linux-kernel - Re: [PATCH v2 4/5] hugetlb: convert PageHugeTemporary() to HPageTemporary flag

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Message-ID: <25c437c9-cb99-e7fd-e657-48e77b4c63e9@oracle.com>
Date:   Wed, 20 Jan 2021 10:14:30 -0800
From:   Mike Kravetz <mike.kravetz@...cle.com>
To:     Oscar Salvador <osalvador@...e.de>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        Michal Hocko <mhocko@...nel.org>,
        Naoya Horiguchi <n-horiguchi@...jp.nec.com>,
        Muchun Song <songmuchun@...edance.com>,
        David Hildenbrand <david@...hat.com>,
        Matthew Wilcox <willy@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v2 4/5] hugetlb: convert PageHugeTemporary() to
 HPageTemporary flag

On 1/20/21 2:09 AM, Oscar Salvador wrote:
> On Tue, Jan 19, 2021 at 05:30:48PM -0800, Mike Kravetz wrote:
>> Use new hugetlb specific HPageTemporary flag to replace the
>> PageHugeTemporary() interfaces.
>>
>> Signed-off-by: Mike Kravetz <mike.kravetz@...cle.com>
> 
> I would have added a brief comment explaining why it is ok to drop
> the PageHuge() check in PageHugeTemporary.
> AFAICS, the paths checking it already know they are handling with a 
> hugetlb page, but still it is better to mention it in the changelog
> in case someone wonders.

Thanks.

Since I have to do another version, I will add this.

-- 
Mike Kravetz