From patchwork Fri Mar 24 05:22:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Rapoport X-Patchwork-Id: 74347 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b0ea:0:b0:3b6:4342:cba0 with SMTP id b10csp389101vqo; Thu, 23 Mar 2023 22:30:01 -0700 (PDT) X-Google-Smtp-Source: AKy350bfmiv0RgBwMPwl4bK6YvJWBjLwuXZvVrPB/+DnMlXruQTkLZi8bbki+vrR4JtjnCs4hZUh X-Received: by 2002:a17:903:228b:b0:19e:6cb9:4c8f with SMTP id b11-20020a170903228b00b0019e6cb94c8fmr1655159plh.41.1679635800781; Thu, 23 Mar 2023 22:30:00 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1679635800; cv=none; d=google.com; s=arc-20160816; b=iWZmdinjUAtGP+MAbIuruxWbfgxNCKnzrJ80EjT1W4YKifMXgvAfKL4gfBh8N9m/9R EMugV3HLK47sbB87OWfBVoexEP34bzoOPjL3Irk4MAnGUxHBzEQwhqiMT8LpDw9cqM6D fd9sJxlFUd+zxcpOKERhg/OhlZvHRJrUEzlp3pmLzd4FIUhztRV2BbMKK711POR+ghvZ 1GwpiV7Cl2Thkcl5Cnw+q2XFcY0cBCJv3qIwJ83Kp590enLAVe+tV1WwvyBazd24HclK Jqz4NjIewyTF8ypkbYZsbTfZgLQw+c8ZMZYzAji417qFMuk4BHoTy+Pdc5lh8j6ZpIb2 m/fw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=as8XGGRYoRm9u5Jes2AlrzCLNt4/BlAu0a9TDmoK8bw=; b=qH2cvYOG2ggYl7hBJSRfxLf50PheNH8gSGjLNfec8lETb0KpOYTzxf5q/JTK4fM0Uo mSjwNrBLkjnK7oEnhT3gWCjeATgbSiRyF0LN2h2WkepcehtNa/m927tzUiGkFTQmkj3o uQkIbKebUVkUO/eY0LeWZEtcS/djZ6BfVYBLlGSttQ9o5DZbOnrXDB4lfQF33k5qmIUY gLJnKocP5FB0+1ugJ/kcwrUt0sNx6encN+K/Ccb1+uL2cXsXKv7nELSxBDBX8akd1Ewo KTvUlGBzTy4VvPm3KYKdObWBmT/J2Efy2tfL50A38PNb4Kni9QA89uZeT873GIwU0ZDU /Aww== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=OaMe0O8Y; 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; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id q24-20020a170902789800b00194a1f665b5si18945908pll.570.2023.03.23.22.29.48; Thu, 23 Mar 2023 22:30:00 -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=@kernel.org header.s=k20201202 header.b=OaMe0O8Y; 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; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229945AbjCXF0R (ORCPT + 99 others); Fri, 24 Mar 2023 01:26:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33888 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231669AbjCXFZa (ORCPT ); Fri, 24 Mar 2023 01:25:30 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E02582A9AE; Thu, 23 Mar 2023 22:24:28 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 98EFCB8227A; Fri, 24 Mar 2023 05:24:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8DE6FC433EF; Fri, 24 Mar 2023 05:24:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1679635466; bh=1zRPyaaLaKChlaF3HiLNG8L4a1+H9YMBeM142XTaxBY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OaMe0O8Y/VqFyvv8P3AJ1JWfaNX6fUglLOJcj3uiMUNqxbjm8gr3zQzueLpQbru3k epbhwOHrXR1omZCGUJ46MWgrzi5JVVVUMbEvFwbZBHTNJoP1R3O3Rt357nnca+/Y50 MazCC6m/TE6Wk5itsz2kNTymFFE6Ee7czzfdznGtRIDbRXKkKdT8k8Q69UUznV4zMY kNNQO5IhLe22jyNOezzwMTCICskwDUKeXENIxmLxZ4yPWLQaCW5OKBlzmo+od0rKRh WosyWZZ35ErgkBKSd9iQE6LbvHpmmzi5D05v0zIQAi4gdnhM3ArvsglzNbBv6+vb9z 9Y8re2b10Yv7w== From: Mike Rapoport To: Andrew Morton Cc: Arnd Bergmann , Catalin Marinas , Christophe Leroy , "David S. Miller" , Dinh Nguyen , Geert Uytterhoeven , Guo Ren , John Paul Adrian Glaubitz , "Kirill A. Shutemov" , Max Filippov , Michael Ellerman , Mike Rapoport , Rich Felker , Russell King , Will Deacon , Yoshinori Sato , Zi Yan , linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mm@kvack.org, linux-sh@vger.kernel.org, linux-xtensa@linux-xtensa.org, linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org Subject: [PATCH v2 13/14] sparc: reword ARCH_FORCE_MAX_ORDER prompt and help text Date: Fri, 24 Mar 2023 08:22:32 +0300 Message-Id: <20230324052233.2654090-14-rppt@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20230324052233.2654090-1-rppt@kernel.org> References: <20230324052233.2654090-1-rppt@kernel.org> MIME-Version: 1.0 X-Spam-Status: No, score=-2.5 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_PASS autolearn=unavailable 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 X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1761225789470626350?= X-GMAIL-MSGID: =?utf-8?q?1761225789470626350?= From: "Mike Rapoport (IBM)" The prompt and help text of ARCH_FORCE_MAX_ORDER are not even close to describe this configuration option. Update both to actually describe what this option does. Signed-off-by: Mike Rapoport (IBM) Acked-by: Kirill A. Shutemov --- arch/sparc/Kconfig | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index e3242bf5a8df..959e43a1aaca 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -270,15 +270,17 @@ config ARCH_SPARSEMEM_DEFAULT def_bool y if SPARC64 config ARCH_FORCE_MAX_ORDER - int "Maximum zone order" + int "Order of maximal physically contiguous allocations" default "12" help - The kernel memory allocator divides physically contiguous memory - blocks into "zones", where each zone is a power of two number of - pages. This option selects the largest power of two that the kernel - keeps in the memory allocator. If you need to allocate very large - blocks of physically contiguous memory, then you may need to - increase this value. + The kernel page allocator limits the size of maximal physically + contiguous allocations. The limit is called MAX_ORDER and it + defines the maximal power of two of number of pages that can be + allocated as a single contiguous block. This option allows + overriding the default setting when ability to allocate very + large blocks of physically contiguous memory is required. + + Don't change if unsure. if SPARC64 || COMPILE_TEST source "kernel/power/Kconfig"