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 69E7EC28B2F for ; Mon, 17 Mar 2025 01:12:19 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id A8435280003; Sun, 16 Mar 2025 21:12:17 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id A0C57280001; Sun, 16 Mar 2025 21:12:17 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 8ADED280003; Sun, 16 Mar 2025 21:12:17 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id 695C4280001 for ; Sun, 16 Mar 2025 21:12:17 -0400 (EDT) Received: from smtpin19.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay01.hostedemail.com (Postfix) with ESMTP id 5D0401C8D02 for ; Mon, 17 Mar 2025 01:12:18 +0000 (UTC) X-FDA: 83229267156.19.E34EAFE Received: from nyc.source.kernel.org (nyc.source.kernel.org [147.75.193.91]) by imf11.hostedemail.com (Postfix) with ESMTP id AF10840003 for ; Mon, 17 Mar 2025 01:12:16 +0000 (UTC) Authentication-Results: imf11.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=DnQ3qMY8; dmarc=none; spf=pass (imf11.hostedemail.com: domain of akpm@linux-foundation.org designates 147.75.193.91 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1742173936; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=TSpUKkX7Twx4mSB0pLZy4rlvDVooj/WB+sc08QirWtU=; b=co9HVHfrtt6Nak4BZ++cv7UHp8sbuRpgTeaYW3AMUdN56CPj8esd51N05cKITfoFlDXwCB Z77tORCmFOwc5qpwVt0l2zGPqDlXVCPaMmE2RIEfYivBk2Bmk4dIW2Wrdm+c7kW6MN4q83 bEfOET+u/gehAJ2H7Rnt+DKFRFJh1mE= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1742173936; a=rsa-sha256; cv=none; b=cS/RQWL1roOoJlXls9Nm9YapHidbExZNjPiaaXik8zZqs8DnJQmeg/RCkQKbU/V7ExWW7S fs3lb+yz0NmbVbrKyctbPaTdq13lW8KVji+I+cmxPFOQ+cs0IfU4ZbnlZLsIudPpUFFe5Y A2SoIM2A9rd1v/oKQCrKPlhObMgvIMA= ARC-Authentication-Results: i=1; imf11.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=DnQ3qMY8; dmarc=none; spf=pass (imf11.hostedemail.com: domain of akpm@linux-foundation.org designates 147.75.193.91 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 573C5A48CD7; Mon, 17 Mar 2025 01:06:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 515B8C4CEE9; Mon, 17 Mar 2025 01:12:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1742173935; bh=9y4sD9Cw4eyXxkh5JX9TsNdK0e8fgFEbpeL3YGHyIWo=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=DnQ3qMY8orU8ma1/CRFzbAkQpsin7NchoJEopWxFLPHMgsz3YQdl2Kqahr9ovtrq9 RHPdIJJB+rtyQuVe3p14bG4d3aHE0jJ8tXnsizsTEZw1aIHHqNAmP5v3IEM0amnKUX gb9KbHMlifLfqOtE+rdMqcWBBlYrJAlLB6mjCiQo= Date: Sun, 16 Mar 2025 18:12:14 -0700 From: Andrew Morton To: Johannes Weiner Cc: Shakeel Butt , Michal =?ISO-8859-1?Q?Koutn=FD?= , Roman Gushchin , "T.J. Mercier" , Tejun Heo , Michal Hocko , Muchun Song , linux-mm@kvack.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, Meta kernel team Subject: Re: [PATCH] memcg: add hierarchical effective limits for v2 Message-Id: <20250316181214.704966dd41abccab249e11dc@linux-foundation.org> In-Reply-To: <20250227035155.GA110982@cmpxchg.org> References: <20250205222029.2979048-1-shakeel.butt@linux.dev> <5jwdklebrnbym6c7ynd5y53t3wq453lg2iup6rj4yux5i72own@ay52cqthg3hy> <20250210225234.GB2484@cmpxchg.org> <20250227035155.GA110982@cmpxchg.org> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: AF10840003 X-Stat-Signature: 93uc6w7g8f1m8bnoed3hx789u6ynfh5d X-HE-Tag: 1742173936-605703 X-HE-Meta: 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 rBA/9ote WHfB+hZ69Jh9UhZE2bcA6BKdhIkkjWdoEkjPmInar6OqaxJfT8j/UNdhBo1Qam5F4qZabNAT+zvACdQOhJgxppPitmzUKy+ysBJCSrfk3++W6/QZNVpGIi/5mmL8kzIx2IQemDyGqBbEdWhD1LYap3dLIBu+NCwZE3MZgJAEOHKxKfGSBWIOSG1CafHFT6XxMYGPwF1eZ/4rLtm2HeG2tFVp+FokmM9FbXwwaJwlyqcqw9sSWdA8hjGQvADfYv8q+W9t7h76VlzweCRkV6ipS5yPDXfPFrVML9loCZFwDZnOatE09Lif+WxYCoA== 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: List-Subscribe: List-Unsubscribe: On Wed, 26 Feb 2025 22:51:55 -0500 Johannes Weiner wrote: > > > start only with memory.max as > > > that has some usecases). > > > > Yes, I can link [2] with more info added to the commit message. > > > > Johannes, do you want effective interface for low and min as well or for > > now just keep the current targeted interfaces? > > I think it would make sense to do min, low, high, max for memory in > one go, as a complete new feature, rather than doing them one by one. > > Tejun, what's your take on this, considering other controllers as > well? Does that seem like a reasonable solution to address the "I'm in > a namespace and can't see my configuration" problem? I guess Tejun missed this. It seems that more think time is needed on this patch?