From patchwork Thu Mar 23 09:21:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Rapoport X-Patchwork-Id: 13185359 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C9B67C6FD1D for ; Thu, 23 Mar 2023 09:24:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=zMDQacLZafhd3lw6hZU/25zLh6rkaE+zP8or2yahjlc=; b=rlBE5n9pbPtUl7 TdDVwBU/QYnpOwEd4jYSdvpN46ARHaHuXT1iXekC6B36ODgxCFVIEtg7cxO1/aTBcm2kzi23w/DK5 Egfn44SAD0XmrjdmShi315NWjBeClGoOi3F/brrYLCgdlbx6nfY9YClq57e+P6nfQtNe1ZCto4OGr gw3sFLVs7ylyQ/HEfhtcCTzlFJeY0d769w0Id91n5B1jOMVs2j0ioc3pHVR+6YzM3cjNxfrdwFGIW e6L20+RxuI2iU8z319PyxRjD64RX5bBLBZPuzz1tv6mVEpeoaZlqwuhUyXjg3206u0zW3SJnp+1Xt m9MRjG6RsN0CLjVzLXSQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pfHAw-001Qp8-1B; Thu, 23 Mar 2023 09:24:02 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pfHAn-001Qj6-1A for linux-arm-kernel@lists.infradead.org; Thu, 23 Mar 2023 09:23:54 +0000 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 E7C0E62567; Thu, 23 Mar 2023 09:23:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 57854C433A0; Thu, 23 Mar 2023 09:23:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1679563432; bh=h6B+59Tw/wfggMAxASThb2CqM8SDBv67+wW2LDMN9Jw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bXT7tVFQRhfcw151cmushy4biLsPbWo6PzWcZLPclsdZZu0AHI/gHXPCin5Sg9iiA 2jk1L0YVy7Qe/xDRPG5nOHZxPuEwCxatggeE5zw2R5dQXNP451ThM1w/k3c6D25V2O N+fe/J9ocQzrTj5ZRLDbYNoj8L7Fg7BoJUvOHZovfKRiaVzD97DUE5sICsn6MFA/LY pi2Jmg0MAtEvLy9L7TPVXS9dEOiqkceSsUxLk5XOUJZY6EZeficShFvwWbnG3PVgeZ ReZTduniWcIdQc0MmOkZSG5un3YfSersJkiDN7rNBFhp80ssYVvFAzH/URVEBtzC7R bB6ljs+LiityQ== 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 13/14] sparc: reword ARCH_FORCE_MAX_ORDER prompt and help text Date: Thu, 23 Mar 2023 11:21:55 +0200 Message-Id: <20230323092156.2545741-14-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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230323_022353_439236_9C5905EC X-CRM114-Status: GOOD ( 15.19 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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) --- 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"