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authorTonghao Zhang <xiangxia.m.yue@gmail.com>2020-03-26 04:27:24 +0800
committerDavid S. Miller <davem@davemloft.net>2020-04-02 17:48:12 -0700
commit64948427a63f49dd0ce403388d232f22cc1971a8 (patch)
treecf65449b07bddf5df49abf0f03648de830d75ad0 /net/openvswitch
parentc427bfec18f2190b8f4718785ee8ed2db4f84ee6 (diff)
downloadlinux-64948427a63f49dd0ce403388d232f22cc1971a8.tar.bz2
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 <xiangxia.m.yue@gmail.com> Tested-by: Greg Rose <gvrose8192@gmail.com> Reviewed-by: Greg Rose <gvrose8192@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/openvswitch')
-rw-r--r--net/openvswitch/flow_table.c10
1 files 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);
}