Merge tag 'for-5.12/block-2021-02-17' of git://git.kernel.dk/linux-block

Pull core block updates from Jens Axboe:
 "Another nice round of removing more code than what is added, mostly
  due to Christoph's relentless pursuit of tech debt removal/cleanups.
  This pull request contains:

   - Two series of BFQ improvements (Paolo, Jan, Jia)

   - Block iov_iter improvements (Pavel)

   - bsg error path fix (Pan)

   - blk-mq scheduler improvements (Jan)

   - -EBUSY discard fix (Jan)

   - bvec allocation improvements (Ming, Christoph)

   - bio allocation and init improvements (Christoph)

   - Store bdev pointer in bio instead of gendisk + partno (Christoph)

   - Block trace point cleanups (Christoph)

   - hard read-only vs read-only split (Christoph)

   - Block based swap cleanups (Christoph)

   - Zoned write granularity support (Damien)

   - Various fixes/tweaks (Chunguang, Guoqing, Lei, Lukas, Huhai)"

* tag 'for-5.12/block-2021-02-17' of git://git.kernel.dk/linux-block: (104 commits)
  mm: simplify swapdev_block
  sd_zbc: clear zone resources for non-zoned case
  block: introduce blk_queue_clear_zone_settings()
  zonefs: use zone write granularity as block size
  block: introduce zone_write_granularity limit
  block: use blk_queue_set_zoned in add_partition()
  nullb: use blk_queue_set_zoned() to setup zoned devices
  nvme: cleanup zone information initialization
  block: document zone_append_max_bytes attribute
  block: use bi_max_vecs to find the bvec pool
  md/raid10: remove dead code in reshape_request
  block: mark the bio as cloned in bio_iov_bvec_set
  block: set BIO_NO_PAGE_REF in bio_iov_bvec_set
  block: remove a layer of indentation in bio_iov_iter_get_pages
  block: turn the nr_iovecs argument to bio_alloc* into an unsigned short
  block: remove the 1 and 4 vec bvec_slabs entries
  block: streamline bvec_alloc
  block: factor out a bvec_alloc_gfp helper
  block: move struct biovec_slab to bio.c
  block: reuse BIO_INLINE_VECS for integrity bvecs
  ...

71 files changed, 282 insertions, 371 deletions

diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index c43a6ab4b1f39f..18bf9990666207 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -284,15 +284,11 @@ out:
 
 static blk_qc_t brd_submit_bio(struct bio *bio)
 {
-	struct brd_device *brd = bio->bi_disk->private_data;
+	struct brd_device *brd = bio->bi_bdev->bd_disk->private_data;
+	sector_t sector = bio->bi_iter.bi_sector;
 	struct bio_vec bvec;
-	sector_t sector;
 	struct bvec_iter iter;
 
-	sector = bio->bi_iter.bi_sector;
-	if (bio_end_sector(bio) > get_capacity(bio->bi_disk))
-		goto io_error;
-
 	bio_for_each_segment(bvec, bio, iter) {
 		unsigned int len = bvec.bv_len;
 		int err;
diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c
index 7227fc7ab8ed1e..72cf7603d51fc7 100644
--- a/drivers/block/drbd/drbd_actlog.c
+++ b/drivers/block/drbd/drbd_actlog.c
@@ -138,7 +138,7 @@ static int _drbd_md_sync_page_io(struct drbd_device *device,
 		op_flags |= REQ_FUA | REQ_PREFLUSH;
 	op_flags |= REQ_SYNC;
 
-	bio = bio_alloc_drbd(GFP_NOIO);
+	bio = bio_alloc_bioset(GFP_NOIO, 1, &drbd_md_io_bio_set);
 	bio_set_dev(bio, bdev->md_bdev);
 	bio->bi_iter.bi_sector = sector;
 	err = -EIO;
diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
index df53dca5d02c7e..c1f816f896a89a 100644
--- a/drivers/block/drbd/drbd_bitmap.c
+++ b/drivers/block/drbd/drbd_bitmap.c
@@ -976,7 +976,7 @@ static void drbd_bm_endio(struct bio *bio)
 
 static void bm_page_io_async(struct drbd_bm_aio_ctx *ctx, int page_nr) __must_hold(local)
 {
-	struct bio *bio = bio_alloc_drbd(GFP_NOIO);
+	struct bio *bio = bio_alloc_bioset(GFP_NOIO, 1, &drbd_md_io_bio_set);
 	struct drbd_device *device = ctx->device;
 	struct drbd_bitmap *b = device->bitmap;
 	struct page *page;
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 8f879e5c2f6706..02db50d7e4c668 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -1422,8 +1422,6 @@ extern mempool_t drbd_md_io_page_pool;
 /* We also need to make sure we get a bio
  * when we need it for housekeeping purposes */
 extern struct bio_set drbd_md_io_bio_set;
-/* to allocate from that set */
-extern struct bio *bio_alloc_drbd(gfp_t gfp_mask);
 
 /* And a bio_set for cloning */
 extern struct bio_set drbd_io_bio_set;
@@ -1579,8 +1577,8 @@ static inline void drbd_submit_bio_noacct(struct drbd_device *device,
 					     int fault_type, struct bio *bio)
 {
 	__release(local);
-	if (!bio->bi_disk) {
-		drbd_err(device, "drbd_submit_bio_noacct: bio->bi_disk == NULL\n");
+	if (!bio->bi_bdev) {
+		drbd_err(device, "drbd_submit_bio_noacct: bio->bi_bdev == NULL\n");
 		bio->bi_status = BLK_STS_IOERR;
 		bio_endio(bio);
 		return;
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 1c8c18b2a25f33..788dd97e6026b8 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -138,19 +138,6 @@ static const struct block_device_operations drbd_ops = {
 	.release	= drbd_release,
 };
 
-struct bio *bio_alloc_drbd(gfp_t gfp_mask)
-{
-	struct bio *bio;
-
-	if (!bioset_initialized(&drbd_md_io_bio_set))
-		return bio_alloc(gfp_mask, 1);
-
-	bio = bio_alloc_bioset(gfp_mask, 1, &drbd_md_io_bio_set);
-	if (!bio)
-		return NULL;
-	return bio;
-}
-
 #ifdef __CHECKER__
 /* When checking with sparse, and this is an inline function, sparse will
    give tons of false positives. When this is a real functions sparse works.
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index 330f851cb8f0b0..9dbb660a7d7c8e 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -30,7 +30,10 @@ static struct drbd_request *drbd_req_new(struct drbd_device *device, struct bio
 		return NULL;
 	memset(req, 0, sizeof(*req));
 
-	drbd_req_make_private_bio(req, bio_src);
+	req->private_bio = bio_clone_fast(bio_src, GFP_NOIO, &drbd_io_bio_set);
+	req->private_bio->bi_private = req;
+	req->private_bio->bi_end_io = drbd_request_endio;
+
 	req->rq_state = (bio_data_dir(bio_src) == WRITE ? RQ_WRITE : 0)
 		      | (bio_op(bio_src) == REQ_OP_WRITE_SAME ? RQ_WSAME : 0)
 		      | (bio_op(bio_src) == REQ_OP_WRITE_ZEROES ? RQ_ZEROES : 0)
@@ -1595,7 +1598,7 @@ void do_submit(struct work_struct *ws)
 
 blk_qc_t drbd_submit_bio(struct bio *bio)
 {
-	struct drbd_device *device = bio->bi_disk->private_data;
+	struct drbd_device *device = bio->bi_bdev->bd_disk->private_data;
 	unsigned long start_jif;
 
 	blk_queue_split(&bio);
diff --git a/drivers/block/drbd/drbd_req.h b/drivers/block/drbd/drbd_req.h
index 55bb0f8721faa3..511f39a08de453 100644
--- a/drivers/block/drbd/drbd_req.h
+++ b/drivers/block/drbd/drbd_req.h
@@ -256,18 +256,6 @@ enum drbd_req_state_bits {
 #define MR_WRITE       1
 #define MR_READ        2
 
-static inline void drbd_req_make_private_bio(struct drbd_request *req, struct bio *bio_src)
-{
-	struct bio *bio;
-	bio = bio_clone_fast(bio_src, GFP_NOIO, &drbd_io_bio_set);
-
-	req->private_bio = bio;
-
-	bio->bi_private  = req;
-	bio->bi_end_io   = drbd_request_endio;
-	bio->bi_next     = NULL;
-}
-
 /* Short lived temporary struct on the stack.
  * We could squirrel the error to be returned into
  * bio->bi_iter.bi_size, or similar. But that would be too ugly. */
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index 02044ab7f767d5..64563bfdf0da02 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -1523,8 +1523,11 @@ int w_restart_disk_io(struct drbd_work *w, int cancel)
 	if (bio_data_dir(req->master_bio) == WRITE && req->rq_state & RQ_IN_ACT_LOG)
 		drbd_al_begin_io(device, &req->i);
 
-	drbd_req_make_private_bio(req, req->master_bio);
+	req->private_bio = bio_clone_fast(req->master_bio, GFP_NOIO,
+					  &drbd_io_bio_set);
 	bio_set_dev(req->private_bio, device->ldev->backing_bdev);
+	req->private_bio->bi_private = req;
+	req->private_bio->bi_end_io = drbd_request_endio;
 	submit_bio_noacct(req->private_bio);
 
 	return 0;
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 53ac59d19ae530..3fd99836bb1c42 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(rq->q, NULL, rq, true);
+	blk_execute_rq(NULL, rq, true);
 
 	if (int_cmd->status) {
 		dev_err(&dd->pdev->dev, "Internal command [%02X] failed %d\n",
diff --git a/drivers/block/null_blk/main.c b/drivers/block/null_blk/main.c
index 5357c3a4a36fc3..d6c821d48090a3 100644
--- a/drivers/block/null_blk/main.c
+++ b/drivers/block/null_blk/main.c
@@ -1420,7 +1420,7 @@ static blk_qc_t null_submit_bio(struct bio *bio)
 {
 	sector_t sector = bio->bi_iter.bi_sector;
 	sector_t nr_sectors = bio_sectors(bio);
-	struct nullb *nullb = bio->bi_disk->private_data;
+	struct nullb *nullb = bio->bi_bdev->bd_disk->private_data;
 	struct nullb_queue *nq = nullb_to_queue(nullb);
 	struct nullb_cmd *cmd;
 
diff --git a/drivers/block/null_blk/zoned.c b/drivers/block/null_blk/zoned.c
index fce0a54df0e5ff..bfcab1c782b530 100644
--- a/drivers/block/null_blk/zoned.c
+++ b/drivers/block/null_blk/zoned.c
@@ -148,10 +148,6 @@ int null_init_zoned_dev(struct nullb_device *dev, struct request_queue *q)
 		sector += dev->zone_size_sects;
 	}
 
-	q->limits.zoned = BLK_ZONED_HM;
-	blk_queue_flag_set(QUEUE_FLAG_ZONE_RESETALL, q);
-	blk_queue_required_elevator_features(q, ELEVATOR_F_ZBD_SEQ_WRITE);
-
 	return 0;
 }
 
@@ -160,6 +156,10 @@ int null_register_zoned_dev(struct nullb *nullb)
 	struct nullb_device *dev = nullb->dev;
 	struct request_queue *q = nullb->q;
 
+	blk_queue_set_zoned(nullb->disk, BLK_ZONED_HM);
+	blk_queue_flag_set(QUEUE_FLAG_ZONE_RESETALL, q);
+	blk_queue_required_elevator_features(q, ELEVATOR_F_ZBD_SEQ_WRITE);
+
 	if (queue_is_mq(q)) {
 		int ret = blk_revalidate_disk_zones(nullb->disk, NULL);
 
diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c
index a7af4f27b7c3f1..897acda20ac85a 100644
--- a/drivers/block/paride/pd.c
+++ b/drivers/block/paride/pd.c
@@ -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->queue, disk->gd, rq, 0);
+	blk_execute_rq(disk->gd, rq, 0);
 	blk_put_request(rq);
 	return 0;
 }
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index b8bb8ec7538d9b..fc4b0f1aa86dfb 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(rq->q, pd->bdev->bd_disk, rq, 0);
+	blk_execute_rq(pd->bdev->bd_disk, rq, 0);
 	if (scsi_req(rq)->result)
 		ret = -EIO;
 out:
@@ -2374,7 +2374,7 @@ static blk_qc_t pkt_submit_bio(struct bio *bio)
 
 	blk_queue_split(&bio);
 
