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net/core: add lock context change annotations in net/core/sock.c

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__lock_sock() and __release_sock() releases and regrabs lock but
were missing proper annotations. Add it. This removes following
warning from sparse. (Currently __lock_sock() does not emit any
warning about it but I think it is better to add also.)

 net/core/sock.c:1580:17: warning: context imbalance in '__release_sock' - unexpected unlock

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Namhyung Kim 2010-09-08 03:48:48 +00:00 committed by David S. Miller
parent a700d8be73
commit f39234d606
1 changed files with 4 additions and 0 deletions
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4
net/core/sock.c
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@ -1557,6 +1557,8 @@ struct sk_buff *sock_alloc_send_skb(struct sock *sk, unsigned long size,
EXPORT_SYMBOL(sock_alloc_send_skb);
static void __lock_sock(struct sock *sk)
__releases(&sk->sk_lock.slock)
__acquires(&sk->sk_lock.slock)
{
DEFINE_WAIT(wait);
@ -1573,6 +1575,8 @@ static void __lock_sock(struct sock *sk)
}
static void __release_sock(struct sock *sk)
__releases(&sk->sk_lock.slock)
__acquires(&sk->sk_lock.slock)
{
struct sk_buff *skb = sk->sk_backlog.head;