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 X-Spam-Level: X-Spam-Status: No, score=-17.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CA2C2C433DB for ; Thu, 11 Feb 2021 06:23:26 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 81B5F64D5D for ; Thu, 11 Feb 2021 06:23:26 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 81B5F64D5D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:MIME-Version:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:References:In-Reply-To:Message-Id:Date:Subject:To: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=2+5qWn0+P9Uy7IaZQyTOCOwTrohTLzHrNL9Dbec08MM=; b=mkrxjjB3pILWwjR2d07bF8/T6f 8II4wj1hIqQ7GnW3gdnnN+upvUdp4c8kAKJ27qimVS9k3pVL718nlrZFWKDFTmrtDkqMn391MRDIH fC4mf8ZRjuV0xQejsmDFE47pu0OlLdBcjhkG7FuHyN0SOQSejm93LuHP3Z3pVgqfJPuzWJqB7aCul czUArcO74bQuK0KGM5N2+ohsKR9HUoKwvqk5tNRcDNvfXNEMOzVLI6I0juAisz5CPdGNvu9yrt1Uj cJdix3xGPxYXJZUlMMV3FIhpKDvsl+8LgKeg12GlHEyZVtlVowtrttG7Zyai8waPp/zoPc2Um7i50 kmGCAnJg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1lA5Mk-0007Sz-TX; Thu, 11 Feb 2021 06:22:14 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1lA5Me-0007RP-IB for linux-arm-kernel@lists.infradead.org; Thu, 11 Feb 2021 06:22:09 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 1E6CC1396; Wed, 10 Feb 2021 22:22:08 -0800 (PST) Received: from p8cg001049571a15.arm.com (unknown [10.163.94.253]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 804593F73B; Wed, 10 Feb 2021 22:22:03 -0800 (PST) From: Anshuman Khandual To: linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, catalin.marinas@arm.com, akpm@linux-foundation.org, will@kernel.org Subject: [PATCH 2/3] arm64/hugetlb: Enable HUGETLB_PAGE_SIZE_VARIABLE Date: Thu, 11 Feb 2021 11:52:10 +0530 Message-Id: <1613024531-19040-3-git-send-email-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1613024531-19040-1-git-send-email-anshuman.khandual@arm.com> References: <1613024531-19040-1-git-send-email-anshuman.khandual@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210211_012208_706939_547096F9 X-CRM114-Status: GOOD ( 12.40 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , David Hildenbrand , Anshuman Khandual , linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, Robin Murphy , Christoph Hellwig , Marek Szyprowski MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org MAX_ORDER which invariably depends on FORCE_MAX_ZONEORDER can be a variable for a given page size, depending on whether TRANSPARENT_HUGEPAGE is enabled or not. In certain page size and THP combinations HUGETLB_PAGE_ORDER can be greater than MAX_ORDER, making it unusable as pageblock_order. This enables HUGETLB_PAGE_SIZE_VARIABLE making pageblock_order a variable rather than the compile time constant HUGETLB_PAGE_ORDER which could break MAX_ORDER rule for certain configurations. Cc: Catalin Marinas Cc: Will Deacon Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual --- arch/arm64/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index f39568b28ec1..8e3a5578f663 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1909,6 +1909,10 @@ config ARCH_ENABLE_THP_MIGRATION def_bool y depends on TRANSPARENT_HUGEPAGE +config HUGETLB_PAGE_SIZE_VARIABLE + def_bool y + depends on HUGETLB_PAGE + menu "Power management options" source "kernel/power/Kconfig" -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel