[SCSI] Block I/O while SG reset operation in progress - the midlayer patch

The scsi midlayer portion of the patch

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index a42efd6e4be8..b3dd90f3e858 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -542,6 +542,9 @@ struct Scsi_Host {
          */
         unsigned ordered_tag:1;
 
+        /* task mgmt function in progress */
+        unsigned tmf_in_progress:1;
+
         /*
          * Optional work queue to be utilized by the transport
          */
@@ -619,7 +622,8 @@ static inline int scsi_host_in_recovery(struct Scsi_Host *shost)
 {
         return shost->shost_state == SHOST_RECOVERY ||
                 shost->shost_state == SHOST_CANCEL_RECOVERY ||
-                shost->shost_state == SHOST_DEL_RECOVERY;
+                shost->shost_state == SHOST_DEL_RECOVERY ||
+                shost->tmf_in_progress;
 }
 
 extern int scsi_queue_work(struct Scsi_Host *, struct work_struct *);