[LU-14455] mdt_dom_resource_prolong() can miss needed lock

• Type: Bug
• Resolution: Fixed
• Priority: Major
• Fix Version/s: Lustre 2.15.0
• Severity: 3
• Assignee: Mikhail Pershin
• Reporter: Mikhail Pershin

Description

mdt_dom_resource_prolong() should find all locks on the resource to prolong them when needed but it stops after the first one found. That is not correct because found lock could be even from different export and mdt_rw_hpreq_check() will end with -ESTALE error wrongly