From: Peter Xu <peterx@redhat.com>
To: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Cc: peterx@redhat.com, Nadav Amit <nadav.amit@gmail.com>,
Hugh Dickins <hughd@google.com>,
David Hildenbrand <david@redhat.com>,
Axel Rasmussen <axelrasmussen@google.com>,
Matthew Wilcox <willy@infradead.org>,
Alistair Popple <apopple@nvidia.com>,
Mike Rapoport <rppt@linux.vnet.ibm.com>,
Andrew Morton <akpm@linux-foundation.org>,
Jerome Glisse <jglisse@redhat.com>,
Mike Kravetz <mike.kravetz@oracle.com>,
"Kirill A . Shutemov" <kirill@shutemov.name>,
Andrea Arcangeli <aarcange@redhat.com>
Subject: [PATCH v7 22/23] mm: Enable PTE markers by default
Date: Fri, 4 Mar 2022 13:17:07 +0800 [thread overview]
Message-ID: <20220304051708.86193-23-peterx@redhat.com> (raw)
In-Reply-To: <20220304051708.86193-1-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, 1 insertion(+), 1 deletion(-)
diff --git a/mm/Kconfig b/mm/Kconfig
index a80ea8721885..93e90efc4ab7 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -901,7 +901,7 @@ config ANON_VMA_NAME
difference in their name.
config PTE_MARKER
- def_bool n
+ def_bool y
bool "Marker PTEs support"
help
--
2.32.0
next prev parent reply other threads:[~2022-03-04 5:20 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-04 5:16 [PATCH v7 00/23] userfaultfd-wp: Support shmem and hugetlbfs Peter Xu
2022-03-04 5:16 ` [PATCH v7 01/23] mm: Introduce PTE_MARKER swap entry Peter Xu
2022-03-04 5:16 ` [PATCH v7 02/23] mm: Teach core mm about pte markers Peter Xu
2022-03-04 5:16 ` [PATCH v7 03/23] mm: Check against orig_pte for finish_fault() Peter Xu
2022-03-04 5:16 ` [PATCH v7 04/23] mm/uffd: PTE_MARKER_UFFD_WP Peter Xu
2022-03-04 5:16 ` [PATCH v7 05/23] mm/shmem: Take care of UFFDIO_COPY_MODE_WP Peter Xu
2022-03-04 5:16 ` [PATCH v7 06/23] mm/shmem: Handle uffd-wp special pte in page fault handler Peter Xu
2022-03-04 5:16 ` [PATCH v7 07/23] mm/shmem: Persist uffd-wp bit across zapping for file-backed Peter Xu
2022-03-04 5:16 ` [PATCH v7 08/23] mm/shmem: Allow uffd wr-protect none pte for file-backed mem Peter Xu
2022-03-04 5:16 ` [PATCH v7 09/23] mm/shmem: Allows file-back mem to be uffd wr-protected on thps Peter Xu
2022-03-04 5:16 ` [PATCH v7 10/23] mm/shmem: Handle uffd-wp during fork() Peter Xu
2022-03-04 5:16 ` [PATCH v7 11/23] mm/hugetlb: Introduce huge pte version of uffd-wp helpers Peter Xu
2022-03-04 5:16 ` [PATCH v7 12/23] mm/hugetlb: Hook page faults for uffd write protection Peter Xu
2022-03-04 5:16 ` [PATCH v7 13/23] mm/hugetlb: Take care of UFFDIO_COPY_MODE_WP Peter Xu
2022-03-04 5:16 ` [PATCH v7 14/23] mm/hugetlb: Handle UFFDIO_WRITEPROTECT Peter Xu
2022-03-04 5:17 ` [PATCH v7 15/23] mm/hugetlb: Handle pte markers in page faults Peter Xu
2022-03-04 5:17 ` [PATCH v7 16/23] mm/hugetlb: Allow uffd wr-protect none ptes Peter Xu
2022-03-04 5:17 ` [PATCH v7 17/23] mm/hugetlb: Only drop uffd-wp special pte if required Peter Xu
2022-03-04 5:17 ` [PATCH v7 18/23] mm/hugetlb: Handle uffd-wp during fork() Peter Xu
2022-03-04 5:17 ` [PATCH v7 19/23] mm/khugepaged: Don't recycle vma pgtable if uffd-wp registered Peter Xu
2022-03-04 5:17 ` [PATCH v7 20/23] mm/pagemap: Recognize uffd-wp bit for shmem/hugetlbfs Peter Xu
2022-03-04 5:17 ` [PATCH v7 21/23] mm/uffd: Enable write protection for shmem & hugetlbfs Peter Xu
2022-03-04 5:17 ` Peter Xu [this message]
2022-03-04 5:17 ` [PATCH v7 23/23] selftests/uffd: Enable uffd-wp for shmem/hugetlbfs Peter Xu
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