Merge tag 'for-5.18/block-2022-03-18' of git://git.kernel.dk/linux-block

Pull block updates from Jens Axboe:

 - BFQ cleanups and fixes (Yu, Zhang, Yahu, Paolo)

 - blk-rq-qos completion fix (Tejun)

 - blk-cgroup merge fix (Tejun)

 - Add offline error return value to distinguish it from an IO error on
   the device (Song)

 - IO stats fixes (Zhang, Christoph)

 - blkcg refcount fixes (Ming, Yu)

 - Fix for indefinite dispatch loop softlockup (Shin'ichiro)

 - blk-mq hardware queue management improvements (Ming)

 - sbitmap dead code removal (Ming, John)

 - Plugging merge improvements (me)

 - Show blk-crypto capabilities in sysfs (Eric)

 - Multiple delayed queue run improvement (David)

 - Block throttling fixes (Ming)

 - Start deprecating auto module loading based on dev_t (Christoph)

 - bio allocation improvements (Christoph, Chaitanya)

 - Get rid of bio_devname (Christoph)

 - bio clone improvements (Christoph)

 - Block plugging improvements (Christoph)

 - Get rid of genhd.h header (Christoph)

 - Ensure drivers use appropriate flush helpers (Christoph)

 - Refcounting improvements (Christoph)

 - Queue initialization and teardown improvements (Ming, Christoph)

 - Misc fixes/improvements (Barry, Chaitanya, Colin, Dan, Jiapeng,
   Lukas, Nian, Yang, Eric, Chengming)

* tag 'for-5.18/block-2022-03-18' of git://git.kernel.dk/linux-block: (127 commits)
  block: cancel all throttled bios in del_gendisk()
  block: let blkcg_gq grab request queue's refcnt
  block: avoid use-after-free on throttle data
  block: limit request dispatch loop duration
  block/bfq-iosched: Fix spelling mistake "tenative" -> "tentative"
  sr: simplify the local variable initialization in sr_block_open()
  block: don't merge across cgroup boundaries if blkcg is enabled
  block: fix rq-qos breakage from skipping rq_qos_done_bio()
  block: flush plug based on hardware and software queue order
  block: ensure plug merging checks the correct queue at least once
  block: move rq_qos_exit() into disk_release()
  block: do more work in elevator_exit
  block: move blk_exit_queue into disk_release
  block: move q_usage_counter release into blk_queue_release
  block: don't remove hctx debugfs dir from blk_mq_exit_queue
  block: move blkcg initialization/destroy into disk allocation/release handler
  sr: implement ->free_disk to simplify refcounting
  sd: implement ->free_disk to simplify refcounting
  sd: delay calling free_opal_dev
  sd: call sd_zbc_release_disk before releasing the scsi_device reference
  ...

28 files changed, 240 insertions, 421 deletions

diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig
index b5ea378e66cb..998a5cfdbc4e 100644
--- a/drivers/md/Kconfig
+++ b/drivers/md/Kconfig
@@ -204,6 +204,7 @@ config BLK_DEV_DM
 	tristate "Device mapper support"
 	select BLOCK_HOLDER_DEPRECATED if SYSFS
 	select BLK_DEV_DM_BUILTIN
+	select BLK_MQ_STACKING
 	depends on DAX || DAX=n
 	help
 	  Device-mapper is a low level volume manager.  It works by allowing
diff --git a/drivers/md/bcache/io.c b/drivers/md/bcache/io.c
index 9c6f9ec55b72..020712c5203f 100644
--- a/drivers/md/bcache/io.c
+++ b/drivers/md/bcache/io.c
@@ -26,7 +26,8 @@ struct bio *bch_bbio_alloc(struct cache_set *c)
 	struct bbio *b = mempool_alloc(&c->bio_meta, GFP_NOIO);
 	struct bio *bio = &b->bio;
 
-	bio_init(bio, bio->bi_inline_vecs, meta_bucket_pages(&c->cache->sb));
+	bio_init(bio, NULL, bio->bi_inline_vecs,
+		 meta_bucket_pages(&c->cache->sb), 0);
 
 	return bio;
 }
diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index 61bd79babf7a..7c2ca52ca3e4 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -53,14 +53,12 @@ static int journal_read_bucket(struct cache *ca, struct list_head *list,
 reread:		left = ca->sb.bucket_size - offset;
 		len = min_t(unsigned int, left, PAGE_SECTORS << JSET_BITS);
 
