---

yaml --- r: 103221 b: refs/heads/master c: 639e104 h: refs/heads/master i: 103219: fb19a8b v: v3
git-mirror · Jul 6, 2008 · 2d8ab55 · 2d8ab55
1 parent 0130ce5
commit 2d8ab55
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Showing 2 changed files with 9 additions and 4 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ae299fc051aa68ca6ef1807c37bb92d9b6ff817c
+refs/heads/master: 639e104facec20f64f2eb940851ae45e5f255e6b
diff --git a/trunk/net/ipv4/route.c b/trunk/net/ipv4/route.c
@@ -2829,14 +2829,20 @@ void ip_rt_multicast_event(struct in_device *in_dev)
 }
 
 #ifdef CONFIG_SYSCTL
-static int flush_delay;
-
 static int ipv4_sysctl_rtcache_flush(ctl_table *ctl, int write,
 					struct file *filp, void __user *buffer,
 					size_t *lenp, loff_t *ppos)
 {
 	if (write) {
+		int flush_delay;
+		static DEFINE_MUTEX(flush_mutex);
+
+		mutex_lock(&flush_mutex);
+		ctl->data = &flush_delay;
 		proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
+		ctl->data = NULL;
+		mutex_unlock(&flush_mutex);
+
 		rt_cache_flush(&init_net, flush_delay);
 		return 0;
 	}
@@ -2865,7 +2871,6 @@ ctl_table ipv4_route_table[] = {
 	{
 		.ctl_name 	= NET_IPV4_ROUTE_FLUSH,
 		.procname	= "flush",
-		.data		= &flush_delay,
 		.maxlen		= sizeof(int),
 		.mode		= 0200,
 		.proc_handler	= &ipv4_sysctl_rtcache_flush,