diff options
| author | Peter Xu <[email protected]> | 2022-05-12 20:22:56 -0700 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2022-05-13 07:20:11 -0700 |
| commit | 81e0f15f2ef6dad7ccb9c03d8e61ef7ded836b38 (patch) | |
| tree | 354efff87a43d6b361730962f5ab864e7f06288a | |
| parent | b1f9e876862d8f7176299ec4fb2108bc1045cbc8 (diff) | |
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.
[[email protected]: hide PTE_MARKER option]
Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Peter Xu <[email protected]>
Cc: Alistair Popple <[email protected]>
Cc: Andrea Arcangeli <[email protected]>
Cc: Axel Rasmussen <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Hugh Dickins <[email protected]>
Cc: Jerome Glisse <[email protected]>
Cc: "Kirill A . Shutemov" <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: Mike Kravetz <[email protected]>
Cc: Mike Rapoport <[email protected]>
Cc: Nadav Amit <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
| -rw-r--r-- | mm/Kconfig | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/mm/Kconfig b/mm/Kconfig index 71c653260a44..fd6c9fe4b6ed 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -910,14 +910,16 @@ config ANON_VMA_NAME difference in their name. config PTE_MARKER - bool "Marker PTEs support" + bool help Allows to create marker PTEs for file-backed memory. config PTE_MARKER_UFFD_WP - bool "Marker PTEs support for userfaultfd write protection" - depends on PTE_MARKER && HAVE_ARCH_USERFAULTFD_WP + bool "Userfaultfd write protection support for shmem/hugetlbfs" + default y + depends on HAVE_ARCH_USERFAULTFD_WP + select PTE_MARKER help Allows to create marker PTEs for userfaultfd write protection |