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[2620:137:e000::1:20]) by mx.google.com with ESMTP id o14-20020a17090a4e8e00b0025027e0ad3dsi15030983pjh.81.2023.05.11.00.55.22; Thu, 11 May 2023 00:55:35 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b="DOnolZC/"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237261AbjEKHah (ORCPT + 99 others); Thu, 11 May 2023 03:30:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37400 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232059AbjEKHaf (ORCPT ); Thu, 11 May 2023 03:30:35 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 592EE1992; Thu, 11 May 2023 00:30:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=azrNy8jR/eywnBe5iwkYoTICDEd2tFtH6QS0WKjjh5Y=; b=DOnolZC/QK5V4Ywtwv/HYv2sLi G/VPQSHN21qshNyaBTulG9YFOTbpF8huQfm5A3YVQC9FVPP0LJ/rY35lV3geLDJTLnx3KAm/xmXY3 72gZNN6EVuWC6WMSTxquMfkz56mhTF/9kJFHkxmZHYd8lFAtAPuTu83wHSH7aa7l3hLdJ0vYXlapL CX9ty1km6fTUTDuW10LgI0DaPt+V1bs9I+wdQw+TRqwlutvImWhUZhKWAqmN2ul+mYWVLG1d2d5Z9 Cs7p6fUpjHcPwE88ZV6c+gEZlM5oLRoRD1B7l9kfMlks8GJWdml4nPgUlzCx+T0plhz7c265PEFIK ldBZ4AtQ==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1px0jv-00Gz99-0Q; Thu, 11 May 2023 07:29:27 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 8D3CC300023; Thu, 11 May 2023 09:29:21 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 68A20235CC445; Thu, 11 May 2023 09:29:21 +0200 (CEST) Date: Thu, 11 May 2023 09:29:21 +0200 From: Peter Zijlstra To: Hugh Dickins Cc: Andrew Morton , Mike Kravetz , Mike Rapoport , "Kirill A. Shutemov" , Matthew Wilcox , David Hildenbrand , Suren Baghdasaryan , Qi Zheng , Russell King , Catalin Marinas , Will Deacon , Geert Uytterhoeven , Greg Ungerer , Michal Simek , Thomas Bogendoerfer , Helge Deller , John David Anglin , "Aneesh Kumar K.V" , Michael Ellerman , Alexandre Ghiti , Palmer Dabbelt , Heiko Carstens , Christian Borntraeger , Claudio Imbrenda , John Paul Adrian Glaubitz , "David S. Miller" , Chris Zankel , Max Filippov , x86@kernel.org, linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH 21/23] x86: Allow get_locked_pte() to fail Message-ID: <20230511072921.GP4253@hirez.programming.kicks-ass.net> References: <77a5d8c-406b-7068-4f17-23b7ac53bc83@google.com> <20230510081848.GD83892@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, May 10, 2023 at 08:16:34PM -0700, Hugh Dickins wrote: > Thanks for looking so quickly, Peter: I didn't Cc you on this particular > series, but shall certainly be doing so on the ones that follow, because > a few of those patches go into interesting pmdp_get_lockless() territory. I'm in the x86@ catch-all, which is how I saw this as quickly :-) A direct copy won't hurt ofc, the mail system will sort it out.