diff options
| author | WANG Cong | 2016-11-11 19:20:50 +0100 |
|---|---|---|
| committer | David S. Miller | 2016-11-14 19:17:21 +0100 |
| commit | d9dc8b0f8b4ec8cdc48ad5a20a3105387138be82 (patch) | |
| tree | a28c86da1c3ba7fef0f3fa82a5c7fc5bbb6fe2bf /net/core/sock.c | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next (diff) | |
| download | kernel-qcow2-linux-d9dc8b0f8b4ec8cdc48ad5a20a3105387138be82.tar.gz kernel-qcow2-linux-d9dc8b0f8b4ec8cdc48ad5a20a3105387138be82.tar.xz kernel-qcow2-linux-d9dc8b0f8b4ec8cdc48ad5a20a3105387138be82.zip | |
net: fix sleeping for sk_wait_event()
Similar to commit 14135f30e33c ("inet: fix sleeping inside inet_wait_for_connect()"),
sk_wait_event() needs to fix too, because release_sock() is blocking,
it changes the process state back to running after sleep, which breaks
the previous prepare_to_wait().
Switch to the new wait API.
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/sock.c')
| -rw-r--r-- | net/core/sock.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/net/core/sock.c b/net/core/sock.c index 40dbc13453f9..0397928dfdc2 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -2078,14 +2078,14 @@ void __sk_flush_backlog(struct sock *sk) */ int sk_wait_data(struct sock *sk, long *timeo, const struct sk_buff *skb) { + DEFINE_WAIT_FUNC(wait, woken_wake_function); int rc; - DEFINE_WAIT(wait); - prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); + add_wait_queue(sk_sleep(sk), &wait); sk_set_bit(SOCKWQ_ASYNC_WAITDATA, sk); - rc = sk_wait_event(sk, timeo, skb_peek_tail(&sk->sk_receive_queue) != skb); + rc = sk_wait_event(sk, timeo, skb_peek_tail(&sk->sk_receive_queue) != skb, &wait); sk_clear_bit(SOCKWQ_ASYNC_WAITDATA, sk); - finish_wait(sk_sleep(sk), &wait); + remove_wait_queue(sk_sleep(sk), &wait); return rc; } EXPORT_SYMBOL(sk_wait_data); |