netdev - [PATCH] bond_alb: do not disable BH under netpoll

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Message-Id: <1325643618-3051-1-git-send-email-maxim.uvarov@oracle.com>
Date:	Tue,  3 Jan 2012 18:20:18 -0800
From:	Maxim Uvarov <maxim.uvarov@...cle.com>
To:	netdev@...r.kernel.org
Cc:	Maxim Uvarov <maxim.uvarov@...cle.com>
Subject: [PATCH] bond_alb: do not disable BH under netpoll

Do not disable BH if interrupts are already disabled
(netpoll case).
Signed-off-by: Maxim Uvarov <maxim.uvarov@...cle.com>
---
 drivers/net/bonding/bond_alb.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index d4fbd2e..69eeb36 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -101,12 +101,18 @@ static inline u8 _simple_hash(const u8 *hash_start, int hash_size)
 
 static inline void _lock_tx_hashtbl(struct bonding *bond)
 {
-	spin_lock_bh(&(BOND_ALB_INFO(bond).tx_hashtbl_lock));
+	if (unlikely(irqs_disabled())) /*netpoll case*/
+		spin_lock(&(BOND_ALB_INFO(bond).tx_hashtbl_lock));
+	else
+		spin_lock_bh(&(BOND_ALB_INFO(bond).tx_hashtbl_lock));
 }
 
 static inline void _unlock_tx_hashtbl(struct bonding *bond)
 {
-	spin_unlock_bh(&(BOND_ALB_INFO(bond).tx_hashtbl_lock));
+	if (unlikely(irqs_disabled())) /*netpoll case*/
+		spin_unlock(&(BOND_ALB_INFO(bond).tx_hashtbl_lock));
+	else
+		spin_unlock_bh(&(BOND_ALB_INFO(bond).tx_hashtbl_lock));
 }
 
 /* Caller must hold tx_hashtbl lock */
-- 
1.7.4.1

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