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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id C0CE1C433EF for ; Wed, 16 Feb 2022 12:30:13 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 0ED8F8D0001; Wed, 16 Feb 2022 07:30:13 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 09D7D6B008C; Wed, 16 Feb 2022 07:30:13 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id EF5CC8D0001; Wed, 16 Feb 2022 07:30:12 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0103.hostedemail.com [216.40.44.103]) by kanga.kvack.org (Postfix) with ESMTP id DFD606B008A for ; Wed, 16 Feb 2022 07:30:12 -0500 (EST) Received: from smtpin25.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 88B328F17D for ; Wed, 16 Feb 2022 12:30:12 +0000 (UTC) X-FDA: 79148575464.25.F0AF2D6 Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) by imf28.hostedemail.com (Postfix) with ESMTP id 0AE9EC0002 for ; Wed, 16 Feb 2022 12:30:11 +0000 (UTC) Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4JzHNL13Bsz4xbG; Wed, 16 Feb 2022 23:30:10 +1100 (AEDT) From: Michael Ellerman To: "Aneesh Kumar K.V" , mpe@ellerman.id.au, linuxppc-dev@lists.ozlabs.org Cc: linux-mm@kvack.org In-Reply-To: <20220211065215.101767-1-aneesh.kumar@linux.ibm.com> References: <20220211065215.101767-1-aneesh.kumar@linux.ibm.com> Subject: Re: [PATCH v2] powerpc/mm: Update default hugetlb size early Message-Id: <164501435855.521186.2992256285509889819.b4-ty@ellerman.id.au> Date: Wed, 16 Feb 2022 23:25:58 +1100 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" X-Stat-Signature: 9onzoazyzrcmzqnumipbskx8n34umey1 X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 0AE9EC0002 Authentication-Results: imf28.hostedemail.com; dkim=none; dmarc=none; spf=pass (imf28.hostedemail.com: domain of michael@ellerman.id.au designates 150.107.74.76 as permitted sender) smtp.mailfrom=michael@ellerman.id.au X-Rspam-User: X-HE-Tag: 1645014611-672987 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.039065, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Fri, 11 Feb 2022 12:22:15 +0530, Aneesh Kumar K.V wrote: > commit: d9c234005227 ("Do not depend on MAX_ORDER when grouping pages b= y mobility") > introduced pageblock_order which will be used to group pages better. > The kernel now groups pages based on the value of HPAGE_SHIFT. Hence HP= AGE_SHIFT > should be set before we call set_pageblock_order. >=20 > set_pageblock_order happens early in the boot and default hugetlb page = size > should be initialized before that to compute the right pageblock_order = value. >=20 > [...] Applied to powerpc/next. [1/1] powerpc/mm: Update default hugetlb size early https://git.kernel.org/powerpc/c/2354ad252b66695be02f4acd18e37bf626= 4f0464 cheers