Merge tag 'for-5.17/block-2022-01-11' of git://git.kernel.dk/linux-block

Pull block updates from Jens Axboe:

 - Unify where the struct request handling code is located in the blk-mq
   code (Christoph)

 - Header cleanups (Christoph)

 - Clean up the io_context handling code (Christoph, me)

 - Get rid of ->rq_disk in struct request (Christoph)

 - Error handling fix for add_disk() (Christoph)

 - request allocation cleanusp (Christoph)

 - Documentation updates (Eric, Matthew)

 - Remove trivial crypto unregister helper (Eric)

 - Reduce shared tag overhead (John)

 - Reduce poll_stats memory overhead (me)

 - Known indirect function call for dio (me)

 - Use atomic references for struct request (me)

 - Support request list issue for block and NVMe (me)

 - Improve queue dispatch pinning (Ming)

 - Improve the direct list issue code (Keith)

 - BFQ improvements (Jan)

 - Direct completion helper and use it in mmc block (Sebastian)

 - Use raw spinlock for the blktrace code (Wander)

 - fsync error handling fix (Ye)

 - Various fixes and cleanups (Lukas, Randy, Yang, Tetsuo, Ming, me)

* tag 'for-5.17/block-2022-01-11' of git://git.kernel.dk/linux-block: (132 commits)
  MAINTAINERS: add entries for block layer documentation
  docs: block: remove queue-sysfs.rst
  docs: sysfs-block: document virt_boundary_mask
  docs: sysfs-block: document stable_writes
  docs: sysfs-block: fill in missing documentation from queue-sysfs.rst
  docs: sysfs-block: add contact for nomerges
  docs: sysfs-block: sort alphabetically
  docs: sysfs-block: move to stable directory
  block: don't protect submit_bio_checks by q_usage_counter
  block: fix old-style declaration
  nvme-pci: fix queue_rqs list splitting
  block: introduce rq_list_move
  block: introduce rq_list_for_each_safe macro
  block: move rq_list macros to blk-mq.h
  block: drop needless assignment in set_task_ioprio()
  block: remove unnecessary trailing '\'
  bio.h: fix kernel-doc warnings
  block: check minor range in device_add_disk()
  block: use "unsigned long" for blk_validate_block_size().
  block: fix error unwinding in device_add_disk
  ...

26 files changed, 63 insertions, 62 deletions

diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c
index bf5c124c5452..5a566f2fd533 100644
--- a/drivers/block/amiflop.c
+++ b/drivers/block/amiflop.c
@@ -1505,7 +1505,7 @@ static blk_status_t amiflop_queue_rq(struct blk_mq_hw_ctx *hctx,
 				     const struct blk_mq_queue_data *bd)
 {
 	struct request *rq = bd->rq;
-	struct amiga_floppy_struct *floppy = rq->rq_disk->private_data;
+	struct amiga_floppy_struct *floppy = rq->q->disk->private_data;
 	blk_status_t err;
 
 	if (!spin_trylock_irq(&amiflop_lock))
@@ -1790,6 +1790,7 @@ static int fd_alloc_disk(int drive, int system)
 	disk->first_minor = drive + system;
 	disk->minors = 1;
 	disk->fops = &floppy_fops;
+	disk->flags |= GENHD_FL_NO_PART;
 	disk->events = DISK_EVENT_MEDIA_CHANGE;
 	if (system)
 		sprintf(disk->disk_name, "fd%d_msdos", drive);
diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index bf769e6e32fe..5d819a466e2f 100644
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -1502,7 +1502,7 @@ static void setup_req_params( int drive )
 static blk_status_t ataflop_queue_rq(struct blk_mq_hw_ctx *hctx,
 				     const struct blk_mq_queue_data *bd)
 {
-	struct atari_floppy_struct *floppy = bd->rq->rq_disk->private_data;
+	struct atari_floppy_struct *floppy = bd->rq->q->disk->private_data;
 	int drive = floppy - unit;
 	int type = floppy->type;
 
