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| author | ZhangPeng <zhangpeng362@huawei.com> | 2023-03-01 11:06:27 +0100 |
|---|---|---|
| committer | Luis Chamberlain <mcgrof@kernel.org> | 2023-03-21 06:39:03 +0100 |
| commit | 2d337b7158f8c38dacf8394028ab87b8a25ed707 (patch) | |
| tree | 6b1a7d7d74ce01347a60a5160a79638a275529bc /fs/userfaultfd.c | |
| parent | Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux (diff) | |
| download | linux-2d337b7158f8c38dacf8394028ab87b8a25ed707.tar.xz linux-2d337b7158f8c38dacf8394028ab87b8a25ed707.zip | |
userfaultfd: move unprivileged_userfaultfd sysctl to its own file
The sysctl_unprivileged_userfaultfd is part of userfaultfd, move it to
its own file.
Signed-off-by: ZhangPeng <zhangpeng362@huawei.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Diffstat (limited to 'fs/userfaultfd.c')
| -rw-r--r-- | fs/userfaultfd.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c index 44d1ee429eb0..d01f803a6b11 100644 --- a/fs/userfaultfd.c +++ b/fs/userfaultfd.c @@ -32,7 +32,22 @@ #include <linux/swapops.h> #include <linux/miscdevice.h> -int sysctl_unprivileged_userfaultfd __read_mostly; +static int sysctl_unprivileged_userfaultfd __read_mostly; + +#ifdef CONFIG_SYSCTL +static struct ctl_table vm_userfaultfd_table[] = { + { + .procname = "unprivileged_userfaultfd", + .data = &sysctl_unprivileged_userfaultfd, + .maxlen = sizeof(sysctl_unprivileged_userfaultfd), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = SYSCTL_ZERO, + .extra2 = SYSCTL_ONE, + }, + { } +}; +#endif static struct kmem_cache *userfaultfd_ctx_cachep __read_mostly; @@ -2178,6 +2193,9 @@ static int __init userfaultfd_init(void) 0, SLAB_HWCACHE_ALIGN|SLAB_PANIC, init_once_userfaultfd_ctx); +#ifdef CONFIG_SYSCTL + register_sysctl_init("vm", vm_userfaultfd_table); +#endif return 0; } __initcall(userfaultfd_init); |