[LU-18643] zconf_mount_clients() should not create a subdirectory that does not exist

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.17.0
• Affects Version/s: Lustre 2.15.0
• Labels: tests
• Severity: 2
• Assignee: Marc Vef
• Reporter: Marc Vef

Description

When calling zconf_mount_clients() with a FILESET, the Lustre client is mounted at the corresponding subdirectory specified by the FILESET.

However, when the subdirectory does not exist, it automatically creates it transparently. This does not seem to be intended (the caller should ensure the directory exists before mounting) and may hide bugs, e.g., when a test needs to verify that mounting against a non-existing directory is not possible.