diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 7b31093..6ba5dbb 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -89,32 +89,34 @@
 /* With these defaults, this driver will make 1 host with 1 target
  * (id 0) containing 1 logical unit (lun 0). That is 1 device.
  */
+#define DEF_ATO 1
 #define DEF_DELAY   1
 #define DEF_DEV_SIZE_MB   8
+#define DEF_DIF 0
+#define DEF_DIX 0
+#define DEF_D_SENSE   0
 #define DEF_EVERY_NTH   0
+#define DEF_FAKE_RW	0
+#define DEF_GUARD 0
+#define DEF_LBPU 0
+#define DEF_LBPWS 0
+#define DEF_LBPWS10 0
+#define DEF_LOWEST_ALIGNED 0
+#define DEF_NO_LUN_0   0
 #define DEF_NUM_PARTS   0
 #define DEF_OPTS   0
-#define DEF_SCSI_LEVEL   5    /* INQUIRY, byte2 [5->SPC-3] */
-#define DEF_PTYPE   0
-#define DEF_D_SENSE   0
-#define DEF_NO_LUN_0   0
-#define DEF_VIRTUAL_GB   0
-#define DEF_FAKE_RW	0
-#define DEF_VPD_USE_HOSTNO 1
-#define DEF_SECTOR_SIZE 512
-#define DEF_DIX 0
-#define DEF_DIF 0
-#define DEF_GUARD 0
-#define DEF_ATO 1
-#define DEF_PHYSBLK_EXP 0
-#define DEF_LOWEST_ALIGNED 0
 #define DEF_OPT_BLKS 64
+#define DEF_PHYSBLK_EXP 0
+#define DEF_PTYPE   0
+#define DEF_SCSI_LEVEL   5    /* INQUIRY, byte2 [5->SPC-3] */
+#define DEF_SECTOR_SIZE 512
+#define DEF_UNMAP_ALIGNMENT 0
+#define DEF_UNMAP_GRANULARITY 1
 #define DEF_UNMAP_MAX_BLOCKS 0xFFFFFFFF
 #define DEF_UNMAP_MAX_DESC 256
-#define DEF_UNMAP_GRANULARITY 1
-#define DEF_UNMAP_ALIGNMENT 0
-#define DEF_TPWS 0
-#define DEF_TPU 0
+#define DEF_VIRTUAL_GB   0
+#define DEF_VPD_USE_HOSTNO 1
+#define DEF_WRITESAME_LENGTH 0xFFFF
 
 /* bit mask values for scsi_debug_opts */
 #define SCSI_DEBUG_OPT_NOISE   1
@@ -155,36 +157,38 @@
 #define SCSI_DEBUG_CANQUEUE  255
 
