From: xiangxia.m.yue@gmail.com
To: pshelar@ovn.org, gvrose8192@gmail.com
Cc: netdev@vger.kernel.org, Tonghao Zhang <xiangxia.m.yue@gmail.com>
Subject: [PATCH net-next 7/7] net: openvswitch: add likely in flow_lookup
Date: Fri, 20 Sep 2019 00:54:53 +0800 [thread overview]
Message-ID: <1568912093-68535-8-git-send-email-xiangxia.m.yue@gmail.com> (raw)
In-Reply-To: <1568912093-68535-1-git-send-email-xiangxia.m.yue@gmail.com>
From: Tonghao Zhang <xiangxia.m.yue@gmail.com>
The most case *index < ma->max, we add likely for performance.
Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
---
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 223470a..bd7e976 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
next prev parent reply other threads:[~2019-09-26 8:47 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-19 16:54 [PATCH net-next 0/7] optimize openvswitch flow looking up xiangxia.m.yue
2019-09-19 16:54 ` [PATCH net-next 1/7] net: openvswitch: add flow-mask cache for performance xiangxia.m.yue
2019-09-19 16:54 ` [PATCH net-next 2/7] net: openvswitch: convert mask list in mask array xiangxia.m.yue
2019-09-19 16:54 ` [PATCH net-next 3/7] net: openvswitch: shrink the mask array if necessary xiangxia.m.yue
2019-09-19 16:54 ` [PATCH net-next 4/7] net: openvswitch: optimize flow mask cache hash collision xiangxia.m.yue
2019-09-19 16:54 ` [PATCH net-next 5/7] net: openvswitch: optimize flow-mask looking up xiangxia.m.yue
2019-09-19 16:54 ` [PATCH net-next 6/7] net: openvswitch: simplify the flow_hash xiangxia.m.yue
2019-09-19 16:54 ` xiangxia.m.yue [this message]
2019-09-26 10:14 ` [PATCH net-next 0/7] optimize openvswitch flow looking up David Miller
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