[LU-201] unregistered bulk after reply unregistered causes "ptlrpc_set_wait" to hang

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.1.0
• Affects Version/s: Lustre 2.0.0
• Severity: 3
• Bugzilla ID: 21,760
• Assignee: Hongchao Zhang
• Reporter: Hongchao Zhang

Description

in ptlrpc_set_wait, the bulk is not unregistered if the reply was unregistered asynchronously, and the phase of the request was also changed into
"RQ_PHASE_UNREGISTERING", which causes the "ptlrpc_set_wait" to hang for the bulk's state remains to be active (bulk->bd_network_rw == 1)