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authorHerbert Xu <herbert@gondor.apana.org.au>2010-03-05 21:07:39 +0000
committerDavid S. Miller <davem@davemloft.net>2010-03-07 15:31:12 -0800
commit49f5fcfd4ac3df24aa66520e1c5f37db5dfa8c10 (patch)
tree7fad39a6ebffeec4c7aa3a217c3389454ed4e909 /net/bridge
parent0c9a2ac1f8a2e55b3382dfc27256878a58ea49e9 (diff)
bridge: Use RCU list primitive in __br_mdb_ip_get
As Paul McKenney correctly pointed out, __br_mdb_ip_get needs to use the RCU list walking primitive in order to work correctly on platforms where data-dependency ordering is not guaranteed. Reported-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge')
-rw-r--r--net/bridge/br_multicast.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 8b258872eba..a1ffe1582c9 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -38,7 +38,7 @@ static struct net_bridge_mdb_entry *__br_mdb_ip_get(
struct net_bridge_mdb_entry *mp;
struct hlist_node *p;
- hlist_for_each_entry(mp, p, &mdb->mhash[hash], hlist[mdb->ver]) {
+ hlist_for_each_entry_rcu(mp, p, &mdb->mhash[hash], hlist[mdb->ver]) {
if (dst == mp->addr)
return mp;
}