Overlayfs had a bug that hardlinks don't share inode, if
chmod/chown/etc. is performed on one of the links then the inode
belonging to the other one won't be updated. The following patch
fixed this issue:
51f7e52 ovl: share inode for hard link
This is a simple test that has nothing overlayfs specific, so make
it a generic test.
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
Eryu Guan