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 701F5C3527D for ; Wed, 6 Apr 2022 01:56:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1456795AbiDFB5v (ORCPT ); Tue, 5 Apr 2022 21:57:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37644 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241002AbiDEUpv (ORCPT ); Tue, 5 Apr 2022 16:45:51 -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 AD240DA0A5 for ; Tue, 5 Apr 2022 13:22:27 -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 273FFB81FE5 for ; Tue, 5 Apr 2022 20:17:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id AE9CAC385A0; Tue, 5 Apr 2022 20:17:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1649189841; bh=OXKPOjRhdQaiunTKXjv2c0q4w3RjCe0hDMubmvzqG9I=; h=Date:To:From:Subject:From; b=wDMcF72pvTic9+pgigyfDlNX9Ymir+AfL4jyDtjHvfBDtzLYSD2R5TEGSO32Bqagz 8zTF7T2DEmZCSr7re+s51wcgrjfQi2ExsehQc81B3OEZISnLxav4h0pI1vwU8MSPNn urCucGEmvj4lxWZMNFSyXtZ4BGQmPB+sMz12GlQg= Date: Tue, 05 Apr 2022 13:17:21 -0700 To: mm-commits@vger.kernel.org, willy@infradead.org, rppt@linux.vnet.ibm.com, nadav.amit@gmail.com, mike.kravetz@oracle.com, kirill@shutemov.name, jglisse@redhat.com, hughd@google.com, david@redhat.com, axelrasmussen@google.com, apopple@nvidia.com, aarcange@redhat.com, peterx@redhat.com, akpm@linux-foundation.org From: Andrew Morton Subject: + mm-enable-pte-markers-by-default.patch added to -mm tree Message-Id: <20220405201721.AE9CAC385A0@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: mm: enable PTE markers by default has been added to the -mm tree. Its filename is mm-enable-pte-markers-by-default.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/mm-enable-pte-markers-by-default.patch and later at https://ozlabs.org/~akpm/mmotm/broken-out/mm-enable-pte-markers-by-default.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Peter Xu Subject: mm: enable PTE markers by default Enable PTE markers by default. On x86_64 it means it'll auto-enable PTE_MARKER_UFFD_WP as well. Link: https://lkml.kernel.org/r/20220405014929.15158-1-peterx@redhat.com Signed-off-by: Peter Xu Cc: Alistair Popple Cc: Andrea Arcangeli Cc: Axel Rasmussen Cc: David Hildenbrand Cc: Hugh Dickins Cc: Jerome Glisse Cc: "Kirill A . Shutemov" Cc: Matthew Wilcox Cc: Mike Kravetz Cc: Mike Rapoport Cc: Nadav Amit Signed-off-by: Andrew Morton --- mm/Kconfig | 2 ++ 1 file changed, 2 insertions(+) --- a/mm/Kconfig~mm-enable-pte-markers-by-default +++ a/mm/Kconfig @@ -911,12 +911,14 @@ config ANON_VMA_NAME config PTE_MARKER bool "Marker PTEs support" + default y help Allows to create marker PTEs for file-backed memory. config PTE_MARKER_UFFD_WP bool "Marker PTEs support for userfaultfd write protection" + default y depends on PTE_MARKER && HAVE_ARCH_USERFAULTFD_WP help _ Patches currently in -mm which might be from peterx@redhat.com are mm-introduce-pte_marker-swap-entry.patch mm-teach-core-mm-about-pte-markers.patch mm-check-against-orig_pte-for-finish_fault.patch mm-uffd-pte_marker_uffd_wp.patch mm-shmem-take-care-of-uffdio_copy_mode_wp.patch mm-shmem-handle-uffd-wp-special-pte-in-page-fault-handler.patch mm-shmem-persist-uffd-wp-bit-across-zapping-for-file-backed.patch mm-shmem-allow-uffd-wr-protect-none-pte-for-file-backed-mem.patch mm-shmem-allows-file-back-mem-to-be-uffd-wr-protected-on-thps.patch mm-shmem-handle-uffd-wp-during-fork.patch mm-hugetlb-introduce-huge-pte-version-of-uffd-wp-helpers.patch mm-hugetlb-hook-page-faults-for-uffd-write-protection.patch mm-hugetlb-take-care-of-uffdio_copy_mode_wp.patch mm-hugetlb-handle-uffdio_writeprotect.patch mm-hugetlb-handle-pte-markers-in-page-faults.patch mm-hugetlb-allow-uffd-wr-protect-none-ptes.patch mm-hugetlb-only-drop-uffd-wp-special-pte-if-required.patch mm-hugetlb-handle-uffd-wp-during-fork.patch mm-khugepaged-dont-recycle-vma-pgtable-if-uffd-wp-registered.patch mm-pagemap-recognize-uffd-wp-bit-for-shmem-hugetlbfs.patch mm-uffd-enable-write-protection-for-shmem-hugetlbfs.patch mm-enable-pte-markers-by-default.patch selftests-uffd-enable-uffd-wp-for-shmem-hugetlbfs.patch