linux-kernel - Re: [PATCH] memory tier, sysfs: rename attribute "nodes" to "nodelist"

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Message-Id: <20221020184735.aaddd0899bad4f0bb796ebde@linux-foundation.org>
Date:   Thu, 20 Oct 2022 18:47:35 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Huang Ying <ying.huang@...el.com>
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        "Aneesh Kumar K . V" <aneesh.kumar@...ux.ibm.com>,
        Alistair Popple <apopple@...dia.com>,
        Bharata B Rao <bharata@....com>,
        Dan Williams <dan.j.williams@...el.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Davidlohr Bueso <dave@...olabs.net>,
        Hesham Almatary <hesham.almatary@...wei.com>,
        Jagdish Gediya <jvgediya.oss@...il.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Michal Hocko <mhocko@...nel.org>,
        Tim Chen <tim.c.chen@...el.com>, Wei Xu <weixugc@...gle.com>,
        Yang Shi <shy828301@...il.com>
Subject: Re: [PATCH] memory tier, sysfs: rename attribute "nodes" to
 "nodelist"

On Thu, 20 Oct 2022 09:51:22 +0800 Huang Ying <ying.huang@...el.com> wrote:

> In sysfs, we use attribute name "cpumap" or "cpus" for cpu mask and
> "cpulist" or "cpus_list" for cpu list.  For example, in my system,
> 
>  $ cat /sys/devices/system/node/node0/cpumap
>  f,ffffffff
>  $ cat /sys/devices/system/cpu/cpu2/topology/core_cpus
>  0,00100004
>  $ cat cat /sys/devices/system/node/node0/cpulist
>  0-35
>  $ cat /sys/devices/system/cpu/cpu2/topology/core_cpus_list
>  2,20
> 
> It looks reasonable to use "nodemap" for node mask and "nodelist" for
> node list.  So, rename the attribute to follow the naming convention.

I'll add

Fixes: 9832fb87834e2b ("mm/demotion: expose memory tier details via sysfs")

to this to reduce the risk that someone will backport 9832fb87834e2b
but will miss this alteration.