-	pd = bio->bi_disk->queue->queuedata;
+	pd = bio->bi_bdev->bd_disk->queue->queuedata;
 	if (!pd) {
 		pr_err("%s incorrect request queue\n", bio_devname(bio, b));
 		goto end_io;
@@ -2418,7 +2418,7 @@ static blk_qc_t pkt_submit_bio(struct bio *bio)
 			split = bio;
 		}
 
-		pkt_make_request_write(bio->bi_disk->queue, split);
+		pkt_make_request_write(bio->bi_bdev->bd_disk->queue, split);
 	} while (split != bio);
 
 	return BLK_QC_T_NONE;
diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c
index b71d28372ef3c8..1d738999fb69a0 100644
--- a/drivers/block/ps3vram.c
+++ b/drivers/block/ps3vram.c
@@ -581,7 +581,7 @@ out:
 
 static blk_qc_t ps3vram_submit_bio(struct bio *bio)
 {
-	struct ps3_system_bus_device *dev = bio->bi_disk->private_data;
+	struct ps3_system_bus_device *dev = bio->bi_bdev->bd_disk->private_data;
 	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 	int busy;
 
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 59cfe71d0b3a39..bbb88eb009e0ba 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -692,29 +692,10 @@ static void rbd_release(struct gendisk *disk, fmode_t mode)
 	put_device(&rbd_dev->dev);
 }
 
-static int rbd_set_read_only(struct block_device *bdev, bool ro)
-{
-	struct rbd_device *rbd_dev = bdev->bd_disk->private_data;
-
-	/*
-	 * Both images mapped read-only and snapshots can't be marked
-	 * read-write.
-	 */
-	if (!ro) {
-		if (rbd_is_ro(rbd_dev))
-			return -EROFS;
-
-		rbd_assert(!rbd_is_snap(rbd_dev));
-	}
-
-	return 0;
-}
-
 static const struct block_device_operations rbd_bd_ops = {
 	.owner			= THIS_MODULE,
 	.open			= rbd_open,
 	.release		= rbd_release,
-	.set_read_only		= rbd_set_read_only,
 };
 
 /*
diff --git a/drivers/block/rsxx/dev.c b/drivers/block/rsxx/dev.c
index edacefff6e355b..9a28322a8cd893 100644
--- a/drivers/block/rsxx/dev.c
+++ b/drivers/block/rsxx/dev.c
@@ -122,7 +122,7 @@ static void bio_dma_done_cb(struct rsxx_cardinfo *card,
 
 static blk_qc_t rsxx_submit_bio(struct bio *bio)
 {
-	struct rsxx_cardinfo *card = bio->bi_disk->private_data;
+	struct rsxx_cardinfo *card = bio->bi_bdev->bd_disk->private_data;
 	struct rsxx_bio_meta *bio_meta;
 	blk_status_t st = BLK_STS_IOERR;
 
diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c
index 4478eb7efee0bf..2cdf2771f8e82f 100644
--- a/drivers/block/sx8.c
+++ b/drivers/block/sx8.c
@@ -539,7 +539,7 @@ 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(host->oob_q, NULL, rq, true, NULL);
+	blk_execute_rq_nowait(NULL, rq, true, NULL);
 
 	return 0;
 
@@ -578,7 +578,7 @@ 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(host->oob_q, NULL, rq, true, NULL);
+	blk_execute_rq_nowait(NULL, rq, true, NULL);
 
 	return 0;
 }
diff --git a/drivers/block/umem.c b/drivers/block/umem.c
index 2b95d7b33b9186..982732dbe82e69 100644
--- a/drivers/block/umem.c
+++ b/drivers/block/umem.c
@@ -521,7 +521,7 @@ static int mm_check_plugged(struct cardinfo *card)
 
 static blk_qc_t mm_submit_bio(struct bio *bio)
 {
-	struct cardinfo *card = bio->bi_disk->private_data;
+	struct cardinfo *card = bio->bi_bdev->bd_disk->private_data;
 
 	pr_debug("mm_make_request %llu %u\n",
 		 (unsigned long long)bio->bi_iter.bi_sector,
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 145606dc52db1e..b0285db7cf4f66 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -320,7 +320,7 @@ static int virtblk_get_id(struct gendisk *disk, char *id_str)
 	if (err)
 		goto out;
 
-	blk_execute_rq(vblk->disk->queue, vblk->disk, req, false);
+	blk_execute_rq(vblk->disk, req, false);
 	err = blk_status_to_errno(virtblk_result(blk_mq_rq_to_pdu(req)));
 out:
 	blk_put_request(req);
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index e2933cb7a82a33..d6243dbc53cc53 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1596,7 +1596,7 @@ static void __zram_make_request(struct zram *zram, struct bio *bio)
  */
 static blk_qc_t zram_submit_bio(struct bio *bio)
 {
-	struct zram *zram = bio->bi_disk->private_data;
+	struct zram *zram = bio->bi_bdev->bd_disk->private_data;
 
 	if (!valid_io_request(zram, bio->bi_iter.bi_sector,
 					bio->bi_iter.bi_size)) {
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index 8f0e52a7149382..90ad34c6ef8e0a 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -2214,7 +2214,7 @@ static int cdrom_read_cdda_bpc(struct cdrom_device_info *cdi, __u8 __user *ubuf,
 		rq->timeout = 60 * HZ;
 		bio = rq->bio;
 
-		blk_execute_rq(q, cdi->disk, rq, 0);
+		blk_execute_rq(cdi->disk, rq, 0);
 		if (scsi_req(rq)->result) {
 			struct scsi_sense_hdr sshdr;
 
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index 013ad33fbbc81e..a1ce9f5ac3aa1d 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -107,7 +107,7 @@ int ide_queue_pc_tail(ide_drive_t *drive, struct gendisk *disk,
 	memcpy(scsi_req(rq)->cmd, pc->c, 12);
 	if (drive->media == ide_tape)
 		scsi_req(rq)->cmd[13] = REQ_IDETAPE_PC1;
-	blk_execute_rq(drive->queue, disk, rq, 0);
+	blk_execute_rq(disk, rq, 0);
 	error = scsi_req(rq)->result ? -EIO : 0;
 put_req:
 	blk_put_request(rq);
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 25d2d88e82ada0..cffbcc27a34ccd 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -467,7 +467,7 @@ int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd,
 			}
 		}
 
-		blk_execute_rq(drive->queue, info->disk, rq, 0);
+		blk_execute_rq(info->disk, rq, 0);
 		error = scsi_req(rq)->result ? -EIO : 0;
 
 		if (buffer)
diff --git a/drivers/ide/ide-cd_ioctl.c b/drivers/ide/ide-cd_ioctl.c
index 46f2df288c6a1c..011eab9c69b7eb 100644
--- a/drivers/ide/ide-cd_ioctl.c
+++ b/drivers/ide/ide-cd_ioctl.c
@@ -299,7 +299,7 @@ int ide_cdrom_reset(struct cdrom_device_info *cdi)
 	rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, 0);
 	ide_req(rq)->type = ATA_PRIV_MISC;
 	rq->rq_flags = RQF_QUIET;
-	blk_execute_rq(drive->queue, cd->disk, rq, 0);
+	blk_execute_rq(cd->disk, rq, 0);
 	ret = scsi_req(rq)->result ? -EIO : 0;
 	blk_put_request(rq);
 	/*
diff --git a/drivers/ide/ide-devsets.c b/drivers/ide/ide-devsets.c
index f2f93ed4035629..ca1d4b3d387860 100644
--- a/drivers/ide/ide-devsets.c
+++ b/drivers/ide/ide-devsets.c
@@ -173,7 +173,7 @@ int ide_devset_execute(ide_drive_t *drive, const struct ide_devset *setting,
 	*(int *)&scsi_req(rq)->cmd[1] = arg;
 	ide_req(rq)->special = setting->set;
 
-	blk_execute_rq(q, NULL, rq, 0);
+	blk_execute_rq(NULL, rq, 0);
 	ret = scsi_req(rq)->result;
 	blk_put_request(rq);
 
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 34b9441084f84f..8413731c62598b 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -482,7 +482,7 @@ static int set_multcount(ide_drive_t *drive, int arg)
 
 	drive->mult_req = arg;
 	drive->special_flags |= IDE_SFLAG_SET_MULTMODE;
-	blk_execute_rq(drive->queue, NULL, rq, 0);
+	blk_execute_rq(NULL, rq, 0);
 	blk_put_request(rq);
 
 	return (drive->mult_count == arg) ? 0 : -EIO;
diff --git a/drivers/ide/ide-ioctls.c b/drivers/ide/ide-ioctls.c
index 58994da10c0664..43fbc37d85c34a 100644
--- a/drivers/ide/ide-ioctls.c
+++ b/drivers/ide/ide-ioctls.c
@@ -137,7 +137,7 @@ static int ide_cmd_ioctl(ide_drive_t *drive, void __user *argp)
 
 		rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, 0);
 		ide_req(rq)->type = ATA_PRIV_TASKFILE;
-		blk_execute_rq(drive->queue, NULL, rq, 0);
+		blk_execute_rq(NULL, rq, 0);
 		err = scsi_req(rq)->result ? -EIO : 0;
 		blk_put_request(rq);
 
@@ -235,7 +235,7 @@ static int generic_drive_reset(ide_drive_t *drive)
 	ide_req(rq)->type = ATA_PRIV_MISC;
 	scsi_req(rq)->cmd_len = 1;
 	scsi_req(rq)->cmd[0] = REQ_DRIVE_RESET;
-	blk_execute_rq(drive->queue, NULL, rq, 1);
+	blk_execute_rq(NULL, rq, 1);
 	ret = scsi_req(rq)->result;
 	blk_put_request(rq);
 	return ret;
diff --git a/drivers/ide/ide-park.c b/drivers/ide/ide-park.c
index 8af7af6001eb36..a80a0f28f7b9e3 100644
--- a/drivers/ide/ide-park.c
+++ b/drivers/ide/ide-park.c
@@ -37,7 +37,7 @@ static void issue_park_cmd(ide_drive_t *drive, unsigned long timeout)
 	scsi_req(rq)->cmd_len = 1;
 	ide_req(rq)->type = ATA_PRIV_MISC;
 	ide_req(rq)->special = &timeout;
-	blk_execute_rq(q, NULL, rq, 1);
+	blk_execute_rq(NULL, rq, 1);
 	rc = scsi_req(rq)->result ? -EIO : 0;
 	blk_put_request(rq);
 	if (rc)
diff --git a/drivers/ide/ide-pm.c b/drivers/ide/ide-pm.c
index 82ab308f1aafe0..d680b3e3295faa 100644
--- a/drivers/ide/ide-pm.c
+++ b/drivers/ide/ide-pm.c
@@ -27,7 +27,7 @@ int generic_ide_suspend(struct device *dev, pm_message_t mesg)
 		mesg.event = PM_EVENT_FREEZE;
 	rqpm.pm_state = mesg.event;
 
-	blk_execute_rq(drive->queue, NULL, rq, 0);
+	blk_execute_rq(NULL, rq, 0);
 	ret = scsi_req(rq)->result ? -EIO : 0;
 	blk_put_request(rq);
 
@@ -50,7 +50,7 @@ static int ide_pm_execute_rq(struct request *rq)
 		blk_mq_end_request(rq, BLK_STS_OK);
 		return -ENXIO;
 	}
-	blk_execute_rq(q, NULL, rq, true);
+	blk_execute_rq(NULL, rq, true);
 
 	return scsi_req(rq)->result ? -EIO : 0;
 }
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 88b96437b22e62..fa05e7e7d6090b 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -868,7 +868,7 @@ static int idetape_queue_rw_tail(ide_drive_t *drive, int cmd, int size)
 			goto out_put;
 	}
 
-	blk_execute_rq(drive->queue, tape->disk, rq, 0);
+	blk_execute_rq(tape->disk, rq, 0);
 