-		bio_reset(bio);
+		bio_reset(bio, ca->bdev, REQ_OP_READ);
 		bio->bi_iter.bi_sector	= bucket + offset;
-		bio_set_dev(bio, ca->bdev);
 		bio->bi_iter.bi_size	= len << 9;
 
 		bio->bi_end_io	= journal_read_endio;
 		bio->bi_private = &cl;
-		bio_set_op_attrs(bio, REQ_OP_READ, 0);
 		bch_bio_map(bio, data);
 
 		closure_bio_submit(ca->set, bio, &cl);
@@ -611,11 +609,9 @@ static void do_journal_discard(struct cache *ca)
 
 		atomic_set(&ja->discard_in_flight, DISCARD_IN_FLIGHT);
 
-		bio_init(bio, bio->bi_inline_vecs, 1);
-		bio_set_op_attrs(bio, REQ_OP_DISCARD, 0);
+		bio_init(bio, ca->bdev, bio->bi_inline_vecs, 1, REQ_OP_DISCARD);
 		bio->bi_iter.bi_sector	= bucket_to_sector(ca->set,
 						ca->sb.d[ja->discard_idx]);
-		bio_set_dev(bio, ca->bdev);
 		bio->bi_iter.bi_size	= bucket_bytes(ca);
 		bio->bi_end_io		= journal_discard_endio;
 
@@ -773,16 +769,14 @@ static void journal_write_unlocked(struct closure *cl)
 
 		atomic_long_add(sectors, &ca->meta_sectors_written);
 
-		bio_reset(bio);
+		bio_reset(bio, ca->bdev, REQ_OP_WRITE | 
+			  REQ_SYNC | REQ_META | REQ_PREFLUSH | REQ_FUA);
+		bch_bio_map(bio, w->data);
 		bio->bi_iter.bi_sector	= PTR_OFFSET(k, i);
-		bio_set_dev(bio, ca->bdev);
 		bio->bi_iter.bi_size = sectors << 9;
 
 		bio->bi_end_io	= journal_write_endio;
 		bio->bi_private = w;
-		bio_set_op_attrs(bio, REQ_OP_WRITE,
-				 REQ_SYNC|REQ_META|REQ_PREFLUSH|REQ_FUA);
-		bch_bio_map(bio, w->data);
 
 		trace_bcache_journal_write(bio, w->data->keys);
 		bio_list_add(&list, bio);
diff --git a/drivers/md/bcache/movinggc.c b/drivers/md/bcache/movinggc.c
index b9c3d27ec093..99499d1f6e66 100644
--- a/drivers/md/bcache/movinggc.c
+++ b/drivers/md/bcache/movinggc.c
@@ -79,8 +79,8 @@ static void moving_init(struct moving_io *io)
 {
 	struct bio *bio = &io->bio.bio;
 
-	bio_init(bio, bio->bi_inline_vecs,
-		 DIV_ROUND_UP(KEY_SIZE(&io->w->key), PAGE_SECTORS));
+	bio_init(bio, NULL, bio->bi_inline_vecs,
+		 DIV_ROUND_UP(KEY_SIZE(&io->w->key), PAGE_SECTORS), 0);
 	bio_get(bio);
 	bio_set_prio(bio, IOPRIO_PRIO_VALUE(IOPRIO_CLASS_IDLE, 0));
 
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index d15aae6c51c1..6869e010475a 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -685,8 +685,7 @@ static void do_bio_hook(struct search *s,
 {
 	struct bio *bio = &s->bio.bio;
 