@@ -1538,7 +1538,7 @@ static blk_status_t ataflop_queue_rq(struct blk_mq_hw_ctx *hctx,
 		if (!UDT) {
 			Probing = 1;
 			UDT = atari_disk_type + StartDiskType[DriveType];
-			set_capacity(bd->rq->rq_disk, UDT->blocks);
+			set_capacity(bd->rq->q->disk, UDT->blocks);
 			UD.autoprobe = 1;
 		}
 	} 
@@ -1558,7 +1558,7 @@ static blk_status_t ataflop_queue_rq(struct blk_mq_hw_ctx *hctx,
 		}
 		type = minor2disktype[type].index;
 		UDT = &atari_disk_type[type];
-		set_capacity(bd->rq->rq_disk, UDT->blocks);
+		set_capacity(bd->rq->q->disk, UDT->blocks);
 		UD.autoprobe = 0;
 	}
 
@@ -2000,6 +2000,7 @@ static int ataflop_alloc_disk(unsigned int drive, unsigned int type)
 	disk->minors = 1;
 	sprintf(disk->disk_name, "fd%d", drive);
 	disk->fops = &floppy_fops;
+	disk->flags |= GENHD_FL_NO_PART;
 	disk->events = DISK_EVENT_MEDIA_CHANGE;
 	disk->private_data = &unit[drive];
 	set_capacity(disk, MAX_DISK_SIZE * 2);
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index a896ee175d86..8fe2e4289dae 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -405,7 +405,6 @@ static int brd_alloc(int i)
 	disk->minors		= max_part;
 	disk->fops		= &brd_fops;
 	disk->private_data	= brd;
-	disk->flags		= GENHD_FL_EXT_DEVT;
 	strlcpy(disk->disk_name, buf, DISK_NAME_LEN);
 	set_capacity(disk, rd_size * 2);
 	
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 53ba2dddba6e..07b3c6093e7d 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -2734,6 +2734,7 @@ enum drbd_ret_code drbd_create_device(struct drbd_config_context *adm_ctx, unsig
 	disk->first_minor = minor;
 	disk->minors = 1;
 	disk->fops = &drbd_ops;
+	disk->flags |= GENHD_FL_NO_PART;
 	sprintf(disk->disk_name, "drbd%d", minor);
 	disk->private_data = device;
 
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index c4267da716fe..0c638de25023 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -2259,7 +2259,7 @@ static int do_format(int drive, struct format_descr *tmp_format_req)
 static void floppy_end_request(struct request *req, blk_status_t error)
 {
 	unsigned int nr_sectors = current_count_sectors;
-	unsigned int drive = (unsigned long)req->rq_disk->private_data;
+	unsigned int drive = (unsigned long)req->q->disk->private_data;
 
 	/* current_count_sectors can be zero if transfer failed */
 	if (error)
@@ -2550,7 +2550,7 @@ static int make_raw_rw_request(void)
 	if (WARN(max_buffer_sectors == 0, "VFS: Block I/O scheduled on unopened device\n"))
 		return 0;
 
-	set_fdc((long)current_req->rq_disk->private_data);
+	set_fdc((long)current_req->q->disk->private_data);
 
 	raw_cmd = &default_raw_cmd;
 	raw_cmd->flags = FD_RAW_SPIN | FD_RAW_NEED_DISK | FD_RAW_NEED_SEEK;
@@ -2792,7 +2792,7 @@ do_request:
 			return;
 		}
 	}
-	drive = (long)current_req->rq_disk->private_data;
+	drive = (long)current_req->q->disk->private_data;
 	set_fdc(drive);
 	reschedule_timeout(current_drive, "redo fd request");
 
