ipmr: do not acquire mrt_lock in ipmr_get_route()

mr_fill_mroute() uses standard rcu_read_unlock(), no need to grab mrt_lock anymore. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
mariux64 · Jun 24, 2022 · e4cd986 · e4cd986
1 parent 4eadb88
commit e4cd986
Showing 1 changed file with 0 additions and 2 deletions.
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
@@ -2289,9 +2289,7 @@ int ipmr_get_route(struct net *net, struct sk_buff *skb,
 		return err;
 	}
 
-	read_lock(&mrt_lock);
 	err = mr_fill_mroute(mrt, skb, &cache->_c, rtm);
-	read_unlock(&mrt_lock);
 	rcu_read_unlock();
 	return err;
 }