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[2620:137:e000::1:20]) by mx.google.com with ESMTP id v25-20020a634659000000b0050bcf249337si20949585pgk.502.2023.03.24.23.29.54; Fri, 24 Mar 2023 23:30:06 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b="frI6wY/7"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231417AbjCYGJN (ORCPT + 99 others); Sat, 25 Mar 2023 02:09:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55482 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232073AbjCYGJD (ORCPT ); Sat, 25 Mar 2023 02:09:03 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8A502B740; Fri, 24 Mar 2023 23:09:02 -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 3A5DEB826F8; Sat, 25 Mar 2023 06:09:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6F625C4339B; Sat, 25 Mar 2023 06:08:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1679724540; bh=AZxdkgPPk5uvF+BQxbM9LjXE7h2xyoTV5CHwXU/8HBE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=frI6wY/7y9Ugq/kDdNPQDTAIrUL1Ibp1tX6t7Wkvuc4peDLOUS0FLn14dUsWo/UVP KtNbpypjIDQfLX5Sa2evDMHXVx61HvtQHFOB9PKZEAXW6tzkIYZ7paJcUl7b6QDkDd XhemG7a6NpMMwzsAA5r8YA40P6xhw2fdg7YT8O/KlzdC1TBydkuv+gJo7kkTOrB7+s enMaqi5rZNqjbwsUTqTpvzzTnA0aG8BdvkEhvLbQnSOQX291OOqIQDs7NKNHFmtArR Nv401z48Zg8rkh8YIDSIShaFEhib6B5rPElKdicGjHXH6RCXcm7FcU+nr/k4vFBvHI +2xif/sknb2gQ== 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 02/14] arm64: drop ranges in definition of ARCH_FORCE_MAX_ORDER Date: Sat, 25 Mar 2023 09:08:16 +0300 Message-Id: <20230325060828.2662773-3-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-Spam-Status: No, score=-2.5 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,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: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1761320167677800049?= X-GMAIL-MSGID: =?utf-8?q?1761320167677800049?= From: "Mike Rapoport (IBM)" It is not a good idea to change fundamental parameters of core memory management. Having predefined ranges suggests that the values within those ranges are sensible, but one has to *really* understand implications of changing MAX_ORDER before actually amending it and ranges don't help here. Drop ranges in definition of ARCH_FORCE_MAX_ORDER and make its prompt visible only if EXPERT=y Acked-by: Kirill A. Shutemov Reviewed-by: Zi Yan Signed-off-by: Mike Rapoport (IBM) --- arch/arm64/Kconfig | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index e60baf7859d1..7324032af859 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1487,11 +1487,9 @@ config XEN # 16K | 27 | 14 | 13 | 11 | # 64K | 29 | 16 | 13 | 13 | config ARCH_FORCE_MAX_ORDER - int "Maximum zone order" if ARM64_4K_PAGES || ARM64_16K_PAGES + int "Maximum zone order" if EXPERT && (ARM64_4K_PAGES || ARM64_16K_PAGES) default "13" if ARM64_64K_PAGES - range 11 13 if ARM64_16K_PAGES default "11" if ARM64_16K_PAGES - range 10 15 if ARM64_4K_PAGES default "10" help The kernel memory allocator divides physically contiguous memory