 static int scsi_debug_add_host = DEF_NUM_HOST;
+static int scsi_debug_ato = DEF_ATO;
 static int scsi_debug_delay = DEF_DELAY;
 static int scsi_debug_dev_size_mb = DEF_DEV_SIZE_MB;
+static int scsi_debug_dif = DEF_DIF;
+static int scsi_debug_dix = DEF_DIX;
+static int scsi_debug_dsense = DEF_D_SENSE;
 static int scsi_debug_every_nth = DEF_EVERY_NTH;
+static int scsi_debug_fake_rw = DEF_FAKE_RW;
+static int scsi_debug_guard = DEF_GUARD;
+static int scsi_debug_lowest_aligned = DEF_LOWEST_ALIGNED;
 static int scsi_debug_max_luns = DEF_MAX_LUNS;
 static int scsi_debug_max_queue = SCSI_DEBUG_CANQUEUE;
-static int scsi_debug_num_parts = DEF_NUM_PARTS;
-static int scsi_debug_no_uld = 0;
-static int scsi_debug_num_tgts = DEF_NUM_TGTS; /* targets per host */
-static int scsi_debug_opts = DEF_OPTS;
-static int scsi_debug_scsi_level = DEF_SCSI_LEVEL;
-static int scsi_debug_ptype = DEF_PTYPE; /* SCSI peripheral type (0==disk) */
-static int scsi_debug_dsense = DEF_D_SENSE;
 static int scsi_debug_no_lun_0 = DEF_NO_LUN_0;
-static int scsi_debug_virtual_gb = DEF_VIRTUAL_GB;
-static int scsi_debug_fake_rw = DEF_FAKE_RW;
-static int scsi_debug_vpd_use_hostno = DEF_VPD_USE_HOSTNO;
-static int scsi_debug_sector_size = DEF_SECTOR_SIZE;
-static int scsi_debug_dix = DEF_DIX;
-static int scsi_debug_dif = DEF_DIF;
-static int scsi_debug_guard = DEF_GUARD;
-static int scsi_debug_ato = DEF_ATO;
-static int scsi_debug_physblk_exp = DEF_PHYSBLK_EXP;
-static int scsi_debug_lowest_aligned = DEF_LOWEST_ALIGNED;
+static int scsi_debug_no_uld = 0;
+static int scsi_debug_num_parts = DEF_NUM_PARTS;
+static int scsi_debug_num_tgts = DEF_NUM_TGTS; /* targets per host */
 static int scsi_debug_opt_blks = DEF_OPT_BLKS;
-static unsigned int scsi_debug_unmap_max_desc = DEF_UNMAP_MAX_DESC;
-static unsigned int scsi_debug_unmap_max_blocks = DEF_UNMAP_MAX_BLOCKS;
-static unsigned int scsi_debug_unmap_granularity = DEF_UNMAP_GRANULARITY;
+static int scsi_debug_opts = DEF_OPTS;
+static int scsi_debug_physblk_exp = DEF_PHYSBLK_EXP;
+static int scsi_debug_ptype = DEF_PTYPE; /* SCSI peripheral type (0==disk) */
+static int scsi_debug_scsi_level = DEF_SCSI_LEVEL;
+static int scsi_debug_sector_size = DEF_SECTOR_SIZE;
+static int scsi_debug_virtual_gb = DEF_VIRTUAL_GB;
+static int scsi_debug_vpd_use_hostno = DEF_VPD_USE_HOSTNO;
+static unsigned int scsi_debug_lbpu = DEF_LBPU;
+static unsigned int scsi_debug_lbpws = DEF_LBPWS;
+static unsigned int scsi_debug_lbpws10 = DEF_LBPWS10;
 static unsigned int scsi_debug_unmap_alignment = DEF_UNMAP_ALIGNMENT;
-static unsigned int scsi_debug_tpws = DEF_TPWS;
-static unsigned int scsi_debug_tpu = DEF_TPU;
+static unsigned int scsi_debug_unmap_granularity = DEF_UNMAP_GRANULARITY;
+static unsigned int scsi_debug_unmap_max_blocks = DEF_UNMAP_MAX_BLOCKS;
+static unsigned int scsi_debug_unmap_max_desc = DEF_UNMAP_MAX_DESC;
+static unsigned int scsi_debug_write_same_length = DEF_WRITESAME_LENGTH;
 
 static int scsi_debug_cmnd_count = 0;
 
@@ -206,6 +210,11 @@
 
 #define SCSI_DEBUG_MAX_CMD_LEN 32
 
+static unsigned int scsi_debug_lbp(void)
+{
+	return scsi_debug_lbpu | scsi_debug_lbpws | scsi_debug_lbpws10;
+}
+
 struct sdebug_dev_info {
 	struct list_head dev_list;
 	unsigned char sense_buff[SDEBUG_SENSE_LEN];	/* weak nexus */
@@ -727,7 +736,7 @@
 	/* Optimal Transfer Length */
 	put_unaligned_be32(scsi_debug_opt_blks, &arr[8]);
 
-	if (scsi_debug_tpu) {
+	if (scsi_debug_lbpu) {
 		/* Maximum Unmap LBA Count */
 		put_unaligned_be32(scsi_debug_unmap_max_blocks, &arr[16]);
 
