[SCSI] add inline functions for recognising created and blocked states

The created and blocked states are very shortly going to correspond to
mixed sdev_state states.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 80b2e93c2936..cc46652e4658 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -384,10 +384,21 @@ static inline unsigned int sdev_id(struct scsi_device *sdev)
 #define scmd_id(scmd) sdev_id((scmd)->device)
 #define scmd_channel(scmd) sdev_channel((scmd)->device)
 
+/*
+ * checks for positions of the SCSI state machine
+ */
 static inline int scsi_device_online(struct scsi_device *sdev)
 {
         return sdev->sdev_state != SDEV_OFFLINE;
 }
+static inline int scsi_device_blocked(struct scsi_device *sdev)
+{
+        return sdev->sdev_state == SDEV_BLOCK;
+}
+static inline int scsi_device_created(struct scsi_device *sdev)
+{
+        return sdev->sdev_state == SDEV_CREATED;
+}
 
 /* accessor functions for the SCSI parameters */
 static inline int scsi_device_sync(struct scsi_device *sdev)