linux-kernel - Re: [PATCH 1/3] mm: slab: output reclaimable flag in /proc/slabinfo

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Message-ID: <baa5a2e5-9a20-3baa-2156-3d00c2445541@alibaba-inc.com>
Date:   Fri, 15 Sep 2017 01:53:13 +0800
From:   "Yang Shi" <yang.s@...baba-inc.com>
To:     Christopher Lameter <cl@...ux.com>
Cc:     penberg@...nel.org, rientjes@...gle.com, iamjoonsoo.kim@....com,
        akpm@...ux-foundation.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] mm: slab: output reclaimable flag in /proc/slabinfo



On 9/14/17 10:27 AM, Christopher Lameter wrote:
> Well /proc/slabinfo is a legacy interface. The infomation if a slab is
> reclaimable is available via the slabinfo tool. We would break a format
> that is relied upon by numerous tools.

Thanks for pointing this out. It would be unacceptable if it would break 
the backward compatibility.

A follow-up question is do we know what tools rely on the slabinfo format?

 From my point of view, although /proc/slabinfo is legacy, it sounds it 
is still used very often by the users.

Thanks,
Yang

>