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mm/Kconfig: make userfaultfd a menuconfig

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PTE_MARKER_UFFD_WP is a subconfig for userfaultfd.  To make it clear,
switch to use menuconfig for userfaultfd.

Link: https://lkml.kernel.org/r/20231123224204.1060152-1-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Peter Xu 2023-11-23 17:42:04 -05:00 committed by Andrew Morton
parent f39fb633fe
commit 97219cc358
1 changed files with 9 additions and 7 deletions
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16
mm/Kconfig
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@ -1201,13 +1201,6 @@ config ANON_VMA_NAME
area from being merged with adjacent virtual memory areas due to the
difference in their name.
config USERFAULTFD
bool "Enable userfaultfd() system call"
depends on MMU
help
Enable the userfaultfd() system call that allows to intercept and
handle page faults in userland.
config HAVE_ARCH_USERFAULTFD_WP
bool
help
@ -1218,6 +1211,14 @@ config HAVE_ARCH_USERFAULTFD_MINOR
help
Arch has userfaultfd minor fault support
menuconfig USERFAULTFD
bool "Enable userfaultfd() system call"
depends on MMU
help
Enable the userfaultfd() system call that allows to intercept and
handle page faults in userland.
if USERFAULTFD
config PTE_MARKER_UFFD_WP
bool "Userfaultfd write protection support for shmem/hugetlbfs"
default y
@ -1227,6 +1228,7 @@ config PTE_MARKER_UFFD_WP
Allows to create marker PTEs for userfaultfd write protection
purposes. It is required to enable userfaultfd write protection on
file-backed memory types like shmem and hugetlbfs.
endif # USERFAULTFD
# multi-gen LRU {
config LRU_GEN