| 1 | """Verify that filelock holds mutual exclusion on a target filesystem, and exit non-zero when it does not. |
| 2 | |
| 3 | Point it at a directory on the filesystem under test (an NFS or SMB mount, say) and it runs a mutual-exclusion check: |
| 4 | several processes each take the lock a fixed number of times and record the wall-clock interval they spend holding it. |