From b9e06ef2e8706fe669b51f4364e3aeed58639eb2 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Tue, 13 Nov 2012 16:34:17 +0100
Subject: [PATCH] reiserfs: Protect reiserfs_quota_on() with write lock

In reiserfs_quota_on() we do quite some work - for example unpacking
tail of a quota file. Thus we have to hold write lock until a moment
we call back into the quota code.

CC: stable@vger.kernel.org # >= 3.0
Signed-off-by: Jan Kara <jack@suse.cz>
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