From 6f3d09291b4982991680b61763b2541e53e2a95f Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Wed, 19 Mar 2008 01:44:24 +0100 Subject: [PATCH] sched, net: socket wakeups are sync 'sync' wakeups are a hint towards the scheduler that (certain) networking related wakeups likely create coupling between tasks. Signed-off-by: Ingo Molnar --- net/core/sock.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/core/sock.c b/net/core/sock.c index 09cb3a74de7..2654c147c00 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1621,7 +1621,7 @@ static void sock_def_readable(struct sock *sk, int len) { read_lock(&sk->sk_callback_lock); if (sk->sk_sleep && waitqueue_active(sk->sk_sleep)) - wake_up_interruptible(sk->sk_sleep); + wake_up_interruptible_sync(sk->sk_sleep); sk_wake_async(sk, SOCK_WAKE_WAITD, POLL_IN); read_unlock(&sk->sk_callback_lock); } @@ -1635,7 +1635,7 @@ static void sock_def_write_space(struct sock *sk) */ if ((atomic_read(&sk->sk_wmem_alloc) << 1) <= sk->sk_sndbuf) { if (sk->sk_sleep && waitqueue_active(sk->sk_sleep)) - wake_up_interruptible(sk->sk_sleep); + wake_up_interruptible_sync(sk->sk_sleep); /* Should agree with poll, otherwise some programs break */ if (sock_writeable(sk)) -- 2.41.1