linux-kernel - Re: [PATCH v2 3/3] mm/shuffle: remove dynamic reconfiguration

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Message-ID: <20200623012245.GA99806@L-31X9LVDL-1304.local>
Date:   Tue, 23 Jun 2020 09:22:45 +0800
From:   Wei Yang <richard.weiyang@...ux.alibaba.com>
To:     David Hildenbrand <david@...hat.com>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Johannes Weiner <hannes@...xchg.org>,
        Michal Hocko <mhocko@...e.com>,
        Minchan Kim <minchan@...nel.org>,
        Huang Ying <ying.huang@...el.com>,
        Wei Yang <richard.weiyang@...il.com>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Dan Williams <dan.j.williams@...el.com>
Subject: Re: [PATCH v2 3/3] mm/shuffle: remove dynamic reconfiguration

On Fri, Jun 19, 2020 at 02:59:22PM +0200, David Hildenbrand wrote:
>Commit e900a918b098 ("mm: shuffle initial free memory to improve
>memory-side-cache utilization") promised "autodetection of a
>memory-side-cache (to be added in a follow-on patch)" over a year ago.
>
>The original series included patches [1], however, they were dropped
>during review [2] to be followed-up later.
>
>Due to lack of platforms that publish an HMAT, autodetection is currently
>not implemented. However, manual activation is actively used [3]. Let's
>simplify for now and re-add when really (ever?) needed.
>
>[1] https://lkml.kernel.org/r/154510700291.1941238.817190985966612531.stgit@dwillia2-desk3.amr.corp.intel.com
>[2] https://lkml.kernel.org/r/154690326478.676627.103843791978176914.stgit@dwillia2-desk3.amr.corp.intel.com
>[3] https://lkml.kernel.org/r/CAPcyv4irwGUU2x+c6b4L=KbB1dnasNKaaZd6oSpYjL9kfsnROQ@mail.gmail.com
>
>Cc: Andrew Morton <akpm@...ux-foundation.org>
>Cc: Johannes Weiner <hannes@...xchg.org>
>Cc: Michal Hocko <mhocko@...e.com>
>Cc: Minchan Kim <minchan@...nel.org>
>Cc: Huang Ying <ying.huang@...el.com>
>Cc: Wei Yang <richard.weiyang@...il.com>
>Cc: Mel Gorman <mgorman@...hsingularity.net>
>Cc: Dan Williams <dan.j.williams@...el.com>
>Signed-off-by: David Hildenbrand <david@...hat.com>

Reviewed-by: Wei Yang <richard.weiyang@...ux.alibaba.com>

-- 
Wei Yang
Help you, Help me