From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id E0507C433F5 for ; Thu, 16 Dec 2021 22:54:00 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 16F0C6B0071; Thu, 16 Dec 2021 17:53:50 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 11ED56B0073; Thu, 16 Dec 2021 17:53:50 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 00D976B0074; Thu, 16 Dec 2021 17:53:49 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id E67306B0071 for ; Thu, 16 Dec 2021 17:53:49 -0500 (EST) Received: from smtpin14.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id AC8D9181AC212 for ; Thu, 16 Dec 2021 22:53:39 +0000 (UTC) X-FDA: 78925160958.14.1CDE4A9 Received: from ms.lwn.net (ms.lwn.net [45.79.88.28]) by imf31.hostedemail.com (Postfix) with ESMTP id D77DB2001A for ; Thu, 16 Dec 2021 22:53:31 +0000 (UTC) Received: from localhost (unknown [IPv6:2601:281:8300:104d::5f6]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ms.lwn.net (Postfix) with ESMTPSA id 70C6A740; Thu, 16 Dec 2021 22:53:37 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 ms.lwn.net 70C6A740 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lwn.net; s=20201203; t=1639695217; bh=NXX/Lz87ap+4ILofsJe99zKcovJCoPqQXL8CAuKOyb4=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=PK05iQ/ApujTC8PKEUMIWI/pVWRhUdMyk9tueHxP1MMTKS1iuXhCk0QPd5vn3MWJn 0BMfXOAUhuYoq+DRx6RSUyXXjbznFHuAF4G2ye2UhLEW8U/+W6bqsUZQU3xgRxt9Ez e/IgWU8lXPxj+h+xCO3VyeR0DBT3LADQyccBt6nnzVYn2KkV1jrUVvwIMAbXfIYPw6 cLTnoReMj6QuhIO7V2zzXOCAQjDaCOwMeOmyc6a40v6rOu5XCBoECQBlqlYP+4boU/ P/IglGYjx0LK5G/0q7wp77XCU58gz8+GLSgzExnPgyD5mbgm7T2jhD7wpUmhCYjgGk 7oOXk3s2NOExQ== From: Jonathan Corbet To: David Hildenbrand , Matthew Wilcox , Anssi Hannula Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH] docs/vm: clarify overcommit amount sysctl behavior In-Reply-To: References: <20211211194159.3137362-1-anssi.hannula@iki.fi> Date: Thu, 16 Dec 2021 15:53:36 -0700 Message-ID: <8735msduvj.fsf@meer.lwn.net> MIME-Version: 1.0 Content-Type: text/plain X-Stat-Signature: mpuqcq53wyigcuwu6zjuyonix5nn4hcu X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: D77DB2001A Authentication-Results: imf31.hostedemail.com; dkim=pass header.d=lwn.net header.s=20201203 header.b="PK05iQ/A"; spf=pass (imf31.hostedemail.com: domain of corbet@lwn.net designates 45.79.88.28 as permitted sender) smtp.mailfrom=corbet@lwn.net; dmarc=none X-HE-Tag: 1639695211-297432 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: David Hildenbrand writes: > On 11.12.21 23:21, Matthew Wilcox wrote: >> On Sat, Dec 11, 2021 at 09:41:59PM +0200, Anssi Hannula wrote: >>> Documentation/vm/overcommit-accounting.rst says that the overcommit >>> amount can be set via vm.overcommit_ratio and vm.overcommit_kbytes. >>> >>> Add a clarification that those only take effect in overcommit handling >>> mode 2 ("Don't overcommit"), i.e. they do not act as an "additional" >>> limit that is always enforced. >>> >>> Signed-off-by: Anssi Hannula >>> --- >> >> Simple and clear improvement, IMO. Cc'ing linux-mm to get more eyes on >> it. > > As I had the same idea to just make this clearer in the context of > advanced documentation for virtio-mem, so I approve :) > > Reviewed-by: David Hildenbrand Applied, thanks. jon