 	/* calculate the number of transferred bytes and update buffer state */
 	size -= scsi_req(rq)->resid_len;
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index d016cbe68cba17..6665fc4724b996 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -443,7 +443,7 @@ int ide_raw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd, u8 *buf,
 	ide_req(rq)->special = cmd;
 	cmd->rq = rq;
 
-	blk_execute_rq(drive->queue, NULL, rq, 0);
+	blk_execute_rq(NULL, rq, 0);
 	error = scsi_req(rq)->result ? -EIO : 0;
 put_req:
 	blk_put_request(rq);
diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c
index b6246f73895cf8..5924f09c217b62 100644
--- a/drivers/lightnvm/pblk-init.c
+++ b/drivers/lightnvm/pblk-init.c
@@ -49,7 +49,7 @@ struct bio_set pblk_bio_set;
 
 static blk_qc_t pblk_submit_bio(struct bio *bio)
 {
-	struct pblk *pblk = bio->bi_disk->queue->queuedata;
+	struct pblk *pblk = bio->bi_bdev->bd_disk->queue->queuedata;
 
 	if (bio_op(bio) == REQ_OP_DISCARD) {
 		pblk_discard(pblk, bio);
diff --git a/drivers/md/bcache/debug.c b/drivers/md/bcache/debug.c
index b00fd08d696b5f..63e809f38e3f51 100644
--- a/drivers/md/bcache/debug.c
+++ b/drivers/md/bcache/debug.c
@@ -114,7 +114,7 @@ void bch_data_verify(struct cached_dev *dc, struct bio *bio)
 	check = bio_kmalloc(GFP_NOIO, bio_segments(bio));
 	if (!check)
 		return;
-	check->bi_disk = bio->bi_disk;
+	bio_set_dev(check, bio->bi_bdev);
 	check->bi_opf = REQ_OP_READ;
 	check->bi_iter.bi_sector = bio->bi_iter.bi_sector;
 	check->bi_iter.bi_size = bio->bi_iter.bi_size;
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 85b1f2a9b72d68..29c231758293e2 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -475,7 +475,7 @@ struct search {
 	unsigned int		read_dirty_data:1;
 	unsigned int		cache_missed:1;
 
-	struct block_device	*part;
+	struct block_device	*orig_bdev;
 	unsigned long		start_time;
 
 	struct btree_op		op;
@@ -670,8 +670,8 @@ static void bio_complete(struct search *s)
 {
 	if (s->orig_bio) {
 		/* Count on bcache device */
-		part_end_io_acct(s->part, s->orig_bio, s->start_time);
-
+		bio_end_io_acct_remapped(s->orig_bio, s->start_time,
+					 s->orig_bdev);
 		trace_bcache_request_end(s->d, s->orig_bio);
 		s->orig_bio->bi_status = s->iop.status;
 		bio_endio(s->orig_bio);
@@ -714,7 +714,8 @@ static void search_free(struct closure *cl)
 }
 
 static inline struct search *search_alloc(struct bio *bio,
-					  struct bcache_device *d)
+		struct bcache_device *d, struct block_device *orig_bdev,
+		unsigned long start_time)
 {
 	struct search *s;
 
@@ -732,7 +733,8 @@ static inline struct search *search_alloc(struct bio *bio,
 	s->write		= op_is_write(bio_op(bio));
 	s->read_dirty_data	= 0;
 	/* Count on the bcache device */
-	s->start_time		= part_start_io_acct(d->disk, &s->part, bio);
+	s->orig_bdev		= orig_bdev;
+	s->start_time		= start_time;
 	s->iop.c		= d->c;
 	s->iop.bio		= NULL;
 	s->iop.inode		= d->id;
@@ -894,7 +896,8 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
 	    !(bio->bi_opf & (REQ_META|REQ_PRIO)) &&
 	    s->iop.c->gc_stats.in_use < CUTOFF_CACHE_READA)
 		reada = min_t(sector_t, dc->readahead >> 9,
-			      get_capacity(bio->bi_disk) - bio_end_sector(bio));
+			      get_capacity(bio->bi_bdev->bd_disk) -
+			      bio_end_sector(bio));
 
 	s->insert_bio_sectors = min(sectors, bio_sectors(bio) + reada);
 
@@ -1073,7 +1076,7 @@ struct detached_dev_io_private {
 	unsigned long		start_time;
 	bio_end_io_t		*bi_end_io;
 	void			*bi_private;
-	struct block_device	*part;
+	struct block_device	*orig_bdev;
 };
 
 static void detached_dev_end_io(struct bio *bio)
@@ -1085,7 +1088,7 @@ static void detached_dev_end_io(struct bio *bio)
 	bio->bi_private = ddip->bi_private;
 
 	/* Count on the bcache device */
-	part_end_io_acct(ddip->part, bio, ddip->start_time);
+	bio_end_io_acct_remapped(bio, ddip->start_time, ddip->orig_bdev);
 
 	if (bio->bi_status) {
 		struct cached_dev *dc = container_of(ddip->d,
@@ -1098,7 +1101,8 @@ static void detached_dev_end_io(struct bio *bio)
 	bio->bi_end_io(bio);
 }
 
-static void detached_dev_do_request(struct bcache_device *d, struct bio *bio)
+static void detached_dev_do_request(struct bcache_device *d, struct bio *bio,
+		struct block_device *orig_bdev, unsigned long start_time)
 {
 	struct detached_dev_io_private *ddip;
 	struct cached_dev *dc = container_of(d, struct cached_dev, disk);
@@ -1111,7 +1115,8 @@ static void detached_dev_do_request(struct bcache_device *d, struct bio *bio)
 	ddip = kzalloc(sizeof(struct detached_dev_io_private), GFP_NOIO);
 	ddip->d = d;
 	/* Count on the bcache device */
-	ddip->start_time = part_start_io_acct(d->disk, &ddip->part, bio);
+	ddip->orig_bdev = orig_bdev;
+	ddip->start_time = start_time;
 	ddip->bi_end_io = bio->bi_end_io;
 	ddip->bi_private = bio->bi_private;
 	bio->bi_end_io = detached_dev_end_io;
@@ -1167,8 +1172,10 @@ static void quit_max_writeback_rate(struct cache_set *c,
 blk_qc_t cached_dev_submit_bio(struct bio *bio)
 {
 	struct search *s;
-	struct bcache_device *d = bio->bi_disk->private_data;
+	struct block_device *orig_bdev = bio->bi_bdev;
+	struct bcache_device *d = orig_bdev->bd_disk->private_data;
 	struct cached_dev *dc = container_of(d, struct cached_dev, disk);
+	unsigned long start_time;
 	int rw = bio_data_dir(bio);
 
 	if (unlikely((d->c && test_bit(CACHE_SET_IO_DISABLE, &d->c->flags)) ||
@@ -1193,11 +1200,13 @@ blk_qc_t cached_dev_submit_bio(struct bio *bio)
 		}
 	}
 
+	start_time = bio_start_io_acct(bio);
+
 	bio_set_dev(bio, dc->bdev);
 	bio->bi_iter.bi_sector += dc->sb.data_offset;
 
 	if (cached_dev_get(dc)) {
-		s = search_alloc(bio, d);
+		s = search_alloc(bio, d, orig_bdev, start_time);
 		trace_bcache_request_start(s->d, bio);
 
 		if (!bio->bi_iter.bi_size) {
@@ -1218,7 +1227,7 @@ blk_qc_t cached_dev_submit_bio(struct bio *bio)
 		}
 	} else
 		/* I/O request sent to backing device */
-		detached_dev_do_request(d, bio);
+		detached_dev_do_request(d, bio, orig_bdev, start_time);
 
 	return BLK_QC_T_NONE;
 }
@@ -1274,7 +1283,7 @@ blk_qc_t flash_dev_submit_bio(struct bio *bio)
 {
 	struct search *s;
 	struct closure *cl;
-	struct bcache_device *d = bio->bi_disk->private_data;
+	struct bcache_device *d = bio->bi_bdev->bd_disk->private_data;
 
 	if (unlikely(d->c && test_bit(CACHE_SET_IO_DISABLE, &d->c->flags))) {
 		bio->bi_status = BLK_STS_IOERR;
@@ -1282,7 +1291,7 @@ blk_qc_t flash_dev_submit_bio(struct bio *bio)
 		return BLK_QC_T_NONE;
 	}
 
-	s = search_alloc(bio, d);
+	s = search_alloc(bio, d, bio->bi_bdev, bio_start_io_acct(bio));
 	cl = &s->cl;
 	bio = &s->bio.bio;
 
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 2047a9cccdb5de..193fe7652329a3 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1939,7 +1939,7 @@ struct cache_set *bch_cache_set_alloc(struct cache_sb *sb)
 		goto err;
 
 	if (bioset_init(&c->bio_split, 4, offsetof(struct bbio, bio),
-			BIOSET_NEED_BVECS|BIOSET_NEED_RESCUER))
+			BIOSET_NEED_RESCUER))
 		goto err;
 
 	c->uuids = alloc_meta_bucket_pages(GFP_KERNEL, sb);
diff --git a/drivers/md/dm-bio-record.h b/drivers/md/dm-bio-record.h
index 2ea0360108e1d4..a3b71350eec84e 100644
--- a/drivers/md/dm-bio-record.h
+++ b/drivers/md/dm-bio-record.h
@@ -18,8 +18,7 @@
  */
 
 struct dm_bio_details {
-	struct gendisk *bi_disk;
-	u8 bi_partno;
+	struct block_device *bi_bdev;
 	int __bi_remaining;
 	unsigned long bi_flags;
 	struct bvec_iter bi_iter;
@@ -31,8 +30,7 @@ struct dm_bio_details {
 
 static inline void dm_bio_record(struct dm_bio_details *bd, struct bio *bio)
 {
-	bd->bi_disk = bio->bi_disk;
-	bd->bi_partno = bio->bi_partno;
+	bd->bi_bdev = bio->bi_bdev;
 	bd->bi_flags = bio->bi_flags;
 	bd->bi_iter = bio->bi_iter;
 	bd->__bi_remaining = atomic_read(&bio->__bi_remaining);
@@ -44,8 +42,7 @@ static inline void dm_bio_record(struct dm_bio_details *bd, struct bio *bio)
 
 static inline void dm_bio_restore(struct dm_bio_details *bd, struct bio *bio)
 {
-	bio->bi_disk = bd->bi_disk;
-	bio->bi_partno = bd->bi_partno;
+	bio->bi_bdev = bd->bi_bdev;
 	bio->bi_flags = bd->bi_flags;
 	bio->bi_iter = bd->bi_iter;
 	atomic_set(&bio->__bi_remaining, bd->__bi_remaining);
diff --git a/drivers/md/dm-cache-metadata.c b/drivers/md/dm-cache-metadata.c
index af6d4f898e4c1d..89a73204dbf47f 100644
--- a/drivers/md/dm-cache-metadata.c
+++ b/drivers/md/dm-cache-metadata.c
@@ -449,7 +449,7 @@ static int __check_incompat_features(struct cache_disk_superblock *disk_super,
 	/*
 	 * Check for read-only metadata to skip the following RDWR checks.
 	 */
-	if (get_disk_ro(cmd->bdev->bd_disk))
+	if (bdev_read_only(cmd->bdev))
 		return 0;
 
 	features = le32_to_cpu(disk_super->compat_ro_flags) & ~DM_CACHE_FEATURE_COMPAT_RO_SUPP;
diff --git a/drivers/md/dm-clone-target.c b/drivers/md/dm-clone-target.c
index bdb255edc20043..a90bdf9b2ca6bd 100644
--- a/drivers/md/dm-clone-target.c
+++ b/drivers/md/dm-clone-target.c
@@ -85,12 +85,6 @@ struct clone {
 
 	struct dm_clone_metadata *cmd;
 
-	/*
-	 * bio used to flush the destination device, before committing the
-	 * metadata.
-	 */
-	struct bio flush_bio;
-
 	/* Region hydration hash table */
 	struct hash_table_bucket *ht;
 
@@ -1155,11 +1149,7 @@ static int commit_metadata(struct clone *clone, bool *dest_dev_flushed)
 		goto out;
 	}
 