@@ -744,7 +753,10 @@
 	/* Optimal Unmap Granularity */
 	put_unaligned_be32(scsi_debug_unmap_granularity, &arr[24]);
 
-	return 0x3c; /* Mandatory page length for thin provisioning */
+	/* Maximum WRITE SAME Length */
+	put_unaligned_be64(scsi_debug_write_same_length, &arr[32]);
+
+	return 0x3c; /* Mandatory page length for Logical Block Provisioning */
 
 	return sizeof(vpdb0_data);
 }
@@ -767,12 +779,15 @@
 	memset(arr, 0, 0x8);
 	arr[0] = 0;			/* threshold exponent */
 
-	if (scsi_debug_tpu)
+	if (scsi_debug_lbpu)
 		arr[1] = 1 << 7;
 
-	if (scsi_debug_tpws)
+	if (scsi_debug_lbpws)
 		arr[1] |= 1 << 6;
 
+	if (scsi_debug_lbpws10)
+		arr[1] |= 1 << 5;
+
 	return 0x8;
 }
 
@@ -831,7 +846,8 @@
 			arr[n++] = 0x89;  /* ATA information */
 			arr[n++] = 0xb0;  /* Block limits (SBC) */
 			arr[n++] = 0xb1;  /* Block characteristics (SBC) */
-			arr[n++] = 0xb2;  /* Thin provisioning (SBC) */
+			if (scsi_debug_lbp()) /* Logical Block Prov. (SBC) */
+				arr[n++] = 0xb2;
 			arr[3] = n - 4;	  /* number of supported VPD pages */
 		} else if (0x80 == cmd[2]) { /* unit serial number */
 			arr[1] = cmd[2];	/*sanity */
@@ -879,7 +895,7 @@
 		} else if (0xb1 == cmd[2]) { /* Block characteristics (SBC) */
 			arr[1] = cmd[2];        /*sanity */
 			arr[3] = inquiry_evpd_b1(&arr[4]);
-		} else if (0xb2 == cmd[2]) { /* Thin provisioning (SBC) */
+		} else if (0xb2 == cmd[2]) { /* Logical Block Prov. (SBC) */
 			arr[1] = cmd[2];        /*sanity */
 			arr[3] = inquiry_evpd_b2(&arr[4]);
 		} else {
@@ -1053,8 +1069,8 @@
 	arr[13] = scsi_debug_physblk_exp & 0xf;
 	arr[14] = (scsi_debug_lowest_aligned >> 8) & 0x3f;
 
-	if (scsi_debug_tpu || scsi_debug_tpws)
-		arr[14] |= 0x80; /* TPE */
+	if (scsi_debug_lbp())
+		arr[14] |= 0x80; /* LBPME */
 
 	arr[15] = scsi_debug_lowest_aligned & 0xff;
 
@@ -2084,6 +2100,12 @@
 	if (ret)
 		return ret;
 
+	if (num > scsi_debug_write_same_length) {
+		mk_sense_buffer(devip, ILLEGAL_REQUEST, INVALID_FIELD_IN_CDB,
+				0);
+		return check_condition_result;
+	}
+
 	write_lock_irqsave(&atomic_rw, iflags);
 
