[LU-12626] Attempt to create existing net returns EINVAL

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.13.0, Lustre 2.12.3
• Labels: llnlfixready
• Severity: 3
• Assignee: Olaf Faaland
• Reporter: Olaf Faaland

Description

When "lnetctl net add" is called for an interface/net pair that already exists, the error code returned is EINVAL. It should be EEXIST, so the user knows that the net is already configured.

[olaf@diane lustre]$ sudo lnet/utils/lnetctl net add --net tcp1 --if enp0s3
[olaf@diane lustre]$ sudo lnet/utils/lnetctl net add --net tcp1 --if enp0s3
add:
    - net:
          errno: -22
          descr: "cannot add network: Invalid argument"