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=-3.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 1DF1BC433B4 for ; Mon, 10 May 2021 08:53:41 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 9F4A36143C for ; Mon, 10 May 2021 08:53:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9F4A36143C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id DF0756B0036; Mon, 10 May 2021 04:53:39 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id DD3916B0071; Mon, 10 May 2021 04:53:39 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id CDCAA6B0072; Mon, 10 May 2021 04:53:39 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0203.hostedemail.com [216.40.44.203]) by kanga.kvack.org (Postfix) with ESMTP id B2AE16B0036 for ; Mon, 10 May 2021 04:53:39 -0400 (EDT) Received: from smtpin34.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 56B2A8249980 for ; Mon, 10 May 2021 08:53:39 +0000 (UTC) X-FDA: 78124708158.34.E953435 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf20.hostedemail.com (Postfix) with ESMTP id F2752DD for ; Mon, 10 May 2021 08:53:37 +0000 (UTC) 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=jac63i9sp+2HDTsLLc4LJUWG/al5HXdYHUq8upjX9UY=; b=PoOh1YAsQsQJsKGPG9SdJESPGd Wr8U0VUVXdUCZ/WD9EYow6JmIsJaF9RbGcytrxjA4jmLGIjsHkMCtxGnuCg/b1zOBymia7U6m/sqe xs93Dn5pLKFrgNmbo4PQghn7DljG05hoYKVsCjdyGRaX1Tsebnly6IMLB1rtPVqw5MvVC9PWSwgBf ytJAi/RFn08GbnPEL2p8IiMSZuEpEbW7a1jU5yT+e6w37P62pO69CO2+9QxrmpIwlALbIFMkejaQw mKY3dD7XwbLa449uJsuHiPaq3i8m9jbbdC14KypJ7FgBMiQEXLO4UF05eC7SK3adsZnMSAl3ltTlK wqbBQ25A==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=worktop.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94 #2 (Red Hat Linux)) id 1lg1f8-005s3j-S6; Mon, 10 May 2021 08:53:16 +0000 Received: by worktop.programming.kicks-ass.net (Postfix, from userid 1000) id 7FD21980331; Mon, 10 May 2021 10:53:13 +0200 (CEST) Date: Mon, 10 May 2021 10:53:13 +0200 From: Peter Zijlstra To: Anshuman Khandual Cc: linux-mm@kvack.org, akpm@linux-foundation.org, Heiko Carstens , Vasily Gorbik , Thomas Gleixner , Ingo Molnar , x86@kernel.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] mm/thp: Make ARCH_ENABLE_SPLIT_PMD_PTLOCK dependent on PGTABLE_LEVELS > 2 Message-ID: <20210510085313.GB5618@worktop.programming.kicks-ass.net> References: <1620621345-29176-1-git-send-email-anshuman.khandual@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1620621345-29176-1-git-send-email-anshuman.khandual@arm.com> Authentication-Results: imf20.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=PoOh1YAs; dmarc=none; spf=none (imf20.hostedemail.com: domain of peterz@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=peterz@infradead.org X-Stat-Signature: fgpk3m13yyfis3hyjioditorck4eqgpp X-Rspamd-Queue-Id: F2752DD X-Rspamd-Server: rspam05 Received-SPF: none (infradead.org>: No applicable sender policy available) receiver=imf20; identity=mailfrom; envelope-from=""; helo=casper.infradead.org; client-ip=90.155.50.34 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1620636817-722674 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 Mon, May 10, 2021 at 10:05:45AM +0530, Anshuman Khandual wrote: > - select ARCH_ENABLE_SPLIT_PMD_PTLOCK if X86_64 || X86_PAE > + select ARCH_ENABLE_SPLIT_PMD_PTLOCK if (PGTABLE_LEVELS > 2) && (X86_64 || X86_PAE) It's still very early on a Monday, but IIRC this new condition is identical to the pre-existing one.