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 X-Spam-Level: X-Spam-Status: No, score=-6.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7E2FFC433E1 for ; Wed, 19 Aug 2020 03:26:24 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 3F52D2087D for ; Wed, 19 Aug 2020 03:26:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="Y/GJHTDJ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3F52D2087D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id B8E516B0070; Tue, 18 Aug 2020 23:26:23 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id B3EDF6B0071; Tue, 18 Aug 2020 23:26:23 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A7CB06B0072; Tue, 18 Aug 2020 23:26:23 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0221.hostedemail.com [216.40.44.221]) by kanga.kvack.org (Postfix) with ESMTP id 934B16B0070 for ; Tue, 18 Aug 2020 23:26:23 -0400 (EDT) Received: from smtpin29.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 5314F8248047 for ; Wed, 19 Aug 2020 03:26:23 +0000 (UTC) X-FDA: 77165880246.29.view81_480f8af27024 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin29.hostedemail.com (Postfix) with ESMTP id 1E0DA18086CD4 for ; Wed, 19 Aug 2020 03:26:23 +0000 (UTC) X-HE-Tag: view81_480f8af27024 X-Filterd-Recvd-Size: 2113 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf27.hostedemail.com (Postfix) with ESMTP for ; Wed, 19 Aug 2020 03:26:22 +0000 (UTC) Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1BBFA20639; Wed, 19 Aug 2020 03:26:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597807581; bh=q7+Q/+y2Z3KkXfI9Jfs3WmjNQUR4eLgv8vMcc1n2J1Y=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=Y/GJHTDJ0a8fdqqPNcZ36pLJ65TO6e5ck0D8eOohdb1dqL/x3PzHY7L/vAG1QGsZb 5vv/m0nHF39SCc/E4B2r3E6jfqLKEC+ik+gy4VH03JgEbipL6j7Q7erl1g4o6Ol2po iKzrJGRfHg+zy//zwoDtTD1GU/KI6lhKaCf0R508= Date: Tue, 18 Aug 2020 20:26:19 -0700 From: Andrew Morton To: Cc: Christoph Lameter , Pekka Enberg , "David Rientjes" , Joonsoo Kim , , , "open list:SLAB ALLOCATOR" , "open list" Subject: Re: [PATCH] mm/slub: sysfs cleanup on cpu partial when !SLUB_CPU_PARTIAL Message-Id: <20200818202619.6f04826a98d845e489890bba@linux-foundation.org> In-Reply-To: <20200813084858.1494-1-wuyun.wu@huawei.com> References: <20200813084858.1494-1-wuyun.wu@huawei.com> X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 1E0DA18086CD4 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam05 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 Thu, 13 Aug 2020 16:48:54 +0800 wrote: > Hide cpu partial related sysfs entries when !CONFIG_SLUB_CPU_PARTIAL to > avoid confusion. > But it changes the userspace interface in ways which might cause existing code to misbehave? We just had to revert a different commit for this reason :( http://lkml.kernel.org/r/20200811075412.12872-1-bhe@redhat.com