landlock: Move filesystem helpers and add a new one
authorMickaël Salaün <mic@digikod.net>
Fri, 6 May 2022 16:10:55 +0000 (18:10 +0200)
committerMickaël Salaün <mic@digikod.net>
Mon, 23 May 2022 11:27:58 +0000 (13:27 +0200)
commit9da82b20fde95814af721a2a7b1796a5b4a3d78e
treed75fd6cc64d4afce5ab8e4170f1b5a85503be383
parent8ba0005ff418ec356e176b26eaa04a6ac755d05b
landlock: Move filesystem helpers and add a new one

Move the SB_NOUSER and IS_PRIVATE dentry check to a standalone
is_nouser_or_private() helper.  This will be useful for a following
commit.

Move get_mode_access() and maybe_remove() to make them usable by new
code provided by a following commit.

Reviewed-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Link: https://lore.kernel.org/r/20220506161102.525323-6-mic@digikod.net
security/landlock/fs.c