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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 03769C433EF for ; Thu, 26 May 2022 01:53:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344810AbiEZBx4 (ORCPT ); Wed, 25 May 2022 21:53:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36466 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344786AbiEZBxx (ORCPT ); Wed, 25 May 2022 21:53:53 -0400 Received: from mail-pj1-x102d.google.com (mail-pj1-x102d.google.com [IPv6:2607:f8b0:4864:20::102d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0CBE9A7769 for ; Wed, 25 May 2022 18:53:52 -0700 (PDT) Received: by mail-pj1-x102d.google.com with SMTP id z11so521270pjc.3 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=zvZhHblNgERf9RAefRnGZTn0qSBAz8OGFBK+rdCjbMRD0EiV9jhV0vpMdBLcC6sZeU aA0pqP+A5hT3i+ZsBjSp3XJHPHhhXWQMwjTGNBhTUD9vNFUilm6aBJt1OcnnwrciVhPM 01BjZqgD4CsDzSlcpS9sKAus7RlLLD4jP7mlYCBxKiEFB2Ql6yqP1mQstRHzBv3JRRGa rb7x+/Kv9nZi4Y6zsZ6g919N4KFKf3NDuXayLBIusRs7NV7mEZo+Cr6r99F8g4tmMwTB sf8Qe3QJe1FDyDFWDTKlZkqoOa7QFKy6DYCE+RwgNTrVMnLfCLHyxmuZZFOsJ1nK0SF6 prXg== X-Gm-Message-State: AOAM533GgkOYxi6qe2M4VnwgsiInf36tOd7dmTcqB7n/CCYoQahSLhn5 6KJSDbz0r/UwdQjI6eZA8H+AhQ== 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> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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.