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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1B1AEECAAA1 for ; Sun, 23 Oct 2022 13:33:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230440AbiJWNd4 (ORCPT ); Sun, 23 Oct 2022 09:33:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48202 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230402AbiJWNdv (ORCPT ); Sun, 23 Oct 2022 09:33:51 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 42CAC3AE49; Sun, 23 Oct 2022 06:33:51 -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 EBFB0B80BFF; Sun, 23 Oct 2022 13:33:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 11926C4314B; Sun, 23 Oct 2022 13:33:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1666532028; bh=QJ7fR+gHywsczUhCwjPOdR2Nl2xq5s+MM7Zax4w8w9w=; h=From:To:Cc:Subject:Date:From; b=Y22/Nw6qhMXCSnZbqhtnLDFteTfssdSmaPHl1PMAiT1VRJoveIq/uCM0ERbB8h131 4sDIRXSjSdnNyY8heVMn78H9JBlSjFGUBEzNBN0WfG6fy5paB+J07Rmt/gbax7UpP7 BbBXon3Yfgn6RQTnKs/LY0SBUtZaGb+YS3fJAAYU0w7GLuiECDx+TjqyQHzDi9a7HE cSFn0brFJiP6dK7IAvjvUmrSjQV1XTkxHkBJRYCdzJc0TNOSPuTwin8/la2vRy0naR kdb++uEG6YhGrvaVccMsffZPkSKfmY7zRYlHt0hU//YhzCGPtZYTfmnJHnLme2VcPq V3M5NIC2fja9Q== From: guoren@kernel.org To: guoren@kernel.org, palmer@dabbelt.com, palmer@rivosinc.com, heiko@sntech.de, arnd@arndb.de, songmuchun@bytedance.com, catalin.marinas@arm.com, chenhuacai@loongson.cn, Conor.Dooley@microchip.com, paul.walmsley@sifive.com, aou@eecs.berkeley.edu Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, linux-mm@kvack.org, Guo Ren Subject: [PATCH 0/2] Enable ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP & fixup race condition on PG_dcache_clean Date: Sun, 23 Oct 2022 09:32:03 -0400 Message-Id: <20221023133205.3493564-1-guoren@kernel.org> X-Mailer: git-send-email 2.36.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Guo Ren The first patch fixup race condition on PG_dcache_clean which found in arm64. Then enable ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP and tested with simple hugetlbfs test case. # cat /proc/sys/vm/hugetlb_optimize_vmemmap 1 # echo 8 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages # mount -t hugetlbfs none test/ -o pagesize=2048k # ./myhugemap_test # umount test/ # echo 0 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages No problem found. Guo Ren (2): riscv: Fixup race condition on PG_dcache_clean in flush_icache_pte riscv: Enable ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP arch/riscv/Kconfig | 1 + arch/riscv/include/asm/cacheflush.h | 3 +++ arch/riscv/mm/cacheflush.c | 7 ++++++- 3 files changed, 10 insertions(+), 1 deletion(-) -- 2.36.1