-	bio_reset(&clone->flush_bio);
-	bio_set_dev(&clone->flush_bio, clone->dest_dev->bdev);
-	clone->flush_bio.bi_opf = REQ_OP_WRITE | REQ_PREFLUSH;
-
-	r = submit_bio_wait(&clone->flush_bio);
+	r = blkdev_issue_flush(clone->dest_dev->bdev);
 	if (unlikely(r)) {
 		__metadata_operation_failed(clone, "flush destination device", r);
 		goto out;
@@ -1886,7 +1876,6 @@ static int clone_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	bio_list_init(&clone->deferred_flush_completions);
 	clone->hydration_offset = 0;
 	atomic_set(&clone->hydrations_in_flight, 0);
-	bio_init(&clone->flush_bio, NULL, 0);
 
 	clone->wq = alloc_workqueue("dm-" DM_MSG_PREFIX, WQ_MEM_RECLAIM, 0);
 	if (!clone->wq) {
@@ -1958,7 +1947,6 @@ static void clone_dtr(struct dm_target *ti)
 	struct clone *clone = ti->private;
 
 	mutex_destroy(&clone->commit_lock);
-	bio_uninit(&clone->flush_bio);
 
 	for (i = 0; i < clone->nr_ctr_args; i++)
 		kfree(clone->ctr_args[i]);
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index fa09bc4e4c54a1..b0a82f29a2e451 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -145,7 +145,7 @@ static void dispatch_bios(void *context, struct bio_list *bio_list)
 
 struct dm_raid1_bio_record {
 	struct mirror *m;
-	/* if details->bi_disk == NULL, details were not saved */
+	/* if details->bi_bdev == NULL, details were not saved */
 	struct dm_bio_details details;
 	region_t write_region;
 };
@@ -1190,7 +1190,7 @@ static int mirror_map(struct dm_target *ti, struct bio *bio)
 	struct dm_raid1_bio_record *bio_record =
 	  dm_per_bio_data(bio, sizeof(struct dm_raid1_bio_record));
 
-	bio_record->details.bi_disk = NULL;
+	bio_record->details.bi_bdev = NULL;
 
 	if (rw == WRITE) {
 		/* Save region for mirror_end_io() handler */
@@ -1257,7 +1257,7 @@ static int mirror_end_io(struct dm_target *ti, struct bio *bio,
 		goto out;
 
 	if (unlikely(*error)) {
-		if (!bio_record->details.bi_disk) {
+		if (!bio_record->details.bi_bdev) {
 			/*
 			 * There wasn't enough memory to record necessary
 			 * information for a retry or there was no other
@@ -1282,7 +1282,7 @@ static int mirror_end_io(struct dm_target *ti, struct bio *bio,
 			bd = &bio_record->details;
 
 			dm_bio_restore(bd, bio);
-			bio_record->details.bi_disk = NULL;
+			bio_record->details.bi_bdev = NULL;
 			bio->bi_status = 0;
 
 			queue_bio(ms, bio, rw);
@@ -1292,7 +1292,7 @@ static int mirror_end_io(struct dm_target *ti, struct bio *bio,
 	}
 
 out:
-	bio_record->details.bi_disk = NULL;
+	bio_record->details.bi_bdev = NULL;
 
 	return DM_ENDIO_DONE;
 }
diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
index 6ebb2127f3e2e0..e75b20480e460e 100644
--- a/drivers/md/dm-thin-metadata.c
+++ b/drivers/md/dm-thin-metadata.c
@@ -636,7 +636,7 @@ static int __check_incompat_features(struct thin_disk_superblock *disk_super,
 	/*
 	 * Check for read-only metadata to skip the following RDWR checks.
 	 */
-	if (get_disk_ro(pmd->bdev->bd_disk))
+	if (bdev_read_only(pmd->bdev))
 		return 0;
 
 	features = le32_to_cpu(disk_super->compat_ro_flags) & ~THIN_FEATURE_COMPAT_RO_SUPP;
diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c
index b298fefb022eb9..039d17b2893849 100644
--- a/drivers/md/dm-zoned-metadata.c
+++ b/drivers/md/dm-zoned-metadata.c
@@ -819,7 +819,7 @@ static int dmz_write_sb(struct dmz_metadata *zmd, unsigned int set)
 	ret = dmz_rdwr_block(dev, REQ_OP_WRITE, zmd->sb[set].block,
 			     mblk->page);
 	if (ret == 0)
-		ret = blkdev_issue_flush(dev->bdev, GFP_NOIO);
+		ret = blkdev_issue_flush(dev->bdev);
 
 	return ret;
 }
@@ -862,7 +862,7 @@ static int dmz_write_dirty_mblocks(struct dmz_metadata *zmd,
 
 	/* Flush drive cache (this will also sync data) */
 	if (ret == 0)
-		ret = blkdev_issue_flush(dev->bdev, GFP_NOIO);
+		ret = blkdev_issue_flush(dev->bdev);
 
 	return ret;
 }
@@ -933,7 +933,7 @@ int dmz_flush_metadata(struct dmz_metadata *zmd)
 
 	/* If there are no dirty metadata blocks, just flush the device cache */
 	if (list_empty(&write_list)) {
-		ret = blkdev_issue_flush(dev->bdev, GFP_NOIO);
+		ret = blkdev_issue_flush(dev->bdev);
 		goto err;
 	}
 
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 7bac564f3faa6e..479ec5bea09e2e 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -977,16 +977,17 @@ static void clone_endio(struct bio *bio)
 	struct mapped_device *md = tio->io->md;
 	dm_endio_fn endio = tio->ti->type->end_io;
 	struct bio *orig_bio = io->orig_bio;
+	struct request_queue *q = bio->bi_bdev->bd_disk->queue;
 
 	if (unlikely(error == BLK_STS_TARGET)) {
 		if (bio_op(bio) == REQ_OP_DISCARD &&
-		    !bio->bi_disk->queue->limits.max_discard_sectors)
+		    !q->limits.max_discard_sectors)
 			disable_discard(md);
 		else if (bio_op(bio) == REQ_OP_WRITE_SAME &&
-			 !bio->bi_disk->queue->limits.max_write_same_sectors)
+			 !q->limits.max_write_same_sectors)
 			disable_write_same(md);
 		else if (bio_op(bio) == REQ_OP_WRITE_ZEROES &&
-			 !bio->bi_disk->queue->limits.max_write_zeroes_sectors)
+			 !q->limits.max_write_zeroes_sectors)
 			disable_write_zeroes(md);
 	}
 
@@ -996,7 +997,7 @@ static void clone_endio(struct bio *bio)
 	 */
 	if (bio_op(orig_bio) == REQ_OP_ZONE_APPEND) {
 		sector_t written_sector = bio->bi_iter.bi_sector;
-		struct request_queue *q = orig_bio->bi_disk->queue;
+		struct request_queue *q = orig_bio->bi_bdev->bd_disk->queue;
 		u64 mask = (u64)blk_queue_zone_sectors(q) - 1;
 
 		orig_bio->bi_iter.bi_sector += written_sector & mask;
@@ -1422,8 +1423,7 @@ static int __send_empty_flush(struct clone_info *ci)
 	 */
 	bio_init(&flush_bio, NULL, 0);
 	flush_bio.bi_opf = REQ_OP_WRITE | REQ_PREFLUSH | REQ_SYNC;
-	flush_bio.bi_disk = ci->io->md->disk;
-	bio_associate_blkg(&flush_bio);
+	bio_set_dev(&flush_bio, ci->io->md->disk->part0);
 
 	ci->bio = &flush_bio;
 	ci->sector_count = 0;
@@ -1626,7 +1626,7 @@ static blk_qc_t __split_and_process_bio(struct mapped_device *md,
 
 static blk_qc_t dm_submit_bio(struct bio *bio)
 {
-	struct mapped_device *md = bio->bi_disk->private_data;
+	struct mapped_device *md = bio->bi_bdev->bd_disk->private_data;
 	blk_qc_t ret = BLK_QC_T_NONE;
 	int srcu_idx;
 	struct dm_table *map;
diff --git a/drivers/md/md-linear.c b/drivers/md/md-linear.c
index 68cac7d1927823..63ed8329a98d01 100644
--- a/drivers/md/md-linear.c
+++ b/drivers/md/md-linear.c
@@ -252,7 +252,7 @@ static bool linear_make_request(struct mddev *mddev, struct bio *bio)
 		start_sector + data_offset;
 
 	if (unlikely((bio_op(bio) == REQ_OP_DISCARD) &&
-		     !blk_queue_discard(bio->bi_disk->queue))) {
+		     !blk_queue_discard(bio->bi_bdev->bd_disk->queue))) {
 		/* Just ignore it */
 		bio_endio(bio);
 	} else {
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 04384452a7abd4..21da0c48f6c21e 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -340,24 +340,6 @@ static int start_readonly;
  */
 static bool create_on_open = true;
 
-struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs,
-			    struct mddev *mddev)
-{
-	if (!mddev || !bioset_initialized(&mddev->bio_set))
-		return bio_alloc(gfp_mask, nr_iovecs);
-
-	return bio_alloc_bioset(gfp_mask, nr_iovecs, &mddev->bio_set);
-}
-EXPORT_SYMBOL_GPL(bio_alloc_mddev);
-
-static struct bio *md_bio_alloc_sync(struct mddev *mddev)
-{
-	if (!mddev || !bioset_initialized(&mddev->sync_set))
-		return bio_alloc(GFP_NOIO, 1);
-
-	return bio_alloc_bioset(GFP_NOIO, 1, &mddev->sync_set);
-}
-
 /*
  * We have a system wide 'event count' that is incremented
  * on any 'interesting' event, and readers of /proc/mdstat
@@ -463,8 +445,8 @@ struct md_io {
 	struct mddev *mddev;
 	bio_end_io_t *orig_bi_end_io;
 	void *orig_bi_private;
+	struct block_device *orig_bi_bdev;
 	unsigned long start_time;
-	struct block_device *part;
 };
 
 static void md_end_io(struct bio *bio)
@@ -472,7 +454,7 @@ static void md_end_io(struct bio *bio)
 	struct md_io *md_io = bio->bi_private;
 	struct mddev *mddev = md_io->mddev;
 
-	part_end_io_acct(md_io->part, bio, md_io->start_time);
+	bio_end_io_acct_remapped(bio, md_io->start_time, md_io->orig_bi_bdev);
 
 	bio->bi_end_io = md_io->orig_bi_end_io;
 	bio->bi_private = md_io->orig_bi_private;
@@ -486,7 +468,7 @@ static void md_end_io(struct bio *bio)
 static blk_qc_t md_submit_bio(struct bio *bio)
 {
 	const int rw = bio_data_dir(bio);
-	struct mddev *mddev = bio->bi_disk->private_data;
+	struct mddev *mddev = bio->bi_bdev->bd_disk->private_data;
 
 	if (mddev == NULL || mddev->pers == NULL) {
 		bio_io_error(bio);
@@ -514,12 +496,12 @@ static blk_qc_t md_submit_bio(struct bio *bio)
 		md_io->mddev = mddev;
 		md_io->orig_bi_end_io = bio->bi_end_io;
 		md_io->orig_bi_private = bio->bi_private;
+		md_io->orig_bi_bdev = bio->bi_bdev;
 
 		bio->bi_end_io = md_end_io;
 		bio->bi_private = md_io;
 
-		md_io->start_time = part_start_io_acct(mddev->gendisk,
-						       &md_io->part, bio);
+		md_io->start_time = bio_start_io_acct(bio);
 	}
 
 	/* bio could be mergeable after passing to underlayer */
@@ -613,7 +595,7 @@ static void submit_flushes(struct work_struct *ws)
 			atomic_inc(&rdev->nr_pending);
 			atomic_inc(&rdev->nr_pending);
 			rcu_read_unlock();
-			bi = bio_alloc_mddev(GFP_NOIO, 0, mddev);
+			bi = bio_alloc_bioset(GFP_NOIO, 0, &mddev->bio_set);
 			bi->bi_end_io = md_end_flush;
 			bi->bi_private = rdev;
 			bio_set_dev(bi, rdev->bdev);
@@ -999,7 +981,7 @@ void md_super_write(struct mddev *mddev, struct md_rdev *rdev,
 	if (test_bit(Faulty, &rdev->flags))
 		return;
 
