selftests/landlock: Add test to check rule tied to covered mount point

This test checks that a rule on a directory used as a mount point does
not grant access to the mount covering it.  It is a generalization of
the bind mount case in layout3_fs.hostfs.release_inodes [1] that tests
hidden mount points.

Cc: Günther Noack <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Tingmao Wang <[email protected]>
Link: https://lore.kernel.org/r/[email protected] [1]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mickaël Salaün <[email protected]>

0 files changed, 0 insertions, 0 deletions