linux-toradex.git/tools/testing/selftests/filesystems/mount-notify/Makefile, branch master

selftests/fs/mount-notify: add a test variant running inside userns

2025-05-12T09:40:13+00:00

unshare userns in addition to mntns and verify that:

1. watching tmpfs mounted inside userns is allowed with any mark type
2. watching orig root with filesystem mark type is not allowed
3. watching mntns of orig userns is not allowed
4. watching mntns in userns where fanotify_init was called is allowed

mount events are only tested with the last case of mntns mark.

Signed-off-by: Amir Goldstein 
Link: https://lore.kernel.org/20250509133240.529330-9-amir73il@gmail.com
Reviewed-by: Christian Brauner 
Signed-off-by: Christian Brauner

selftests/filesystems: create get_unique_mnt_id() helper

2025-05-12T09:40:12+00:00

Add helper to utils.c and use it in mount-notify and statmount tests.

Linking with utils.c drags in a dependecy with libcap, so add it to the
Makefile of the tests.

Reviewed-by: John Hubbard 
Signed-off-by: Amir Goldstein 
Link: https://lore.kernel.org/20250509133240.529330-7-amir73il@gmail.com
Reviewed-by: Christian Brauner 
Signed-off-by: Christian Brauner

selftests/fs/mount-notify: build with tools include dir

2025-05-12T09:40:12+00:00

Copy the fanotify uapi header files to the tools include dir
and define __kernel_fsid_t to decouple dependency with headers_install
and then remove the redundant re-definitions of fanotify macros.

Reviewed-by: John Hubbard 
Signed-off-by: Amir Goldstein 
Link: https://lore.kernel.org/20250509133240.529330-6-amir73il@gmail.com
Reviewed-by: Christian Brauner 
Signed-off-by: Christian Brauner

selftests: add tests for mount notification

2025-03-11T11:04:02+00:00

Provide coverage for all mnt_notify_add() instances.

Signed-off-by: Miklos Szeredi 
Link: https://lore.kernel.org/r/20250307204046.322691-1-mszeredi@redhat.com
Signed-off-by: Christian Brauner