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Subject[PATCH 1/4] meter.c: Use built-in RCU list checking
Date
From: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>

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>
---
net/openvswitch/meter.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/openvswitch/meter.c b/net/openvswitch/meter.c
index 3323b79ff548..5010d1ddd4bd 100644
--- a/net/openvswitch/meter.c
+++ b/net/openvswitch/meter.c
@@ -61,7 +61,8 @@ static struct dp_meter *lookup_meter(const struct datapath *dp,
struct hlist_head *head;

head = meter_hash_bucket(dp, meter_id);
- hlist_for_each_entry_rcu(meter, head, dp_hash_node) {
+ hlist_for_each_entry_rcu(meter, head, dp_hash_node,
+ lockdep_ovsl_is_held()) {
if (meter->id == meter_id)
return meter;
}
--
2.17.1
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