The quilt patch titled
Subject: mm: enable PTE markers by default
has been removed from the -mm tree. Its filename was
mm-enable-pte-markers-by-default.patch
This patch was dropped because it was merged into the mm-stable branch\nof git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Peter Xu <peterx@xxxxxxxxxx>
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.
[peterx@xxxxxxxxxx: hide PTE_MARKER option]
Link: https://lkml.kernel.org/r/20220419202531.27415-1-peterx@xxxxxxxxxx
Link: https://lkml.kernel.org/r/20220405014929.15158-1-peterx@xxxxxxxxxx
Signed-off-by: Peter Xu <peterx@xxxxxxxxxx>
Cc: Alistair Popple <apopple@xxxxxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Cc: Axel Rasmussen <axelrasmussen@xxxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Jerome Glisse <jglisse@xxxxxxxxxx>
Cc: "Kirill A . Shutemov" <kirill@xxxxxxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Cc: Mike Rapoport <rppt@xxxxxxxxxxxxxxxxxx>
Cc: Nadav Amit <nadav.amit@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/Kconfig | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
--- a/mm/Kconfig~mm-enable-pte-markers-by-default
+++ a/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
_
Patches currently in -mm which might be from peterx@xxxxxxxxxx are
