diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 37fb44b0074b..32425ac61096 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -741,7 +741,7 @@ static int
 sg_common_write(Sg_fd * sfp, Sg_request * srp,
 		unsigned char *cmnd, int timeout, int blocking)
 {
-	int k, data_dir;
+	int k, data_dir, at_head;
 	Sg_device *sdp = sfp->parentdp;
 	sg_io_hdr_t *hp = &srp->header;
 
@@ -785,11 +785,16 @@ sg_common_write(Sg_fd * sfp, Sg_request * srp,
 		break;
 	}
 	hp->duration = jiffies_to_msecs(jiffies);
+	if (hp->interface_id != '\0' &&	/* v3 (or later) interface */
+	    (SG_FLAG_Q_AT_TAIL & hp->flags))
+		at_head = 0;
+	else
+		at_head = 1;
 
 	srp->rq->timeout = timeout;
 	kref_get(&sfp->f_ref); /* sg_rq_end_io() does kref_put(). */
 	blk_execute_rq_nowait(sdp->device->request_queue, sdp->disk,
-			      srp->rq, 1, sg_rq_end_io);
+			      srp->rq, at_head, sg_rq_end_io);
 	return 0;
 }
 
diff --git a/include/scsi/sg.h b/include/scsi/sg.h
index d8c0c4307fca..9859355a7cf9 100644
--- a/include/scsi/sg.h
+++ b/include/scsi/sg.h
@@ -86,6 +86,7 @@ typedef struct sg_io_hdr
 #define SG_FLAG_MMAP_IO 4       /* request memory mapped IO */
 #define SG_FLAG_NO_DXFER 0x10000 /* no transfer of kernel buffers to/from */
 				/* user space (debug indirect IO) */
+#define SG_FLAG_Q_AT_TAIL 0x10  /* default is Q_AT_HEAD */
 
 /* following 'info' values are "or"-ed together */
 #define SG_INFO_OK_MASK 0x1