-	bio = md_bio_alloc_sync(mddev);
+	bio = bio_alloc_bioset(GFP_NOIO, 1, &mddev->sync_set);
 
 	atomic_inc(&rdev->nr_pending);
 
@@ -1031,29 +1013,29 @@ int md_super_wait(struct mddev *mddev)
 int sync_page_io(struct md_rdev *rdev, sector_t sector, int size,
 		 struct page *page, int op, int op_flags, bool metadata_op)
 {
-	struct bio *bio = md_bio_alloc_sync(rdev->mddev);
-	int ret;
+	struct bio bio;
+	struct bio_vec bvec;
+
+	bio_init(&bio, &bvec, 1);
 
 	if (metadata_op && rdev->meta_bdev)
-		bio_set_dev(bio, rdev->meta_bdev);
+		bio_set_dev(&bio, rdev->meta_bdev);
 	else
-		bio_set_dev(bio, rdev->bdev);
-	bio_set_op_attrs(bio, op, op_flags);
+		bio_set_dev(&bio, rdev->bdev);
+	bio.bi_opf = op | op_flags;
 	if (metadata_op)
-		bio->bi_iter.bi_sector = sector + rdev->sb_start;
+		bio.bi_iter.bi_sector = sector + rdev->sb_start;
 	else if (rdev->mddev->reshape_position != MaxSector &&
 		 (rdev->mddev->reshape_backwards ==
 		  (sector >= rdev->mddev->reshape_position)))
-		bio->bi_iter.bi_sector = sector + rdev->new_data_offset;
+		bio.bi_iter.bi_sector = sector + rdev->new_data_offset;
 	else
-		bio->bi_iter.bi_sector = sector + rdev->data_offset;
-	bio_add_page(bio, page, size, 0);
+		bio.bi_iter.bi_sector = sector + rdev->data_offset;
+	bio_add_page(&bio, page, size, 0);
 
-	submit_bio_wait(bio);
+	submit_bio_wait(&bio);
 
-	ret = !bio->bi_status;
-	bio_put(bio);
-	return ret;
+	return !bio.bi_status;
 }
 EXPORT_SYMBOL_GPL(sync_page_io);
 
@@ -2417,6 +2399,12 @@ int md_integrity_add_rdev(struct md_rdev *rdev, struct mddev *mddev)
 }
 EXPORT_SYMBOL(md_integrity_add_rdev);
 
+static bool rdev_read_only(struct md_rdev *rdev)
+{
+	return bdev_read_only(rdev->bdev) ||
+		(rdev->meta_bdev && bdev_read_only(rdev->meta_bdev));
+}
+
 static int bind_rdev_to_array(struct md_rdev *rdev, struct mddev *mddev)
 {
 	char b[BDEVNAME_SIZE];
@@ -2426,8 +2414,7 @@ static int bind_rdev_to_array(struct md_rdev *rdev, struct mddev *mddev)
 	if (find_rdev(mddev, rdev->bdev->bd_dev))
 		return -EEXIST;
 
-	if ((bdev_read_only(rdev->bdev) || bdev_read_only(rdev->meta_bdev)) &&
-	    mddev->pers)
+	if (rdev_read_only(rdev) && mddev->pers)
 		return -EROFS;
 
 	/* make sure rdev->sectors exceeds mddev->dev_sectors */
@@ -5861,9 +5848,7 @@ int md_run(struct mddev *mddev)
 			continue;
 		sync_blockdev(rdev->bdev);
 		invalidate_bdev(rdev->bdev);
-		if (mddev->ro != 1 &&
-		    (bdev_read_only(rdev->bdev) ||
-		     bdev_read_only(rdev->meta_bdev))) {
+		if (mddev->ro != 1 && rdev_read_only(rdev)) {
 			mddev->ro = 1;
 			if (mddev->gendisk)
 				set_disk_ro(mddev->gendisk, 1);
@@ -6158,7 +6143,7 @@ static int restart_array(struct mddev *mddev)
 		if (test_bit(Journal, &rdev->flags) &&
 		    !test_bit(Faulty, &rdev->flags))
 			has_journal = true;
-		if (bdev_read_only(rdev->bdev))
+		if (rdev_read_only(rdev))
 			has_readonly = true;
 	}
 	rcu_read_unlock();
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 34070ab30a8ae2..bcbba1b5ec4a71 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -556,7 +556,7 @@ static inline void md_sync_acct(struct block_device *bdev, unsigned long nr_sect
 
 static inline void md_sync_acct_bio(struct bio *bio, unsigned long nr_sectors)
 {
-	atomic_add(nr_sectors, &bio->bi_disk->sync_io);
+	md_sync_acct(bio->bi_bdev, nr_sectors);
 }
 
 struct md_personality
@@ -742,8 +742,6 @@ extern void md_rdev_clear(struct md_rdev *rdev);
 extern void md_handle_request(struct mddev *mddev, struct bio *bio);
 extern void mddev_suspend(struct mddev *mddev);
 extern void mddev_resume(struct mddev *mddev);
-extern struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs,
-				   struct mddev *mddev);
 
 extern void md_reload_sb(struct mddev *mddev, int raid_disk);
 extern void md_update_sb(struct mddev *mddev, int force);
@@ -793,14 +791,14 @@ static inline void mddev_clear_unsupported_flags(struct mddev *mddev,
 static inline void mddev_check_writesame(struct mddev *mddev, struct bio *bio)
 {
 	if (bio_op(bio) == REQ_OP_WRITE_SAME &&
-	    !bio->bi_disk->queue->limits.max_write_same_sectors)
+	    !bio->bi_bdev->bd_disk->queue->limits.max_write_same_sectors)
 		mddev->queue->limits.max_write_same_sectors = 0;
 }
 
 static inline void mddev_check_write_zeroes(struct mddev *mddev, struct bio *bio)
 {
 	if (bio_op(bio) == REQ_OP_WRITE_ZEROES &&
-	    !bio->bi_disk->queue->limits.max_write_zeroes_sectors)
+	    !bio->bi_bdev->bd_disk->queue->limits.max_write_zeroes_sectors)
 		mddev->queue->limits.max_write_zeroes_sectors = 0;
 }
 
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index c0347997f6ff73..d2378765dc154f 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -794,13 +794,13 @@ static void flush_bio_list(struct r1conf *conf, struct bio *bio)
 
 	while (bio) { /* submit pending writes */
 		struct bio *next = bio->bi_next;
-		struct md_rdev *rdev = (void *)bio->bi_disk;
+		struct md_rdev *rdev = (void *)bio->bi_bdev;
 		bio->bi_next = NULL;
 		bio_set_dev(bio, rdev->bdev);
 		if (test_bit(Faulty, &rdev->flags)) {
 			bio_io_error(bio);
 		} else if (unlikely((bio_op(bio) == REQ_OP_DISCARD) &&
-				    !blk_queue_discard(bio->bi_disk->queue)))
+				    !blk_queue_discard(bio->bi_bdev->bd_disk->queue)))
 			/* Just ignore it */
 			bio_endio(bio);
 		else
@@ -1104,7 +1104,7 @@ static void alloc_behind_master_bio(struct r1bio *r1_bio,
 	int i = 0;
 	struct bio *behind_bio = NULL;
 
-	behind_bio = bio_alloc_mddev(GFP_NOIO, vcnt, r1_bio->mddev);
+	behind_bio = bio_alloc_bioset(GFP_NOIO, vcnt, &r1_bio->mddev->bio_set);
 	if (!behind_bio)
 		return;
 
@@ -1520,7 +1520,7 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio,
 			trace_block_bio_remap(mbio, disk_devt(mddev->gendisk),
 					      r1_bio->sector);
 		/* flush_pending_writes() needs access to the rdev so...*/
-		mbio->bi_disk = (void *)conf->mirrors[i].rdev;
+		mbio->bi_bdev = (void *)conf->mirrors[i].rdev;
 
 		cb = blk_check_plugged(raid1_unplug, mddev, sizeof(*plug));
 		if (cb)
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index c5d88ef6a45c75..a9ae7d113492c9 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -882,13 +882,13 @@ static void flush_pending_writes(struct r10conf *conf)
 
 		while (bio) { /* submit pending writes */
 			struct bio *next = bio->bi_next;
-			struct md_rdev *rdev = (void*)bio->bi_disk;
+			struct md_rdev *rdev = (void*)bio->bi_bdev;
 			bio->bi_next = NULL;
 			bio_set_dev(bio, rdev->bdev);
 			if (test_bit(Faulty, &rdev->flags)) {
 				bio_io_error(bio);
 			} else if (unlikely((bio_op(bio) ==  REQ_OP_DISCARD) &&
-					    !blk_queue_discard(bio->bi_disk->queue)))
+					    !blk_queue_discard(bio->bi_bdev->bd_disk->queue)))
 				/* Just ignore it */
 				bio_endio(bio);
 			else
@@ -1075,13 +1075,13 @@ static void raid10_unplug(struct blk_plug_cb *cb, bool from_schedule)
 
 	while (bio) { /* submit pending writes */
 		struct bio *next = bio->bi_next;
-		struct md_rdev *rdev = (void*)bio->bi_disk;
+		struct md_rdev *rdev = (void*)bio->bi_bdev;
 		bio->bi_next = NULL;
 		bio_set_dev(bio, rdev->bdev);
 		if (test_bit(Faulty, &rdev->flags)) {
 			bio_io_error(bio);
 		} else if (unlikely((bio_op(bio) ==  REQ_OP_DISCARD) &&
-				    !blk_queue_discard(bio->bi_disk->queue)))
+				    !blk_queue_discard(bio->bi_bdev->bd_disk->queue)))
 			/* Just ignore it */
 			bio_endio(bio);
 		else
@@ -1253,7 +1253,7 @@ static void raid10_write_one_disk(struct mddev *mddev, struct r10bio *r10_bio,
 		trace_block_bio_remap(mbio, disk_devt(conf->mddev->gendisk),
 				      r10_bio->sector);
 	/* flush_pending_writes() needs access to the rdev so...*/
-	mbio->bi_disk = (void *)rdev;
+	mbio->bi_bdev = (void *)rdev;
 
 	atomic_inc(&r10_bio->remaining);
 
@@ -3003,7 +3003,7 @@ static sector_t raid10_sync_request(struct mddev *mddev, sector_t sector_nr,
 
 	/* Again, very different code for resync and recovery.
 	 * Both must result in an r10bio with a list of bios that
-	 * have bi_end_io, bi_sector, bi_disk set,
+	 * have bi_end_io, bi_sector, bi_bdev set,
 	 * and bi_private set to the r10bio.
 	 * For recovery, we may actually create several r10bios
 	 * with 2 bios in each, that correspond to the bios in the main one.
@@ -4531,7 +4531,7 @@ read_more:
 		return sectors_done;
 	}
 
-	read_bio = bio_alloc_mddev(GFP_KERNEL, RESYNC_PAGES, mddev);
+	read_bio = bio_alloc_bioset(GFP_KERNEL, RESYNC_PAGES, &mddev->bio_set);
 
 	bio_set_dev(read_bio, rdev->bdev);
 	read_bio->bi_iter.bi_sector = (r10_bio->devs[r10_bio->read_slot].addr
@@ -4539,10 +4539,6 @@ read_more:
 	read_bio->bi_private = r10_bio;
 	read_bio->bi_end_io = end_reshape_read;
 	bio_set_op_attrs(read_bio, REQ_OP_READ, 0);
-	read_bio->bi_flags &= (~0UL << BIO_RESET_BITS);
-	read_bio->bi_status = 0;
-	read_bio->bi_vcnt = 0;
-	read_bio->bi_iter.bi_size = 0;
 	r10_bio->master_bio = read_bio;
 	r10_bio->read_slot = r10_bio->devs[r10_bio->read_slot].devnum;
 
diff --git a/drivers/md/raid5-ppl.c b/drivers/md/raid5-ppl.c
index d0f540296fe91e..e8c118e05dfd46 100644
--- a/drivers/md/raid5-ppl.c
+++ b/drivers/md/raid5-ppl.c
@@ -1037,7 +1037,7 @@ static int ppl_recover(struct ppl_log *log, struct ppl_header *pplhdr,
 	}
 
