* Pre Linux 5.9, handle_inode_event did not exist. This is was covered by handle_event.
* handle_event have a lot of changes, neither in arguments counts and arguments arrangements.
* Use fsnotify_add_mark_locked instead of fsnotify_add_inode_mark for kernel pre 4.12
NOTE: fsnotify_add_mark_locked is not tested! Report bugs if you found it!
Signed-off-by: Faris <rissu.ntk@gmail.com>