 	if (unmap && scsi_debug_unmap_granularity) {
@@ -2695,37 +2717,40 @@
    /sys/bus/pseudo/drivers/scsi_debug directory is changed.
  */
 module_param_named(add_host, scsi_debug_add_host, int, S_IRUGO | S_IWUSR);
+module_param_named(ato, scsi_debug_ato, int, S_IRUGO);
 module_param_named(delay, scsi_debug_delay, int, S_IRUGO | S_IWUSR);
 module_param_named(dev_size_mb, scsi_debug_dev_size_mb, int, S_IRUGO);
+module_param_named(dif, scsi_debug_dif, int, S_IRUGO);
+module_param_named(dix, scsi_debug_dix, int, S_IRUGO);
 module_param_named(dsense, scsi_debug_dsense, int, S_IRUGO | S_IWUSR);
 module_param_named(every_nth, scsi_debug_every_nth, int, S_IRUGO | S_IWUSR);
 module_param_named(fake_rw, scsi_debug_fake_rw, int, S_IRUGO | S_IWUSR);
+module_param_named(guard, scsi_debug_guard, int, S_IRUGO);
+module_param_named(lbpu, scsi_debug_lbpu, int, S_IRUGO);
+module_param_named(lbpws, scsi_debug_lbpws, int, S_IRUGO);
+module_param_named(lbpws10, scsi_debug_lbpws10, int, S_IRUGO);
+module_param_named(lowest_aligned, scsi_debug_lowest_aligned, int, S_IRUGO);
 module_param_named(max_luns, scsi_debug_max_luns, int, S_IRUGO | S_IWUSR);
 module_param_named(max_queue, scsi_debug_max_queue, int, S_IRUGO | S_IWUSR);
 module_param_named(no_lun_0, scsi_debug_no_lun_0, int, S_IRUGO | S_IWUSR);
 module_param_named(no_uld, scsi_debug_no_uld, int, S_IRUGO);
 module_param_named(num_parts, scsi_debug_num_parts, int, S_IRUGO);
 module_param_named(num_tgts, scsi_debug_num_tgts, int, S_IRUGO | S_IWUSR);
+module_param_named(opt_blks, scsi_debug_opt_blks, int, S_IRUGO);
 module_param_named(opts, scsi_debug_opts, int, S_IRUGO | S_IWUSR);
+module_param_named(physblk_exp, scsi_debug_physblk_exp, int, S_IRUGO);
 module_param_named(ptype, scsi_debug_ptype, int, S_IRUGO | S_IWUSR);
 module_param_named(scsi_level, scsi_debug_scsi_level, int, S_IRUGO);
+module_param_named(sector_size, scsi_debug_sector_size, int, S_IRUGO);
+module_param_named(unmap_alignment, scsi_debug_unmap_alignment, int, S_IRUGO);
+module_param_named(unmap_granularity, scsi_debug_unmap_granularity, int, S_IRUGO);
+module_param_named(unmap_max_blocks, scsi_debug_unmap_max_blocks, int, S_IRUGO);
+module_param_named(unmap_max_desc, scsi_debug_unmap_max_desc, int, S_IRUGO);
 module_param_named(virtual_gb, scsi_debug_virtual_gb, int, S_IRUGO | S_IWUSR);
 module_param_named(vpd_use_hostno, scsi_debug_vpd_use_hostno, int,
 		   S_IRUGO | S_IWUSR);
-module_param_named(sector_size, scsi_debug_sector_size, int, S_IRUGO);
-module_param_named(dix, scsi_debug_dix, int, S_IRUGO);
-module_param_named(dif, scsi_debug_dif, int, S_IRUGO);
-module_param_named(guard, scsi_debug_guard, int, S_IRUGO);
-module_param_named(ato, scsi_debug_ato, int, S_IRUGO);
-module_param_named(physblk_exp, scsi_debug_physblk_exp, int, S_IRUGO);
-module_param_named(opt_blks, scsi_debug_opt_blks, int, S_IRUGO);
-module_param_named(lowest_aligned, scsi_debug_lowest_aligned, int, S_IRUGO);
-module_param_named(unmap_max_blocks, scsi_debug_unmap_max_blocks, int, S_IRUGO);
-module_param_named(unmap_max_desc, scsi_debug_unmap_max_desc, int, S_IRUGO);
-module_param_named(unmap_granularity, scsi_debug_unmap_granularity, int, S_IRUGO);
-module_param_named(unmap_alignment, scsi_debug_unmap_alignment, int, S_IRUGO);
-module_param_named(tpu, scsi_debug_tpu, int, S_IRUGO);
-module_param_named(tpws, scsi_debug_tpws, int, S_IRUGO);
+module_param_named(write_same_length, scsi_debug_write_same_length, int,
+		   S_IRUGO | S_IWUSR);
 
