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authorVeaceslav Falico <vfalico@redhat.com>2014-02-18 07:48:36 +0100
committerDavid S. Miller <davem@davemloft.net>2014-02-18 16:47:14 -0500
commit3b7d636b50fb38e4e0f1113ba7bff8dcd19d140f (patch)
tree64fefe9dcd22c96e1c54d6d430e750d7d8395c82
parent814ce14806e9c8ea4b54ed766d3363fd86e931c0 (diff)
downloadlinux-3b7d636b50fb38e4e0f1113ba7bff8dcd19d140f.tar.bz2
bonding: remove bond->lock from bond_arp_rcv
We're always called with rcu_read_lock() held (bond_arp_rcv() is only called from bond_handle_frame(), which is rx_handler and always called under rcu from __netif_receive_skb_core() ). The slave active/passive and/or bonding params can change in-flight, however we don't really care about that - we only modify the last time packet was received, which is harmless. CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Acked-by: Ding Tianhong <dingtianhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/bonding/bond_main.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 3bce855e627b..3c50bece69ff 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2260,8 +2260,6 @@ int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond,
if (skb->protocol != __cpu_to_be16(ETH_P_ARP))
return RX_HANDLER_ANOTHER;
- read_lock(&bond->lock);
-
if (!slave_do_arp_validate(bond, slave))
goto out_unlock;
@@ -2318,7 +2316,6 @@ int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond,
bond_validate_arp(bond, slave, tip, sip);
out_unlock:
- read_unlock(&bond->lock);
if (arp != (struct arphdr *)skb->data)
kfree(arp);
return RX_HANDLER_ANOTHER;