@@ -4503,6 +4503,7 @@ static int floppy_alloc_disk(unsigned int drive, unsigned int type)
 	disk->first_minor = TOMINOR(drive) | (type << 2);
 	disk->minors = 1;
 	disk->fops = &floppy_fops;
+	disk->flags |= GENHD_FL_NO_PART;
 	disk->events = DISK_EVENT_MEDIA_CHANGE;
 	if (type)
 		sprintf(disk->disk_name, "fd%d_type%d", drive, type);
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index c3a36cfaa855..e98ddf08d77d 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1061,7 +1061,7 @@ static int loop_configure(struct loop_device *lo, fmode_t mode,
 		lo->lo_flags |= LO_FLAGS_PARTSCAN;
 	partscan = lo->lo_flags & LO_FLAGS_PARTSCAN;
 	if (partscan)
-		lo->lo_disk->flags &= ~GENHD_FL_NO_PART_SCAN;
+		lo->lo_disk->flags &= ~GENHD_FL_NO_PART;
 
 	loop_global_unlock(lo, is_loop);
 	if (partscan)
@@ -1191,7 +1191,7 @@ out_unlock:
 	mutex_lock(&lo->lo_mutex);
 	lo->lo_flags = 0;
 	if (!part_shift)
-		lo->lo_disk->flags |= GENHD_FL_NO_PART_SCAN;
+		lo->lo_disk->flags |= GENHD_FL_NO_PART;
 	lo->lo_state = Lo_unbound;
 	mutex_unlock(&lo->lo_mutex);
 
@@ -1301,7 +1301,7 @@ out_unfreeze:
 
 	if (!err && (lo->lo_flags & LO_FLAGS_PARTSCAN) &&
 	     !(prev_lo_flags & LO_FLAGS_PARTSCAN)) {
-		lo->lo_disk->flags &= ~GENHD_FL_NO_PART_SCAN;
+		lo->lo_disk->flags &= ~GENHD_FL_NO_PART;
 		partscan = true;
 	}
 out_unlock:
@@ -2032,8 +2032,7 @@ static int loop_add(int i)
 	 * userspace tools. Parameters like this in general should be avoided.
 	 */
 	if (!part_shift)
-		disk->flags |= GENHD_FL_NO_PART_SCAN;
-	disk->flags |= GENHD_FL_EXT_DEVT;
+		disk->flags |= GENHD_FL_NO_PART;
 	atomic_set(&lo->lo_refcnt, 0);
 	mutex_init(&lo->lo_mutex);
 	lo->lo_number		= i;
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index c91b9010c1a6..30f471021a40 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -1015,7 +1015,7 @@ static int mtip_exec_internal_command(struct mtip_port *port,
 	rq->timeout = timeout;
 
 	/* insert request and run queue */
-	blk_execute_rq(NULL, rq, true);
+	blk_execute_rq(rq, true);
 
 	if (int_cmd->status) {
 		dev_err(&dd->pdev->dev, "Internal command [%02X] failed %d\n",
diff --git a/drivers/block/n64cart.c b/drivers/block/n64cart.c
index 78282f01f581..4db9a8c244af 100644
--- a/drivers/block/n64cart.c
+++ b/drivers/block/n64cart.c
@@ -136,7 +136,7 @@ static int __init n64cart_probe(struct platform_device *pdev)
 		goto out;
 
 	disk->first_minor = 0;
-	disk->flags = GENHD_FL_NO_PART_SCAN;
+	disk->flags = GENHD_FL_NO_PART;
 	disk->fops = &n64cart_fops;
 	disk->private_data = &pdev->dev;
 	strcpy(disk->disk_name, "n64cart");
diff --git a/drivers/block/null_blk/main.c b/drivers/block/null_blk/main.c
index 323af5c9c802..54f7d490f8eb 100644
--- a/drivers/block/null_blk/main.c
+++ b/drivers/block/null_blk/main.c
@@ -1850,7 +1850,6 @@ static int null_gendisk_register(struct nullb *nullb)
 
 	set_capacity(disk, size);
 
