[SCSI] qla4xxx: return SCSI_MLQUEUE_TARGET_BUSY when driver has detected session...

[linux-2.6-omap-h63xx.git] / drivers / scsi / scsi.c

diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index dbeb86cafc0d9ca3d59205425186427e3dcab583..f8b79d401d58e420f28390355b87f72a9370d6d5 100644 (file)
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -668,13 +668,14 @@ int scsi_dispatch_cmd(struct scsi_cmnd *cmd)
                goto out;
        }
 
-       /* Check to see if the scsi lld put this device into state SDEV_BLOCK. */
-       if (unlikely(cmd->device->sdev_state == SDEV_BLOCK)) {
+       /* Check to see if the scsi lld made this device blocked. */
+       if (unlikely(scsi_device_blocked(cmd->device))) {
                /* 
-                * in SDEV_BLOCK, the command is just put back on the device
-                * queue.  The suspend state has already blocked the queue so
-                * future requests should not occur until the device 
-                * transitions out of the suspend state.
+                * in blocked state, the command is just put back on
+                * the device queue.  The suspend state has already
+                * blocked the queue so future requests should not
+                * occur until the device transitions out of the
+                * suspend state.
                 */
 
                scsi_queue_insert(cmd, SCSI_MLQUEUE_DEVICE_BUSY);
@@ -753,8 +754,12 @@ int scsi_dispatch_cmd(struct scsi_cmnd *cmd)
        }
        spin_unlock_irqrestore(host->host_lock, flags);
        if (rtn) {
-               scsi_queue_insert(cmd, (rtn == SCSI_MLQUEUE_DEVICE_BUSY) ?
-                                               rtn : SCSI_MLQUEUE_HOST_BUSY);
+               if (rtn != SCSI_MLQUEUE_DEVICE_BUSY &&
+                   rtn != SCSI_MLQUEUE_TARGET_BUSY)
+                       rtn = SCSI_MLQUEUE_HOST_BUSY;
+
+               scsi_queue_insert(cmd, rtn);
+
                SCSI_LOG_MLQUEUE(3,
                    printk("queuecommand : request rejected\n"));
        }
@@ -799,6 +804,7 @@ static struct scsi_driver *scsi_cmd_to_driver(struct scsi_cmnd *cmd)
 void scsi_finish_command(struct scsi_cmnd *cmd)
 {
        struct scsi_device *sdev = cmd->device;
+       struct scsi_target *starget = scsi_target(sdev);
        struct Scsi_Host *shost = sdev->host;
        struct scsi_driver *drv;
        unsigned int good_bytes;
@@ -814,6 +820,7 @@ void scsi_finish_command(struct scsi_cmnd *cmd)
         * XXX(hch): What about locking?
          */
         shost->host_blocked = 0;
+       starget->target_blocked = 0;
         sdev->device_blocked = 0;
 
        /*