[PATCH net-next 7/9] net: openvswitch: add likely in flow_lookup
From: <hidden>
Date: 2019-09-30 02:09:19
Subsystem:
networking [general], openvswitch, the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Aaron Conole, Eelco Chaudron, Ilya Maximets, Linus Torvalds
From: Tonghao Zhang <redacted> The most case *index < ma->max, we add likely for performance. Signed-off-by: Tonghao Zhang <redacted> --- net/openvswitch/flow_table.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/openvswitch/flow_table.c b/net/openvswitch/flow_table.c
index c8e79c1..c21fd52 100644
--- a/net/openvswitch/flow_table.c
+++ b/net/openvswitch/flow_table.c@@ -526,7 +526,7 @@ static struct sw_flow *flow_lookup(struct flow_table *tbl, struct sw_flow_mask *mask; int i; - if (*index < ma->max) { + if (likely(*index < ma->max)) { mask = rcu_dereference_ovsl(ma->masks[*index]); if (mask) { flow = masked_flow_lookup(ti, key, mask, n_mask_hit);
--
1.8.3.1