[SCSI] host state model update: replace old host bitmap state

Migrate the current SCSI host state model to a model like SCSI
device is using.

Signed-off-by: Mike Anderson <andmike@us.ibm.com>

Rejections fixed up and

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 7a91ca3..060010b 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -348,7 +348,7 @@
 
 	spin_lock_irqsave(shost->host_lock, flags);
 	shost->host_busy--;
-	if (unlikely(test_bit(SHOST_RECOVERY, &shost->shost_state) &&
+	if (unlikely((shost->shost_state == SHOST_RECOVERY) &&
 		     shost->host_failed))
 		scsi_eh_wakeup(shost);
 	spin_unlock(shost->host_lock);
@@ -1207,7 +1207,7 @@
 				   struct Scsi_Host *shost,
 				   struct scsi_device *sdev)
 {
-	if (test_bit(SHOST_RECOVERY, &shost->shost_state))
+	if (shost->shost_state == SHOST_RECOVERY)
 		return 0;
 	if (shost->host_busy == 0 && shost->host_blocked) {
 		/*