-	bio_init(bio, NULL, 0);
-	__bio_clone_fast(bio, orig_bio);
+	bio_init_clone(bio->bi_bdev, bio, orig_bio, GFP_NOIO);
 	/*
 	 * bi_end_io can be set separately somewhere else, e.g. the
 	 * variants in,
@@ -831,11 +830,11 @@ static void cached_dev_read_done(struct closure *cl)
 	 */
 
 	if (s->iop.bio) {
-		bio_reset(s->iop.bio);
+		bio_reset(s->iop.bio, s->cache_miss->bi_bdev, REQ_OP_READ);
 		s->iop.bio->bi_iter.bi_sector =
 			s->cache_miss->bi_iter.bi_sector;
-		bio_copy_dev(s->iop.bio, s->cache_miss);
 		s->iop.bio->bi_iter.bi_size = s->insert_bio_sectors << 9;
+		bio_clone_blkg_association(s->iop.bio, s->cache_miss);
 		bch_bio_map(s->iop.bio, NULL);
 
 		bio_copy_data(s->cache_miss, s->iop.bio);
@@ -913,14 +912,13 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
 	/* btree_search_recurse()'s btree iterator is no good anymore */
 	ret = miss == bio ? MAP_DONE : -EINTR;
 
-	cache_bio = bio_alloc_bioset(GFP_NOWAIT,
+	cache_bio = bio_alloc_bioset(miss->bi_bdev,
 			DIV_ROUND_UP(s->insert_bio_sectors, PAGE_SECTORS),
-			&dc->disk.bio_split);
+			0, GFP_NOWAIT, &dc->disk.bio_split);
 	if (!cache_bio)
 		goto out_submit;
 
 	cache_bio->bi_iter.bi_sector	= miss->bi_iter.bi_sector;
-	bio_copy_dev(cache_bio, miss);
 	cache_bio->bi_iter.bi_size	= s->insert_bio_sectors << 9;
 
 	cache_bio->bi_end_io	= backing_request_endio;
@@ -1025,21 +1023,21 @@ static void cached_dev_write(struct cached_dev *dc, struct search *s)
 			 */
 			struct bio *flush;
 
-			flush = bio_alloc_bioset(GFP_NOIO, 0,
-						 &dc->disk.bio_split);
+			flush = bio_alloc_bioset(bio->bi_bdev, 0,
+						 REQ_OP_WRITE | REQ_PREFLUSH,
+						 GFP_NOIO, &dc->disk.bio_split);
 			if (!flush) {
 				s->iop.status = BLK_STS_RESOURCE;
 				goto insert_data;
 			}
-			bio_copy_dev(flush, bio);
 			flush->bi_end_io = backing_request_endio;
 			flush->bi_private = cl;
-			flush->bi_opf = REQ_OP_WRITE | REQ_PREFLUSH;
 			/* I/O request sent to backing device */
 			closure_bio_submit(s->iop.c, flush, cl);
 		}
 	} else {
-		s->iop.bio = bio_clone_fast(bio, GFP_NOIO, &dc->disk.bio_split);
+		s->iop.bio = bio_alloc_clone(bio->bi_bdev, bio, GFP_NOIO,
+					     &dc->disk.bio_split);
 		/* I/O request sent to backing device */
 		bio->bi_end_io = backing_request_endio;
 		closure_bio_submit(s->iop.c, bio, cl);
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 140f35dc0c45..bf3de149d3c9 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -18,7 +18,6 @@
 #include <linux/blkdev.h>
 #include <linux/pagemap.h>
 #include <linux/debugfs.h>
-#include <linux/genhd.h>
 #include <linux/idr.h>
 #include <linux/kthread.h>
 #include <linux/workqueue.h>
@@ -343,8 +342,7 @@ void bch_write_bdev_super(struct cached_dev *dc, struct closure *parent)
 	down(&dc->sb_write_mutex);
 	closure_init(cl, parent);
 
-	bio_init(bio, dc->sb_bv, 1);
-	bio_set_dev(bio, dc->bdev);
+	bio_init(bio, dc->bdev, dc->sb_bv, 1, 0);
 	bio->bi_end_io	= write_bdev_super_endio;
 	bio->bi_private = dc;
 
@@ -387,8 +385,7 @@ void bcache_write_super(struct cache_set *c)
 	if (ca->sb.version < version)
 		ca->sb.version = version;
 
-	bio_init(bio, ca->sb_bv, 1);
-	bio_set_dev(bio, ca->bdev);
+	bio_init(bio, ca->bdev, ca->sb_bv, 1, 0);
 	bio->bi_end_io	= write_super_endio;
 	bio->bi_private = ca;
 
