Received: by 2002:a05:6a10:16a7:0:0:0:0 with SMTP id gp39csp115245pxb; Wed, 18 Nov 2020 18:16:41 -0800 (PST) X-Google-Smtp-Source: ABdhPJyjfMfsTgf+0zpP2ZYpWa/6Y2TGQ05dB6tH8eBoVTkpTdfoXDAdzPXV1zBy9JoDdeSUkhNA X-Received: by 2002:a17:906:bcf9:: with SMTP id op25mr25764340ejb.223.1605752201585; Wed, 18 Nov 2020 18:16:41 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1605752201; cv=none; d=google.com; s=arc-20160816; b=ftXowfjeRSnLjwd+GAV6AKkv64SVBk7sdef79Qk6BiW69ZdqQhsNi08/sl3wBgEjIM w+7oamMPv8OKo7oBuhTfCFD6TE83qDBAwl5T6Mrd99HAkt2ktYZDFSkt//L0Ma4yQgoJ uZ5VJz147KA89/ZmxmMWNmhjrcMU8SspmNMjR127aEbYs3RBezrLXDOZGYq3dQuSuhX7 PR7pr/mF2qcNnS287kWYpyFv+2ZxI9Fr0d7rK7zjnXqm+Uk+SbFaftj8nOtJn4WfxJWU xi6gu9qgnmd2nJmn+q669d3AA37ffMuqlPECUnyvl17VUvYN3zpte0Syzcse5F0INYz5 5Otw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:in-reply-to :mime-version:user-agent:date:message-id:from:references:cc:to :subject; bh=+U38BJiFnCOoT9TbqrrMrOlnbwUNDBpJDVfCVS0F1sc=; b=ntHX1VAeXHKCb44l5rwlqpxCmlAgj01Q+2sNW1sgeeR91mk/W/xq4d/ocqYYVWiepX jWL3Y2EHDbQADfhqsCR7KH325HN3MhCjT5CrHlnakfVTDFbTPtYaamD/qeSfeSWpd5w3 32vQIUcWuXYH1w1sqX+Z6FuGyBWT5VpNK6vyODzyIKxgNtNFZBrSsc7sA0zfekxghGjV oqbUuEFSIOQ65UXvkGmiiBBakLN1CgcQKBqmKqISK0tQ0KFAKY8zwnunUK3SIvBTAfrm Y7qYxdWGDZQIrBK28vLkxX/F4D2x5g4IP6g2L/WQPnIGCQois15S3tYJsSHys/INQXtr H4Tg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id c19si1428147edw.66.2020.11.18.18.16.18; Wed, 18 Nov 2020 18:16:41 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727202AbgKSCMI (ORCPT + 99 others); Wed, 18 Nov 2020 21:12:08 -0500 Received: from out30-44.freemail.mail.aliyun.com ([115.124.30.44]:45256 "EHLO out30-44.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726243AbgKSCMH (ORCPT ); Wed, 18 Nov 2020 21:12:07 -0500 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R151e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e01424;MF=alex.shi@linux.alibaba.com;NM=1;PH=DS;RN=8;SR=0;TI=SMTPD_---0UFqkO0o_1605751923; Received: from IT-FVFX43SYHV2H.local(mailfrom:alex.shi@linux.alibaba.com fp:SMTPD_---0UFqkO0o_1605751923) by smtp.aliyun-inc.com(127.0.0.1); Thu, 19 Nov 2020 10:12:04 +0800 Subject: Re: [PATCH] docs/vm: remove unused 3 items explanation for /proc/vmstat To: Jonathan Corbet Cc: Andrew Morton , Yang Shi , "Kirill A. Shutemov" , David Rientjes , Zi Yan , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org References: <1605520282-51993-1-git-send-email-alex.shi@linux.alibaba.com> <20201118134629.31b3cdf8@lwn.net> From: Alex Shi Message-ID: <4e4931f5-ee46-98c2-38f2-3e8d1f515b44@linux.alibaba.com> Date: Thu, 19 Nov 2020 10:10:29 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 In-Reply-To: <20201118134629.31b3cdf8@lwn.net> Content-Type: text/plain; charset=gbk Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ?? 2020/11/19 ????4:46, Jonathan Corbet ะด??: > On Mon, 16 Nov 2020 17:51:22 +0800 > Alex Shi wrote: > >> Commit 5647bc293ab1 ("mm: compaction: Move migration fail/success >> stats to migrate.c"), removed 3 items in /proc/vmstat. but the docs >> still has their explanation. let's remove them. >> >> "compact_blocks_moved", >> "compact_pages_moved", >> "compact_pagemigrate_failed", > > So a quick look says that the above-mentioned patch didn't remove those > three items; two of them were, instead, renamed. Rather than just taking > out the old information, it seems we should actually update it to reflect > current reality? > I thought about the replacement, but there are couple of migration events have no explanation: #ifdef CONFIG_MIGRATION "pgmigrate_success", "pgmigrate_fail", "thp_migration_success", "thp_migration_fail", "thp_migration_split", #endif It's better to fill them together, also change current explanation accordinglly. but I'm not so confident on this now... Thanks Alex