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authorJohn Snow <jsnow@redhat.com>2018-03-10 03:27:42 -0500
committerKevin Wolf <kwolf@redhat.com>2018-03-19 12:01:24 +0100
commit5f241594c40875af526a53c7a8c6466e487f4e5e (patch)
tree989aeb15ff86747b8ccd3fa5ad4f6c96d7bd7c95 /block/trace-events
parente8af5686ff6f63a81120f6b8e291f220475796ce (diff)
blockjobs: add PENDING status and event
For jobs utilizing the new manual workflow, we intend to prohibit them from modifying the block graph until the management layer provides an explicit ACK via block-job-finalize to move the process forward. To distinguish this runstate from "ready" or "waiting," we add a new "pending" event and status. For now, the transition from PENDING to CONCLUDED/ABORTING is automatic, but a future commit will add the explicit block-job-finalize step. Transitions: Waiting -> Pending: Normal transition. Pending -> Concluded: Normal transition. Pending -> Aborting: Late transactional failures and cancellations. Removed Transitions: Waiting -> Concluded: Jobs must go to PENDING first. Verbs: Cancel: Can be applied to a pending job. +---------+ |UNDEFINED| +--+------+ | +--v----+ +---------+CREATED+-----------------+ | +--+----+ | | | | | +--+----+ +------+ | +---------+RUNNING<----->PAUSED| | | +--+-+--+ +------+ | | | | | | | +------------------+ | | | | | | +--v--+ +-------+ | | +---------+READY<------->STANDBY| | | | +--+--+ +-------+ | | | | | | | +--v----+ | | +---------+WAITING<---------------+ | | +--+----+ | | | | | +--v----+ | +---------+PENDING| | | +--+----+ | | | | +--v-----+ +--v------+ | |ABORTING+--->CONCLUDED| | +--------+ +--+------+ | | | +--v-+ | |NULL<--------------------+ +----+ Signed-off-by: John Snow <jsnow@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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