From: David Gibson <david@gibson.dropbear.id.au>
To: akpm@linux-foundation.org, abarry@cray.com
Cc: hughd@google.com, mgorman@suse.de, minchan.kim@gmail.com, paulus@samba.org,
        linux-kernel@vger.kernel.org
Subject: Hugepage cleanup and bugfix
Date: Thu, 16 Feb 2012 15:23:58 +1100
Message-Id: <1329366240-11663-1-git-send-email-david@gibson.dropbear.id.au>
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 687
Lines: 16

Hi, this is a revised version of Andrew Barry's fix for the hugepage
race between unmount and quota update.  In fact it's not just that
race which is a problem, it's a more general use-after-free problem on
fs inodes from the hugepage code.

Despite all the abstract talk in the patch comments about layering
violations, this fixes a real, exploitable, crash bug which has been
in the kernel for a very long time now.

Andrew, please apply.

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