[PATCH net-next v2 1/3] bonding: use RCU protection for 3ad xmit path
From: Ding Tianhong <hidden>
Date: 2013-10-10 11:51:25
Subsystem:
bonding driver, networking drivers, the rest · Maintainers:
Jay Vosburgh, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
The commit 278b20837511776dc9d5f6ee1c7fabd5479838bb (bonding: initial RCU conversion) has convert the roundrobin, active-backup, broadcast and xor xmit path to rcu protection, the performance will be better for these mode, so this time, convert xmit path for 3ad mode. Suggested-by: Nikolay Aleksandrov <redacted> Suggested-by: Veaceslav Falico <redacted> Signed-off-by: Ding Tianhong <redacted> Signed-off-by: Wang Yufen <redacted> Cc: Nikolay Aleksandrov <redacted> Cc: Veaceslav Falico <redacted> --- drivers/net/bonding/bond_3ad.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index ea3e64e..187b1b7 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c@@ -2344,7 +2344,7 @@ int __bond_3ad_get_active_agg_info(struct bonding *bond, struct slave *slave; struct port *port; - bond_for_each_slave(bond, slave, iter) { + bond_for_each_slave_rcu(bond, slave, iter) { port = &(SLAVE_AD_INFO(slave).port); if (port->aggregator && port->aggregator->is_active) { aggregator = port->aggregator;
@@ -2369,9 +2369,9 @@ int bond_3ad_get_active_agg_info(struct bonding *bond, struct ad_info *ad_info) { int ret; - read_lock(&bond->lock); + rcu_read_lock(); ret = __bond_3ad_get_active_agg_info(bond, ad_info); - read_unlock(&bond->lock); + rcu_read_unlock(); return ret; }
@@ -2388,7 +2388,6 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev) int res = 1; int agg_id; - read_lock(&bond->lock); if (__bond_3ad_get_active_agg_info(bond, &ad_info)) { pr_debug("%s: Error: __bond_3ad_get_active_agg_info failed\n", dev->name);
@@ -2406,7 +2405,7 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev) slave_agg_no = bond_xmit_hash(bond, skb, slaves_in_agg); first_ok_slave = NULL; - bond_for_each_slave(bond, slave, iter) { + bond_for_each_slave_rcu(bond, slave, iter) { agg = SLAVE_AD_INFO(slave).port.aggregator; if (!agg || agg->aggregator_identifier != agg_id) continue;
@@ -2436,7 +2435,6 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev) res = bond_dev_queue_xmit(bond, skb, first_ok_slave->dev); out: - read_unlock(&bond->lock); if (res) { /* no suitable interface, frame not sent */ kfree_skb(skb);
--
1.8.2.1