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[TIPC]: Optimize wakeup logic when socket has no waiting processes

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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>
This commit is contained in:
Allan Stephens 2006-10-16 21:47:18 -07:00 committed by David S. Miller
parent e91ed0bcdf
commit cfb0c0890b
1 changed files with 4 additions and 2 deletions
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6
net/tipc/socket.c
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@ -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);
}
/**