diff options
Diffstat (limited to 'target/linux/patches/3.12.33/patch-dietnet')
| -rw-r--r-- | target/linux/patches/3.12.33/patch-dietnet | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/target/linux/patches/3.12.33/patch-dietnet b/target/linux/patches/3.12.33/patch-dietnet new file mode 100644 index 000000000..c1ff7209c --- /dev/null +++ b/target/linux/patches/3.12.33/patch-dietnet @@ -0,0 +1,254 @@ +https://lkml.org/lkml/2014/5/5/674 +Andi Kleen <ak@linux.intel.com> + +diff -Nur linux-3.12.20.orig/include/linux/tcp.h linux-3.12.20/include/linux/tcp.h +--- linux-3.12.20.orig/include/linux/tcp.h 2014-05-15 09:56:19.000000000 +0200 ++++ linux-3.12.20/include/linux/tcp.h 2014-05-30 14:41:11.000000000 +0200 +@@ -356,6 +356,9 @@ + return (struct tcp_timewait_sock *)sk; + } + ++extern void tcp_sock_destruct(struct sock *sk); ++ ++#ifdef CONFIG_TCP_FASTOPEN + static inline bool tcp_passive_fastopen(const struct sock *sk) + { + return (sk->sk_state == TCP_SYN_RECV && +@@ -367,8 +370,6 @@ + return foc->len != -1; + } + +-extern void tcp_sock_destruct(struct sock *sk); +- + static inline int fastopen_init_queue(struct sock *sk, int backlog) + { + struct request_sock_queue *queue = +@@ -388,4 +389,13 @@ + return 0; + } + ++#else ++static inline bool tcp_passive_fastopen(const struct sock *sk) ++{ return false; } ++static inline bool fastopen_cookie_present(struct tcp_fastopen_cookie *foc) ++{ return false; } ++static inline int fastopen_init_queue(struct sock *sk, int backlog) ++{ return 0; } ++#endif ++ + #endif /* _LINUX_TCP_H */ +diff -Nur linux-3.12.20.orig/include/net/request_sock.h linux-3.12.20/include/net/request_sock.h +--- linux-3.12.20.orig/include/net/request_sock.h 2014-05-15 09:56:19.000000000 +0200 ++++ linux-3.12.20/include/net/request_sock.h 2014-05-30 14:42:55.000000000 +0200 +@@ -167,8 +167,14 @@ + + extern void __reqsk_queue_destroy(struct request_sock_queue *queue); + extern void reqsk_queue_destroy(struct request_sock_queue *queue); ++#ifdef CONFIG_TCP_FASTOPEN + extern void reqsk_fastopen_remove(struct sock *sk, + struct request_sock *req, bool reset); ++#else ++static inline void reqsk_fastopen_remove(struct sock *sk, struct request_sock *req, ++ bool reset) {} ++#endif ++ + + static inline struct request_sock * + reqsk_queue_yank_acceptq(struct request_sock_queue *queue) +diff -Nur linux-3.12.20.orig/include/net/tcp.h linux-3.12.20/include/net/tcp.h +--- linux-3.12.20.orig/include/net/tcp.h 2014-05-15 09:56:19.000000000 +0200 ++++ linux-3.12.20/include/net/tcp.h 2014-05-30 14:41:11.000000000 +0200 +@@ -250,7 +250,11 @@ + extern int sysctl_tcp_retries2; + extern int sysctl_tcp_orphan_retries; + extern int sysctl_tcp_syncookies; ++#ifdef CONFIG_TCP_FASTOPEN + extern int sysctl_tcp_fastopen; ++#else ++#define sysctl_tcp_fastopen 0 ++#endif + extern int sysctl_tcp_retrans_collapse; + extern int