-	disk->flags |= GENHD_FL_EXT_DEVT | GENHD_FL_SUPPRESS_PARTITION_INFO;
 	disk->major		= null_major;
 	disk->first_minor	= nullb->index;
 	disk->minors		= 1;
diff --git a/drivers/block/null_blk/trace.h b/drivers/block/null_blk/trace.h
index ce3b430e88c5..86d6c12c603c 100644
--- a/drivers/block/null_blk/trace.h
+++ b/drivers/block/null_blk/trace.h
@@ -44,7 +44,7 @@ TRACE_EVENT(nullb_zone_op,
 		__entry->op = req_op(cmd->rq);
 		__entry->zone_no = zone_no;
 		__entry->zone_cond = zone_cond;
-		__assign_disk_name(__entry->disk, cmd->rq->rq_disk);
+		__assign_disk_name(__entry->disk, cmd->rq->q->disk);
 	    ),
 	    TP_printk("%s req=%-15s zone_no=%u zone_cond=%-10s",
 		      __print_disk_name(__entry->disk),
diff --git a/drivers/block/paride/pcd.c b/drivers/block/paride/pcd.c
index f6b1d63e96e1..f462ad67931a 100644
--- a/drivers/block/paride/pcd.c
+++ b/drivers/block/paride/pcd.c
@@ -690,7 +690,7 @@ static void pcd_request(void)
 	if (!pcd_req && !set_next_request())
 		return;
 
-	cd = pcd_req->rq_disk->private_data;
+	cd = pcd_req->q->disk->private_data;
 	if (cd != pcd_current)
 		pcd_bufblk = -1;
 	pcd_current = cd;
@@ -928,8 +928,9 @@ static int pcd_init_unit(struct pcd_unit *cd, bool autoprobe, int port,
 	disk->minors = 1;
 	strcpy(disk->disk_name, cd->name);	/* umm... */
 	disk->fops = &pcd_bdops;
-	disk->flags = GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE;
+	disk->flags |= GENHD_FL_NO_PART;
 	disk->events = DISK_EVENT_MEDIA_CHANGE;
+	disk->event_flags = DISK_EVENT_FLAG_BLOCK_ON_EXCL_WRITE;
 
 	if (!pi_init(cd->pi, autoprobe, port, mode, unit, protocol, delay,
 			pcd_buffer, PI_PCD, verbose, cd->name)) {
diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c
index fba865058a17..3637c38c72f9 100644
--- a/drivers/block/paride/pd.c
+++ b/drivers/block/paride/pd.c
@@ -430,7 +430,7 @@ static void run_fsm(void)
 		int stop = 0;
 
 		if (!phase) {
-			pd_current = pd_req->rq_disk->private_data;
+			pd_current = pd_req->q->disk->private_data;
 			pi_current = pd_current->pi;
 			phase = do_pd_io_start;
 		}
@@ -492,7 +492,7 @@ static enum action do_pd_io_start(void)
 	case REQ_OP_WRITE:
 		pd_block = blk_rq_pos(pd_req);
 		pd_count = blk_rq_cur_sectors(pd_req);
-		if (pd_block + pd_count > get_capacity(pd_req->rq_disk))
+		if (pd_block + pd_count > get_capacity(pd_req->q->disk))
 			return Fail;
 		pd_run = blk_rq_sectors(pd_req);
 		pd_buf = bio_data(pd_req->bio);
@@ -781,7 +781,7 @@ static int pd_special_command(struct pd_unit *disk,
 	req = blk_mq_rq_to_pdu(rq);
 
 	req->func = func;
-	blk_execute_rq(disk->gd, rq, 0);
+	blk_execute_rq(rq, false);
 	blk_mq_free_request(rq);
 	return 0;
 }
diff --git a/drivers/block/paride/pf.c b/drivers/block/paride/pf.c
index bf8d0ef41a0a..292e9a4ce1b9 100644
--- a/drivers/block/paride/pf.c
+++ b/drivers/block/paride/pf.c
@@ -746,12 +746,12 @@ repeat:
 	if (!pf_req && !set_next_request())
 		return;
 
