From patchwork Fri Mar 24 05:22:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Rapoport X-Patchwork-Id: 1760633 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=ozlabs.org (client-ip=2404:9400:2221:ea00::3; helo=gandalf.ozlabs.org; envelope-from=srs0=/jdr=7q=vger.kernel.org=sparclinux-owner@ozlabs.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=A3CqxCMw; dkim-atps=neutral Received: from gandalf.ozlabs.org (mail.ozlabs.org [IPv6:2404:9400:2221:ea00::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4PjW0V4Ypmz1yXr for ; Fri, 24 Mar 2023 16:26:34 +1100 (AEDT) Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) by gandalf.ozlabs.org (Postfix) with ESMTP id 4PjW0V432lz4xDj for ; Fri, 24 Mar 2023 16:26:34 +1100 (AEDT) Received: by gandalf.ozlabs.org (Postfix) id 4PjW0V401bz4xDr; Fri, 24 Mar 2023 16:26:34 +1100 (AEDT) Delivered-To: patchwork-incoming@ozlabs.org Authentication-Results: gandalf.ozlabs.org; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: gandalf.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=sparclinux-owner@vger.kernel.org; receiver=) Authentication-Results: gandalf.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=A3CqxCMw; dkim-atps=neutral Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by gandalf.ozlabs.org (Postfix) with ESMTP id 4PjW0V3vGHz4xDj for ; Fri, 24 Mar 2023 16:26:34 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231663AbjCXF0c (ORCPT ); Fri, 24 Mar 2023 01:26:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32892 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231231AbjCXFZd (ORCPT ); Fri, 24 Mar 2023 01:25:33 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 36F6A1A949; Thu, 23 Mar 2023 22:24:36 -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 DEA94B822EF; Fri, 24 Mar 2023 05:24:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DD2BAC4339B; Fri, 24 Mar 2023 05:24:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1679635473; bh=nw8UNJG7nUuciviQays7D2+1DNRt50wOuGp0YNt2kts=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=A3CqxCMwJfZzwcOy2cHw6Hy5i4tjtq0LLAqlPpMCz7gceY63zG9+sMCnohgsmNBDp BJhwe+zNosK9oTtSQJ6sMo8h6vZQi3bv8P4VussUYnMpuK3aiMI/SN4BS8qQdBSpx1 N4o7L4cp676/LUwaSYP8a8XIhiZKbu5cpIY6aX1ykFXPd7EcB0LPOc/C0J/4Xdezpm 9EkSoLPcIlsQkrS8IVNKy0jHHPFeCeWECsgynPY3be9ACBDzng19Lmp+cOjgPEHoQ5 w6mtefVg74Z8gmKTE2K06WnOiAV3JoECw5bbt0ivWjt7dfAgLQyScbiZeeTkqm48hH er1kCT3TasZWQ== 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 14/14] xtensa: reword ARCH_FORCE_MAX_ORDER prompt and help text Date: Fri, 24 Mar 2023 08:22:33 +0300 Message-Id: <20230324052233.2654090-15-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=-5.2 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI,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: sparclinux@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. Signed-off-by: Mike Rapoport (IBM) Reviewed-by: Max Filippov Acked-by: Kirill A. Shutemov --- arch/xtensa/Kconfig | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index 3eee334ba873..3c6e5471f025 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -772,15 +772,17 @@ config HIGHMEM If unsure, say Y. config ARCH_FORCE_MAX_ORDER - int "Maximum zone order" + int "Order of maximal physically contiguous allocations" 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. + + Don't change if unsure. endmenu