From: Al Viro <viro@ZenIV.linux.org.uk>
Subject: Re: [PATCH] export use_mm and unuse_mm for filesystem modules.
Date: Wed, 9 Dec 2009 22:45:36 +0000
Message-ID: <20091209224536.GT14381@ZenIV.linux.org.uk>
References: <4B20277B.1030903@hp.com>
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Cc: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
	LKML <linux-kernel@vger.kernel.org>, mst@redhat.com,
	linux-fsdevel <linux-fsdevel@vger.kernel.org>
To: jim owens <jowens@hp.com>
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On Wed, Dec 09, 2009 at 05:40:59PM -0500, jim owens wrote:
>
> required for btrfs directio worker threads.

Careful.  It's very easy to fsck up on biarch architectures with
that stuff.

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