linux-kernel - Re: [PATCH v3 0/3] Enable >0 order folio memory compaction

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Date: Fri, 02 Feb 2024 15:12:43 -0500
From: Zi Yan <ziy@...dia.com>
To: Luis Chamberlain <mcgrof@...nel.org>
Cc: linux-mm@...ck.org, linux-kernel@...r.kernel.org,
 "\"Huang, Ying\"" <ying.huang@...el.com>,
 Ryan Roberts <ryan.roberts@....com>,
 Andrew Morton <akpm@...ux-foundation.org>,
 "\"Matthew Wilcox (Oracle)\"" <willy@...radead.org>,
 David Hildenbrand <david@...hat.com>,
 "\"Yin, Fengwei\"" <fengwei.yin@...el.com>, Yu Zhao <yuzhao@...gle.com>,
 Vlastimil Babka <vbabka@...e.cz>,
 "\"Kirill A . Shutemov\"" <kirill.shutemov@...ux.intel.com>,
 Johannes Weiner <hannes@...xchg.org>,
 Baolin Wang <baolin.wang@...ux.alibaba.com>,
 Kemeng Shi <shikemeng@...weicloud.com>,
 Mel Gorman <mgorman@...hsingularity.net>,
 Rohan Puri <rohan.puri15@...il.com>,
 Adam Manzanares <a.manzanares@...sung.com>,
 "\"Vishal Moola (Oracle)\"" <vishal.moola@...il.com>
Subject: Re: [PATCH v3 0/3] Enable >0 order folio memory compaction

On 2 Feb 2024, at 14:55, Luis Chamberlain wrote:

> On Fri, Feb 02, 2024 at 11:15:51AM -0500, Zi Yan wrote:
>> From: Zi Yan <ziy@...dia.com>
>>
>> Hi all,
>>
>> This patchset enables >0 order folio memory compaction, which is one of
>> the prerequisitions for large folio support[1].
>>
>> [1] https://lore.kernel.org/linux-mm/20230912162815.440749-1-zi.yan@sent.com/
>
> This URL started being referenced to your patch series instead of the
> rationale as to why this is important, and that is that compaction today
> skips pages with order > 0 and that this is already a problem for the
> page cache. The correct URL which you had in your *first* cover letter
> is:
>
> https://lore.kernel.org/linux-mm/f8d47176-03a8-99bf-a813-b5942830fd73@arm.com/

You are right. Thank you for correcting it.

--
Best Regards,
Yan, Zi

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