We are going to remove bs->job pointer. Drop it's usage in
blk_iostatus_reset.
blk_iostatus_reset() has only two callers:
1. blk_attach_dev(). This doesn't have anything to do with jobs and
attaching a new guest device won't solve any problem the job
encountered, so no reason to reset the iostatus for the job.
2. qmp_cont(). This resets the iostatus for everything. We can just
call block_job_iostatus_reset() for all block jobs instead of going
through BlockBackend.
Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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