From: Amerigo Wang <amwang@redhat.com>
Date: Wed, 31 Mar 2010 21:30:52 +0000 (+0000)
Subject: bonding: fix potential deadlock in bond_uninit()
X-Git-Tag: v2.6.34-rc4~64^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9e2e61fbf8ad016d24e4af0afff13505f3dd2a2a;p=pandora-kernel.git

bonding: fix potential deadlock in bond_uninit()

bond_uninit() is invoked with rtnl_lock held, when it does destroy_workqueue()
which will potentially flush all works in this workqueue, if we hold rtnl_lock
again in the work function, it will deadlock.

So move destroy_workqueue() to destructor where rtnl_lock is not held any more,
suggested by Eric.

Signed-off-by: WANG Cong <amwang@redhat.com>
Cc: Jay Vosburgh <fubar@us.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: Jiri Pirko <jpirko@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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