From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f197.google.com (mail-pf0-f197.google.com [209.85.192.197]) by kanga.kvack.org (Postfix) with ESMTP id 683926B0033 for ; Thu, 14 Sep 2017 13:53:34 -0400 (EDT) Received: by mail-pf0-f197.google.com with SMTP id y29so99773pff.6 for ; Thu, 14 Sep 2017 10:53:34 -0700 (PDT) Received: from out4435.biz.mail.alibaba.com (out4435.biz.mail.alibaba.com. [47.88.44.35]) by mx.google.com with ESMTPS id r12si4039108pgf.738.2017.09.14.10.53.31 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 14 Sep 2017 10:53:33 -0700 (PDT) Subject: Re: [PATCH 1/3] mm: slab: output reclaimable flag in /proc/slabinfo References: <1505409289-57031-1-git-send-email-yang.s@alibaba-inc.com> <1505409289-57031-2-git-send-email-yang.s@alibaba-inc.com> From: "Yang Shi" Message-ID: Date: Fri, 15 Sep 2017 01:53:13 +0800 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Christopher Lameter Cc: penberg@kernel.org, rientjes@google.com, iamjoonsoo.kim@lge.com, akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org 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 > -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org