
-+	if (!init) {
-+		memset(&spareFF, 0xFF, sizeof(spareFF));
-+		init = 1;
-+	}
-+
-+	if (yaffs_ReadChunkFromNAND
-+	    (dev, chunkInNAND, data, &spare, &eccResult, 1)) {
-+		/* eTags may be NULL */
-+		if (eTags) {
-+
-+			int deleted =
-+			    (yaffs_CountBits(spare.pageStatus) < 7) ? 1 : 0;
-+
-+			eTags->chunkDeleted = deleted;
-+			eTags->eccResult = eccResult;
-+			eTags->blockBad = 0;	/* We're reading it */
-+			/* therefore it is not a bad block */
-+			eTags->chunkUsed =
-+			    (memcmp(&spareFF, &spare, sizeof(spareFF)) !=
-+			     0) ? 1 : 0;
-+
-+			if (eTags->chunkUsed) {
-+				yaffs_GetTagsFromSpare(dev, &spare, &tags);
-+
-+				eTags->objectId = tags.objectId;
-+				eTags->chunkId = tags.chunkId;
-+				eTags->byteCount = tags.byteCountLSB;
-+
-+				if (dev->nDataBytesPerChunk >= 1024)
-+					eTags->byteCount |= (((unsigned) tags.byteCountMSB) << 10);
-+
-+				eTags->serialNumber = tags.serialNumber;
-+			}
-+		}
-+
-+		return YAFFS_OK;
-+	} else {
-+		return YAFFS_FAIL;
-+	}
-+}
-+
-+int yaffs_TagsCompatabilityMarkNANDBlockBad(struct yaffs_DeviceStruct *dev,
-+					    int blockInNAND)
-+{
-+
-+	yaffs_Spare spare;
-+
-+	memset(&spare, 0xff, sizeof(yaffs_Spare));
-+
-+	spare.blockStatus = 'Y';
-+
-+	yaffs_WriteChunkToNAND(dev, blockInNAND * dev->nChunksPerBlock, NULL,
-+			       &spare);
-+	yaffs_WriteChunkToNAND(dev, blockInNAND * dev->nChunksPerBlock + 1,
-+			       NULL, &spare);
-+
-+	return YAFFS_OK;
-+
-+}
-+
-+int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev,
-+					  int blockNo,
-+					  yaffs_BlockState *state,
-+					  __u32 *sequenceNumber)
-+{
-+
-+	yaffs_Spare spare0, spare1;
-+	static yaffs_Spare spareFF;
-+	static int init;
-+	yaffs_ECCResult dummy;
-+
-+	if (!init) {
-+		memset(&spareFF, 0xFF, sizeof(spareFF));
-+		init = 1;
-+	}
-+
-+	*sequenceNumber = 0;
-+
-+	yaffs_ReadChunkFromNAND(dev, blockNo * dev->nChunksPerBlock, NULL,
-+				&spare0, &dummy, 1);
-+	yaffs_ReadChunkFromNAND(dev, blockNo * dev->nChunksPerBlock + 1, NULL,
-+				&spare1, &dummy, 1);
-+
-+	if (yaffs_CountBits(spare0.blockStatus & spare1.blockStatus) < 7)
-+		*state = YAFFS_BLOCK_STATE_DEAD;
-+	else if (memcmp(&spareFF, &spare0, sizeof(spareFF)) == 0)
-+		*state = YAFFS_BLOCK_STATE_EMPTY;
-+	else
-+		*state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
-+
-+	return YAFFS_OK;
-+}
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_tagscompat.h linux-2.6.30/fs/yaffs2/yaffs_tagscompat.h
---- linux-2.6.30.orig/fs/yaffs2/yaffs_tagscompat.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_tagscompat.h	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,39 @@
-+/*
-+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU Lesser General Public License version 2.1 as
-+ * published by the Free Software Foundation.
-+ *
-+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
-+ */
-+
-+#ifndef __YAFFS_TAGSCOMPAT_H__
-+#define __YAFFS_TAGSCOMPAT_H__
-+
-+#include "yaffs_guts.h"
-+int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device *dev,
-+						int chunkInNAND,
-+						const __u8 *data,
-+						const yaffs_ExtendedTags *tags);
-+int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device *dev,
-+						int chunkInNAND,
-+						__u8 *data,
-+						yaffs_ExtendedTags *tags);
-+int yaffs_TagsCompatabilityMarkNANDBlockBad(struct yaffs_DeviceStruct *dev,
-+					    int blockNo);
-+int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev,
-+					  int blockNo,
-+					  yaffs_BlockState *state,
-+					  __u32 *sequenceNumber);
-+
-+void yaffs_CalcTagsECC(yaffs_Tags *tags);
-+int yaffs_CheckECCOnTags(yaffs_Tags *tags);
-+int yaffs_CountBits(__u8 byte);
-+
-+#endif
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_tagsvalidity.c linux-2.6.30/fs/yaffs2/yaffs_tagsvalidity.c
---- linux-2.6.30.orig/fs/yaffs2/yaffs_tagsvalidity.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_tagsvalidity.c	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,28 @@
-+/*
-+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+#include "yaffs_tagsvalidity.h"
-+
-+void yaffs_InitialiseTags(yaffs_ExtendedTags *tags)
-+{
-+	memset(tags, 0, sizeof(yaffs_ExtendedTags));
-+	tags->validMarker0 = 0xAAAAAAAA;
-+	tags->validMarker1 = 0x55555555;
-+}
-+
-+int yaffs_ValidateTags(yaffs_ExtendedTags *tags)
-+{
-+	return (tags->validMarker0 == 0xAAAAAAAA &&
-+		tags->validMarker1 == 0x55555555);
-+
-+}
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yaffs_tagsvalidity.h linux-2.6.30/fs/yaffs2/yaffs_tagsvalidity.h
---- linux-2.6.30.orig/fs/yaffs2/yaffs_tagsvalidity.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yaffs_tagsvalidity.h	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,24 @@
-+/*
-+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU Lesser General Public License version 2.1 as
-+ * published by the Free Software Foundation.