 	/* flush the disk cache after recovery if necessary */
-	ret = blkdev_issue_flush(rdev->bdev, GFP_KERNEL);
+	ret = blkdev_issue_flush(rdev->bdev);
 out:
 	__free_page(page);
 	return ret;
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 3a90cc0e43ca8e..a348b2adf2a9f9 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -5310,7 +5310,7 @@ static int in_chunk_boundary(struct mddev *mddev, struct bio *bio)
 	unsigned int chunk_sectors;
 	unsigned int bio_sectors = bio_sectors(bio);
 
-	WARN_ON_ONCE(bio->bi_partno);
+	WARN_ON_ONCE(bio->bi_bdev->bd_partno);
 
 	chunk_sectors = min(conf->chunk_sectors, conf->prev_chunk_sectors);
 	return  chunk_sectors >=
@@ -5393,90 +5393,72 @@ static void raid5_align_endio(struct bio *bi)
 static int raid5_read_one_chunk(struct mddev *mddev, struct bio *raid_bio)
 {
 	struct r5conf *conf = mddev->private;
-	int dd_idx;
-	struct bio* align_bi;
+	struct bio *align_bio;
 	struct md_rdev *rdev;
-	sector_t end_sector;
+	sector_t sector, end_sector, first_bad;
+	int bad_sectors, dd_idx;
 
 	if (!in_chunk_boundary(mddev, raid_bio)) {
 		pr_debug("%s: non aligned\n", __func__);
 		return 0;
 	}
-	/*
-	 * use bio_clone_fast to make a copy of the bio
-	 */
-	align_bi = bio_clone_fast(raid_bio, GFP_NOIO, &mddev->bio_set);
-	if (!align_bi)
-		return 0;
-	/*
-	 *   set bi_end_io to a new function, and set bi_private to the
-	 *     original bio.
-	 */
-	align_bi->bi_end_io  = raid5_align_endio;
-	align_bi->bi_private = raid_bio;
-	/*
-	 *	compute position
-	 */
-	align_bi->bi_iter.bi_sector =
-		raid5_compute_sector(conf, raid_bio->bi_iter.bi_sector,
-				     0, &dd_idx, NULL);
 
-	end_sector = bio_end_sector(align_bi);
+	sector = raid5_compute_sector(conf, raid_bio->bi_iter.bi_sector, 0,
+				      &dd_idx, NULL);
+	end_sector = bio_end_sector(raid_bio);
+
 	rcu_read_lock();
+	if (r5c_big_stripe_cached(conf, sector))
+		goto out_rcu_unlock;
+
 	rdev = rcu_dereference(conf->disks[dd_idx].replacement);
 	if (!rdev || test_bit(Faulty, &rdev->flags) ||
 	    rdev->recovery_offset < end_sector) {
 		rdev = rcu_dereference(conf->disks[dd_idx].rdev);
-		if (rdev &&
-		    (test_bit(Faulty, &rdev->flags) ||
+		if (!rdev)
+			goto out_rcu_unlock;
+		if (test_bit(Faulty, &rdev->flags) ||
 		    !(test_bit(In_sync, &rdev->flags) ||
-		      rdev->recovery_offset >= end_sector)))
-			rdev = NULL;
+		      rdev->recovery_offset >= end_sector))
+			goto out_rcu_unlock;
 	}
 
-	if (r5c_big_stripe_cached(conf, align_bi->bi_iter.bi_sector)) {
-		rcu_read_unlock();
-		bio_put(align_bi);
+	atomic_inc(&rdev->nr_pending);
+	rcu_read_unlock();
+
+	align_bio = bio_clone_fast(raid_bio, GFP_NOIO, &mddev->bio_set);
+	bio_set_dev(align_bio, rdev->bdev);
+	align_bio->bi_end_io = raid5_align_endio;
+	align_bio->bi_private = raid_bio;
+	align_bio->bi_iter.bi_sector = sector;
+
+	raid_bio->bi_next = (void *)rdev;
+
+	if (is_badblock(rdev, sector, bio_sectors(align_bio), &first_bad,
+			&bad_sectors)) {
+		bio_put(align_bio);
+		rdev_dec_pending(rdev, mddev);
 		return 0;
 	}
 
-	if (rdev) {
-		sector_t first_bad;
-		int bad_sectors;
-
-		atomic_inc(&rdev->nr_pending);
-		rcu_read_unlock();
-		raid_bio->bi_next = (void*)rdev;
-		bio_set_dev(align_bi, rdev->bdev);
-
-		if (is_badblock(rdev, align_bi->bi_iter.bi_sector,
-				bio_sectors(align_bi),
-				&first_bad, &bad_sectors)) {
-			bio_put(align_bi);
-			rdev_dec_pending(rdev, mddev);
-			return 0;
-		}
+	/* No reshape active, so we can trust rdev->data_offset */
+	align_bio->bi_iter.bi_sector += rdev->data_offset;
 
-		/* No reshape active, so we can trust rdev->data_offset */
-		align_bi->bi_iter.bi_sector += rdev->data_offset;
+	spin_lock_irq(&conf->device_lock);
+	wait_event_lock_irq(conf->wait_for_quiescent, conf->quiesce == 0,
+			    conf->device_lock);
+	atomic_inc(&conf->active_aligned_reads);
+	spin_unlock_irq(&conf->device_lock);
 
-		spin_lock_irq(&conf->device_lock);
-		wait_event_lock_irq(conf->wait_for_quiescent,
-				    conf->quiesce == 0,
-				    conf->device_lock);
-		atomic_inc(&conf->active_aligned_reads);
-		spin_unlock_irq(&conf->device_lock);
+	if (mddev->gendisk)
+		trace_block_bio_remap(align_bio, disk_devt(mddev->gendisk),
+				      raid_bio->bi_iter.bi_sector);
+	submit_bio_noacct(align_bio);
+	return 1;
 
-		if (mddev->gendisk)
-			trace_block_bio_remap(align_bi, disk_devt(mddev->gendisk),
-					      raid_bio->bi_iter.bi_sector);
-		submit_bio_noacct(align_bi);
-		return 1;
-	} else {
-		rcu_read_unlock();
-		bio_put(align_bi);
-		return 0;
-	}
+out_rcu_unlock:
+	rcu_read_unlock();
+	return 0;
 }
 
 static struct bio *chunk_aligned_read(struct mddev *mddev, struct bio *raid_bio)
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index 42e27a2982180e..a1d6b68320ae48 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -253,7 +253,7 @@ static ssize_t power_ro_lock_store(struct device *dev,
 		goto out_put;
 	}
 	req_to_mmc_queue_req(req)->drv_op = MMC_DRV_OP_BOOT_WP;
-	blk_execute_rq(mq->queue, NULL, req, 0);
+	blk_execute_rq(NULL, req, 0);
 	ret = req_to_mmc_queue_req(req)->drv_op_result;
 	blk_put_request(req);
 
@@ -629,7 +629,7 @@ static int mmc_blk_ioctl_cmd(struct mmc_blk_data *md,
 		rpmb ? MMC_DRV_OP_IOCTL_RPMB : MMC_DRV_OP_IOCTL;
 	req_to_mmc_queue_req(req)->drv_op_data = idatas;
 	req_to_mmc_queue_req(req)->ioc_count = 1;
-	blk_execute_rq(mq->queue, NULL, req, 0);
+	blk_execute_rq(NULL, req, 0);
 	ioc_err = req_to_mmc_queue_req(req)->drv_op_result;
 	err = mmc_blk_ioctl_copy_to_user(ic_ptr, idata);
 	blk_put_request(req);
@@ -698,7 +698,7 @@ static int mmc_blk_ioctl_multi_cmd(struct mmc_blk_data *md,
 		rpmb ? MMC_DRV_OP_IOCTL_RPMB : MMC_DRV_OP_IOCTL;
 	req_to_mmc_queue_req(req)->drv_op_data = idata;
 	req_to_mmc_queue_req(req)->ioc_count = num_of_cmds;
-	blk_execute_rq(mq->queue, NULL, req, 0);
+	blk_execute_rq(NULL, req, 0);
 	ioc_err = req_to_mmc_queue_req(req)->drv_op_result;
 
 	/* copy to user if data and response */
@@ -2722,7 +2722,7 @@ static int mmc_dbg_card_status_get(void *data, u64 *val)
 	if (IS_ERR(req))
 		return PTR_ERR(req);
 	req_to_mmc_queue_req(req)->drv_op = MMC_DRV_OP_GET_CARD_STATUS;
-	blk_execute_rq(mq->queue, NULL, req, 0);
+	blk_execute_rq(NULL, req, 0);
 	ret = req_to_mmc_queue_req(req)->drv_op_result;
 	if (ret >= 0) {
 		*val = ret;
@@ -2761,7 +2761,7 @@ static int mmc_ext_csd_open(struct inode *inode, struct file *filp)
 	}
 	req_to_mmc_queue_req(req)->drv_op = MMC_DRV_OP_GET_EXT_CSD;
 	req_to_mmc_queue_req(req)->drv_op_data = &ext_csd;
-	blk_execute_rq(mq->queue, NULL, req, 0);
+	blk_execute_rq(NULL, req, 0);
 	err = req_to_mmc_queue_req(req)->drv_op_result;
 	blk_put_request(req);
 	if (err) {
diff --git a/drivers/nvdimm/blk.c b/drivers/nvdimm/blk.c
index 22e5617b2cea14..e03a1f38d75040 100644
--- a/drivers/nvdimm/blk.c
+++ b/drivers/nvdimm/blk.c
@@ -165,7 +165,7 @@ static int nsblk_do_bvec(struct nd_namespace_blk *nsblk,
 static blk_qc_t nd_blk_submit_bio(struct bio *bio)
 {
 	struct bio_integrity_payload *bip;
-	struct nd_namespace_blk *nsblk = bio->bi_disk->private_data;
+	struct nd_namespace_blk *nsblk = bio->bi_bdev->bd_disk->private_data;
 	struct bvec_iter iter;
 	unsigned long start;
 	struct bio_vec bvec;
@@ -177,7 +177,7 @@ static blk_qc_t nd_blk_submit_bio(struct bio *bio)
 
 	bip = bio_integrity(bio);
 	rw = bio_data_dir(bio);
-	do_acct = blk_queue_io_stat(bio->bi_disk->queue);
+	do_acct = blk_queue_io_stat(bio->bi_bdev->bd_disk->queue);
 	if (do_acct)
 		start = bio_start_io_acct(bio);
 	bio_for_each_segment(bvec, bio, iter) {
diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c
index 12ff6f8784ac11..41aa1f01fc0752 100644
--- a/drivers/nvdimm/btt.c
+++ b/drivers/nvdimm/btt.c
@@ -1442,7 +1442,7 @@ static int btt_do_bvec(struct btt *btt, struct bio_integrity_payload *bip,
 static blk_qc_t btt_submit_bio(struct bio *bio)
 {
 	struct bio_integrity_payload *bip = bio_integrity(bio);
-	struct btt *btt = bio->bi_disk->private_data;
+	struct btt *btt = bio->bi_bdev->bd_disk->private_data;
 	struct bvec_iter iter;
 	unsigned long start;
 	struct bio_vec bvec;
@@ -1452,7 +1452,7 @@ static blk_qc_t btt_submit_bio(struct bio *bio)
 	if (!bio_integrity_prep(bio))
 		return BLK_QC_T_NONE;
 
-	do_acct = blk_queue_io_stat(bio->bi_disk->queue);
+	do_acct = blk_queue_io_stat(bio->bi_bdev->bd_disk->queue);
 	if (do_acct)
 		start = bio_start_io_acct(bio);
 	bio_for_each_segment(bvec, bio, iter) {
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index f33bdae626baf1..281fedb4dc4dc9 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -196,13 +196,13 @@ static blk_qc_t pmem_submit_bio(struct bio *bio)
 	unsigned long start;
 	struct bio_vec bvec;
 	struct bvec_iter iter;
-	struct pmem_device *pmem = bio->bi_disk->private_data;
+	struct pmem_device *pmem = bio->bi_bdev->bd_disk->private_data;
 	struct nd_region *nd_region = to_region(pmem);
 
 	if (bio->bi_opf & REQ_PREFLUSH)
 		ret = nvdimm_flush(nd_region, bio);
 