 MODULE_AUTHOR("Eric Youngdale + Douglas Gilbert");
 MODULE_DESCRIPTION("SCSI debug adapter driver");
@@ -2733,36 +2758,38 @@
 MODULE_VERSION(SCSI_DEBUG_VERSION);
 
 MODULE_PARM_DESC(add_host, "0..127 hosts allowed(def=1)");
+MODULE_PARM_DESC(ato, "application tag ownership: 0=disk 1=host (def=1)");
 MODULE_PARM_DESC(delay, "# of jiffies to delay response(def=1)");
 MODULE_PARM_DESC(dev_size_mb, "size in MB of ram shared by devs(def=8)");
+MODULE_PARM_DESC(dif, "data integrity field type: 0-3 (def=0)");
+MODULE_PARM_DESC(dix, "data integrity extensions mask (def=0)");
 MODULE_PARM_DESC(dsense, "use descriptor sense format(def=0 -> fixed)");
 MODULE_PARM_DESC(every_nth, "timeout every nth command(def=0)");
 MODULE_PARM_DESC(fake_rw, "fake reads/writes instead of copying (def=0)");
+MODULE_PARM_DESC(guard, "protection checksum: 0=crc, 1=ip (def=0)");
+MODULE_PARM_DESC(lbpu, "enable LBP, support UNMAP command (def=0)");
+MODULE_PARM_DESC(lbpws, "enable LBP, support WRITE SAME(16) with UNMAP bit (def=0)");
+MODULE_PARM_DESC(lbpws10, "enable LBP, support WRITE SAME(10) with UNMAP bit (def=0)");
+MODULE_PARM_DESC(lowest_aligned, "lowest aligned lba (def=0)");
 MODULE_PARM_DESC(max_luns, "number of LUNs per target to simulate(def=1)");
 MODULE_PARM_DESC(max_queue, "max number of queued commands (1 to 255(def))");
 MODULE_PARM_DESC(no_lun_0, "no LU number 0 (def=0 -> have lun 0)");
 MODULE_PARM_DESC(no_uld, "stop ULD (e.g. sd driver) attaching (def=0))");
 MODULE_PARM_DESC(num_parts, "number of partitions(def=0)");
 MODULE_PARM_DESC(num_tgts, "number of targets per host to simulate(def=1)");
+MODULE_PARM_DESC(opt_blks, "optimal transfer length in block (def=64)");
 MODULE_PARM_DESC(opts, "1->noise, 2->medium_err, 4->timeout, 8->recovered_err... (def=0)");
+MODULE_PARM_DESC(physblk_exp, "physical block exponent (def=0)");
 MODULE_PARM_DESC(ptype, "SCSI peripheral type(def=0[disk])");
 MODULE_PARM_DESC(scsi_level, "SCSI level to simulate(def=5[SPC-3])");
-MODULE_PARM_DESC(virtual_gb, "virtual gigabyte size (def=0 -> use dev_size_mb)");
-MODULE_PARM_DESC(vpd_use_hostno, "0 -> dev ids ignore hostno (def=1 -> unique dev ids)");
 MODULE_PARM_DESC(sector_size, "logical block size in bytes (def=512)");
-MODULE_PARM_DESC(physblk_exp, "physical block exponent (def=0)");
-MODULE_PARM_DESC(opt_blks, "optimal transfer length in block (def=64)");
-MODULE_PARM_DESC(lowest_aligned, "lowest aligned lba (def=0)");
-MODULE_PARM_DESC(dix, "data integrity extensions mask (def=0)");
-MODULE_PARM_DESC(dif, "data integrity field type: 0-3 (def=0)");
-MODULE_PARM_DESC(guard, "protection checksum: 0=crc, 1=ip (def=0)");
-MODULE_PARM_DESC(ato, "application tag ownership: 0=disk 1=host (def=1)");
+MODULE_PARM_DESC(unmap_alignment, "lowest aligned thin provisioning lba (def=0)");
+MODULE_PARM_DESC(unmap_granularity, "thin provisioning granularity in blocks (def=1)");
 MODULE_PARM_DESC(unmap_max_blocks, "max # of blocks can be unmapped in one cmd (def=0xffffffff)");
 MODULE_PARM_DESC(unmap_max_desc, "max # of ranges that can be unmapped in one cmd (def=256)");
-MODULE_PARM_DESC(unmap_granularity, "thin provisioning granularity in blocks (def=1)");
-MODULE_PARM_DESC(unmap_alignment, "lowest aligned thin provisioning lba (def=0)");
-MODULE_PARM_DESC(tpu, "enable TP, support UNMAP command (def=0)");
-MODULE_PARM_DESC(tpws, "enable TP, support WRITE SAME(16) with UNMAP bit (def=0)");
+MODULE_PARM_DESC(virtual_gb, "virtual gigabyte size (def=0 -> use dev_size_mb)");
+MODULE_PARM_DESC(vpd_use_hostno, "0 -> dev ids ignore hostno (def=1 -> unique dev ids)");
+MODULE_PARM_DESC(write_same_length, "Maximum blocks per WRITE SAME cmd (def=0xffff)");
 
