diff options
Diffstat (limited to 'drivers/scsi/scsi_lib.c')
| -rw-r--r-- | drivers/scsi/scsi_lib.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 0b33e4f1a51..c3bb28c3fee 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -96,6 +96,8 @@ int scsi_insert_special_req(struct scsi_request *sreq, int at_head) return 0; } +static void scsi_run_queue(struct request_queue *q); + /* * Function: scsi_queue_insert() * @@ -119,6 +121,8 @@ int scsi_queue_insert(struct scsi_cmnd *cmd, int reason) { struct Scsi_Host *host = cmd->device->host; struct scsi_device *device = cmd->device; + struct request_queue *q = device->request_queue; + unsigned long flags; SCSI_LOG_MLQUEUE(1, printk("Inserting command %p into mlqueue\n", cmd)); @@ -160,17 +164,22 @@ int scsi_queue_insert(struct scsi_cmnd *cmd, int reason) scsi_device_unbusy(device); /* - * Insert this command at the head of the queue for it's device. - * It will go before all other commands that are already in the queue. + * Requeue this command. It will go before all other commands + * that are already in the queue. * * NOTE: there is magic here about the way the queue is plugged if * we have no outstanding commands. * - * Although this *doesn't* plug the queue, it does call the request + * Although we *don't* plug the queue, we call the request * function. The SCSI request function detects the blocked condition * and plugs the queue appropriately. - */ - blk_insert_request(device->request_queue, cmd->request, 1, cmd, 1); + */ + spin_lock_irqsave(q->queue_lock, flags); + blk_requeue_request(q, cmd->request); + spin_unlock_irqrestore(q->queue_lock, flags); + + scsi_run_queue(q); + return 0; } |