From patchwork Fri Sep 30 09:26:09 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xie Yisheng X-Patchwork-Id: 9357865 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id A2B0A600C8 for ; Fri, 30 Sep 2016 09:31:04 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9367A29F49 for ; Fri, 30 Sep 2016 09:31:04 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 87D5629F4D; Fri, 30 Sep 2016 09:31:04 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id CC62929F49 for ; Fri, 30 Sep 2016 09:31:01 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.85_2 #1 (Red Hat Linux)) id 1bpu8S-0003dM-EN; Fri, 30 Sep 2016 09:29:40 +0000 Received: from szxga01-in.huawei.com ([58.251.152.64]) by bombadil.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1bpu7k-000358-An for linux-arm-kernel@lists.infradead.org; Fri, 30 Sep 2016 09:28:58 +0000 Received: from 172.24.1.136 (EHLO szxeml428-hub.china.huawei.com) ([172.24.1.136]) by szxrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id DRV37821; Fri, 30 Sep 2016 17:27:58 +0800 (CST) Received: from linux-ibm.site (10.175.102.37) by szxeml428-hub.china.huawei.com (10.82.67.183) with Microsoft SMTP Server id 14.3.235.1; Fri, 30 Sep 2016 17:27:47 +0800 From: Yisheng Xie To: , Subject: [PATCH v4 2/2] arm64 Kconfig: Select gigantic page Date: Fri, 30 Sep 2016 17:26:09 +0800 Message-ID: <1475227569-63446-3-git-send-email-xieyisheng1@huawei.com> X-Mailer: git-send-email 1.7.12.4 In-Reply-To: <1475227569-63446-1-git-send-email-xieyisheng1@huawei.com> References: <1475227569-63446-1-git-send-email-xieyisheng1@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.102.37] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160930_022856_886910_951C0F21 X-CRM114-Status: UNSURE ( 8.94 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, linux-mm@kvack.org, catalin.marinas@arm.com, guohanjun@huawei.com, will.deacon@arm.com, linux-kernel@vger.kernel.org, dave.hansen@intel.com, robh+dt@kernel.org, sudeep.holla@arm.com, n-horiguchi@ah.jp.nec.com, linux-arm-kernel@lists.infradead.org, mike.kravetz@oracle.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Arm64 supports gigantic page after commit 084bd29810a5 ("ARM64: mm: HugeTLB support.") however, it can only be allocated at boottime and can't be freed. This patch selects ARCH_HAS_GIGANTIC_PAGE to make gigantic pages can be allocated and freed at runtime for arch arm64. Acked-by: Michal Hocko Acked-by: Catalin Marinas Signed-off-by: Yisheng Xie Acked-by: Hillf Danton --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index bc3f00f..92217f6 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -9,6 +9,7 @@ config ARM64 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE select ARCH_HAS_ELF_RANDOMIZE select ARCH_HAS_GCOV_PROFILE_ALL + select ARCH_HAS_GIGANTIC_PAGE select ARCH_HAS_KCOV select ARCH_HAS_SG_CHAIN select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST