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net: openvswitch: use hlist_for_each_entry_rcu instead of hlist_for_each_entry

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The struct sw_flow is protected by RCU, when traversing them,
use hlist_for_each_entry_rcu.

Signed-off-by: Tonghao Zhang <[email protected]>
Tested-by: Greg Rose <[email protected]>
Reviewed-by: Greg Rose <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Tonghao Zhang authored and David S. Miller committed 2020-04-02 17:48:12 -07:00
1 parent c427bfec18
commit 64948427a6
1 file changed
+6 -4
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net/openvswitch/flow_table.c
+6 -4
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@@ -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);
}