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=-10.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 A42DEC2B9F8 for ; Tue, 25 May 2021 08:09:18 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 5BF24613F9 for ; Tue, 25 May 2021 08:09:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5BF24613F9 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gentwo.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 539E16B006C; Tue, 25 May 2021 04:09:17 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 4C28D6B006E; Tue, 25 May 2021 04:09:17 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 28D136B0070; Tue, 25 May 2021 04:09:17 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0067.hostedemail.com [216.40.44.67]) by kanga.kvack.org (Postfix) with ESMTP id DD91C6B006C for ; Tue, 25 May 2021 04:09:16 -0400 (EDT) Received: from smtpin05.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 7167C180ACF62 for ; Tue, 25 May 2021 08:09:16 +0000 (UTC) X-FDA: 78179028312.05.470174D Received: from gentwo.de (vmi485042.contaboserver.net [161.97.139.209]) by imf30.hostedemail.com (Postfix) with ESMTP id B8407E000801 for ; Tue, 25 May 2021 08:09:11 +0000 (UTC) Received: by gentwo.de (Postfix, from userid 1001) id 10DA1B005D8; Tue, 25 May 2021 10:09:15 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by gentwo.de (Postfix) with ESMTP id 0FDD4B00515; Tue, 25 May 2021 10:09:15 +0200 (CEST) Date: Tue, 25 May 2021 10:09:15 +0200 (CEST) From: Christoph Lameter To: Vlastimil Babka cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, David Rientjes , Pekka Enberg , Joonsoo Kim , Sebastian Andrzej Siewior , Thomas Gleixner , Mel Gorman , Jesper Dangaard Brouer , Peter Zijlstra , Jann Horn Subject: Re: [RFC 02/26] mm, slub: allocate private object map for validate_slab_cache() In-Reply-To: <20210524233946.20352-3-vbabka@suse.cz> Message-ID: References: <20210524233946.20352-1-vbabka@suse.cz> <20210524233946.20352-3-vbabka@suse.cz> User-Agent: Alpine 2.22 (DEB 394 2020-01-19) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Authentication-Results: imf30.hostedemail.com; dkim=none; dmarc=none; spf=pass (imf30.hostedemail.com: domain of cl@gentwo.de designates 161.97.139.209 as permitted sender) smtp.mailfrom=cl@gentwo.de X-Stat-Signature: h8u7y38aojjry8d79xk58ufzdgfj8bu5 X-Rspamd-Queue-Id: B8407E000801 X-Rspamd-Server: rspam02 X-HE-Tag: 1621930151-543784 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, 25 May 2021, Vlastimil Babka wrote: > validate_slab_cache() is called either to handle a sysfs write, or from a > self-test context. In both situations it's straightforward to preallocate a > private object bitmap instead of grabbing the shared static one meant for > critical sections, so let's do that. Acked-by: Christoph Lameter