[LU-4922] Fix cfs_str2mask to better deal with garbage input

• Type: Improvement
• Resolution: Unresolved
• Priority: Minor
• Affects Version/s: Lustre 2.1.6, Lustre 2.6.0, Lustre 2.5.1, Lustre 2.4.3, Lustre 2.15.3
• Labels: easy
• Severity: 3
• Assignee: Ronnie Sahlberg
• Reporter: Oleg Drokin

Description

Currently if you feed garbage input into cfs_str2mask, for example empty string, it would reset the value to min_mask where as I imagine it should just do nothing.
Prime example of this is changelog_mask, I guess.

So this needs to be fixed.
Also once done, sanity test 133g should be updated to no longer exclude that file.

Issue Links

• is related to: LU-9859 libcfs simplification