-+ *
-+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
-+ */
-+
-+
-+#ifndef __YAFFS_TAGS_VALIDITY_H__
-+#define __YAFFS_TAGS_VALIDITY_H__
-+
-+#include "yaffs_guts.h"
-+
-+void yaffs_InitialiseTags(yaffs_ExtendedTags *tags);
-+int yaffs_ValidateTags(yaffs_ExtendedTags *tags);
-+#endif
-diff -Nur linux-2.6.30.orig/fs/yaffs2/yportenv.h linux-2.6.30/fs/yaffs2/yportenv.h
---- linux-2.6.30.orig/fs/yaffs2/yportenv.h	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.30/fs/yaffs2/yportenv.h	2009-06-11 09:21:04.000000000 +0200
-@@ -0,0 +1,203 @@
-+/*
-+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2007 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <charles@aleph1.co.uk>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU Lesser General Public License version 2.1 as
-+ * published by the Free Software Foundation.
-+ *
-+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
-+ */
-+
-+
-+#ifndef __YPORTENV_H__
-+#define __YPORTENV_H__
-+
-+/*
-+ * Define the MTD version in terms of Linux Kernel versions
-+ * This allows yaffs to be used independantly of the kernel
-+ * as well as with it.
-+ */
-+
-+#define MTD_VERSION(a, b, c) (((a) << 16) + ((b) << 8) + (c))
-+
-+#if defined CONFIG_YAFFS_WINCE
-+
-+#include "ywinceenv.h"
-+
-+#elif defined __KERNEL__
-+
-+#include "moduleconfig.h"
-+
-+/* Linux kernel */
-+
-+#include <linux/version.h>
-+#define MTD_VERSION_CODE LINUX_VERSION_CODE
-+
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
-+#include <linux/config.h>
-+#endif
-+#include <linux/kernel.h>
-+#include <linux/mm.h>
-+#include <linux/sched.h>
-+#include <linux/string.h>
-+#include <linux/slab.h>
-+#include <linux/vmalloc.h>
-+
-+#define YCHAR char
-+#define YUCHAR unsigned char
-+#define _Y(x)     x
-+#define yaffs_strcat(a, b)     strcat(a, b)
-+#define yaffs_strcpy(a, b)     strcpy(a, b)
-+#define yaffs_strncpy(a, b, c) strncpy(a, b, c)
-+#define yaffs_strncmp(a, b, c) strncmp(a, b, c)
-+#define yaffs_strlen(s)	       strlen(s)
-+#define yaffs_sprintf	       sprintf
-+#define yaffs_toupper(a)       toupper(a)
-+
-+#define Y_INLINE inline
-+
-+#define YAFFS_LOSTNFOUND_NAME		"lost+found"
-+#define YAFFS_LOSTNFOUND_PREFIX		"obj"
-+
-+/* #define YPRINTF(x) printk x */
-+#define YMALLOC(x) kmalloc(x, GFP_NOFS)
-+#define YFREE(x)   kfree(x)
-+#define YMALLOC_ALT(x) vmalloc(x)
-+#define YFREE_ALT(x)   vfree(x)
-+#define YMALLOC_DMA(x) YMALLOC(x)
-+
-+/* KR - added for use in scan so processes aren't blocked indefinitely. */
-+#define YYIELD() schedule()
-+
-+#define YAFFS_ROOT_MODE			0666
-+#define YAFFS_LOSTNFOUND_MODE		0666
-+
-+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
-+#define Y_CURRENT_TIME CURRENT_TIME.tv_sec
-+#define Y_TIME_CONVERT(x) (x).tv_sec
-+#else
-+#define Y_CURRENT_TIME CURRENT_TIME
-+#define Y_TIME_CONVERT(x) (x)
-+#endif
-+
-+#define yaffs_SumCompare(x, y) ((x) == (y))
-+#define yaffs_strcmp(a, b) strcmp(a, b)
-+
-+#define TENDSTR "\n"
-+#define TSTR(x) KERN_WARNING x
-+#define TCONT(x) x
-+#define TOUT(p) printk p
-+
-+#define yaffs_trace(mask, fmt, args...) \
