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| author |   WANG Cong <xiyou.wangcong@gmail.com> | 2016-11-11 10:20:50 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-11-14 13:17:21 -0500 |
| commit | d9dc8b0f8b4ec8cdc48ad5a20a3105387138be82 (patch) | |
| tree | a28c86da1c3ba7fef0f3fa82a5c7fc5bbb6fe2bf /net/tipc/socket.c | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next (diff) | |
| download | linux-dev-d9dc8b0f8b4ec8cdc48ad5a20a3105387138be82.tar.xz linux-dev-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/tipc/socket.c')
| -rw-r--r-- | net/tipc/socket.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 149396366e80..22d92f0ec5ac 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -876,9 +876,9 @@ exit: static int tipc_wait_for_sndmsg(struct socket *sock, long *timeo_p) { + DEFINE_WAIT_FUNC(wait, woken_wake_function); struct sock *sk = sock->sk; struct tipc_sock *tsk = tipc_sk(sk); - DEFINE_WAIT(wait); int done; do { @@ -892,9 +892,9 @@ static int tipc_wait_for_sndmsg(struct socket *sock, long *timeo_p) if (signal_pending(current)) return sock_intr_errno(*timeo_p); - prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); - done = sk_wait_event(sk, timeo_p, !tsk->link_cong); - finish_wait(sk_sleep(sk), &wait); + add_wait_queue(sk_sleep(sk), &wait); + done = sk_wait_event(sk, timeo_p, !tsk->link_cong, &wait); + remove_wait_queue(sk_sleep(sk), &wait); } while (!done); return 0; } @@ -1031,9 +1031,9 @@ new_mtu: static int tipc_wait_for_sndpkt(struct socket *sock, long *timeo_p) { + DEFINE_WAIT_FUNC(wait, woken_wake_function); struct sock *sk = sock->sk; struct tipc_sock *tsk = tipc_sk(sk); - DEFINE_WAIT(wait); int done; do { @@ -1049,12 +1049,12 @@ static int tipc_wait_for_sndpkt(struct socket *sock, long *timeo_p) if (signal_pending(current)) return sock_intr_errno(*timeo_p); - prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); + add_wait_queue(sk_sleep(sk), &wait); done = sk_wait_event(sk, timeo_p, (!tsk->link_cong && !tsk_conn_cong(tsk)) || - !tipc_sk_connected(sk)); - finish_wait(sk_sleep(sk), &wait); + !tipc_sk_connected(sk), &wait); + remove_wait_queue(sk_sleep(sk), &wait); } while (!done); return 0; } @@ -1929,8 +1929,8 @@ xmit: static int tipc_wait_for_connect(struct socket *sock, long *timeo_p) { + DEFINE_WAIT_FUNC(wait, woken_wake_function); struct sock *sk = sock->sk; - DEFINE_WAIT(wait); int done; do { @@ -1942,10 +1942,10 @@ static int tipc_wait_for_connect(struct socket *sock, long *timeo_p) if (signal_pending(current)) return sock_intr_errno(*timeo_p); - prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); + add_wait_queue(sk_sleep(sk), &wait); done = sk_wait_event(sk, timeo_p, - sk->sk_state != TIPC_CONNECTING); - finish_wait(sk_sleep(sk), &wait); + sk->sk_state != TIPC_CONNECTING, &wait); + remove_wait_queue(sk_sleep(sk), &wait); } while (!done); return 0; } |