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 4A666C6FD1D for ; Thu, 23 Mar 2023 09:22:25 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 8FD216B0075; Thu, 23 Mar 2023 05:22:24 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 8D4036B0078; Thu, 23 Mar 2023 05:22:24 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 775876B007B; Thu, 23 Mar 2023 05:22:24 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id 64C6E6B0075 for ; Thu, 23 Mar 2023 05:22:24 -0400 (EDT) Received: from smtpin25.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id 3A11C1A0617 for ; Thu, 23 Mar 2023 09:22:24 +0000 (UTC) X-FDA: 80599622208.25.0447593 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf24.hostedemail.com (Postfix) with ESMTP id 881E718000A for ; Thu, 23 Mar 2023 09:22:22 +0000 (UTC) Authentication-Results: imf24.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=jhevsx6F; spf=pass (imf24.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=1679563342; 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=gXlz2GDwGEf828vKAQ4gOXkpfBOIBEYsl1gssZpmRJQ=; b=02DeWNb9CdHXk+iXk3S+Ql0S8BHjtZ82MFc4N6buS2TqewjqqC8XjMVeWgnriT3O1XmOuS xrXHBAInno33lql2zjEazn2sNF6Uw2JFGsbiYWuPT34lmQ9t4+YyckkFNbFsHRwUpX6Byf WB3lRXPS+E85mWLO579AcEpHFg2v3dE= ARC-Authentication-Results: i=1; imf24.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=jhevsx6F; spf=pass (imf24.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=1679563342; a=rsa-sha256; cv=none; b=xZOs4PsUFY9596oSvStO0DrPQQlm5Onsh56n+9mCvOfqg3xzLwJd5Bl8MphnmtwkHLuGzc oCU2/aCSup16TkxnLNpReC0UaiMsUbYPRtHMxq/QAUjIrQ2goR1eSZA9Q1ILgXhWSK7MPH DHFHxQguxGgAJDu7UnwzVFyaBDTc2AU= 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 B572962542; Thu, 23 Mar 2023 09:22:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 259A5C433A8; Thu, 23 Mar 2023 09:22:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1679563341; bh=dcp30wp/Hf38sazwKthrJJR/hJsAXPYg2a1DhIjhRsY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jhevsx6FrKz/DSKyWa48ul+Br2Qq/2CdJ5Nno3oUdRcLCIk7t1cB69NdAiT1tyn5H Lhz9wXdd5uW6MFyeM+B3h0u5ydPTvK6l7CwpgHyUk3OAlG9W2UODv0/MJDEe3oHJOX /m2zMnBtkTaffkchF+6L07TdZQwBCPludGH8NHdSFGMYkW0A/qG31dPbgSSEevOGTB mnSJ77OEHBhaBpfgDQgrtyP3mOg3IRf23662ZNu2bRdqFbjyKhfTPTIRFNBR2BggXZ Y0Ifi3DaCS8c1NsQKYmG++xjhZAcZPCDklL+uk+NpDJszMuDUHYYaoRUcujltm1mXh pEp5mnhql9Qpg== 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 01/14] arm: reword ARCH_FORCE_MAX_ORDER prompt and help text Date: Thu, 23 Mar 2023 11:21:43 +0200 Message-Id: <20230323092156.2545741-2-rppt@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20230323092156.2545741-1-rppt@kernel.org> References: <20230323092156.2545741-1-rppt@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: m1qkrcq84hywjiiw1swc37y99n71w6gd X-Rspam-User: X-Rspamd-Queue-Id: 881E718000A X-Rspamd-Server: rspam06 X-HE-Tag: 1679563342-870658 X-HE-Meta: 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 IGhq5G4v wYiZvDYvBofjIi993GS/14n4ByJZFZKG+WjGZP+jIwuz00NMt+Vh+kcfehliiMLgj2bkVd7wLiBJVwISsMvrGJQqqx6FNXDQWM0u+dX3qGzwu6Xuyn2nhPCzq5gPlcU0Djo7pBNKtgXd3tOhg0ytMxeOcU5u4GcnWxpVmYGo4efaEcIt9/8ttxJXM9DaFFIIYFPjSyfcNJnxsWPdMr279+VXvPv1EX7RGuxYeFQttvd45+uU+NB1041HhBN3mB2+brGnmcUFpUx+/S9A2DQCG/jQDWvm1D5cKHeCAA+9PdbB5vwL8w3wPD2LxIY9JMiO4ZDV5tDR0I8TCWsEhRUrhUhDzrtQB9tCf0xFFxQB0VViDI/uO42AGT4zllEuELzlKEPrZrOpk7LFVuBxQtviMFp99WJppVcuZxDrbaPAKfqL+M+kwraIR+e/U5Dh67yJ8e0q6 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. Signed-off-by: Mike Rapoport (IBM) --- arch/arm/Kconfig | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 929e646e84b9..0b15384c62e6 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1354,17 +1354,19 @@ config ARM_MODULE_PLTS configurations. If unsure, say y. config ARCH_FORCE_MAX_ORDER - int "Maximum zone order" + int "Order of maximal physically contiguous allocations" default "11" if SOC_AM33XX default "8" if SA1111 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. config ALIGNMENT_TRAP def_bool CPU_CP15_MMU -- 2.35.1