linux-kernel - Re: Fix refcounting in hugetlbfs quota handling

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Message-ID: <CAEwNFnB+5DZQw0CrfkcdP_rd5FBM6fw26=_yS3P283a9TKLNiw@mail.gmail.com>
Date:	Fri, 12 Aug 2011 13:34:17 +0900
From:	Minchan Kim <minchan.kim@...il.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Avi Kivity <avi@...hat.com>, Marcelo Tosatti <mtosatti@...hat.com>,
	Jan Kiszka <jan.kiszka@....de>, qemu-devel@...gnu.org,
	agraf@...e.de, kvm <kvm@...r.kernel.org>,
	Paul Mackerras <paulus@...ba.org>,
	linux-kernel@...r.kernel.org, Hugh Dickins <hughd@...gle.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Mel Gorman <mgorman@...e.de>, Andrew Hastings <abh@...y.com>,
	Adam Litke <agl@...ibm.com>
Subject: Re: Fix refcounting in hugetlbfs quota handling

On Fri, Aug 12, 2011 at 9:48 AM, Linus Torvalds
<torvalds@...ux-foundation.org> wrote:
> On Wed, Aug 10, 2011 at 11:40 PM, David Gibson
> <david@...son.dropbear.id.au> wrote:
>>
>> This patch, therefore, stores a pointer to the inode instead of the
>> address_space in the page private data for hugepages.  More
>> importantly it correctly adjusts the reference count on the inodes
>> when they're added to the page private data.  This ensures that the
>> inode (and therefore the super block) will not be freed before we use
>> it from free_huge_page.
>
> Looks sane, but I *really* want some acks from people who use/know
> hugetlbfs. Who would that be? I'm adding random people who have
> acked/signed-off patches to hugetlbfs recently..

At least, code itself looks good to me but your random choice was failed.
Maybe people you want are as follows.
http://marc.info/?t=126928975800003&r=1&w=2

Ccing right persons.

-- 
Kind regards,
Minchan Kim
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