-+	do { if ((mask) & (yaffs_traceMask|YAFFS_TRACE_ERROR)) \
-+		printk(KERN_WARNING "yaffs: " fmt, ## args); \
-+	} while (0)
-+
-+#define compile_time_assertion(assertion) \
-+	({ int x = __builtin_choose_expr(assertion, 0, (void)0); (void) x; })
-+
-+#elif defined CONFIG_YAFFS_DIRECT
-+
-+#define MTD_VERSION_CODE MTD_VERSION(2, 6, 22)
-+
-+/* Direct interface */
-+#include "ydirectenv.h"
-+
-+#elif defined CONFIG_YAFFS_UTIL
-+
-+/* Stuff for YAFFS utilities */
-+
-+#include "stdlib.h"
-+#include "stdio.h"
-+#include "string.h"
-+
-+#include "devextras.h"
-+
-+#define YMALLOC(x) malloc(x)
-+#define YFREE(x)   free(x)
-+#define YMALLOC_ALT(x) malloc(x)
-+#define YFREE_ALT(x) free(x)
-+
-+#define YCHAR char
-+#define YUCHAR unsigned char
-+#define _Y(x)     x
-+#define yaffs_strcat(a, b)     strcat(a, b)
-+#define yaffs_strcpy(a, b)     strcpy(a, b)
-+#define yaffs_strncpy(a, b, c) strncpy(a, b, c)
-+#define yaffs_strlen(s)	       strlen(s)
-+#define yaffs_sprintf	       sprintf
-+#define yaffs_toupper(a)       toupper(a)
-+
-+#define Y_INLINE inline
-+
-+/* #define YINFO(s) YPRINTF(( __FILE__ " %d %s\n",__LINE__,s)) */
-+/* #define YALERT(s) YINFO(s) */
-+
-+#define TENDSTR "\n"
-+#define TSTR(x) x
-+#define TOUT(p) printf p
-+
-+#define YAFFS_LOSTNFOUND_NAME		"lost+found"
-+#define YAFFS_LOSTNFOUND_PREFIX		"obj"
-+/* #define YPRINTF(x) printf x */
-+
-+#define YAFFS_ROOT_MODE				0666
-+#define YAFFS_LOSTNFOUND_MODE		0666
-+
-+#define yaffs_SumCompare(x, y) ((x) == (y))
-+#define yaffs_strcmp(a, b) strcmp(a, b)
-+
-+#else
-+/* Should have specified a configuration type */
-+#error Unknown configuration
-+
-+#endif
-+
-+/* see yaffs_fs.c */
-+extern unsigned int yaffs_traceMask;
-+extern unsigned int yaffs_wr_attempts;
-+
-+/*
-+ * Tracing flags.
-+ * The flags masked in YAFFS_TRACE_ALWAYS are always traced.
-+ */
-+
-+#define YAFFS_TRACE_OS			0x00000002
-+#define YAFFS_TRACE_ALLOCATE		0x00000004
-+#define YAFFS_TRACE_SCAN		0x00000008
-+#define YAFFS_TRACE_BAD_BLOCKS		0x00000010
-+#define YAFFS_TRACE_ERASE		0x00000020
-+#define YAFFS_TRACE_GC			0x00000040
-+#define YAFFS_TRACE_WRITE		0x00000080
-+#define YAFFS_TRACE_TRACING		0x00000100
-+#define YAFFS_TRACE_DELETION		0x00000200
-+#define YAFFS_TRACE_BUFFERS		0x00000400
-+#define YAFFS_TRACE_NANDACCESS		0x00000800
-+#define YAFFS_TRACE_GC_DETAIL		0x00001000
-+#define YAFFS_TRACE_SCAN_DEBUG		0x00002000
-+#define YAFFS_TRACE_MTD			0x00004000
-+#define YAFFS_TRACE_CHECKPOINT		0x00008000
-+
-+#define YAFFS_TRACE_VERIFY		0x00010000
-+#define YAFFS_TRACE_VERIFY_NAND		0x00020000
-+#define YAFFS_TRACE_VERIFY_FULL		0x00040000
-+#define YAFFS_TRACE_VERIFY_ALL		0x000F0000
-+
-+
-+#define YAFFS_TRACE_ERROR		0x40000000
-+#define YAFFS_TRACE_BUG			0x80000000
-+#define YAFFS_TRACE_ALWAYS		0xF0000000
-+
-+
-+#define T(mask, p) do { if ((mask) & (yaffs_traceMask | YAFFS_TRACE_ALWAYS)) TOUT(p); } while (0)
-+
-+#ifndef YBUG
-+#define YBUG() do {T(YAFFS_TRACE_BUG, (TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR), __LINE__)); } while (0)
-+#endif
-+
-+#endif