sysctl_tcp_stdurg; + extern int sysctl_tcp_rfc1337; +@@ -1325,7 +1329,12 @@ + size_t size; + int copied; /* queued in tcp_connect() */ + }; ++ ++#ifdef CONFIG_TCP_FASTOPEN + void tcp_free_fastopen_req(struct tcp_sock *tp); ++#else ++static inline void tcp_free_fastopen_req(struct tcp_sock *tp) {} ++#endif + + extern struct tcp_fastopen_context __rcu *tcp_fastopen_ctx; + int tcp_fastopen_reset_cipher(void *key, unsigned int len); +diff -Nur linux-3.12.20.orig/net/Kconfig linux-3.12.20/net/Kconfig +--- linux-3.12.20.orig/net/Kconfig 2014-05-15 09:56:19.000000000 +0200 ++++ linux-3.12.20/net/Kconfig 2014-05-30 14:41:11.000000000 +0200 +@@ -53,8 +53,8 @@ + + config INET + bool "TCP/IP networking" +- select CRYPTO +- select CRYPTO_AES ++ select CRYPTO if TCP_FASTOPEN ++ select CRYPTO_AES if TCP_FASTOPEN + ---help--- + These are the protocols used on the Internet and on most local + Ethernets. It is highly recommended to say Y here (this will enlarge +diff -Nur linux-3.12.20.orig/net/core/request_sock.c linux-3.12.20/net/core/request_sock.c +--- linux-3.12.20.orig/net/core/request_sock.c 2014-05-15 09:56:19.000000000 +0200 ++++ linux-3.12.20/net/core/request_sock.c 2014-05-30 14:41:11.000000000 +0200 +@@ -131,6 +131,7 @@ + kfree(lopt); + } + ++#ifdef CONFIG_TCP_FASTOPEN + /* + * This function is called to set a Fast Open socket's "fastopen_rsk" field + * to NULL when a TFO socket no longer needs to access the request_sock. +@@ -223,3 +224,4 @@ + sock_put(lsk); + return; + } ++#endif +diff -Nur linux-3.12.20.orig/net/ipv4/Kconfig linux-3.12.20/net/ipv4/Kconfig +--- linux-3.12.20.orig/net/ipv4/Kconfig 2014-05-15 09:56:19.000000000 +0200 ++++ linux-3.12.20/net/ipv4/Kconfig 2014-05-30 14:41:11.000000000 +0200 +@@ -307,6 +307,10 @@ + the notion of a secure tunnel for IPSEC and then use routing protocol + on top. + ++config TCP_FASTOPEN ++ bool "Enable TCP fastopen" ++ default n ++ + config INET_AH + tristate "IP: AH transformation" + select XFRM_ALGO +diff -Nur linux-3.12.20.orig/net/ipv4/Makefile linux-3.12.20/net/ipv4/Makefile +--- linux-3.12.20.orig/net/ipv4/Makefile 2014-05-15 09:56:19.000000000 +0200 ++++ linux-3.12.20/net/ipv4/Makefile 2014-05-30 14:41:11.000000000 +0200 +@@ -7,7 +7,7 @@ + ip_output.o ip_sockglue.o inet_hashtables.o \ + inet_timewait_sock.o inet_connection_sock.o \ + tcp.o tcp_input.o tcp_output.o tcp_timer.o tcp_ipv4.o \ +- tcp_minisocks.o tcp_cong.o tcp_metrics.o tcp_fastopen.o \ ++ tcp_minisocks.o tcp_cong.o tcp_metrics.o \ + tcp_offload.o datagram.o raw.o udp.o udplite.o \ + udp_offload.o arp.o icmp.o devinet.o af_inet.o igmp.o \ + fib_frontend.o fib_semantics.o fib_trie.o \ +@@ -51,6 +51,7 @@ + obj-$(CONFIG_TCP_CONG_LP) += tcp_lp.o + obj-$(CONFIG_TCP_CONG_YEAH) += tcp_yeah.o + obj-$(CONFIG_TCP_CONG_ILLINOIS) += tcp_illinois.o ++obj-$(CONFIG_TCP_FASTOPEN) += tcp_fastopen.o + obj-$(CONFIG_MEMCG_KMEM) += tcp_memcontrol.o + obj-$(CONFIG_NETLABEL) += cipso_ipv4.o + +diff -Nur linux-3.12.20.orig/net/ipv4/sysctl_net_ipv4.c linux-3.12.20/net/ipv4/sysctl_net_ipv4.c +--- linux-3.12.20.orig/net/ipv4/sysctl_net_ipv4.c 2014-05-15 09:56:19.000000000 +0200 ++++ linux-3.12.20/net/ipv4/sysctl_net_ipv4.c 2014-05-30 14:41:11.000000000 +0200 +@@ -236,6 +236,7 @@ + return 0; + } + ++#ifdef CONFIG_TCP_FASTOPEN + static int proc_tcp_fastopen_key(struct ctl_table *ctl, int write, + void __user *buffer, size_t *lenp, + loff_t *ppos) +@@ -277,6 +278,7 @@ + kfree(tbl.data); + return ret; + } ++#endif + + static struct ctl_table ipv4_table[] = { + { +@@ -426,6 +428,7 @@ + .proc_handler = proc_dointvec + }, + #endif ++#ifdef CONFIG_TCP_FASTOPEN + { + .procname = "tcp_fastopen", + .data = &sysctl_tcp_fastopen, +@@ -439,6 +442,7 @@ + .maxlen = ((TCP_FASTOPEN_KEY_LENGTH * 2) + 10), + .proc_handler = proc_tcp_fastopen_key, + }, ++#endif + { + .procname = "tcp_tw_recycle", + .data = &tcp_death_row.sysctl_tw_recycle, +diff -Nur linux-3.12.20.orig/net/ipv4/tcp.c linux-3.12.20/net/ipv4/tcp.c +--- linux-3.12.20.orig/net/ipv4/tcp.c 2014-05-15 09:56:19.000000000 +0200 ++++ linux-3.12.20/net/ipv4/tcp.c 2014-05-30 14:41:11.000000000 +0200 +@@ -992,6 +992,7 @@ + return tmp; + } + ++#ifdef CONFIG_TCP_FASTOPEN + void tcp_free_fastopen_req(struct tcp_sock *tp) + { + if (tp->fastopen_req != NULL) { +@@ -1025,6 +1026,7 @@ + tcp_free_fastopen_req(tp); + return err; + } ++#endif + + int tcp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, + size_t size) +@@ -1040,6 +1042,7 @@ + lock_sock(sk); + + flags = msg->msg_flags; ++#ifdef CONFIG_TCP_FASTOPEN + if (flags & MSG_FASTOPEN) { + err = tcp_sendmsg_fastopen(sk, msg, &copied_syn, size); + if (err == -EINPROGRESS && copied_syn > 0) +@@ -1048,6 +1051,7 @@ + goto out_err; + offset = copied_syn; + } ++#endif + + timeo = sock_sndtimeo(sk, flags & MSG_DONTWAIT); + +diff -Nur linux-3.12.20.orig/net/ipv4/tcp_ipv4.c linux-3.12.20/net/ipv4/tcp_ipv4.c +--- linux-3.12.20.orig/net/ipv4/tcp_ipv4.c 2014-05-15 09:56:19.000000000 +0200 ++++ linux-3.12.20/net/ipv4/tcp_ipv4.c 2014-05-30 14:41:11.000000000 +0200 +@@ -1259,6 +1259,7 @@ + }; + #endif + ++#ifdef CONFIG_TCP_FASTOPEN + static bool tcp_fastopen_check(struct sock *sk, struct sk_buff *skb, + struct request_sock *req, + struct tcp_fastopen_cookie *foc, +@@ -1439,6 +1440,23 @@ + WARN_ON(req->sk == NULL); + return 0; + } ++#else ++static bool tcp_fastopen_check(struct sock *sk, struct sk_buff *skb, ++ struct request_sock *req, ++ struct tcp_fastopen_cookie *foc, ++ struct tcp_fastopen_cookie *valid_foc) ++{ ++ return false; ++} ++ ++static int tcp_v4_conn_req_fastopen(struct sock *sk, ++ struct sk_buff *skb, ++ struct sk_buff *skb_synack, ++ struct request_sock *req) ++{ ++ return 0; ++} ++#endif + + int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb) + { |