From patchwork Sat Mar 25 06:08:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Rapoport X-Patchwork-Id: 13187588 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 9AE99C77B60 for ; Sat, 25 Mar 2023 06:10:08 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 3DA256B0081; Sat, 25 Mar 2023 02:10:08 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 38A046B0082; Sat, 25 Mar 2023 02:10:08 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 25130280001; Sat, 25 Mar 2023 02:10:08 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 181126B0081 for ; Sat, 25 Mar 2023 02:10:08 -0400 (EDT) Received: from smtpin12.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id A6205120901 for ; Sat, 25 Mar 2023 06:10:07 +0000 (UTC) X-FDA: 80606395254.12.2CF611E Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf08.hostedemail.com (Postfix) with ESMTP id DB5B9160009 for ; Sat, 25 Mar 2023 06:10:05 +0000 (UTC) Authentication-Results: imf08.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b="NhWIQf/4"; spf=pass (imf08.hostedemail.com: domain of rppt@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=none) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1679724606; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=mNhKRRbyLF5P3029meSnGpXx8IgTnYeok3lKIpJghCk=; b=3Gw7CK5zBYpOjhhRgUsL/JOF9G2adDTT9qWCgY5V7SLUEGAm3pJAKTIimZqR4K7vV97kgW uoqgF8WSGplKY1dIPmJhRH1SQYoDFe6mHlKNNbo0PK3A1EeG4IwS9mlj6yW5A5tdGrLlsy 2T7WnC6mdHgiDGdjaqHYIvZ3CD89CHc= ARC-Authentication-Results: i=1; imf08.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b="NhWIQf/4"; spf=pass (imf08.hostedemail.com: domain of rppt@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=none) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1679724606; a=rsa-sha256; cv=none; b=BYE3tnjoAfZes5ZD8K6OlkaMbcgxrZv3t03TJ71vaLTVjmJ1LUdG/Fa5OuSSGY4PfMPrv7 MCjrmVj+vdvQJJsu9TysHV+OoIFHg+RzE0y2V6EsA2oBaniZuDYBQSO/f79pzLuLn5obkN SIbDXQPr8Rq+BsjmX32mXb7cDCDDWdg= 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 dfw.source.kernel.org (Postfix) with ESMTPS id 1B18F60A0C; Sat, 25 Mar 2023 06:10:05 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D45A0C433A7; Sat, 25 Mar 2023 06:09:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1679724604; bh=Q4kzp7hmJKAwhCDFhRPUCQkNxwXkbNHUiNCRyHZVRo4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NhWIQf/4CSlIfbVurDZyUb06nGU3J/0m5t5Q7paTe2sA4FJ4ExnWqS7+owSCidLIV xjF4Hui1ktMhyFjKRdWZz+zzit5NFzt5X9svx3qCkHz3yuhUcxQd5J6Fi51KTKe6YY W6Ta+3a0kjpl86l7bSQWaOgVIQHX1l0ORB2R6wDGkRpUKWhtIdavVLu6WUsuuThUFC CYGII+/RR+PTXKmCiR/N2d6kJjrSeDNgNhjt4nOPpvRZeMqm/m3+tm+/bwVjoQa5/z CjIVu9EE6qYeTXhqF5BEwB5udvuVW0dYoEUnybQbj1jeBPq+5I1Kvx4hb/eGW4YrmY mvsljINWlR8TA== 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 v3 11/14] sh: reword ARCH_FORCE_MAX_ORDER prompt and help text Date: Sat, 25 Mar 2023 09:08:25 +0300 Message-Id: <20230325060828.2662773-12-rppt@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20230325060828.2662773-1-rppt@kernel.org> References: <20230325060828.2662773-1-rppt@kernel.org> MIME-Version: 1.0 X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: DB5B9160009 X-Rspam-User: X-Stat-Signature: gtog9absf53ajjx31zx1smermbqfb78e X-HE-Tag: 1679724605-22396 X-HE-Meta: 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 hL2c3x3K RjGMZYt9+p3n4hnRzKhX6HK8hAyurvy3i4u26Zph37fMYO4bctXBpF59iIVSdMZ+rmnfF/tW3S/8sM0sNsThADdxZmgLgjodLFMhviuWkB5dHxhU9yEK8ZA39yyBL7KnialIQAe1uKb1hn8rjMdeIFx7VsAv3fCd/lwKE/tjM33XRQruhUcA5uxBVWh5B7n5NLvVOYFawdekT8vCwmHSHtgnfbGdOYN2HX9wYpX4XFRPzoHvzXU01wHFWSahiwI0ShgSA/D7LQj0eyyytBVyxGYHIf/pPnWSjNO+BukpRg/eJbA+QJk39AbccOzbnXFjFdvgBgMWrVTJrXs9RbDweyuBQ8GhrKkHKdeB19BzKNXWruq3R6KzGO28bmjLl6KPGZUH0KS4+vknHSjA+hpF1yDI6Kd8Ngbn26CnSLJ7EQqI5AwYVQm1BX4jUUj6XuXLHqnqgZTlh+eiArfl+br6r5OtxqOGEd4EdXnQmv4MmOR3z+qA= 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: 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. Acked-by: Kirill A. Shutemov Reviewed-by: Zi Yan Signed-off-by: Mike Rapoport (IBM) --- arch/sh/mm/Kconfig | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig index 40271090bd7d..238b2772751e 100644 --- a/arch/sh/mm/Kconfig +++ b/arch/sh/mm/Kconfig @@ -19,7 +19,7 @@ config PAGE_OFFSET default "0x00000000" config ARCH_FORCE_MAX_ORDER - int "Maximum zone order" + int "Order of maximal physically contiguous allocations" range 8 63 if PAGE_SIZE_16KB default "8" if PAGE_SIZE_16KB range 6 63 if PAGE_SIZE_64KB @@ -28,16 +28,18 @@ config ARCH_FORCE_MAX_ORDER default "13" if !MMU default "10" 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. The page size is not necessarily 4KB. Keep this in mind when choosing a value for this option. + Don't change if unsure. + config MEMORY_START hex "Physical memory start address" default "0x08000000"