[PATCH 27/34] ipvs: convert wlc scheduler to rcu

[Simon Horman <horms@xxxxxxxxxxxx>]

From: Julian Anastasov <ja@xxxxxx>

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

Signed-off-by: Julian Anastasov <ja@xxxxxx>
Signed-off-by: Simon Horman <horms@xxxxxxxxxxxx>
---
 net/netfilter/ipvs/ip_vs_wlc.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/netfilter/ipvs/ip_vs_wlc.c b/net/netfilter/ipvs/ip_vs_wlc.c
index bc1bfc4..dafae88 100644
--- a/net/netfilter/ipvs/ip_vs_wlc.c
+++ b/net/netfilter/ipvs/ip_vs_wlc.c
@@ -51,7 +51,7 @@ ip_vs_wlc_schedule(struct ip_vs_service *svc, const struct 
sk_buff *skb)
         * new connections.
         */
 
-       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) {
                        least = dest;
@@ -66,7 +66,7 @@ ip_vs_wlc_schedule(struct ip_vs_service *svc, const struct 
sk_buff *skb)
         *    Find the destination with the least load.
         */
   nextstage:
-       list_for_each_entry_continue(dest, &svc->destinations, n_list) {
+       list_for_each_entry_continue_rcu(dest, &svc->destinations, n_list) {
                if (dest->flags & IP_VS_DEST_F_OVERLOAD)
                        continue;
                doh = ip_vs_dest_conn_overhead(dest);
-- 
1.7.10.4

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