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From: Peter Xu <peterx@redhat.com>
To: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Cc: Mike Kravetz <mike.kravetz@oracle.com>,
	Nadav Amit <nadav.amit@gmail.com>,
	Matthew Wilcox <willy@infradead.org>,
	Mike Rapoport <rppt@linux.vnet.ibm.com>,
	David Hildenbrand <david@redhat.com>,
	Hugh Dickins <hughd@google.com>,
	Jerome Glisse <jglisse@redhat.com>,
	"Kirill A . Shutemov" <kirill@shutemov.name>,
	Andrea Arcangeli <aarcange@redhat.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Axel Rasmussen <axelrasmussen@google.com>,
	Alistair Popple <apopple@nvidia.com>,
	peterx@redhat.com
Subject: [PATCH v8 22/23] mm: Enable PTE markers by default
Date: Mon,  4 Apr 2022 21:49:29 -0400	[thread overview]
Message-ID: <20220405014929.15158-1-peterx@redhat.com> (raw)
In-Reply-To: <20220405014646.13522-1-peterx@redhat.com>

Enable PTE markers by default.  On x86_64 it means it'll auto-enable
PTE_MARKER_UFFD_WP as well.

Signed-off-by: Peter Xu <peterx@redhat.com>
---
 mm/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mm/Kconfig b/mm/Kconfig
index 6e7c2d59fa96..3eca34c864c5 100644
--- a/mm/Kconfig
+++ b/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
-- 
2.32.0


  parent reply	other threads:[~2022-04-05  2:43 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-05  1:46 [PATCH v8 00/23] userfaultfd-wp: Support shmem and hugetlbfs Peter Xu
2022-04-05  1:46 ` [PATCH v8 01/23] mm: Introduce PTE_MARKER swap entry Peter Xu
2022-04-12  1:07   ` Alistair Popple
2022-04-12 19:45     ` Peter Xu
2022-04-13  0:30       ` Alistair Popple
2022-04-13 13:44         ` Peter Xu
2022-04-19  8:25   ` Alistair Popple
2022-04-19 19:44     ` Peter Xu
2022-04-05  1:48 ` [PATCH v8 02/23] mm: Teach core mm about pte markers Peter Xu
2022-04-12  1:22   ` Alistair Popple
2022-04-12 19:53     ` Peter Xu
2022-04-05  1:48 ` [PATCH v8 03/23] mm: Check against orig_pte for finish_fault() Peter Xu
2022-04-12  2:05   ` Alistair Popple
2022-04-12 19:54     ` Peter Xu
     [not found]   ` <CGME20220413140330eucas1p167da41e079712b829ef8237dc27b049c@eucas1p1.samsung.com>
2022-04-13 14:03     ` Marek Szyprowski
2022-04-13 16:43       ` Peter Xu
2022-04-14  7:51         ` Marek Szyprowski
2022-04-14 16:30           ` Peter Xu
2022-04-14 20:57             ` Andrew Morton
2022-04-14 21:08               ` Peter Xu
2022-04-15 14:21   ` Guenter Roeck
2022-04-15 14:41     ` Peter Xu
2022-04-05  1:48 ` [PATCH v8 04/23] mm/uffd: PTE_MARKER_UFFD_WP Peter Xu
2022-04-06  1:41   ` kernel test robot
2022-04-05  1:48 ` [PATCH v8 05/23] mm/shmem: Take care of UFFDIO_COPY_MODE_WP Peter Xu
2022-04-05  1:48 ` [PATCH v8 06/23] mm/shmem: Handle uffd-wp special pte in page fault handler Peter Xu
2022-05-11 16:30   ` David Hildenbrand
2022-05-12 16:34     ` Peter Xu
2022-04-05  1:48 ` [PATCH v8 07/23] mm/shmem: Persist uffd-wp bit across zapping for file-backed Peter Xu
2022-04-05  1:48 ` [PATCH v8 08/23] mm/shmem: Allow uffd wr-protect none pte for file-backed mem Peter Xu
2022-04-05  1:48 ` [PATCH v8 09/23] mm/shmem: Allows file-back mem to be uffd wr-protected on thps Peter Xu
2022-04-05  1:48 ` [PATCH v8 10/23] mm/shmem: Handle uffd-wp during fork() Peter Xu
2022-04-06  6:16   ` kernel test robot
2022-04-06 12:18     ` Peter Xu
2022-04-06 12:18       ` Peter Xu
2022-04-05  1:48 ` [PATCH v8 11/23] mm/hugetlb: Introduce huge pte version of uffd-wp helpers Peter Xu
2022-04-05  1:49 ` [PATCH v8 12/23] mm/hugetlb: Hook page faults for uffd write protection Peter Xu
2022-04-05  1:49 ` [PATCH v8 13/23] mm/hugetlb: Take care of UFFDIO_COPY_MODE_WP Peter Xu
2022-04-05  1:49 ` [PATCH v8 14/23] mm/hugetlb: Handle UFFDIO_WRITEPROTECT Peter Xu
2022-04-05  1:49 ` [PATCH v8 15/23] mm/hugetlb: Handle pte markers in page faults Peter Xu
2022-04-06 13:37   ` kernel test robot
2022-04-06 15:02     ` Peter Xu
2022-04-06 15:02       ` Peter Xu
2022-04-05  1:49 ` [PATCH v8 16/23] mm/hugetlb: Allow uffd wr-protect none ptes Peter Xu
2022-04-05  1:49 ` [PATCH v8 17/23] mm/hugetlb: Only drop uffd-wp special pte if required Peter Xu
2022-04-05  1:49 ` [PATCH v8 18/23] mm/hugetlb: Handle uffd-wp during fork() Peter Xu
2022-04-05  1:49 ` [PATCH v8 19/23] mm/khugepaged: Don't recycle vma pgtable if uffd-wp registered Peter Xu
2022-04-05  1:49 ` [PATCH v8 20/23] mm/pagemap: Recognize uffd-wp bit for shmem/hugetlbfs Peter Xu
2022-04-05  1:49 ` [PATCH v8 21/23] mm/uffd: Enable write protection for shmem & hugetlbfs Peter Xu
2022-04-05  1:49 ` Peter Xu [this message]
2022-04-19 15:13   ` [PATCH v8 22/23] mm: Enable PTE markers by default Johannes Weiner
2022-04-19 19:59     ` Peter Xu
2022-04-19 20:14       ` Johannes Weiner
2022-04-19 20:28         ` Peter Xu
2022-04-19 21:24           ` Johannes Weiner
2022-04-19 22:01             ` Peter Xu
2022-04-20 13:46               ` Johannes Weiner
2022-04-20 14:25                 ` Peter Xu
2022-04-05  1:49 ` [PATCH v8 23/23] selftests/uffd: Enable uffd-wp for shmem/hugetlbfs Peter Xu
2022-04-05 22:16 ` [PATCH v8 00/23] userfaultfd-wp: Support shmem and hugetlbfs Andrew Morton
2022-04-05 22:42   ` Peter Xu
2022-04-05 22:49     ` Andrew Morton
2022-04-05 23:02       ` Peter Xu
2022-04-05 23:08         ` Andrew Morton
2022-05-10 19:05 ` Andrew Morton

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