netdev - [PATCH net-next 3/4] bonding: remove no longer needed lock for bond_xxx_info

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Date:	Fri, 21 Feb 2014 16:08:54 +0800
From:	Ding Tianhong <dingtianhong@...wei.com>
To:	<fubar@...ibm.com>, <vfalico@...hat.com>, <andy@...yhouse.net>
CC:	<davem@...emloft.net>, <netdev@...r.kernel.org>
Subject: [PATCH net-next 3/4] bonding: remove no longer needed lock for bond_xxx_info_query()

The bond_xxx_info_query() was already in RTNL, so no need to use
bond lock to protect the bond slave list, so remove it.

Cc: Jay Vosburgh <fubar@...ibm.com>
Cc: Veaceslav Falico <vfalico@...hat.com>
Cc: Andy Gospodarek <andy@...yhouse.net>
Signed-off-by: Ding Tianhong <dingtianhong@...wei.com>
---
 drivers/net/bonding/bond_main.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index affe0c4..4fa8ea7 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1816,9 +1816,7 @@ static int bond_info_query(struct net_device *bond_dev, struct ifbond *info)
 	info->bond_mode = bond->params.mode;
 	info->miimon = bond->params.miimon;
 
-	read_lock(&bond->lock);
 	info->num_slaves = bond->slave_cnt;
-	read_unlock(&bond->lock);
 
 	return 0;
 }
@@ -1830,7 +1828,6 @@ static int bond_slave_info_query(struct net_device *bond_dev, struct ifslave *in
 	int i = 0, res = -ENODEV;
 	struct slave *slave;
 
-	read_lock(&bond->lock);
 	bond_for_each_slave(bond, slave, iter) {
 		if (i++ == (int)info->slave_id) {
 			res = 0;
@@ -1841,7 +1838,6 @@ static int bond_slave_info_query(struct net_device *bond_dev, struct ifslave *in
 			break;
 		}
 	}
-	read_unlock(&bond->lock);
 
 	return res;
 }
-- 
1.8.0


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