@@ -2240,7 +2237,7 @@ static int cache_alloc(struct cache *ca)
 	__module_get(THIS_MODULE);
 	kobject_init(&ca->kobj, &bch_cache_ktype);
 
-	bio_init(&ca->journal.bio, ca->journal.bio.bi_inline_vecs, 8);
+	bio_init(&ca->journal.bio, NULL, ca->journal.bio.bi_inline_vecs, 8, 0);
 
 	/*
 	 * when ca->sb.njournal_buckets is not zero, journal exists,
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index c7560f66dca8..d42301e6309d 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -292,8 +292,8 @@ static void dirty_init(struct keybuf_key *w)
 	struct dirty_io *io = w->private;
 	struct bio *bio = &io->bio;
 
-	bio_init(bio, bio->bi_inline_vecs,
-		 DIV_ROUND_UP(KEY_SIZE(&w->key), PAGE_SECTORS));
+	bio_init(bio, NULL, bio->bi_inline_vecs,
+		 DIV_ROUND_UP(KEY_SIZE(&w->key), PAGE_SECTORS), 0);
 	if (!io->dc->writeback_percent)
 		bio_set_prio(bio, IOPRIO_PRIO_VALUE(IOPRIO_CLASS_IDLE, 0));
 
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index 447d030036d1..89fdfb49d564 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -744,21 +744,14 @@ static void check_if_tick_bio_needed(struct cache *cache, struct bio *bio)
 	spin_unlock_irq(&cache->lock);
 }
 
-static void __remap_to_origin_clear_discard(struct cache *cache, struct bio *bio,
-					    dm_oblock_t oblock, bool bio_has_pbd)
-{
-	if (bio_has_pbd)
-		check_if_tick_bio_needed(cache, bio);
-	remap_to_origin(cache, bio);
-	if (bio_data_dir(bio) == WRITE)
-		clear_discard(cache, oblock_to_dblock(cache, oblock));
-}
-
 static void remap_to_origin_clear_discard(struct cache *cache, struct bio *bio,
 					  dm_oblock_t oblock)
 {
 	// FIXME: check_if_tick_bio_needed() is called way too much through this interface
-	__remap_to_origin_clear_discard(cache, bio, oblock, true);
+	check_if_tick_bio_needed(cache, bio);
+	remap_to_origin(cache, bio);
+	if (bio_data_dir(bio) == WRITE)
+		clear_discard(cache, oblock_to_dblock(cache, oblock));
 }
 
 static void remap_to_cache_dirty(struct cache *cache, struct bio *bio,
@@ -826,16 +819,15 @@ static void issue_op(struct bio *bio, void *context)
 static void remap_to_origin_and_cache(struct cache *cache, struct bio *bio,
 				      dm_oblock_t oblock, dm_cblock_t cblock)
 {
-	struct bio *origin_bio = bio_clone_fast(bio, GFP_NOIO, &cache->bs);
+	struct bio *origin_bio = bio_alloc_clone(cache->origin_dev->bdev, bio,
+						 GFP_NOIO, &cache->bs);
 
 	BUG_ON(!origin_bio);
 
 	bio_chain(origin_bio, bio);
-	/*
-	 * Passing false to __remap_to_origin_clear_discard() skips
-	 * all code that might use per_bio_data (since clone doesn't have it)
-	 */
-	__remap_to_origin_clear_discard(cache, origin_bio, oblock, false);
+
+	if (bio_data_dir(origin_bio) == WRITE)
+		clear_discard(cache, oblock_to_dblock(cache, oblock));
 	submit_bio(origin_bio);
 
 	remap_to_cache(cache, bio, cblock);
diff --git a/drivers/md/dm-core.h b/drivers/md/dm-core.h
index b855fef4f38a..72d18c3fbf1f 100644
--- a/drivers/md/dm-core.h
+++ b/drivers/md/dm-core.h
@@ -11,7 +11,6 @@
 
 #include <linux/kthread.h>
 #include <linux/ktime.h>
-#include <linux/genhd.h>
 #include <linux/blk-mq.h>
 #include <linux/blk-crypto-profile.h>
 