-	do_acct = blk_queue_io_stat(bio->bi_disk->queue);
+	do_acct = blk_queue_io_stat(bio->bi_bdev->bd_disk->queue);
 	if (do_acct)
 		start = bio_start_io_acct(bio);
 	bio_for_each_segment(bvec, bio, iter) {
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index f13eb4ded95fad..89cacff897a8d8 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -925,7 +925,7 @@ static void nvme_execute_rq_polled(struct request_queue *q,
 
 	rq->cmd_flags |= REQ_HIPRI;
 	rq->end_io_data = &wait;
-	blk_execute_rq_nowait(q, bd_disk, rq, at_head, nvme_end_sync_rq);
+	blk_execute_rq_nowait(bd_disk, rq, at_head, nvme_end_sync_rq);
 
 	while (!completion_done(&wait)) {
 		blk_poll(q, request_to_qc_t(rq->mq_hctx, rq), true);
@@ -964,7 +964,7 @@ int __nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,
 	if (poll)
 		nvme_execute_rq_polled(req->q, NULL, req, at_head);
 	else
-		blk_execute_rq(req->q, NULL, req, at_head);
+		blk_execute_rq(NULL, req, at_head);
 	if (result)
 		*result = nvme_req(req)->result;
 	if (nvme_req(req)->flags & NVME_REQ_CANCELLED)
@@ -1101,7 +1101,7 @@ void nvme_execute_passthru_rq(struct request *rq)
 	u32 effects;
 
 	effects = nvme_passthru_start(ctrl, ns, cmd->common.opcode);
-	blk_execute_rq(rq->q, disk, rq, 0);
+	blk_execute_rq(disk, rq, 0);
 	nvme_passthru_end(ctrl, effects);
 }
 EXPORT_SYMBOL_NS_GPL(nvme_execute_passthru_rq, NVME_TARGET_PASSTHRU);
@@ -1113,7 +1113,7 @@ static int nvme_submit_user_cmd(struct request_queue *q,
 {
 	bool write = nvme_is_write(cmd);
 	struct nvme_ns *ns = q->queuedata;
-	struct gendisk *disk = ns ? ns->disk : NULL;
+	struct block_device *bdev = ns ? ns->disk->part0 : NULL;
 	struct request *req;
 	struct bio *bio = NULL;
 	void *meta = NULL;
@@ -1133,8 +1133,9 @@ static int nvme_submit_user_cmd(struct request_queue *q,
 		if (ret)
 			goto out;
 		bio = req->bio;
-		bio->bi_disk = disk;
-		if (disk && meta_buffer && meta_len) {
+		if (bdev)
+			bio_set_dev(bio, bdev);
+		if (bdev && meta_buffer && meta_len) {
 			meta = nvme_add_user_metadata(bio, meta_buffer, meta_len,
 					meta_seed, write);
 			if (IS_ERR(meta)) {
@@ -1202,7 +1203,7 @@ static int nvme_keep_alive(struct nvme_ctrl *ctrl)
 	rq->timeout = ctrl->kato * HZ;
 	rq->end_io_data = ctrl;
 
-	blk_execute_rq_nowait(rq->q, NULL, rq, 0, nvme_keep_alive_end_io);
+	blk_execute_rq_nowait(NULL, rq, 0, nvme_keep_alive_end_io);
 
 	return 0;
 }
@@ -2125,9 +2126,8 @@ static void nvme_update_disk_info(struct gendisk *disk,
 	nvme_config_discard(disk, ns);
 	nvme_config_write_zeroes(disk, ns);
 
-	if ((id->nsattr & NVME_NS_ATTR_RO) ||
-	    test_bit(NVME_NS_FORCE_RO, &ns->flags))
-		set_disk_ro(disk, true);
+	set_disk_ro(disk, (id->nsattr & NVME_NS_ATTR_RO) ||
+		test_bit(NVME_NS_FORCE_RO, &ns->flags));
 }
 
 static inline bool nvme_first_scan(struct gendisk *disk)
@@ -2176,17 +2176,18 @@ static int nvme_update_ns_info(struct nvme_ns *ns, struct nvme_id_ns *id)
 	ns->lba_shift = id->lbaf[lbaf].ds;
 	nvme_set_queue_limits(ns->ctrl, ns->queue);
 
+	ret = nvme_configure_metadata(ns, id);
+	if (ret)
+		goto out_unfreeze;
+	nvme_set_chunk_sectors(ns, id);
+	nvme_update_disk_info(ns->disk, ns, id);
+
 	if (ns->head->ids.csi == NVME_CSI_ZNS) {
 		ret = nvme_update_zone_info(ns, lbaf);
 		if (ret)
 			goto out_unfreeze;
 	}
 
-	ret = nvme_configure_metadata(ns, id);
-	if (ret)
-		goto out_unfreeze;
-	nvme_set_chunk_sectors(ns, id);
-	nvme_update_disk_info(ns->disk, ns, id);
 	blk_mq_unfreeze_queue(ns->disk->queue);
 
 	if (blk_queue_is_zoned(ns->queue)) {
diff --git a/drivers/nvme/host/lightnvm.c b/drivers/nvme/host/lightnvm.c
index 470cef3abec3db..b705988629f224 100644
--- a/drivers/nvme/host/lightnvm.c
+++ b/drivers/nvme/host/lightnvm.c
@@ -695,7 +695,7 @@ static int nvme_nvm_submit_io(struct nvm_dev *dev, struct nvm_rq *rqd,
 
 	rq->end_io_data = rqd;
 
-	blk_execute_rq_nowait(q, NULL, rq, 0, nvme_nvm_end_io);
+	blk_execute_rq_nowait(NULL, rq, 0, nvme_nvm_end_io);
 
 	return 0;
 
@@ -757,7 +757,6 @@ static int nvme_nvm_submit_user_cmd(struct request_queue *q,
 {
 	bool write = nvme_is_write((struct nvme_command *)vcmd);
 	struct nvm_dev *dev = ns->ndev;
-	struct gendisk *disk = ns->disk;
 	struct request *rq;
 	struct bio *bio = NULL;
 	__le64 *ppa_list = NULL;
@@ -817,10 +816,10 @@ static int nvme_nvm_submit_user_cmd(struct request_queue *q,
 			vcmd->ph_rw.metadata = cpu_to_le64(metadata_dma);
 		}
 
-		bio->bi_disk = disk;
+		bio_set_dev(bio, ns->disk->part0);
 	}
 
-	blk_execute_rq(q, NULL, rq, 0);
+	blk_execute_rq(NULL, rq, 0);
 
 	if (nvme_req(rq)->flags & NVME_REQ_CANCELLED)
 		ret = -EINTR;
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c
index 282b7a4ea9a9a7..1427c9555cef38 100644
--- a/drivers/nvme/host/multipath.c
+++ b/drivers/nvme/host/multipath.c
@@ -296,7 +296,7 @@ static bool nvme_available_path(struct nvme_ns_head *head)
 
 blk_qc_t nvme_ns_head_submit_bio(struct bio *bio)
 {
-	struct nvme_ns_head *head = bio->bi_disk->private_data;
+	struct nvme_ns_head *head = bio->bi_bdev->bd_disk->private_data;
 	struct device *dev = disk_to_dev(head->disk);
 	struct nvme_ns *ns;
 	blk_qc_t ret = BLK_QC_T_NONE;
@@ -312,7 +312,7 @@ blk_qc_t nvme_ns_head_submit_bio(struct bio *bio)
 	srcu_idx = srcu_read_lock(&head->srcu);
 	ns = nvme_find_path(head);
 	if (likely(ns)) {
-		bio->bi_disk = ns->disk;
+		bio_set_dev(bio, ns->disk->part0);
 		bio->bi_opf |= REQ_NVME_MPATH;
 		trace_block_bio_remap(bio, disk_devt(ns->head->disk),
 				      bio->bi_iter.bi_sector);
@@ -352,7 +352,7 @@ static void nvme_requeue_work(struct work_struct *work)
 		 * Reset disk to the mpath node and resubmit to select a new
 		 * path.
 		 */
-		bio->bi_disk = head->disk;
+		bio_set_dev(bio, head->disk->part0);
 		submit_bio_noacct(bio);
 	}
 }
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 6bad4d4dcdf073..808ab518692884 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -1357,7 +1357,7 @@ static enum blk_eh_timer_return nvme_timeout(struct request *req, bool reserved)
 	}
 
 	abort_req->end_io_data = NULL;
-	blk_execute_rq_nowait(abort_req->q, NULL, abort_req, 0, abort_endio);
+	blk_execute_rq_nowait(NULL, abort_req, 0, abort_endio);
 
 	/*
 	 * The aborted req will be completed on receiving the abort req.
@@ -2281,7 +2281,7 @@ static int nvme_delete_queue(struct nvme_queue *nvmeq, u8 opcode)
 	req->end_io_data = nvmeq;
 
 	init_completion(&nvmeq->delete_done);
-	blk_execute_rq_nowait(q, NULL, req, false,
+	blk_execute_rq_nowait(NULL, req, false,
 			opcode == nvme_admin_delete_cq ?
 				nvme_del_cq_end : nvme_del_queue_end);
 	return 0;
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index b7ce4f221d9903..f5ef3edeb2fd5c 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -1468,7 +1468,7 @@ static int nvme_rdma_map_sg_pi(struct nvme_rdma_queue *queue,
 	if (unlikely(nr))
 		goto mr_put;
 
-	nvme_rdma_set_sig_attrs(blk_get_integrity(bio->bi_disk), c,
+	nvme_rdma_set_sig_attrs(blk_get_integrity(bio->bi_bdev->bd_disk), c,
 				req->mr->sig_attrs, ns->pi_type);
 	nvme_rdma_set_prot_checks(c, &req->mr->sig_attrs->check_mask);
 
diff --git a/drivers/nvme/host/zns.c b/drivers/nvme/host/zns.c
index 1dfe9a3500e3a9..c7e3ec561ba0ca 100644
--- a/drivers/nvme/host/zns.c
+++ b/drivers/nvme/host/zns.c
@@ -9,13 +9,7 @@
 
 int nvme_revalidate_zones(struct nvme_ns *ns)
 {
-	struct request_queue *q = ns->queue;
-	int ret;
-
-	ret = blk_revalidate_disk_zones(ns->disk, NULL);
-	if (!ret)
-		blk_queue_max_zone_append_sectors(q, ns->ctrl->max_zone_append);
-	return ret;
+	return blk_revalidate_disk_zones(ns->disk, NULL);
 }
 
 static int nvme_set_max_append(struct nvme_ctrl *ctrl)
@@ -109,10 +103,11 @@ int nvme_update_zone_info(struct nvme_ns *ns, unsigned lbaf)
 		goto free_data;
 	}
 
-	q->limits.zoned = BLK_ZONED_HM;
+	blk_queue_set_zoned(ns->disk, BLK_ZONED_HM);
 	blk_queue_flag_set(QUEUE_FLAG_ZONE_RESETALL, q);
 	blk_queue_max_open_zones(q, le32_to_cpu(id->mor) + 1);
 	blk_queue_max_active_zones(q, le32_to_cpu(id->mar) + 1);
+	blk_queue_max_zone_append_sectors(q, ns->ctrl->max_zone_append);
 free_data:
 	kfree(id);
 	return status;
diff --git a/drivers/nvme/target/io-cmd-bdev.c b/drivers/nvme/target/io-cmd-bdev.c
index 125dde3f410ee7..bf6e0ac9ad2890 100644
--- a/drivers/nvme/target/io-cmd-bdev.c
+++ b/drivers/nvme/target/io-cmd-bdev.c
@@ -333,7 +333,7 @@ static void nvmet_bdev_execute_flush(struct nvmet_req *req)
 
 u16 nvmet_bdev_flush(struct nvmet_req *req)
 {
-	if (blkdev_issue_flush(req->ns->bdev, GFP_KERNEL))
+	if (blkdev_issue_flush(req->ns->bdev))
 		return NVME_SC_INTERNAL | NVME_SC_DNR;
 	return 0;
 }
diff --git a/drivers/nvme/target/passthru.c b/drivers/nvme/target/passthru.c
index b9776fc8f08f42..cbc88acdd2336d 100644
--- a/drivers/nvme/target/passthru.c
+++ b/drivers/nvme/target/passthru.c
@@ -275,7 +275,7 @@ static void nvmet_passthru_execute_cmd(struct nvmet_req *req)
 		schedule_work(&req->p.work);
 	} else {
 		rq->end_io_data = req;
-		blk_execute_rq_nowait(rq->q, ns ? ns->disk : NULL, rq, 0,
+		blk_execute_rq_nowait(ns ? ns->disk : NULL, rq, 0,
 				      nvmet_passthru_req_done);
 	}
 
