From f4df8adc8325127ff015ef9c2a8f005edaaedd07 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Fri, 6 Dec 2013 12:30:13 -0800
Subject: [PATCH] xfs: use xfs_ilock_data_map_shared in xfs_qm_dqtobp

We might not have read in the extent list at this point, so make sure we
take the ilock exclusively if we have to do so.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
Reading git-format-patch failed