{
struct request_queue *q = hctx->queue;
struct scsi_device *sdev = q->queuedata;
- struct Scsi_Host *shost = sdev->host;
- atomic_dec(&shost->host_busy);
- if (scsi_target(sdev)->can_queue > 0)
- atomic_dec(&scsi_target(sdev)->target_busy);
atomic_dec(&sdev->device_busy);
put_device(&sdev->sdev_gendev);
}
{
struct request_queue *q = hctx->queue;
struct scsi_device *sdev = q->queuedata;
- struct Scsi_Host *shost = sdev->host;
blk_status_t ret;
ret = prep_to_mq(scsi_prep_state_check(sdev, NULL));
goto out;
if (!scsi_dev_queue_ready(q, sdev))
goto out_put_device;
- if (!scsi_target_queue_ready(shost, sdev))
- goto out_dec_device_busy;
- if (!scsi_host_queue_ready(q, shost, sdev))
- goto out_dec_target_busy;
return BLK_STS_OK;
-out_dec_target_busy:
- if (scsi_target(sdev)->can_queue > 0)
- atomic_dec(&scsi_target(sdev)->target_busy);
-out_dec_device_busy:
- atomic_dec(&sdev->device_busy);
out_put_device:
put_device(&sdev->sdev_gendev);
out:
struct request *req = bd->rq;
struct request_queue *q = req->q;
struct scsi_device *sdev = q->queuedata;
+ struct Scsi_Host *shost = sdev->host;
struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(req);
blk_status_t ret;
int reason;
goto out_put_budget;
ret = BLK_STS_RESOURCE;
+ if (!scsi_target_queue_ready(shost, sdev))
+ goto out_put_budget;
+ if (!scsi_host_queue_ready(q, shost, sdev))
+ goto out_dec_target_busy;
+
if (!(req->rq_flags & RQF_DONTPREP)) {
ret = prep_to_mq(scsi_mq_prep_fn(req));
if (ret != BLK_STS_OK)
- goto out_put_budget;
+ goto out_dec_host_busy;
req->rq_flags |= RQF_DONTPREP;
} else {
blk_mq_start_request(req);
if (reason) {
scsi_set_blocked(cmd, reason);
ret = BLK_STS_RESOURCE;
- goto out_put_budget;
+ goto out_dec_host_busy;
}
return BLK_STS_OK;
+out_dec_host_busy:
+ atomic_dec(&shost->host_busy);
+out_dec_target_busy:
+ if (scsi_target(sdev)->can_queue > 0)
+ atomic_dec(&scsi_target(sdev)->target_busy);
out_put_budget:
scsi_mq_put_budget(hctx);
switch (ret) {