From: Eric W. Biederman <ebiederm@xmission.com>
Date: Wed, 13 May 2009 17:01:51 +0000 (+0000)
Subject: net: Fix ipoib rtnl_lock sysfs deadlock.
X-Git-Tag: v2.6.31-rc1~330^2~363
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=26574401fef6766f6c3ca25b5c13febe662d2a32;p=pandora-kernel.git

net: Fix ipoib rtnl_lock sysfs deadlock.

Network device sysfs files that grab the rtnl_lock unconditionally
will deadlock if accessed when the network device is being
unregistered.  So use trylock and syscall_restart to avoid this
deadlock.

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

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