linux-kernel - Re: [PATCH 3/5] hugetlb: update_and_free_page(): don't clear PG

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Message-ID: <20140408171108.4faf41b7@redhat.com>
Date:	Tue, 8 Apr 2014 17:11:08 -0400
From:	Luiz Capitulino <lcapitulino@...hat.com>
To:	"Kirill A. Shutemov" <kirill@...temov.name>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	mtosatti@...hat.com, aarcange@...hat.com, mgorman@...e.de,
	akpm@...ux-foundation.org, andi@...stfloor.org, davidlohr@...com,
	rientjes@...gle.com, isimatu.yasuaki@...fujitsu.com,
	yinghai@...nel.org, riel@...hat.com, n-horiguchi@...jp.nec.com
Subject: Re: [PATCH 3/5] hugetlb: update_and_free_page(): don't clear
 PG_reserved bit

On Tue, 8 Apr 2014 23:51:26 +0300
"Kirill A. Shutemov" <kirill@...temov.name> wrote:

> On Tue, Apr 08, 2014 at 03:02:18PM -0400, Luiz Capitulino wrote:
> > Hugepages pages never get the PG_reserved bit set, so don't clear it. But
> > add a warning just in case.
> 
> I don't think WARN_ON() is needed. PG_reserved will be catched by
> free_pages_check().

Correct. I'll drop it.
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