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index d4ae31558826..e2b0af4a2ee8 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -234,7 +234,7 @@ static volatile unsigned long dm_crypt_pages_per_client;
 #define DM_CRYPT_MEMORY_PERCENT			2
 #define DM_CRYPT_MIN_PAGES_PER_CLIENT		(BIO_MAX_VECS * 16)
 
-static void clone_init(struct dm_crypt_io *, struct bio *);
+static void crypt_endio(struct bio *clone);
 static void kcryptd_queue_crypt(struct dm_crypt_io *io);
 static struct scatterlist *crypt_get_sg_data(struct crypt_config *cc,
 					     struct scatterlist *sg);
@@ -1364,11 +1364,10 @@ static int crypt_convert_block_aead(struct crypt_config *cc,
 	}
 
 	if (r == -EBADMSG) {
-		char b[BDEVNAME_SIZE];
 		sector_t s = le64_to_cpu(*sector);
 
-		DMERR_LIMIT("%s: INTEGRITY AEAD ERROR, sector %llu",
-			    bio_devname(ctx->bio_in, b), s);
+		DMERR_LIMIT("%pg: INTEGRITY AEAD ERROR, sector %llu",
+			    ctx->bio_in->bi_bdev, s);
 		dm_audit_log_bio(DM_MSG_PREFIX, "integrity-aead",
 				 ctx->bio_in, s, 0);
 	}
@@ -1672,11 +1671,10 @@ retry:
 	if (unlikely(gfp_mask & __GFP_DIRECT_RECLAIM))
 		mutex_lock(&cc->bio_alloc_lock);
 
-	clone = bio_alloc_bioset(GFP_NOIO, nr_iovecs, &cc->bs);
-	if (!clone)
-		goto out;
-
-	clone_init(io, clone);
+	clone = bio_alloc_bioset(cc->dev->bdev, nr_iovecs, io->base_bio->bi_opf,
+				 GFP_NOIO, &cc->bs);
+	clone->bi_private = io;
+	clone->bi_end_io = crypt_endio;
 
 	remaining_size = size;
 
@@ -1702,7 +1700,7 @@ retry:
 		bio_put(clone);
 		clone = NULL;
 	}
-out:
+
 	if (unlikely(gfp_mask & __GFP_DIRECT_RECLAIM))
 		mutex_unlock(&cc->bio_alloc_lock);
 
@@ -1829,34 +1827,25 @@ static void crypt_endio(struct bio *clone)
 	crypt_dec_pending(io);
 }
 
-static void clone_init(struct dm_crypt_io *io, struct bio *clone)
-{
-	struct crypt_config *cc = io->cc;
-
-	clone->bi_private = io;
-	clone->bi_end_io  = crypt_endio;
-	bio_set_dev(clone, cc->dev->bdev);
-	clone->bi_opf	  = io->base_bio->bi_opf;
-}
-
 static int kcryptd_io_read(struct dm_crypt_io *io, gfp_t gfp)
 {
 	struct crypt_config *cc = io->cc;
 	struct bio *clone;
 
 	/*
-	 * We need the original biovec array in order to decrypt
-	 * the whole bio data *afterwards* -- thanks to immutable
-	 * biovecs we don't need to worry about the block layer
-	 * modifying the biovec array; so leverage bio_clone_fast().
+	 * We need the original biovec array in order to decrypt the whole bio
+	 * data *afterwards* -- thanks to immutable biovecs we don't need to
+	 * worry about the block layer modifying the biovec array; so leverage
+	 * bio_alloc_clone().
 	 */
-	clone = bio_clone_fast(io->base_bio, gfp, &cc->bs);
+	clone = bio_alloc_clone(cc->dev->bdev, io->base_bio, gfp, &cc->bs);
 	if (!clone)
 		return 1;
+	clone->bi_private = io;
+	clone->bi_end_io = crypt_endio;
 
 	crypt_inc_pending(io);
 
-	clone_init(io, clone);
 	clone->bi_iter.bi_sector = cc->start + io->sector;
 
 	if (dm_crypt_integrity_io_alloc(io, clone)) {
@@ -2179,11 +2168,10 @@ static void kcryptd_async_done(struct crypto_async_request *async_req,
 		error = cc->iv_gen_ops->post(cc, org_iv_of_dmreq(cc, dmreq), dmreq);
 
 	if (error == -EBADMSG) {
-		char b[BDEVNAME_SIZE];
 		sector_t s = le64_to_cpu(*org_sector_of_dmreq(cc, dmreq));
 
