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]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7003BCD5BB4 for ; Fri, 22 May 2026 16:16:20 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 77BEE6B00BB; Fri, 22 May 2026 12:16:19 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 753B16B00BF; Fri, 22 May 2026 12:16:19 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 690CA6B00C1; Fri, 22 May 2026 12:16:19 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 5AE686B00BB for ; Fri, 22 May 2026 12:16:19 -0400 (EDT) Received: from smtpin16.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay10.hostedemail.com (Postfix) with ESMTP id C71D4C32BB for ; Fri, 22 May 2026 16:16:18 +0000 (UTC) X-FDA: 84795558036.16.52DD9EB Received: from out-182.mta1.migadu.com (out-182.mta1.migadu.com [95.215.58.182]) by imf18.hostedemail.com (Postfix) with ESMTP id D31321C000D for ; Fri, 22 May 2026 16:16:16 +0000 (UTC) Authentication-Results: imf18.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=Q0r7+mfJ; spf=pass (imf18.hostedemail.com: domain of shakeel.butt@linux.dev designates 95.215.58.182 as permitted sender) smtp.mailfrom=shakeel.butt@linux.dev; dmarc=pass (policy=none) header.from=linux.dev ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1779466577; 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: in-reply-to:in-reply-to:references:references:dkim-signature; bh=0Z1BzU0TCCSZhOvR13JsXIxVpOY0gN7R0aERAlJ0Ans=; b=L1olNBAV17xx4CxIyelpMeEovAunt9KyTMC7F1ymUFlrnz78uAPz04YAGscOfatCfzmGxv w3GPp7IEnrRvxwpxN0tzoI32JJLA8GGEh5fX+dScv7PJYW0LUkVVp7EkV7/Pbq1epzHmeE YGeJxtCImxUQwbJfKO6myb/oMOuvsjM= ARC-Authentication-Results: i=1; imf18.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=Q0r7+mfJ; spf=pass (imf18.hostedemail.com: domain of shakeel.butt@linux.dev designates 95.215.58.182 as permitted sender) smtp.mailfrom=shakeel.butt@linux.dev; dmarc=pass (policy=none) header.from=linux.dev ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1779466577; a=rsa-sha256; cv=none; b=K/NnucYk693NCZDSUkpyjsl+0sx1S2/FVXRJ2QkrgVaa6d60hTTCwQX3Fhr5RzVMPhsKpf jcR5aLP4B4d1GsRPTMMLdeJjV2cI99kjKJsLkkmug9IEmUilVs2jusK4a4y9w8IEeYK8L8 YNSw/q6ZByNpcw7JcndfnnezCQwHKOM= Date: Fri, 22 May 2026 09:16:09 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1779466574; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=0Z1BzU0TCCSZhOvR13JsXIxVpOY0gN7R0aERAlJ0Ans=; b=Q0r7+mfJigdGlW8RWCJe1aremsWrxqE6KL7UKXX4fkS+fXcRHFRRk2UtaJ5w02O2diHDkV yRLTtjoJxg0QbEYbrhpexs4sOFebYZuk2wyEMlAL9Ust7lt1jsmA08/fLTOJRfKEKZXOF4 xA63/cU2zqsFx0P9+xcXZgYsgfXml60= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Shakeel Butt To: Andrew Morton Cc: Harry Yoo , Johannes Weiner , Michal Hocko , Roman Gushchin , Muchun Song , Qi Zheng , Alexandre Ghiti , Joshua Hahn , Meta kernel team , linux-mm@kvack.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, kernel test robot Subject: Re: [PATCH v3] memcg: cache obj_stock by memcg, not by objcg pointer Message-ID: References: <20260518222827.110696-1-shakeel.butt@linux.dev> <4e296262-fbbf-4ac7-aecc-3ef831583704@kernel.org> <20260519134927.ee04379d07b0674872422c06@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260519134927.ee04379d07b0674872422c06@linux-foundation.org> X-Migadu-Flow: FLOW_OUT X-Rspam-User: X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: D31321C000D X-Stat-Signature: 7q5zhgnshncdbfzwqfki14ox5tyxee44 X-HE-Tag: 1779466576-827807 X-HE-Meta: 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 mSolleLO 4o0Nd++FQxVSh+xzA+tDRjUmo5UUjVrjs3+fgm/IMWGID57OUnsEEJ91VhS6nyN/DPaLmaGV/G6BXjxS8afUaiBwMYBfP0AjcPD4okbUteNxipgyUJIM44ZwLfQf/23yj9+Z8vnP7jV5FXvVpk3T3maQ0RvYjsDBmUPY2JHibU5n5I083aD1kj9fQjuHad6RuA5nw7q2Xzo5wXsM3Lne9QHh1+Xo8BbYpq28z7H7Qj7tugGQdEIw9wkaiPrnYcKG0HAECavywYDaAJaW1kqHGtqDIqtJ0qURs7JBGiM2UcuN8LHcpBcjNUWhcqb6y4mxxiz5NYjvzsQfnG4SiaxH5X7DB31farz1w26og Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, May 19, 2026 at 01:49:27PM -0700, Andrew Morton wrote: > On Tue, 19 May 2026 13:11:13 -0700 Shakeel Butt wrote: > > > Andrew, please don't send this patch to Linus until we decide on the option. > > No probs, I added a note-to-self. Here is my suggestion on how to proceed. 1. Let's drop this patch (memcg: cache obj_stock by memcg, not by objcg pointer) from mm-tree. 2. Let's not add anything to 7.1. 3. 7.2+ will have the multi-objcg series [1] and the patches will have fixes tag. If someone uses non-LTS 7.1, they can easily find those patches and can backport them. Please let me know if there are any concerns. [1] https://lore.kernel.org/20260522011908.1669332-1-shakeel.butt@linux.dev/