-	pf_current = pf_req->rq_disk->private_data;
+	pf_current = pf_req->q->disk->private_data;
 	pf_block = blk_rq_pos(pf_req);
 	pf_run = blk_rq_sectors(pf_req);
 	pf_count = blk_rq_cur_sectors(pf_req);
 
-	if (pf_block + pf_count > get_capacity(pf_req->rq_disk)) {
+	if (pf_block + pf_count > get_capacity(pf_req->q->disk)) {
 		pf_end_request(BLK_STS_IOERR);
 		goto repeat;
 	}
@@ -942,6 +942,7 @@ static int __init pf_init_unit(struct pf_unit *pf, bool autoprobe, int port,
 	disk->minors = 1;
 	strcpy(disk->disk_name, pf->name);
 	disk->fops = &pf_fops;
+	disk->flags |= GENHD_FL_NO_PART;
 	disk->events = DISK_EVENT_MEDIA_CHANGE;
 	disk->private_data = pf;
 
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index b53f648302c1..887c98d61684 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -722,7 +722,7 @@ static int pkt_generic_packet(struct pktcdvd_device *pd, struct packet_command *
 	if (cgc->quiet)
 		rq->rq_flags |= RQF_QUIET;
 
-	blk_execute_rq(pd->bdev->bd_disk, rq, 0);
+	blk_execute_rq(rq, false);
 	if (scsi_req(rq)->result)
 		ret = -EIO;
 out:
@@ -2719,7 +2719,7 @@ static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev)
 	disk->first_minor = idx;
 	disk->minors = 1;
 	disk->fops = &pktcdvd_ops;
-	disk->flags = GENHD_FL_REMOVABLE;
+	disk->flags = GENHD_FL_REMOVABLE | GENHD_FL_NO_PART;
 	strcpy(disk->disk_name, pd->name);
 	disk->private_data = pd;
 
diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c
index c1876646a4cb..4f90819e245e 100644
--- a/drivers/block/ps3vram.c
+++ b/drivers/block/ps3vram.c
@@ -742,6 +742,7 @@ static int ps3vram_probe(struct ps3_system_bus_device *dev)
 	priv->gendisk = gendisk;
 	gendisk->major = ps3vram_major;
 	gendisk->minors = 1;
+	gendisk->flags |= GENHD_FL_NO_PART;
 	gendisk->fops = &ps3vram_fops;
 	gendisk->private_data = dev;
 	strlcpy(gendisk->disk_name, DEVICE_NAME, sizeof(gendisk->disk_name));
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 953fa134cd3d..8f140da1efe3 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -4924,12 +4924,10 @@ static int rbd_init_disk(struct rbd_device *rbd_dev)
 		 rbd_dev->dev_id);
 	disk->major = rbd_dev->major;
 	disk->first_minor = rbd_dev->minor;
-	if (single_major) {
+	if (single_major)
 		disk->minors = (1 << RBD_SINGLE_MAJOR_PART_SHIFT);
-		disk->flags |= GENHD_FL_EXT_DEVT;
-	} else {
+	else
 		disk->minors = RBD_MINORS_PER_MAJOR;
-	}
 	disk->fops = &rbd_bd_ops;
 	disk->private_data = rbd_dev;
 
diff --git a/drivers/block/rnbd/rnbd-clt.c b/drivers/block/rnbd/rnbd-clt.c
index 2df0657cdf00..67a8edbaa1fd 100644
--- a/drivers/block/rnbd/rnbd-clt.c
+++ b/drivers/block/rnbd/rnbd-clt.c
@@ -393,7 +393,7 @@ static void rnbd_put_iu(struct rnbd_clt_session *sess, struct rnbd_iu *iu)
 
 static void rnbd_softirq_done_fn(struct request *rq)
 {
-	struct rnbd_clt_dev *dev	= rq->rq_disk->private_data;
+	struct rnbd_clt_dev *dev	= rq->q->disk->private_data;
 	struct rnbd_clt_session *sess	= dev->sess;
 	struct rnbd_iu *iu;
 