-		DMERR_LIMIT("%s: INTEGRITY AEAD ERROR, sector %llu",
-			    bio_devname(ctx->bio_in, b), s);
+		DMERR_LIMIT("%pg: INTEGRITY AEAD ERROR, sector %llu",
+			    ctx->bio_in->bi_bdev, s);
 		dm_audit_log_bio(DM_MSG_PREFIX, "integrity-aead",
 				 ctx->bio_in, s, 0);
 		io->error = BLK_STS_PROTECTION;
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index eb4b5e52bd6f..c58a5111cb57 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -1788,12 +1788,11 @@ again:
 						checksums_ptr - checksums, dio->op == REQ_OP_READ ? TAG_CMP : TAG_WRITE);
 			if (unlikely(r)) {
 				if (r > 0) {
-					char b[BDEVNAME_SIZE];
 					sector_t s;
 
 					s = sector - ((r + ic->tag_size - 1) / ic->tag_size);
-					DMERR_LIMIT("%s: Checksum failed at sector 0x%llx",
-						    bio_devname(bio, b), s);
+					DMERR_LIMIT("%pg: Checksum failed at sector 0x%llx",
+						    bio->bi_bdev, s);
 					r = -EILSEQ;
 					atomic64_inc(&ic->number_of_mismatches);
 					dm_audit_log_bio(DM_MSG_PREFIX, "integrity-checksum",
diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
index 2d3cda0acacb..23e038f8dc84 100644
--- a/drivers/md/dm-io.c
+++ b/drivers/md/dm-io.c
@@ -345,11 +345,10 @@ static void do_region(int op, int op_flags, unsigned region,
 						(PAGE_SIZE >> SECTOR_SHIFT)));
 		}
 
-		bio = bio_alloc_bioset(GFP_NOIO, num_bvecs, &io->client->bios);
+		bio = bio_alloc_bioset(where->bdev, num_bvecs, op | op_flags,
+				       GFP_NOIO, &io->client->bios);
 		bio->bi_iter.bi_sector = where->sector + (where->count - remaining);
-		bio_set_dev(bio, where->bdev);
 		bio->bi_end_io = endio;
-		bio_set_op_attrs(bio, op, op_flags);
 		store_io_and_region_in_bio(bio, io, region);
 
 		if (op == REQ_OP_DISCARD || op == REQ_OP_WRITE_ZEROES) {
diff --git a/drivers/md/dm-log-writes.c b/drivers/md/dm-log-writes.c
index 139b09b06eda..c9d036d6bb2e 100644
--- a/drivers/md/dm-log-writes.c
+++ b/drivers/md/dm-log-writes.c
@@ -217,18 +217,12 @@ static int write_metadata(struct log_writes_c *lc, void *entry,
 	void *ptr;
 	size_t ret;
 
-	bio = bio_alloc(GFP_KERNEL, 1);
-	if (!bio) {
-		DMERR("Couldn't alloc log bio");
-		goto error;
-	}
+	bio = bio_alloc(lc->logdev->bdev, 1, REQ_OP_WRITE, GFP_KERNEL);
 	bio->bi_iter.bi_size = 0;
 	bio->bi_iter.bi_sector = sector;
-	bio_set_dev(bio, lc->logdev->bdev);
 	bio->bi_end_io = (sector == WRITE_LOG_SUPER_SECTOR) ?
 			  log_end_super : log_end_io;
 	bio->bi_private = lc;
-	bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
 
 	page = alloc_page(GFP_KERNEL);
 	if (!page) {
@@ -275,18 +269,12 @@ static int write_inline_data(struct log_writes_c *lc, void *entry,
 
 		atomic_inc(&lc->io_blocks);
 
