From: Julian Anastasov <ja@ssi.bg>
Date: Fri, 22 Mar 2013 09:46:42 +0000 (+0200)
Subject: ipvs: convert lc scheduler to rcu
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=4ebd288b69dcebde1adc5e4c21758ef6dfc7e06f;p=deliverable%2Flinux.git

ipvs: convert lc scheduler to rcu

The schedule method now needs _rcu list-traversal
primitive for svc->destinations.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
---

diff --git a/net/netfilter/ipvs/ip_vs_lc.c b/net/netfilter/ipvs/ip_vs_lc.c
index f391819c0cca..0cabf78fbc31 100644
--- a/net/netfilter/ipvs/ip_vs_lc.c
+++ b/net/netfilter/ipvs/ip_vs_lc.c
@@ -42,7 +42,7 @@ ip_vs_lc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
 	 * served, but no new connection is assigned to the server.
 	 */
 
-	list_for_each_entry(dest, &svc->destinations, n_list) {
+	list_for_each_entry_rcu(dest, &svc->destinations, n_list) {
 		if ((dest->flags & IP_VS_DEST_F_OVERLOAD) ||
 		    atomic_read(&dest->weight) == 0)
 			continue;