add aufs2 kernel patches, update aufs2-util to match

1 files changed, 240 insertions, 0 deletions

diff --git a/toolchain/kernel-headers/patches/2.6.36/aufs2.patch b/toolchain/kernel-headers/patches/2.6.36/aufs2.patch
new file mode 100644
index 000000000..eafbe6814
--- /dev/null
+++ b/toolchain/kernel-headers/patches/2.6.36/aufs2.patch
@@ -0,0 +1,240 @@
+diff -Nur linux-2.6.36.orig/include/linux/Kbuild linux-2.6.36/include/linux/Kbuild
+--- linux-2.6.36.orig/include/linux/Kbuild	2010-10-20 22:30:22.000000000 +0200
++++ linux-2.6.36/include/linux/Kbuild	2011-01-10 19:52:38.000000000 +0100
+@@ -60,6 +60,7 @@
+ header-y += atmsap.h
+ header-y += atmsvc.h
+ header-y += audit.h
++header-y += aufs_type.h
+ header-y += auto_fs.h
+ header-y += auto_fs4.h
+ header-y += auxvec.h
+diff -Nur linux-2.6.36.orig/include/linux/aufs_type.h linux-2.6.36/include/linux/aufs_type.h
+--- linux-2.6.36.orig/include/linux/aufs_type.h	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.36/include/linux/aufs_type.h	2011-01-10 19:54:22.000000000 +0100
+@@ -0,0 +1,197 @@
++/*
++ * Copyright (C) 2005-2011 Junjiro R. Okajima
++ *
++ * This program, aufs is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
++ */
++
++#ifndef __AUFS_TYPE_H__
++#define __AUFS_TYPE_H__
++
++#include <linux/ioctl.h>
++#include <linux/kernel.h>
++#include <linux/limits.h>
++#include <linux/types.h>
++
++#define AUFS_VERSION	"2.1-standalone.tree-36-20110110"
++
++/* todo? move this to linux-2.6.19/include/magic.h */
++#define AUFS_SUPER_MAGIC	('a' << 24 | 'u' << 16 | 'f' << 8 | 's')
++
++/* ---------------------------------------------------------------------- */
++
++#ifdef CONFIG_AUFS_BRANCH_MAX_127
++typedef __s8 aufs_bindex_t;
++#define AUFS_BRANCH_MAX 127
++#else
++typedef __s16 aufs_bindex_t;
++#ifdef CONFIG_AUFS_BRANCH_MAX_511
++#define AUFS_BRANCH_MAX 511
++#elif defined(CONFIG_AUFS_BRANCH_MAX_1023)
++#define AUFS_BRANCH_MAX 1023
++#elif defined(CONFIG_AUFS_BRANCH_MAX_32767)
++#define AUFS_BRANCH_MAX 32767
++#endif
++#endif
++
++#ifdef __KERNEL__
++#ifndef AUFS_BRANCH_MAX
++#error unknown CONFIG_AUFS_BRANCH_MAX value
++#endif
++#endif /* __KERNEL__ */
++
++/* ---------------------------------------------------------------------- */
++
++#define AUFS_NAME		"aufs"
++#define AUFS_FSTYPE		AUFS_NAME
++
++#define AUFS_ROOT_INO		2
++#define AUFS_FIRST_INO		11
++
++#define AUFS_WH_PFX		".wh."
++#define AUFS_WH_PFX_LEN		((int)sizeof(AUFS_WH_PFX) - 1)
++#define AUFS_WH_TMP_LEN		4
++/* a limit for rmdir/rename a dir */
++#define AUFS_MAX_NAMELEN	(NAME_MAX \
++				- AUFS_WH_PFX_LEN * 2	/* doubly whiteouted */\
++				- 1			/* dot */\
++				- AUFS_WH_TMP_LEN)	/* hex */
++#define AUFS_XINO_FNAME		"." AUFS_NAME ".xino"
++#define AUFS_XINO_DEFPATH	"/tmp/" AUFS_XINO_FNAME
++#define AUFS_XINO_TRUNC_INIT	64 /* blocks */
++#define AUFS_XINO_TRUNC_STEP	4  /* blocks */
++#define AUFS_DIRWH_DEF		3
++#define AUFS_RDCACHE_DEF	10 /* seconds */
++#define AUFS_RDCACHE_MAX	3600 /* seconds */
++#define AUFS_RDBLK_DEF		512 /* bytes */
++#define AUFS_RDHASH_DEF		32
++#define AUFS_WKQ_NAME		AUFS_NAME "d"
++#define AUFS_WKQ_PRE_NAME	AUFS_WKQ_NAME "_pre"
++#define AUFS_MFS_DEF_SEC	30 /* seconds */
++#define AUFS_MFS_MAX_SEC	3600 /* seconds */
++#define AUFS_PLINK_WARN		100 /* number of plinks */
++
++/* pseudo-link maintenace under /proc */
++#define AUFS_PLINK_MAINT_NAME	"plink_maint"
++#define AUFS_PLINK_MAINT_DIR	"fs/" AUFS_NAME
++#define AUFS_PLINK_MAINT_PATH	AUFS_PLINK_MAINT_DIR "/" AUFS_PLINK_MAINT_NAME
++
++#define AUFS_DIROPQ_NAME	AUFS_WH_PFX ".opq" /* whiteouted doubly */
++#define AUFS_WH_DIROPQ		AUFS_WH_PFX AUFS_DIROPQ_NAME
++
++#define AUFS_BASE_NAME		AUFS_WH_PFX AUFS_NAME
++#define AUFS_PLINKDIR_NAME	AUFS_WH_PFX "plnk"
++#define AUFS_ORPHDIR_NAME	AUFS_WH_PFX "orph"
++
