Received: by 2002:a05:6a10:206:0:0:0:0 with SMTP id 6csp4165773pxj; Tue, 25 May 2021 01:43:59 -0700 (PDT) X-Google-Smtp-Source: ABdhPJylMQ1MYNnFK29jfCYp62IrouuskG1W412TFhJ6ksH8om7kMttUoSiEWdKKPvke/Vl+5F+e X-Received: by 2002:a05:6402:4414:: with SMTP id y20mr31357869eda.41.1621932238952; Tue, 25 May 2021 01:43:58 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1621932238; cv=none; d=google.com; s=arc-20160816; b=w+Jb+6MzwwUC7zA+AkEMQJNlvLh/3gComN7W8bP087YjLWWYMosy+7e4YBhMvdH+Je W9/pC+C5Knh2CtTtdDGdl770/WiLR2vZVy+A2V4U8YrjjMer+pj2+ewy+tlwSAIZ2k62 OLefodNTzfEHxkAcm1gFEu+UT2iNl3X077Y13usP1L1b8UQMw+AYuv+ip9HPFCpWRUJP wpdAot/hJHFy6aFZRQkYoUHYDFDdDpeWgAGjr/0Rrps/UoQQclAOzzLw80dL9p9lh4dr xgiYT1ArGaRXmD3Jz/3FYIucEYolzIMfugLs/809drhuQCtEBUG+oN7a06KqeeqbWQuq ak5A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:user-agent:references:message-id :in-reply-to:subject:cc:to:from:date; bh=TjihQnpvkXUN9SeoHvgcpymZKKHtOkBqoyu21IdYVH8=; b=s4X8KFSNV9DzFsVjkXKtf5c26xlm4w2gvAIyRr3WuL22tPID7lrqAUUwss6Ee7sQuH U1RAoO68kGJ8VeMufFULS61rTpL+/VHEUMw9GMz1kkTEGzn2czMm2rYYJKAuZBfwdJ0e kWAnDRTP+Mfm8xI83xGQb2XET5kUEZR3jRuV/4OpryEq+n9D3bzUV6yqlETK7hxeERX/ dKSmgFznza+fIaOoh5z62ibGZXkrhEQHv1v5vu/bHMHD6YOBBeYFk49Y8kF6CRgMAOm/ M0IbwP1yusPO0e1BcrdKr8iv0BRixDVRBP187XenyXMwRf2A8VZY4R48X1/3ujNIlAPD 8ZOQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id dt22si15652500ejc.424.2021.05.25.01.43.36; Tue, 25 May 2021 01:43:58 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232027AbhEYIMo (ORCPT + 99 others); Tue, 25 May 2021 04:12:44 -0400 Received: from vmi485042.contaboserver.net ([161.97.139.209]:39912 "EHLO gentwo.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232320AbhEYIKp (ORCPT ); Tue, 25 May 2021 04:10:45 -0400 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 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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