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authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-20 17:43:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-20 17:43:29 -0700
commitdb6d8c7a4027b48d797b369a53f8470aaeed7063 (patch)
treee140c104a89abc2154e1f41a7db8ebecbb6fa0b4 /include/net/sock.h
parent3a533374283aea50eab3976d8a6d30532175f009 (diff)
parentfb65a7c091529bfffb1262515252c0d0f6241c5c (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (1232 commits) iucv: Fix bad merging. net_sched: Add size table for qdiscs net_sched: Add accessor function for packet length for qdiscs net_sched: Add qdisc_enqueue wrapper highmem: Export totalhigh_pages. ipv6 mcast: Omit redundant address family checks in ip6_mc_source(). net: Use standard structures for generic socket address structures. ipv6 netns: Make several "global" sysctl variables namespace aware. netns: Use net_eq() to compare net-namespaces for optimization. ipv6: remove unused macros from net/ipv6.h ipv6: remove unused parameter from ip6_ra_control tcp: fix kernel panic with listening_get_next tcp: Remove redundant checks when setting eff_sacks tcp: options clean up tcp: Fix MD5 signatures for non-linear skbs sctp: Update sctp global memory limit allocations. sctp: remove unnecessary byteshifting, calculate directly in big-endian sctp: Allow only 1 listening socket with SO_REUSEADDR sctp: Do not leak memory on multiple listen() calls sctp: Support ipv6only AF_INET6 sockets. ...
Diffstat (limited to 'include/net/sock.h')
-rw-r--r--include/net/sock.h41
1 files changed, 11 insertions, 30 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index dc42b44c2aa1..06c5259aff30 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -166,7 +166,7 @@ struct sock_common {
* @sk_err: last error
* @sk_err_soft: errors that don't cause failure but are the cause of a
* persistent failure not just 'timed out'
- * @sk_drops: raw drops counter
+ * @sk_drops: raw/udp drops counter
* @sk_ack_backlog: current listen backlog
* @sk_max_ack_backlog: listen backlog set in listen()
* @sk_priority: %SO_PRIORITY setting
@@ -524,7 +524,7 @@ struct proto {
int (*ioctl)(struct sock *sk, int cmd,
unsigned long arg);
int (*init)(struct sock *sk);
- int (*destroy)(struct sock *sk);
+ void (*destroy)(struct sock *sk);
void (*shutdown)(struct sock *sk, int how);
int (*setsockopt)(struct sock *sk, int level,
int optname, char __user *optval,
@@ -565,7 +565,7 @@ struct proto {
#endif
/* Memory pressure */
- void (*enter_memory_pressure)(void);
+ void (*enter_memory_pressure)(struct sock *sk);
atomic_t *memory_allocated; /* Current allocated memory. */
atomic_t *sockets_allocated; /* Current number of sockets. */
/*
@@ -990,6 +990,11 @@ static inline void sock_put(struct sock *sk)
extern int sk_receive_skb(struct sock *sk, struct sk_buff *skb,
const int nested);
+static inline void sk_set_socket(struct sock *sk, struct socket *sock)
+{
+ sk->sk_socket = sock;
+}
+
/* Detach socket from process context.
* Announce socket dead, detach it from wait queue and inode.
* Note that parent inode held reference count on this struct sock,
@@ -1001,7 +1006,7 @@ static inline void sock_orphan(struct sock *sk)
{
write_lock_bh(&sk->sk_callback_lock);
sock_set_flag(sk, SOCK_DEAD);
- sk->sk_socket = NULL;
+ sk_set_socket(sk, NULL);
sk->sk_sleep = NULL;
write_unlock_bh(&sk->sk_callback_lock);
}
@@ -1011,7 +1016,7 @@ static inline void sock_graft(struct sock *sk, struct socket *parent)
write_lock_bh(&sk->sk_callback_lock);
sk->sk_sleep = &parent->wait;
parent->sk = sk;
- sk->sk_socket = parent;
+ sk_set_socket(sk, parent);
security_sock_graft(sk, parent);
write_unlock_bh(&sk->sk_callback_lock);
}
@@ -1205,7 +1210,7 @@ static inline struct page *sk_stream_alloc_page(struct sock *sk)
page = alloc_pages(sk->sk_allocation, 0);
if (!page) {
- sk->sk_prot->enter_memory_pressure();
+ sk->sk_prot->enter_memory_pressure(sk);
sk_stream_moderate_sndbuf(sk);
}
return page;
@@ -1331,30 +1336,6 @@ extern int net_msg_warn;
#define LIMIT_NETDEBUG(fmt, args...) \
do { if (net_msg_warn && net_ratelimit()) printk(fmt,##args); } while(0)
-/*
- * Macros for sleeping on a socket. Use them like this:
- *
- * SOCK_SLEEP_PRE(sk)
- * if (condition)
- * schedule();
- * SOCK_SLEEP_POST(sk)
- *
- * N.B. These are now obsolete and were, afaik, only ever used in DECnet
- * and when the last use of them in DECnet has gone, I'm intending to
- * remove them.
- */
-
-#define SOCK_SLEEP_PRE(sk) { struct task_struct *tsk = current; \
- DECLARE_WAITQUEUE(wait, tsk); \
- tsk->state = TASK_INTERRUPTIBLE; \
- add_wait_queue((sk)->sk_sleep, &wait); \
- release_sock(sk);
-
-#define SOCK_SLEEP_POST(sk) tsk->state = TASK_RUNNING; \
- remove_wait_queue((sk)->sk_sleep, &wait); \
- lock_sock(sk); \
- }
-
extern __u32 sysctl_wmem_max;
extern __u32 sysctl_rmem_max;