++/* doubly whiteouted */
++#define AUFS_WH_BASE		AUFS_WH_PFX AUFS_BASE_NAME
++#define AUFS_WH_PLINKDIR	AUFS_WH_PFX AUFS_PLINKDIR_NAME
++#define AUFS_WH_ORPHDIR		AUFS_WH_PFX AUFS_ORPHDIR_NAME
++
++/* branch permission */
++#define AUFS_BRPERM_RW		"rw"
++#define AUFS_BRPERM_RO		"ro"
++#define AUFS_BRPERM_RR		"rr"
++#define AUFS_BRPERM_WH		"wh"
++#define AUFS_BRPERM_NLWH	"nolwh"
++#define AUFS_BRPERM_ROWH	AUFS_BRPERM_RO "+" AUFS_BRPERM_WH
++#define AUFS_BRPERM_RRWH	AUFS_BRPERM_RR "+" AUFS_BRPERM_WH
++#define AUFS_BRPERM_RWNLWH	AUFS_BRPERM_RW "+" AUFS_BRPERM_NLWH
++
++/* ---------------------------------------------------------------------- */
++
++/* ioctl */
++enum {
++	/* readdir in userspace */
++	AuCtl_RDU,
++	AuCtl_RDU_INO,
++
++	/* pathconf wrapper */
++	AuCtl_WBR_FD
++};
++
++/* borrowed from linux/include/linux/kernel.h */
++#ifndef ALIGN
++#define ALIGN(x, a)		__ALIGN_MASK(x, (typeof(x))(a)-1)
++#define __ALIGN_MASK(x, mask)	(((x)+(mask))&~(mask))
++#endif
++
++/* borrowed from linux/include/linux/compiler-gcc3.h */
++#ifndef __aligned
++#define __aligned(x)			__attribute__((aligned(x)))
++#define __packed			__attribute__((packed))
++#endif
++
++struct au_rdu_cookie {
++	__u64		h_pos;
++	__s16		bindex;
++	__u8		flags;
++	__u8		pad;
++	__u32		generation;
++} __aligned(8);
++
++struct au_rdu_ent {
++	__u64		ino;
++	__s16		bindex;
++	__u8		type;
++	__u8		nlen;
++	__u8		wh;
++	char		name[0];
++} __aligned(8);
++
++static inline int au_rdu_len(int nlen)
++{
++	/* include the terminating NULL */
++	return ALIGN(sizeof(struct au_rdu_ent) + nlen + 1,
++		     sizeof(__u64));
++}
++
++union au_rdu_ent_ul {
++	struct au_rdu_ent __user	*e;
++	__u64				ul;
++};
++
++enum {
++	AufsCtlRduV_SZ,
++	AufsCtlRduV_End
++};
++
++struct aufs_rdu {
++	/* input */
++	union {
++		__u64		sz;	/* AuCtl_RDU */
++		__u64		nent;	/* AuCtl_RDU_INO */
++	};
++	union au_rdu_ent_ul	ent;
++	__u16			verify[AufsCtlRduV_End];
++
++	/* input/output */
++	__u32			blk;
++
++	/* output */
++	union au_rdu_ent_ul	tail;
++	/* number of entries which were added in a single call */
++	__u64			rent;
++	__u8			full;
++	__u8			shwh;
++
++	struct au_rdu_cookie	cookie;
++} __aligned(8);
++
++#define AuCtlType		'A'
++#define AUFS_CTL_RDU		_IOWR(AuCtlType, AuCtl_RDU, struct aufs_rdu)
++#define AUFS_CTL_RDU_INO	_IOWR(AuCtlType, AuCtl_RDU_INO, struct aufs_rdu)
++#define AUFS_CTL_WBR_FD		_IO(AuCtlType, AuCtl_WBR_FD)
++
++#endif /* __AUFS_TYPE_H__ */
+diff -Nur linux-2.6.36.orig/include/linux/namei.h linux-2.6.36/include/linux/namei.h
+--- linux-2.6.36.orig/include/linux/namei.h	2010-10-20 22:30:22.000000000 +0200
++++ linux-2.6.36/include/linux/namei.h	2011-01-10 19:52:38.000000000 +0100
+@@ -73,6 +73,9 @@
+ extern struct file *lookup_instantiate_filp(struct nameidata *nd, struct dentry *dentry,
+ 		int (*open)(struct inode *, struct file *));
+ 
++extern struct dentry *lookup_hash(struct nameidata *nd);
++extern int __lookup_one_len(const char *name, struct qstr *this,
++			    struct dentry *base, int len);
+ extern struct dentry *lookup_one_len(const char *, struct dentry *, int);
+ 
+ extern int follow_down(struct path *);
+diff -Nur linux-2.6.36.orig/include/linux/splice.h linux-2.6.36/include/linux/splice.h
+--- linux-2.6.36.orig/include/linux/splice.h	2010-10-20 22:30:22.000000000 +0200
++++ linux-2.6.36/include/linux/splice.h	2011-01-10 19:52:38.000000000 +0100
+@@ -89,4 +89,10 @@
+ extern void splice_shrink_spd(struct pipe_inode_info *,
+ 				struct splice_pipe_desc *);
+ 
++extern long do_splice_from(struct pipe_inode_info *pipe, struct file *out,
++			   loff_t *ppos, size_t len, unsigned int flags);
++extern long do_splice_to(struct file *in, loff_t *ppos,
++			 struct pipe_inode_info *pipe, size_t len,
++			 unsigned int flags);
++
+ #endif
+