@@ -1133,7 +1133,7 @@ static blk_status_t rnbd_queue_rq(struct blk_mq_hw_ctx *hctx,
 				   const struct blk_mq_queue_data *bd)
 {
 	struct request *rq = bd->rq;
-	struct rnbd_clt_dev *dev = rq->rq_disk->private_data;
+	struct rnbd_clt_dev *dev = rq->q->disk->private_data;
 	struct rnbd_iu *iu = blk_mq_rq_to_pdu(rq);
 	int err;
 	blk_status_t ret = BLK_STS_IOERR;
diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c
index 6f45a53f7cbf..146d85d80e0e 100644
--- a/drivers/block/sunvdc.c
+++ b/drivers/block/sunvdc.c
@@ -143,8 +143,8 @@ static int vdc_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 static int vdc_ioctl(struct block_device *bdev, fmode_t mode,
 		     unsigned command, unsigned long argument)
 {
+	struct vdc_port *port = bdev->bd_disk->private_data;
 	int i;
-	struct gendisk *disk;
 
 	switch (command) {
 	case CDROMMULTISESSION:
@@ -155,12 +155,15 @@ static int vdc_ioctl(struct block_device *bdev, fmode_t mode,
 		return 0;
 
 	case CDROM_GET_CAPABILITY:
-		disk = bdev->bd_disk;
-
-		if (bdev->bd_disk && (disk->flags & GENHD_FL_CD))
+		if (!vdc_version_supported(port, 1, 1))
+			return -EINVAL;
+		switch (port->vdisk_mtype) {
+		case VD_MEDIA_TYPE_CD:
+		case VD_MEDIA_TYPE_DVD:
 			return 0;
-		return -EINVAL;
-
+		default:
+			return -EINVAL;
+		}
 	default:
 		pr_debug(PFX "ioctl %08x not supported\n", command);
 		return -EINVAL;
@@ -459,7 +462,7 @@ static int __vdc_tx_trigger(struct vdc_port *port)
 
 static int __send_request(struct request *req)
 {
-	struct vdc_port *port = req->rq_disk->private_data;
+	struct vdc_port *port = req->q->disk->private_data;
 	struct vio_dring_state *dr = &port->vio.drings[VIO_DRIVER_TX_RING];
 	struct scatterlist sg[MAX_RING_COOKIES];
 	struct vdc_req_entry *rqe;
@@ -854,14 +857,12 @@ static int probe_disk(struct vdc_port *port)
 		switch (port->vdisk_mtype) {
 		case VD_MEDIA_TYPE_CD:
 			pr_info(PFX "Virtual CDROM %s\n", port->disk_name);
-			g->flags |= GENHD_FL_CD;
 			g->flags |= GENHD_FL_REMOVABLE;
 			set_disk_ro(g, 1);
 			break;
 
 		case VD_MEDIA_TYPE_DVD:
 			pr_info(PFX "Virtual DVD %s\n", port->disk_name);
-			g->flags |= GENHD_FL_CD;
 			g->flags |= GENHD_FL_REMOVABLE;
 			set_disk_ro(g, 1);
 			break;
diff --git a/drivers/block/swim.c b/drivers/block/swim.c
index 821594cd1315..fef65a18d56f 100644
--- a/drivers/block/swim.c
+++ b/drivers/block/swim.c
@@ -840,6 +840,7 @@ static int swim_floppy_init(struct swim_priv *swd)
 		swd->unit[drive].disk->minors = 1;
 		sprintf(swd->unit[drive].disk->disk_name, "fd%d", drive);
 		swd->unit[drive].disk->fops = &floppy_fops;
+		swd->unit[drive].disk->flags |= GENHD_FL_NO_PART;
 		swd->unit[drive].disk->events = DISK_EVENT_MEDIA_CHANGE;
 		swd->unit[drive].disk->private_data = &swd->unit[drive];
 		set_capacity(swd->unit[drive].disk, 2880);
diff --git a/drivers/block/swim3.c b/drivers/block/swim3.c
index 4b91c9aa5892..6c39f2c9f806 100644
--- a/drivers/block/swim3.c
+++ b/drivers/block/swim3.c
@@ -1227,7 +1227,7 @@ static int swim3_attach(struct macio_dev *mdev,
 	disk->fops = &floppy_fops;
 	disk->private_data = fs;
 	disk->events = DISK_EVENT_MEDIA_CHANGE;
-	disk->flags |= GENHD_FL_REMOVABLE;
+	disk->flags |= GENHD_FL_REMOVABLE | GENHD_FL_NO_PART;
 	sprintf(disk->disk_name, "fd%d", floppy_count);
 	set_capacity(disk, 2880);
 	rc = add_disk(disk);
diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c
index d1676fe0da1a..b361583944b9 100644
--- a/drivers/block/sx8.c
+++ b/drivers/block/sx8.c
@@ -540,7 +540,7 @@ static int carm_array_info (struct carm_host *host, unsigned int array_idx)
 	spin_unlock_irq(&host->lock);
 
