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flow_table.c: Use built-in RCU list checking 

hlist_for_each_entry_rcu() has built-in RCU and lock checking.

Pass cond argument to list_for_each_entry_rcu() to silence
false lockdep warning when CONFIG_PROVE_RCU_LIST is enabled
by default.

Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Madhuparna Bhowmik 2020-02-19 01:28:20 +05:30 committed by David S. Miller
parent 53742e69e8
commit a2cfb96cc3
1 changed files with 4 additions and 2 deletions
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6
net/openvswitch/flow_table.c
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@ -585,7 +585,8 @@ static struct sw_flow *masked_flow_lookup(struct table_instance *ti,
head = find_bucket(ti, hash);
(*n_mask_hit)++;
hlist_for_each_entry_rcu(flow, head, flow_table.node[ti->node_ver]) {
hlist_for_each_entry_rcu(flow, head, flow_table.node[ti->node_ver],
lockdep_ovsl_is_held()) {
if (flow->mask == mask && flow->flow_table.hash == hash &&
flow_cmp_masked_key(flow, &masked_key, &mask->range))
return flow;
@ -769,7 +770,8 @@ struct sw_flow *ovs_flow_tbl_lookup_ufid(struct flow_table *tbl,
hash = ufid_hash(ufid);
head = find_bucket(ti, hash);
hlist_for_each_entry_rcu(flow, head, ufid_table.node[ti->node_ver]) {
hlist_for_each_entry_rcu(flow, head, ufid_table.node[ti->node_ver],
lockdep_ovsl_is_held()) {
if (flow->ufid_table.hash == hash &&
ovs_flow_cmp_ufid(flow, ufid))
return flow;