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authorAllan Stephens <allan.stephens@windriver.com>2006-10-16 21:47:18 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2006-10-18 19:55:17 -0700
commitcfb0c0890b200364c0886c0d9f0dc615f8114c43 (patch)
treed3dedd5c3fad9e2b6ee26b53b10fb0039416ec64 /net/tipc/socket.c
parente91ed0bcdfc4812c0342d64281ee985213df07c3 (diff)
downloadlinux-2.6.34-ux500-cfb0c0890b200364c0886c0d9f0dc615f8114c43.tar.gz
[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>
Diffstat (limited to 'net/tipc/socket.c')
-rw-r--r--net/tipc/socket.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index ed900fe96bd..2a6a5a6b4c1 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);
}
/**