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authorWANG Cong <xiyou.wangcong@gmail.com>2016-11-11 21:20:50 +0300
committerDavid S. Miller <davem@davemloft.net>2016-11-14 21:17:21 +0300
commitd9dc8b0f8b4ec8cdc48ad5a20a3105387138be82 (patch)
treea28c86da1c3ba7fef0f3fa82a5c7fc5bbb6fe2bf /net/phonet/pep.c
parent7d384846b9987f7b611357adf3cdfecfdcf0c402 (diff)
downloadlinux-d9dc8b0f8b4ec8cdc48ad5a20a3105387138be82.tar.xz
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/phonet/pep.c')
-rw-r--r--net/phonet/pep.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/net/phonet/pep.c b/net/phonet/pep.c
index 850a86cde0b3..8bad5624a27a 100644
--- a/net/phonet/pep.c
+++ b/net/phonet/pep.c
@@ -1167,7 +1167,7 @@ disabled:
/* Wait until flow control allows TX */
done = atomic_read(&pn->tx_credits);
while (!done) {
- DEFINE_WAIT(wait);
+ DEFINE_WAIT_FUNC(wait, woken_wake_function);
if (!timeo) {
err = -EAGAIN;
@@ -1178,10 +1178,9 @@ disabled:
goto out;
}
- prepare_to_wait(sk_sleep(sk), &wait,
- TASK_INTERRUPTIBLE);
- done = sk_wait_event(sk, &timeo, atomic_read(&pn->tx_credits));
- finish_wait(sk_sleep(sk), &wait);
+ add_wait_queue(sk_sleep(sk), &wait);
+ done = sk_wait_event(sk, &timeo, atomic_read(&pn->tx_credits), &wait);
+ remove_wait_queue(sk_sleep(sk), &wait);
if (sk->sk_state != TCP_ESTABLISHED)
goto disabled;