From: Eric W. Biederman <ebiederm@xmission.com>
Date: Wed, 13 May 2009 17:02:50 +0000 (+0000)
Subject: net: FIX bonding sysfs rtnl_lock deadlock
X-Git-Tag: v2.6.31-rc1~330^2~362
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=496a60cdcd5d0d884dddf6c3b4ea912923a70f13;p=pandora-kernel.git

net: FIX bonding sysfs rtnl_lock deadlock

Sysfs files for a network device can not unconditionally take the
rtnl_lock as the bonding sysfs files do.  If someone accesses those
sysfs files while the network device is being unregistered with the
rtnl_lock held we will deadlock.

So use trylock and restart_syscall to avoid this problem.

Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

Reading git-diff-tree failed