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index c7eb9a10c680d2..28c04a4efa66f2 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -428,23 +428,15 @@ static int dasd_state_unfmt_to_basic(struct dasd_device *device)
 static int
 dasd_state_ready_to_online(struct dasd_device * device)
 {
-	struct gendisk *disk;
-	struct disk_part_iter piter;
-	struct block_device *part;
-
 	device->state = DASD_STATE_ONLINE;
 	if (device->block) {
 		dasd_schedule_block_bh(device->block);
 		if ((device->features & DASD_FEATURE_USERAW)) {
-			disk = device->block->gdp;
-			kobject_uevent(&disk_to_dev(disk)->kobj, KOBJ_CHANGE);
+			kobject_uevent(&disk_to_dev(device->block->gdp)->kobj,
+					KOBJ_CHANGE);
 			return 0;
 		}
-		disk = device->block->bdev->bd_disk;
-		disk_part_iter_init(&piter, disk, DISK_PITER_INCL_PART0);
-		while ((part = disk_part_iter_next(&piter)))
-			kobject_uevent(bdev_kobj(part), KOBJ_CHANGE);
-		disk_part_iter_exit(&piter);
+		disk_uevent(device->block->bdev->bd_disk, KOBJ_CHANGE);
 	}
 	return 0;
 }
@@ -455,9 +447,6 @@ dasd_state_ready_to_online(struct dasd_device * device)
 static int dasd_state_online_to_ready(struct dasd_device *device)
 {
 	int rc;
-	struct gendisk *disk;
-	struct disk_part_iter piter;
-	struct block_device *part;
 
 	if (device->discipline->online_to_ready) {
 		rc = device->discipline->online_to_ready(device);
@@ -466,13 +455,8 @@ static int dasd_state_online_to_ready(struct dasd_device *device)
 	}
 
 	device->state = DASD_STATE_READY;
-	if (device->block && !(device->features & DASD_FEATURE_USERAW)) {
-		disk = device->block->bdev->bd_disk;
-		disk_part_iter_init(&piter, disk, DISK_PITER_INCL_PART0);
-		while ((part = disk_part_iter_next(&piter)))
-			kobject_uevent(bdev_kobj(part), KOBJ_CHANGE);
-		disk_part_iter_exit(&piter);
-	}
+	if (device->block && !(device->features & DASD_FEATURE_USERAW))
+		disk_uevent(device->block->bdev->bd_disk, KOBJ_CHANGE);
 	return 0;
 }
 
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 299e77ec2c4163..da33cb4cba28eb 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -879,17 +879,13 @@ dcssblk_submit_bio(struct bio *bio)
 	blk_queue_split(&bio);
 
 	bytes_done = 0;
-	dev_info = bio->bi_disk->private_data;
+	dev_info = bio->bi_bdev->bd_disk->private_data;
 	if (dev_info == NULL)
 		goto fail;
 	if ((bio->bi_iter.bi_sector & 7) != 0 ||
 	    (bio->bi_iter.bi_size & 4095) != 0)
 		/* Request is not page-aligned. */
 		goto fail;
-	if (bio_end_sector(bio) > get_capacity(bio->bi_disk)) {
-		/* Request beyond end of DCSS segment. */
-		goto fail;
-	}
 	/* verify data transfer direction */
 	if (dev_info->is_shared) {
 		switch (dev_info->segment_type) {
diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c
index c2536f7767b366..d1ed39162943d5 100644
--- a/drivers/s390/block/xpram.c
+++ b/drivers/s390/block/xpram.c
@@ -184,7 +184,7 @@ static unsigned long xpram_highest_page_index(void)
  */
 static blk_qc_t xpram_submit_bio(struct bio *bio)
 {
-	xpram_device_t *xdev = bio->bi_disk->private_data;
+	xpram_device_t *xdev = bio->bi_bdev->bd_disk->private_data;
 	struct bio_vec bvec;
 	struct bvec_iter iter;
 	unsigned int index;
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index f11f51e2465f5d..c00f06e9ecb066 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -2007,7 +2007,7 @@ static void scsi_eh_lock_door(struct scsi_device *sdev)
 	req->timeout = 10 * HZ;
 	rq->retries = 5;
 
-	blk_execute_rq_nowait(req->q, NULL, req, 1, eh_lock_door_done);
+	blk_execute_rq_nowait(NULL, req, 1, eh_lock_door_done);
 }
 
 /**
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index b3f14f05340ad6..4d228065855954 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -269,7 +269,7 @@ int __scsi_execute(struct scsi_device *sdev, const unsigned char *cmd,
 	/*
 	 * head injection *required* here otherwise quiesce won't work
 	 */
-	blk_execute_rq(req->q, NULL, req, 1);
+	blk_execute_rq(NULL, req, 1);
 
 	/*
 	 * Some devices (USB mass-storage in particular) may transfer
diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c
index cf07b7f9357906..03adb39293c2d8 100644
--- a/drivers/scsi/sd_zbc.c
+++ b/drivers/scsi/sd_zbc.c
@@ -665,12 +665,28 @@ static int sd_zbc_init_disk(struct scsi_disk *sdkp)
 	return 0;
 }
 
-void sd_zbc_release_disk(struct scsi_disk *sdkp)
+static void sd_zbc_clear_zone_info(struct scsi_disk *sdkp)
 {
+	/* Serialize against revalidate zones */
+	mutex_lock(&sdkp->rev_mutex);
+
 	kvfree(sdkp->zones_wp_offset);
 	sdkp->zones_wp_offset = NULL;
 	kfree(sdkp->zone_wp_update_buf);
 	sdkp->zone_wp_update_buf = NULL;
+
+	sdkp->nr_zones = 0;
+	sdkp->rev_nr_zones = 0;
+	sdkp->zone_blocks = 0;
+	sdkp->rev_zone_blocks = 0;
+
+	mutex_unlock(&sdkp->rev_mutex);
+}
+
+void sd_zbc_release_disk(struct scsi_disk *sdkp)
+{
+	if (sd_is_zoned(sdkp))
+		sd_zbc_clear_zone_info(sdkp);
 }
 
 static void sd_zbc_revalidate_zones_cb(struct gendisk *disk)
@@ -769,6 +785,21 @@ int sd_zbc_read_zones(struct scsi_disk *sdkp, unsigned char *buf)
 		 */
 		return 0;
 
+	/* READ16/WRITE16 is mandatory for ZBC disks */
+	sdkp->device->use_16_for_rw = 1;
+	sdkp->device->use_10_for_rw = 0;
+
+	if (!blk_queue_is_zoned(q)) {
+		/*
+		 * This can happen for a host aware disk with partitions.
+		 * The block device zone information was already cleared
+		 * by blk_queue_set_zoned(). Only clear the scsi disk zone
+		 * information and exit early.
+		 */
+		sd_zbc_clear_zone_info(sdkp);
+		return 0;
+	}
+
 	/* Check zoned block device characteristics (unconstrained reads) */
 	ret = sd_zbc_check_zoned_characteristics(sdkp, buf);
 	if (ret)
@@ -789,9 +820,13 @@ int sd_zbc_read_zones(struct scsi_disk *sdkp, unsigned char *buf)
 	blk_queue_max_active_zones(q, 0);
 	nr_zones = round_up(sdkp->capacity, zone_blocks) >> ilog2(zone_blocks);
 
-	/* READ16/WRITE16 is mandatory for ZBC disks */
-	sdkp->device->use_16_for_rw = 1;
-	sdkp->device->use_10_for_rw = 0;
+	/*
+	 * Per ZBC and ZAC specifications, writes in sequential write required
+	 * zones of host-managed devices must be aligned to the device physical
+	 * block size.
+	 */
+	if (blk_queue_zoned_model(q) == BLK_ZONED_HM)
+		blk_queue_zone_write_granularity(q, sdkp->physical_block_size);
 
 	sdkp->rev_nr_zones = nr_zones;
 	sdkp->rev_zone_blocks = zone_blocks;
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index bfa8d77322d732..4383d93110f835 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -829,8 +829,7 @@ sg_common_write(Sg_fd * sfp, Sg_request * srp,
 
 	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, at_head, sg_rq_end_io);
+	blk_execute_rq_nowait(sdp->disk, srp->rq, at_head, sg_rq_end_io);
 	return 0;
 }
 
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 43f7624508a96c..841ad2fc369a07 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -585,7 +585,7 @@ static int st_scsi_execute(struct st_request *SRpnt, const unsigned char *cmd,
 	rq->retries = retries;
 	req->end_io_data = SRpnt;
 
-	blk_execute_rq_nowait(req->q, NULL, req, 1, st_scsi_execute_end);
+	blk_execute_rq_nowait(NULL, req, 1, st_scsi_execute_end);
 	return 0;
 }
 
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index b0cb5b95e892d3..cce455929778fc 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -241,6 +241,7 @@ struct target_core_file_cmd {
 	unsigned long	len;
 	struct se_cmd	*cmd;
 	struct kiocb	iocb;
+	struct bio_vec	bvecs[];
 };
 
 static void cmd_rw_aio_complete(struct kiocb *iocb, long ret, long ret2)
@@ -268,29 +269,22 @@ fd_execute_rw_aio(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents,
 	struct target_core_file_cmd *aio_cmd;
 	struct iov_iter iter = {};
 	struct scatterlist *sg;
-	struct bio_vec *bvec;
 	ssize_t len = 0;
 	int ret = 0, i;
 
-	aio_cmd = kmalloc(sizeof(struct target_core_file_cmd), GFP_KERNEL);
+	aio_cmd = kmalloc(struct_size(aio_cmd, bvecs, sgl_nents), GFP_KERNEL);
 	if (!aio_cmd)
 		return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
 
-	bvec = kcalloc(sgl_nents, sizeof(struct bio_vec), GFP_KERNEL);
-	if (!bvec) {
-		kfree(aio_cmd);
-		return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
-	}
-
 	for_each_sg(sgl, sg, sgl_nents, i) {
-		bvec[i].bv_page = sg_page(sg);
-		bvec[i].bv_len = sg->length;
-		bvec[i].bv_offset = sg->offset;
+		aio_cmd->bvecs[i].bv_page = sg_page(sg);
+		aio_cmd->bvecs[i].bv_len = sg->length;
+		aio_cmd->bvecs[i].bv_offset = sg->offset;
 
 		len += sg->length;
 	}
 
-	iov_iter_bvec(&iter, is_write, bvec, sgl_nents, len);
+	iov_iter_bvec(&iter, is_write, aio_cmd->bvecs, sgl_nents, len);
 
 	aio_cmd->cmd = cmd;
 	aio_cmd->len = len;
@@ -307,8 +301,6 @@ fd_execute_rw_aio(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents,
 	else
 		ret = call_read_iter(file, &aio_cmd->iocb, &iter);
 
-	kfree(bvec);
-
 	if (ret != -EIOCBQUEUED)
 		cmd_rw_aio_complete(&aio_cmd->iocb, ret, 0);
 
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index 7994f27e45271c..33770e5808ce5e 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -1000,8 +1000,7 @@ pscsi_execute_cmd(struct se_cmd *cmd)
 		req->timeout = PS_TIMEOUT_OTHER;
 	scsi_req(req)->retries = PS_RETRY;
 
-	blk_execute_rq_nowait(pdv->pdv_sd->request_queue, NULL, req,
-			(cmd->sam_task_attr == TCM_HEAD_TAG),
+	blk_execute_rq_nowait(NULL, req, (cmd->sam_task_attr == TCM_HEAD_TAG),
 			pscsi_req_done);
 
 	return 0;