-		bio = bio_alloc(GFP_KERNEL, bio_pages);
-		if (!bio) {
-			DMERR("Couldn't alloc inline data bio");
-			goto error;
-		}
-
+		bio = bio_alloc(lc->logdev->bdev, bio_pages, REQ_OP_WRITE,
+				GFP_KERNEL);
 		bio->bi_iter.bi_size = 0;
 		bio->bi_iter.bi_sector = sector;
-		bio_set_dev(bio, lc->logdev->bdev);
 		bio->bi_end_io = log_end_io;
 		bio->bi_private = lc;
-		bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
 
 		for (i = 0; i < bio_pages; i++) {
 			pg_datalen = min_t(int, datalen, PAGE_SIZE);
@@ -322,7 +310,6 @@ static int write_inline_data(struct log_writes_c *lc, void *entry,
 error_bio:
 	bio_free_pages(bio);
 	bio_put(bio);
-error:
 	put_io_block(lc);
 	return -1;
 }
@@ -363,17 +350,12 @@ static int log_one_block(struct log_writes_c *lc,
 		goto out;
 
 	atomic_inc(&lc->io_blocks);
-	bio = bio_alloc(GFP_KERNEL, bio_max_segs(block->vec_cnt));
-	if (!bio) {
-		DMERR("Couldn't alloc log bio");
-		goto error;
-	}
+	bio = bio_alloc(lc->logdev->bdev, bio_max_segs(block->vec_cnt),
+			REQ_OP_WRITE, GFP_KERNEL);
 	bio->bi_iter.bi_size = 0;
 	bio->bi_iter.bi_sector = sector;
-	bio_set_dev(bio, lc->logdev->bdev);
 	bio->bi_end_io = log_end_io;
 	bio->bi_private = lc;
-	bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
 
 	for (i = 0; i < block->vec_cnt; i++) {
 		/*
@@ -385,18 +367,13 @@ static int log_one_block(struct log_writes_c *lc,
 		if (ret != block->vecs[i].bv_len) {
 			atomic_inc(&lc->io_blocks);
 			submit_bio(bio);
-			bio = bio_alloc(GFP_KERNEL,
-					bio_max_segs(block->vec_cnt - i));
-			if (!bio) {
-				DMERR("Couldn't alloc log bio");
-				goto error;
-			}
+			bio = bio_alloc(lc->logdev->bdev,
+					bio_max_segs(block->vec_cnt - i),
+					REQ_OP_WRITE, GFP_KERNEL);
 			bio->bi_iter.bi_size = 0;
 			bio->bi_iter.bi_sector = sector;
-			bio_set_dev(bio, lc->logdev->bdev);
 			bio->bi_end_io = log_end_io;
 			bio->bi_private = lc;
-			bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
 
 			ret = bio_add_page(bio, block->vecs[i].bv_page,
 					   block->vecs[i].bv_len, 0);
diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c
index 579ab6183d4d..6948d5db9092 100644
--- a/drivers/md/dm-rq.c
+++ b/drivers/md/dm-rq.c
@@ -303,21 +303,6 @@ static void end_clone_request(struct request *clone, blk_status_t error)
 	dm_complete_request(tio->orig, error);
 }
 
-static blk_status_t dm_dispatch_clone_request(struct request *clone, struct request *rq)
-{
-	blk_status_t r;
-
-	if (blk_queue_io_stat(clone->q))
-		clone->rq_flags |= RQF_IO_STAT;
-
-	clone->start_time_ns = ktime_get_ns();
-	r = blk_insert_cloned_request(clone->q, clone);
-	if (r != BLK_STS_OK && r != BLK_STS_RESOURCE && r != BLK_STS_DEV_RESOURCE)
-		/* must complete clone in terms of original request */
-		dm_complete_request(rq, r);
-	return r;
-}
-
 static int dm_rq_bio_constructor(struct bio *bio, struct bio *bio_orig,
 				 void *data)
 {
@@ -398,13 +383,20 @@ static int map_request(struct dm_rq_target_io *tio)
 		/* The target has remapped the I/O so dispatch it */
 		trace_block_rq_remap(clone, disk_devt(dm_disk(md)),
 				     blk_rq_pos(rq));
-		ret = dm_dispatch_clone_request(clone, rq);
-		if (ret == BLK_STS_RESOURCE || ret == BLK_STS_DEV_RESOURCE) {
+		ret = blk_insert_cloned_request(clone);
+		switch (ret) {
+		case BLK_STS_OK:
+			break;
+		case BLK_STS_RESOURCE:
+		case BLK_STS_DEV_RESOURCE:
 			blk_rq_unprep_clone(clone);
 			blk_mq_cleanup_rq(clone);
 			tio->ti->type->release_clone_rq(clone, &tio->info);
 			tio->clone = NULL;
 			return DM_MAPIO_REQUEUE;
+		default:
+			/* must complete clone in terms of original request */
+			dm_complete_request(rq, ret);
 		}
 		break;
 	case DM_MAPIO_REQUEUE:
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index dcf34c6b05ad..0d336b5ec571 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -141,11 +141,6 @@ struct dm_snapshot {
 	 * for them to be committed.
 	 */
 	struct bio_list bios_queued_during_merge;
-
-	/*
-	 * Flush data after merge.
-	 */
-	struct bio flush_bio;
 };
 
