From 64948427a63f49dd0ce403388d232f22cc1971a8 Mon Sep 17 00:00:00 2001 From: Tonghao Zhang Date: Thu, 26 Mar 2020 04:27:24 +0800 Subject: [PATCH] net: openvswitch: use hlist_for_each_entry_rcu instead of hlist_for_each_entry The struct sw_flow is protected by RCU, when traversing them, use hlist_for_each_entry_rcu. Signed-off-by: Tonghao Zhang Tested-by: Greg Rose Reviewed-by: Greg Rose Signed-off-by: David S. Miller --- net/openvswitch/flow_table.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/net/openvswitch/flow_table.c b/net/openvswitch/flow_table.c index fd8a01ca7a2d..2398d7238300 100644 --- a/net/openvswitch/flow_table.c +++ b/net/openvswitch/flow_table.c @@ -462,12 +462,14 @@ static void flow_table_copy_flows(struct table_instance *old, struct hlist_head *head = &old->buckets[i]; if (ufid) - hlist_for_each_entry(flow, head, - ufid_table.node[old_ver]) + hlist_for_each_entry_rcu(flow, head, + ufid_table.node[old_ver], + lockdep_ovsl_is_held()) ufid_table_instance_insert(new, flow); else - hlist_for_each_entry(flow, head, - flow_table.node[old_ver]) + hlist_for_each_entry_rcu(flow, head, + flow_table.node[old_ver], + lockdep_ovsl_is_held()) table_instance_insert(new, flow); }