 	DPRINTK("blk_execute_rq_nowait, tag == %u\n", rq->tag);
-	blk_execute_rq_nowait(NULL, rq, true, NULL);
+	blk_execute_rq_nowait(rq, true, NULL);
 
 	return 0;
 
@@ -579,7 +579,7 @@ static int carm_send_special (struct carm_host *host, carm_sspc_t func)
 	crq->msg_bucket = (u32) rc;
 
 	DPRINTK("blk_execute_rq_nowait, tag == %u\n", rq->tag);
-	blk_execute_rq_nowait(NULL, rq, true, NULL);
+	blk_execute_rq_nowait(rq, true, NULL);
 
 	return 0;
 }
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 6ae38776e30e..c3dc3cd7a779 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -384,7 +384,7 @@ static int virtblk_get_id(struct gendisk *disk, char *id_str)
 	if (err)
 		goto out;
 
-	blk_execute_rq(vblk->disk, req, false);
+	blk_execute_rq(req, false);
 	err = blk_status_to_errno(virtblk_result(blk_mq_rq_to_pdu(req)));
 out:
 	blk_mq_free_request(req);
@@ -843,7 +843,6 @@ static int virtblk_probe(struct virtio_device *vdev)
 	vblk->disk->minors = 1 << PART_BITS;
 	vblk->disk->private_data = vblk;
 	vblk->disk->fops = &virtblk_fops;
-	vblk->disk->flags |= GENHD_FL_EXT_DEVT;
 	vblk->index = index;
 
 	/* configure queue flush support */
diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c
index 914587aabca0..62125fd4af4a 100644
--- a/drivers/block/xen-blkback/xenbus.c
+++ b/drivers/block/xen-blkback/xenbus.c
@@ -510,7 +510,7 @@ static int xen_vbd_create(struct xen_blkif *blkif, blkif_vdev_t handle,
 	}
 	vbd->size = vbd_sz(vbd);
 
-	if (vbd->bdev->bd_disk->flags & GENHD_FL_CD || cdrom)
+	if (cdrom || disk_to_cdi(vbd->bdev->bd_disk))
 		vbd->type |= VDISK_CDROM;
 	if (vbd->bdev->bd_disk->flags & GENHD_FL_REMOVABLE)
 		vbd->type |= VDISK_REMOVABLE;
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 286cf1afad78..ccd0dd0c6b83 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -198,6 +198,7 @@ struct blkfront_info
 	struct gendisk *gd;
 	u16 sector_size;
 	unsigned int physical_sector_size;
+	unsigned long vdisk_info;
 	int vdevice;
 	blkif_vdev_t handle;
 	enum blkif_state connected;
@@ -505,6 +506,7 @@ static int blkif_getgeo(struct block_device *bd, struct hd_geometry *hg)
 static int blkif_ioctl(struct block_device *bdev, fmode_t mode,
 		       unsigned command, unsigned long argument)
 {
+	struct blkfront_info *info = bdev->bd_disk->private_data;
 	int i;
 
