From cb1cc195e5492ec48dde3587fa4f7156b37a3e6e Mon Sep 17 00:00:00 2001
From: Sven Wegener <sven.wegener@stealer.net>
Date: Wed, 16 Jul 2008 11:13:56 +0000
Subject: [PATCH] --- yaml --- r: 103553 b: refs/heads/master c:
 ba6fd85021dec97d58373d9aea4bea8fc24258be h: refs/heads/master i:   103551:
 70376bb5fe96b40392ba9297195150ff4fe8a94d v: v3

---
 [refs]                           | 2 +-
 trunk/net/ipv4/ipvs/ip_vs_sync.c | 7 +++++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/[refs] b/[refs]
index 75d628b59e48..2785b84dfc58 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 998e7a76804b7a273a0460c2cdd5a51fa9856717
+refs/heads/master: ba6fd85021dec97d58373d9aea4bea8fc24258be
diff --git a/trunk/net/ipv4/ipvs/ip_vs_sync.c b/trunk/net/ipv4/ipvs/ip_vs_sync.c
index 550563a56607..cf5ed758ea1f 100644
--- a/trunk/net/ipv4/ipvs/ip_vs_sync.c
+++ b/trunk/net/ipv4/ipvs/ip_vs_sync.c
@@ -29,6 +29,7 @@
 #include <linux/udp.h>
 #include <linux/err.h>
 #include <linux/kthread.h>
+#include <linux/wait.h>
 
 #include <net/ip.h>
 #include <net/sock.h>
@@ -772,6 +773,10 @@ static int sync_thread_backup(void *data)
 		   ip_vs_backup_mcast_ifn, ip_vs_backup_syncid);
 
 	while (!kthread_should_stop()) {
+		wait_event_interruptible(*tinfo->sock->sk->sk_sleep,
+			 !skb_queue_empty(&tinfo->sock->sk->sk_receive_queue)
+			 || kthread_should_stop());
+
 		/* do we have data now? */
 		while (!skb_queue_empty(&(tinfo->sock->sk->sk_receive_queue))) {
 			len = ip_vs_receive(tinfo->sock, tinfo->buf,
@@ -787,8 +792,6 @@ static int sync_thread_backup(void *data)
 			ip_vs_process_message(tinfo->buf, len);
 			local_bh_enable();
 		}
-
-		msleep_interruptible(1000);
 	}
 
 	/* release the sending multicast socket */