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 78A9AC433EF for ; Tue, 11 Jan 2022 03:13:22 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id E875F6B0072; Mon, 10 Jan 2022 22:13:21 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id E0E3A6B0073; Mon, 10 Jan 2022 22:13:21 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id CAE5A6B0074; Mon, 10 Jan 2022 22:13:21 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0065.hostedemail.com [216.40.44.65]) by kanga.kvack.org (Postfix) with ESMTP id B78866B0072 for ; Mon, 10 Jan 2022 22:13:21 -0500 (EST) Received: from smtpin12.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 6D768951B6 for ; Tue, 11 Jan 2022 03:13:21 +0000 (UTC) X-FDA: 79016535402.12.602C95E Received: from mail-yb1-f182.google.com (mail-yb1-f182.google.com [209.85.219.182]) by imf04.hostedemail.com (Postfix) with ESMTP id 9E9C940009 for ; Tue, 11 Jan 2022 03:13:20 +0000 (UTC) Received: by mail-yb1-f182.google.com with SMTP id c6so41520986ybk.3 for ; Mon, 10 Jan 2022 19:13:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20210112.gappssmtp.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=vePxboaj5Wzxcx+RQdgsE8w7bUmtQir6BsCsMhN8f0c=; b=ieCdWrzviTyUE7447aiXEbq7Rt8+vOuuPSLhn3BqOqU1oZG6sXDX+a7WFqsctJHyaA ftggmDSC1l1LOiLOUfTt2HTtmCfX0IqGvhiX6E2oNnaL92Sp4+6ZLshokZq+F/IQrxBP Y4Lbi8/N8rSslC2ktHdn5M8vuK4gWImnoyQ4xHxJWv7xOjIR8K3d0eq52b8qSDlk5nRS UeJiPGwXFKD3ErfN1RYhYXXyjN6qoU2dZkWxneN9bOKYcH0O26+bkzyuER3wnmBINvJa 8xB+Z0jgKHtuO6V7z5iytxsXLRTVAR+70Bo3X1jS9nsDSDUqIRoJf5CwQrAEDV5RGjS1 cE2A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=vePxboaj5Wzxcx+RQdgsE8w7bUmtQir6BsCsMhN8f0c=; b=tow9UKRvA0zKiRfLG9zkxR3rFmJEkgAtPlsLj0Gkb5HIYlpJDQeeikTIc4RB5yUR68 KRrVh1KqU+pSF96I2uCvKyC6TVhcx6sNJWmcXxKezczSV7rYJoM5Ql9hPcFLdwokzQqf yyW0PPx5KXCzrBIk3WmD0gKX6PSCQp4VlXen+pJqP/hzBJgkzuCJoPPb66j/xz1V8MpK b+p22vNnDtwqJokRwb5dN8Q7Fdo0TGMJICIHOXa9zW5l2x1iuKrLFS6qmrE7n2Is+oqx 7qJpuWsUsWwXYeVOqyraW99gJUS3XjA5FBs5910K1iW9O+q5orzVzGSzWKri40kghi5Q r42A== X-Gm-Message-State: AOAM530G5SBBzeUspm9S7fEgVT17u+eCAZ6A+4lPuaHTKjSmincd1zuF cD5ssjV+bAA2XYFRX1F14+g+QPNu7u4fjG4MJabPKw== X-Google-Smtp-Source: ABdhPJxJ1BepqUyd1pzpNRrE6pPyLX0NLCHbYv7gA//bljqCSN0Jm91c1toWTFXb1LZT4CQq7q4HgxJF5bvwXhX8Ci4= X-Received: by 2002:a25:abcb:: with SMTP id v69mr3684966ybi.317.1641870799625; Mon, 10 Jan 2022 19:13:19 -0800 (PST) MIME-Version: 1.0 References: <20220111010302.8864-1-richard.weiyang@gmail.com> <20220111010302.8864-3-richard.weiyang@gmail.com> In-Reply-To: <20220111010302.8864-3-richard.weiyang@gmail.com> From: Muchun Song Date: Tue, 11 Jan 2022 11:12:43 +0800 Message-ID: Subject: Re: [PATCH 3/4] mm/memcg: retrieve parent memcg from css.parent To: Wei Yang Cc: Johannes Weiner , Michal Hocko , Vladimir Davydov , Andrew Morton , Shakeel Butt , Roman Gushchin , Vlastimil Babka , Matthew Wilcox , Yang Shi , Suren Baghdasaryan , LKML , Cgroups , Linux Memory Management List Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 9E9C940009 X-Stat-Signature: nkrxiywzdgefx9mimt817tf4o4wbqwe1 Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=bytedance-com.20210112.gappssmtp.com header.s=20210112 header.b=ieCdWrzv; spf=pass (imf04.hostedemail.com: domain of songmuchun@bytedance.com designates 209.85.219.182 as permitted sender) smtp.mailfrom=songmuchun@bytedance.com; dmarc=pass (policy=none) header.from=bytedance.com X-HE-Tag: 1641870800-631349 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 Tue, Jan 11, 2022 at 9:03 AM Wei Yang wrote: > > The parent we get from page_counter is correct, while this is two > different hierarchy. > > Let's retrieve the parent memcg from css.parent just like parent_cs(), > blkcg_parent(), etc. > > Signed-off-by: Wei Yang Reviewed-by: Muchun Song Thanks.