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Date: Tue, 11 Dec 2007 19:00:39 -0500
From: Chuck Ebbert <cebbert@redhat.com>
Organization: Red Hat
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To: Hugh Dickins <hugh@veritas.com>
CC: Linus Torvalds <torvalds@linux-foundation.org>,
       Andrew Morton <akpm@linux-foundation.org>,
       Willy Tarreau <wtarreau@hera.kernel.org>, Adrian Bunk <bunk@kernel.org>,
       stable@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] tmpfs: restore missing clear_highpage
References: <Pine.LNX.4.64.0711281844370.25292@blonde.wat.veritas.com>
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On 11/28/2007 01:55 PM, Hugh Dickins wrote:
> tmpfs was misconverted to __GFP_ZERO in 2.6.11.  There's an unusual case in
> which shmem_getpage receives the page from its caller instead of allocating.
> We must cover this case by clear_highpage before SetPageUptodate, as before.
> 
> Signed-off-by: Hugh Dickins <hugh@veritas.com>
> ---

What are the symptoms of the bug this fixes?