diff options
| author | Thomas Weißschuh <linux@weissschuh.net> | 2023-06-30 11:08:53 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-08-18 19:12:01 +0200 |
| commit | 626e98cb0366e66bdc2088918aecabee1fc6c4b2 (patch) | |
| tree | f8304287af8e22300aaf0c1bc4609e24aa825f3f /mm/Kconfig | |
| parent | mm: remove page_rmapping() (diff) | |
| download | linux-626e98cb0366e66bdc2088918aecabee1fc6c4b2.tar.xz linux-626e98cb0366e66bdc2088918aecabee1fc6c4b2.zip | |
mm: make MEMFD_CREATE into a selectable config option
The memfd_create() syscall, enabled by CONFIG_MEMFD_CREATE, is useful on
its own even when not required by CONFIG_TMPFS or CONFIG_HUGETLBFS.
Split it into its own proper bool option that can be enabled by users.
Move that option into mm/ where the code itself also lies. Also add
"select" statements to CONFIG_TMPFS and CONFIG_HUGETLBFS so they
automatically enable CONFIG_MEMFD_CREATE as before.
Link: https://lkml.kernel.org/r/20230630-config-memfd-v1-1-9acc3ae38b5a@weissschuh.net
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Tested-by: Zhangjin Wu <falcon@tinylab.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/Kconfig')
| -rw-r--r-- | mm/Kconfig | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/Kconfig b/mm/Kconfig index 09130434e30d..22acffd9009d 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -1144,6 +1144,9 @@ config KMAP_LOCAL_NON_LINEAR_PTE_ARRAY config IO_MAPPING bool +config MEMFD_CREATE + bool "Enable memfd_create() system call" if EXPERT + config SECRETMEM default y bool "Enable memfd_secret() system call" if EXPERT |