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Commit cfb0c089 authored by Allan Stephens's avatar Allan Stephens Committed by David S. Miller
Browse files

[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: default avatarAllan Stephens <allan.stephens@windriver.com>
Signed-off-by: default avatarPer Liden <per.liden@ericsson.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e91ed0bc

net/tipc/socket.c

+4 −2
Original line number Original line Diff line number Diff line
@@ -1208,6 +1208,7 @@ static u32 dispatch(struct tipc_port *tport, struct sk_buff *buf) 
	atomic_inc(&tipc_queue_size);

	atomic_inc(&tipc_queue_size);

	skb_queue_tail(&sock->sk->sk_receive_queue, buf);

	skb_queue_tail(&sock->sk->sk_receive_queue, buf);





	if (waitqueue_active(sock->sk->sk_sleep))

		wake_up_interruptible(sock->sk->sk_sleep);

		wake_up_interruptible(sock->sk->sk_sleep);

	return TIPC_OK;

	return TIPC_OK;

}

}
@@ -1223,6 +1224,7 @@ static void wakeupdispatch(struct tipc_port *tport) 
{

{

	struct tipc_sock *tsock = (struct tipc_sock *)tport->usr_handle;

	struct tipc_sock *tsock = (struct tipc_sock *)tport->usr_handle;





	if (waitqueue_active(tsock->sk.sk_sleep))

		wake_up_interruptible(tsock->sk.sk_sleep);

		wake_up_interruptible(tsock->sk.sk_sleep);

}

}