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| author | Allan Stephens <allan.stephens@windriver.com> | 2006-10-16 21:47:18 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-10-18 19:55:17 -0700 |
| commit | cfb0c0890b200364c0886c0d9f0dc615f8114c43 (patch) | |
| tree | d3dedd5c3fad9e2b6ee26b53b10fb0039416ec64 | |
| parent | e91ed0bcdfc4812c0342d64281ee985213df07c3 (diff) | |
| download | kernel_samsung_smdk4412-cfb0c0890b200364c0886c0d9f0dc615f8114c43.zip kernel_samsung_smdk4412-cfb0c0890b200364c0886c0d9f0dc615f8114c43.tar.gz kernel_samsung_smdk4412-cfb0c0890b200364c0886c0d9f0dc615f8114c43.tar.bz2 | |
[TIPC]: Optimize wakeup logic when socket has no waiting processes
This patch adds a simple test so TIPC doesn't try waking up processes
waiting on a socket if there are none waiting.
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/tipc/socket.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/tipc/socket.c b/net/tipc/socket.c index ed900fe..2a6a5a6 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -1208,7 +1208,8 @@ static u32 dispatch(struct tipc_port *tport, struct sk_buff *buf) atomic_inc(&tipc_queue_size); skb_queue_tail(&sock->sk->sk_receive_queue, buf); - wake_up_interruptible(sock->sk->sk_sleep); + if (waitqueue_active(sock->sk->sk_sleep)) + wake_up_interruptible(sock->sk->sk_sleep); return TIPC_OK; } @@ -1223,7 +1224,8 @@ static void wakeupdispatch(struct tipc_port *tport) { struct tipc_sock *tsock = (struct tipc_sock *)tport->usr_handle; - wake_up_interruptible(tsock->sk.sk_sleep); + if (waitqueue_active(tsock->sk.sk_sleep)) + wake_up_interruptible(tsock->sk.sk_sleep); } /** |