From: Christoph Hellwig <hch@lst.de>
Date: Mon, 19 Jan 2009 01:03:19 +0000 (+0100)
Subject: xfs: lockdep annotations for xfs_dqlock2
X-Git-Tag: v2.6.29-rc3~44^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4f2d4ac6e5eb7d72e8df7f3fbf67a78dab8b91cf;p=pandora-kernel.git

xfs: lockdep annotations for xfs_dqlock2

xfs_dqlock2 locks two xfs_dquots, which is fine as it always locks the
dquot with the lower id first.  Use mutex_lock_nested to tell lockdep
about this fact.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
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