From: Christoffer Dall <cdall@cs.columbia.edu>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-mm <linux-mm@kvack.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Christoph Lameter <cl@linux.com>,
Steve Capper <steve.capper@arm.com>,
Will Deacon <will.deacon@arm.com>,
Andrea Arcangeli <arcange@redhat.com>
Subject: Re: [PATCH] mm: Fix PageHead when !CONFIG_PAGEFLAGS_EXTENDED
Date: Fri, 28 Dec 2012 17:20:58 -0500 [thread overview]
Message-ID: <CAEDV+gJV+90jUQgc5iEotUXMVhx5PYv8zWsUHzKFLpj-8uxQ5A@mail.gmail.com> (raw)
In-Reply-To: <CA+55aFzaQqe4YEqfJVxwUPW8RyrwZKGzQz6ieFKO_UU=yrnPVA@mail.gmail.com>
On Fri, Dec 28, 2012 at 5:01 PM, Linus Torvalds
<torvalds@linux-foundation.org> wrote:
> On Fri, Dec 28, 2012 at 9:07 AM, <c.dall@virtualopensystems.com> wrote:
>> From: Christoffer Dall <cdall@cs.columbia.edu>
>>
>> Unfortunately with !CONFIG_PAGEFLAGS_EXTENDED, (!PageHead) is false, and
>> (PageHead) is true, for tail pages. This breaks cache cleaning on some
>> ARM systems, and may cause other bugs.
>
> So this already got committed earlier as commit ad4b3fb7ff99 ("mm: Fix
> PageHead when !CONFIG_PAGEFLAGS_EXTENDED")
>
> Linus
Sorry about the noise then, thanks.
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prev parent reply other threads:[~2012-12-28 22:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-28 17:07 c.dall
2012-12-28 17:18 ` [PATCH v2] " cdall
2012-12-28 22:01 ` [PATCH] " Linus Torvalds
2012-12-28 22:20 ` Christoffer Dall [this message]
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