 	switch (command) {
@@ -514,9 +516,9 @@ static int blkif_ioctl(struct block_device *bdev, fmode_t mode,
 				return -EFAULT;
 		return 0;
 	case CDROM_GET_CAPABILITY:
-		if (bdev->bd_disk->flags & GENHD_FL_CD)
-			return 0;
-		return -EINVAL;
+		if (!(info->vdisk_info & VDISK_CDROM))
+			return -EINVAL;
+		return 0;
 	default:
 		return -EINVAL;
 	}
@@ -1057,9 +1059,8 @@ static char *encode_disk_name(char *ptr, unsigned int n)
 }
 
 static int xlvbd_alloc_gendisk(blkif_sector_t capacity,
-			       struct blkfront_info *info,
-			       u16 vdisk_info, u16 sector_size,
-			       unsigned int physical_sector_size)
+		struct blkfront_info *info, u16 sector_size,
+		unsigned int physical_sector_size)
 {
 	struct gendisk *gd;
 	int nr_minors = 1;
@@ -1157,15 +1158,11 @@ static int xlvbd_alloc_gendisk(blkif_sector_t capacity,
 
 	xlvbd_flush(info);
 
-	if (vdisk_info & VDISK_READONLY)
+	if (info->vdisk_info & VDISK_READONLY)
 		set_disk_ro(gd, 1);
-
-	if (vdisk_info & VDISK_REMOVABLE)
+	if (info->vdisk_info & VDISK_REMOVABLE)
 		gd->flags |= GENHD_FL_REMOVABLE;
 
-	if (vdisk_info & VDISK_CDROM)
-		gd->flags |= GENHD_FL_CD;
-
 	return 0;
 
 out_free_tag_set:
@@ -2313,7 +2310,6 @@ static void blkfront_connect(struct blkfront_info *info)
 	unsigned long long sectors;
 	unsigned long sector_size;
 	unsigned int physical_sector_size;
-	unsigned int binfo;
 	int err, i;
 	struct blkfront_ring_info *rinfo;
 
@@ -2351,7 +2347,7 @@ static void blkfront_connect(struct blkfront_info *info)
 
 	err = xenbus_gather(XBT_NIL, info->xbdev->otherend,
 			    "sectors", "%llu", &sectors,
-			    "info", "%u", &binfo,
+			    "info", "%u", &info->vdisk_info,
 			    "sector-size", "%lu", &sector_size,
 			    NULL);
 	if (err) {
@@ -2380,7 +2376,7 @@ static void blkfront_connect(struct blkfront_info *info)
 		}
 	}
 
-	err = xlvbd_alloc_gendisk(sectors, info, binfo, sector_size,
+	err = xlvbd_alloc_gendisk(sectors, info, sector_size,
 				  physical_sector_size);
 	if (err) {
 		xenbus_dev_fatal(info->xbdev, err, "xlvbd_add at %s",
diff --git a/drivers/block/z2ram.c b/drivers/block/z2ram.c
index ccc52c935faf..7a6ed83481b8 100644
--- a/drivers/block/z2ram.c
+++ b/drivers/block/z2ram.c
@@ -327,6 +327,7 @@ static int z2ram_register_disk(int minor)
 	disk->major = Z2RAM_MAJOR;
 	disk->first_minor = minor;
 	disk->minors = 1;
+	disk->flags |= GENHD_FL_NO_PART;
 	disk->fops = &z2_fops;
 	if (minor)
 		sprintf(disk->disk_name, "z2ram%d", minor);
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 25071126995b..f6da5293b913 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1947,6 +1947,7 @@ static int zram_add(void)
 	zram->disk->major = zram_major;
 	zram->disk->first_minor = device_id;
 	zram->disk->minors = 1;
+	zram->disk->flags |= GENHD_FL_NO_PART;
 	zram->disk->fops = &zram_devops;
 	zram->disk->private_data = zram;
 	snprintf(zram->disk->disk_name, 16, "zram%d", device_id);