--- linux/include/scsi/sg.h	2008-10-10 17:04:54.000000000 -0400
+++ linux/include/scsi/sg.h2633qat1	2010-03-20 14:28:31.000000000 -0400
@@ -11,9 +11,9 @@
 Original driver (sg.h):
 *       Copyright (C) 1992 Lawrence Foard
 Version 2 and 3 extensions to driver:
-*       Copyright (C) 1998 - 2006 Douglas Gilbert
+*       Copyright (C) 1998 - 2010 Douglas Gilbert
 
-    Version: 3.5.34 (20060920)
+    Version: 3.5.35 (20100319)
     This version is for 2.6 series kernels.
 
     For a full changelog see http://www.torque.net/sg
@@ -124,6 +124,7 @@
 #define SG_FLAG_UNUSED_LUN_INHIBIT 2   /* default is overwrite lun in SCSI */
 				/* command block (when <= SCSI_2) */
 #define SG_FLAG_MMAP_IO 4       /* request memory mapped IO */
+#define SG_FLAG_Q_AT_TAIL 0x10  /* default, without this flag, is Q_AT_HEAD */
 #define SG_FLAG_NO_DXFER 0x10000 /* no transfer of kernel buffers to/from */
 				/* user space (debug indirect IO) */
 
--- linux/drivers/scsi/sg.c	2009-12-03 11:11:18.000000000 -0500
+++ linux/drivers/scsi/sg.c2633qat1	2010-03-19 19:42:10.000000000 -0400
@@ -18,8 +18,8 @@
  *
  */
 
-static int sg_version_num = 30534;	/* 2 digits for each component */
-#define SG_VERSION_STR "3.5.34"
+static int sg_version_num = 30535;	/* 2 digits for each component */
+#define SG_VERSION_STR "3.5.35"
 
 /*
  *  D. P. Gilbert (dgilbert@interlog.com, dougg@triode.net.au), notes:
@@ -61,7 +61,7 @@
 
 #ifdef CONFIG_SCSI_PROC_FS
 #include <linux/proc_fs.h>
-static char *sg_version_date = "20061027";
+static char *sg_version_date = "20100319";
 
 static int sg_proc_init(void);
 static void sg_proc_cleanup(void);
@@ -710,8 +710,11 @@
 	int k, data_dir;
 	Sg_device *sdp = sfp->parentdp;
 	sg_io_hdr_t *hp = &srp->header;
+	int at_head = 1;
 
 	srp->data.cmd_opcode = cmnd[0];	/* hold opcode of command */
+	if ('\0' != hp->interface_id)	/* old interface misuses flags */
+		at_head = (SG_FLAG_Q_AT_TAIL & hp->flags) ? 0 : 1;
 	hp->status = 0;
 	hp->masked_status = 0;
 	hp->msg_status = 0;
@@ -753,7 +756,7 @@
 	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;
 }