From: Veaceslav Falico <vfalico@redhat.com>
Date: Mon, 17 Jun 2013 17:30:35 +0000 (+0200)
Subject: bonding: don't call alb_set_slave_mac_addr() while atomic
X-Git-Tag: v3.11-rc1~16^2~71
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cedb743f3e8db12cc76a706888792497953e93bb;p=pandora-kernel.git

bonding: don't call alb_set_slave_mac_addr() while atomic

alb_set_slave_mac_addr() sets the mac address in alb mode via
dev_set_mac_address(), which might sleep. It's called from
alb_handle_addr_collision_on_attach() in atomic context (under
read_lock(bond->lock)), thus triggering a bug.

Fix this by moving the lock inside alb_handle_addr_collision_on_attach().

v1->v2:
As Nikolay Aleksandrov noticed, we can drop the bond->lock completely.
Also, use bond_slave_has_mac(), when possible.

Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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