From patchwork Sat Mar 25 06:08:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Rapoport X-Patchwork-Id: 13187605 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EA48EC7619A for ; Sat, 25 Mar 2023 06:11:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232118AbjCYGLk (ORCPT ); Sat, 25 Mar 2023 02:11:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56080 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232187AbjCYGK5 (ORCPT ); Sat, 25 Mar 2023 02:10:57 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 770261A49B; Fri, 24 Mar 2023 23:10:21 -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 17F83B82705; Sat, 25 Mar 2023 06:10:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 34961C433D2; Sat, 25 Mar 2023 06:10:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1679724618; bh=4Z2NWXBqkUcDOlecQgNIdEoHt3g4ySgJpa9xjP+8bWw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cQswqzYqOHsod0pqf6YFh66X/QrCAVr2YAwri/xOv3fttReIoM0QmyS0CNc7O8lfw iB9IiXk9UZF2X7g4y03lD7rt8tiPSQdbx5vzhgyUTdNKn7t6zEZLPPpuy8u+jYk1nB hreHJFycD54YdiEhqQ0HBvllQcOEdNGWjMTQ5lqG4aqa8u1V5zh0ltg8TIX82CILYd KQbZsSzZ3Xm5Sb7cQZr7wWsFV8B62+pKIVwZu8KuYKbvE4cZWx4VrFjgdd89Ru6LQi UFM2jB+uXudse6JjEI6YlpzMkLOP6KzIGAnNOl9YGWIzctd70MNq5ZFVUi6oq06Lts mKW75qDo8MgkQ== 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 13/14] sparc: reword ARCH_FORCE_MAX_ORDER prompt and help text Date: Sat, 25 Mar 2023 09:08:27 +0300 Message-Id: <20230325060828.2662773-14-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 Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org 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/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"