tree 821d74c2055ebbc8070db1e881762bcc805e90a5
parent 080dda7f5e8e8df95bcd17a5345c276e365a2054
author Christoph Hellwig <hch@lst.de> 1232326999 +0100
committer Lachlan McIlroy <lachlan@sgi.com> 1232336692 +1100

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>