 static char sdebug_info[256];
 
@@ -3150,7 +3177,7 @@
 {
 	ssize_t count;
 
-	if (scsi_debug_tpu == 0 && scsi_debug_tpws == 0)
+	if (!scsi_debug_lbp())
 		return scnprintf(buf, PAGE_SIZE, "0-%u\n",
 				 sdebug_store_sectors);
 
@@ -3333,8 +3360,8 @@
 		memset(dif_storep, 0xff, dif_size);
 	}
 
-	/* Thin Provisioning */
-	if (scsi_debug_tpu || scsi_debug_tpws) {
+	/* Logical Block Provisioning */
+	if (scsi_debug_lbp()) {
 		unsigned int map_bytes;
 
 		scsi_debug_unmap_max_blocks =
@@ -3664,7 +3691,7 @@
 			errsts = resp_readcap16(SCpnt, devip);
 		else if (cmd[1] == SAI_GET_LBA_STATUS) {
 
-			if (scsi_debug_tpu == 0 && scsi_debug_tpws == 0) {
+			if (scsi_debug_lbp() == 0) {
 				mk_sense_buffer(devip, ILLEGAL_REQUEST,
 						INVALID_COMMAND_OPCODE, 0);
 				errsts = check_condition_result;
@@ -3775,8 +3802,10 @@
 		}
 		break;
 	case WRITE_SAME_16:
+	case WRITE_SAME:
 		if (cmd[1] & 0x8) {
-			if (scsi_debug_tpws == 0) {
+			if ((*cmd == WRITE_SAME_16 && scsi_debug_lbpws == 0) ||
+			    (*cmd == WRITE_SAME && scsi_debug_lbpws10 == 0)) {
 				mk_sense_buffer(devip, ILLEGAL_REQUEST,
 						INVALID_FIELD_IN_CDB, 0);
 				errsts = check_condition_result;
@@ -3785,8 +3814,6 @@
 		}
 		if (errsts)
 			break;
-		/* fall through */
-	case WRITE_SAME:
 		errsts = check_readiness(SCpnt, 0, devip);
 		if (errsts)
 			break;
@@ -3798,7 +3825,7 @@
 		if (errsts)
 			break;
 
-		if (scsi_debug_unmap_max_desc == 0 || scsi_debug_tpu == 0) {
+		if (scsi_debug_unmap_max_desc == 0 || scsi_debug_lbpu == 0) {
 			mk_sense_buffer(devip, ILLEGAL_REQUEST,
 					INVALID_COMMAND_OPCODE, 0);
 			errsts = check_condition_result;