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 B7946C433F5 for ; Thu, 26 May 2022 01:53:54 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 112778D0005; Wed, 25 May 2022 21:53:54 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 0C51B8D0001; Wed, 25 May 2022 21:53:54 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id EF1C88D0005; Wed, 25 May 2022 21:53:53 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id E167D8D0001 for ; Wed, 25 May 2022 21:53:53 -0400 (EDT) Received: from smtpin30.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id B958C203CF for ; Thu, 26 May 2022 01:53:53 +0000 (UTC) X-FDA: 79506223146.30.AF2B9A3 Received: from mail-pj1-f42.google.com (mail-pj1-f42.google.com [209.85.216.42]) by imf30.hostedemail.com (Postfix) with ESMTP id 110D080007 for ; Thu, 26 May 2022 01:53:22 +0000 (UTC) Received: by mail-pj1-f42.google.com with SMTP id gz24so531889pjb.2 for ; Wed, 25 May 2022 18:53:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20210112.gappssmtp.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=2pxcPCM5VX3sDe5qyFbWo9KsQkuEix+lNtMfCJKnED8=; b=5FR6mDsGsdcRK/I2zLo0w4AmRmztswHxOMlOghEitUIUoFhbADRYuzTLEQOf1nH0ae kaBCxEXhH1e39HsFefV5KmXovUyqB9ZwSqz6pd0qlA1lj2z8Jg/wU1ozt74F2qYbNAZj m63WUwjKmvePg7TjRroTXI6TC2DsdWOCr8bpTkmIrzgpSoCsv1DCodVMB37ZJQLlRvc7 yi7w0mLdNpHijHwKxwLJMpwieN/kVBttxwPW5S5CTNG8Rp9ESGT9wK7YnN9kADCpN+A8 WL+U47BRmXfRDAoXnxUo1T6Mm6WwQTHpv7u4PSzkqM7Y3jSZh9CIz6DcbAaxzhFN4OQN CsMA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=2pxcPCM5VX3sDe5qyFbWo9KsQkuEix+lNtMfCJKnED8=; b=DQ49ngAgy/jIi/TAWU37gARcNPgN9ILtt0ecPytiAFglCD9FN4FQ+V5UVsXo0Rb/ZV +v385DXXOmsHIObIAx7rR5U6v5P+WeCqy+ke3Un1ppdcUtuxMQJbnWWstD0p4X8NSqCO LdWYW2SaNLBj1HMJ9GvrHDMlYpftv6AUAsIOSuJWBER3f3rbypJgLuB7/To5CIqOlCLO apQ1Hzd5MOBLclGepjFKmTjOUBtbcMbiSNMhGx7hP49B7Ir8pMCh8jr411SsKTxxp9wI 0YOW3MaFOl5WOlT1oBHTGsp21eHAFIE4nD8/fYu3v/MmvYa2VYXDkw+tY4ylb+73T6YV Fd6Q== X-Gm-Message-State: AOAM533OWdqnuQc9sVxzXXn0ToNENaerUGrVVZlJY9DvlbLLiwmi2y2v HUVmiAE1tOIqnZL0/QemwpISBg== X-Google-Smtp-Source: ABdhPJxLVXYPbhDTW6AtuaVmmhyNvqcx7+jSSXywyFBxJNlDjtHcVlRLEq4+CwmtINLsa++1kLB5vg== X-Received: by 2002:a17:902:b703:b0:158:2667:7447 with SMTP id d3-20020a170902b70300b0015826677447mr35269851pls.92.1653530031588; Wed, 25 May 2022 18:53:51 -0700 (PDT) Received: from localhost ([2408:8207:18da:2310:c40c:3e14:bb57:48be]) by smtp.gmail.com with ESMTPSA id 65-20020a620644000000b0050dc7628166sm68190pfg.64.2022.05.25.18.53.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 May 2022 18:53:51 -0700 (PDT) Date: Thu, 26 May 2022 09:53:47 +0800 From: Muchun Song To: Roman Gushchin Cc: Andrew Morton , linux-mm@kvack.org, Dave Chinner , linux-kernel@vger.kernel.org, Kent Overstreet , Hillf Danton , Christophe JAILLET Subject: Re: [PATCH v4 1/6] mm: memcontrol: introduce mem_cgroup_ino() and mem_cgroup_get_from_ino() Message-ID: References: <20220525202600.2910982-1-roman.gushchin@linux.dev> <20220525202600.2910982-2-roman.gushchin@linux.dev> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220525202600.2910982-2-roman.gushchin@linux.dev> X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 110D080007 X-Stat-Signature: nijrinkhkdsztjssm74dcmsdkuggcy8a Authentication-Results: imf30.hostedemail.com; dkim=pass header.d=bytedance-com.20210112.gappssmtp.com header.s=20210112 header.b=5FR6mDsG; spf=pass (imf30.hostedemail.com: domain of songmuchun@bytedance.com designates 209.85.216.42 as permitted sender) smtp.mailfrom=songmuchun@bytedance.com; dmarc=pass (policy=none) header.from=bytedance.com X-Rspam-User: X-HE-Tag: 1653530002-385579 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: On Wed, May 25, 2022 at 01:25:55PM -0700, Roman Gushchin wrote: > Shrinker debugfs requires a way to represent memory cgroups without > using full paths, both for displaying information and getting input > from a user. > > Cgroup inode number is a perfect way, already used by bpf. > > This commit adds a couple of helper functions which will be used > to handle memcg-aware shrinkers. > > Signed-off-by: Roman Gushchin Acked-by: Muchun Song Thanks.