 /*
@@ -1127,17 +1122,6 @@ shut:
 
 static void error_bios(struct bio *bio);
 
-static int flush_data(struct dm_snapshot *s)
-{
-	struct bio *flush_bio = &s->flush_bio;
-
-	bio_reset(flush_bio);
-	bio_set_dev(flush_bio, s->origin->bdev);
-	flush_bio->bi_opf = REQ_OP_WRITE | REQ_PREFLUSH;
-
-	return submit_bio_wait(flush_bio);
-}
-
 static void merge_callback(int read_err, unsigned long write_err, void *context)
 {
 	struct dm_snapshot *s = context;
@@ -1151,7 +1135,7 @@ static void merge_callback(int read_err, unsigned long write_err, void *context)
 		goto shut;
 	}
 
-	if (flush_data(s) < 0) {
+	if (blkdev_issue_flush(s->origin->bdev) < 0) {
 		DMERR("Flush after merge failed: shutting down merge");
 		goto shut;
 	}
@@ -1340,7 +1324,6 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	s->first_merging_chunk = 0;
 	s->num_merging_chunks = 0;
 	bio_list_init(&s->bios_queued_during_merge);
-	bio_init(&s->flush_bio, NULL, 0);
 
 	/* Allocate hash table for COW data */
 	if (init_hash_tables(s)) {
@@ -1528,8 +1511,6 @@ static void snapshot_dtr(struct dm_target *ti)
 
 	dm_exception_store_destroy(s->store);
 
-	bio_uninit(&s->flush_bio);
-
 	dm_put_device(ti, s->cow);
 
 	dm_put_device(ti, s->origin);
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index ec119d2422d5..f4234d615aa1 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -282,8 +282,6 @@ struct pool {
 	struct dm_bio_prison_cell **cell_sort_array;
 
 	mempool_t mapping_pool;
-
-	struct bio flush_bio;
 };
 
 static void metadata_operation_failed(struct pool *pool, const char *op, int r);
@@ -1179,25 +1177,17 @@ static void process_prepared_discard_passdown_pt1(struct dm_thin_new_mapping *m)
 		return;
 	}
 
-	discard_parent = bio_alloc(GFP_NOIO, 1);
-	if (!discard_parent) {
-		DMWARN("%s: unable to allocate top level discard bio for passdown. Skipping passdown.",
-		       dm_device_name(tc->pool->pool_md));
-		queue_passdown_pt2(m);
-
-	} else {
-		discard_parent->bi_end_io = passdown_endio;
-		discard_parent->bi_private = m;
-
-		if (m->maybe_shared)
-			passdown_double_checking_shared_status(m, discard_parent);
-		else {
-			struct discard_op op;
-
-			begin_discard(&op, tc, discard_parent);
-			r = issue_discard(&op, m->data_block, data_end);
-			end_discard(&op, r);
-		}
+	discard_parent = bio_alloc(NULL, 1, 0, GFP_NOIO);
+	discard_parent->bi_end_io = passdown_endio;
+	discard_parent->bi_private = m;
+ 	if (m->maybe_shared)
+ 		passdown_double_checking_shared_status(m, discard_parent);
+ 	else {
+		struct discard_op op;
+
+		begin_discard(&op, tc, discard_parent);
+		r = issue_discard(&op, m->data_block, data_end);
+		end_discard(&op, r);
 	}
 }
 
@@ -2913,7 +2903,6 @@ static void __pool_destroy(struct pool *pool)
 	if (pool->next_mapping)
 		mempool_free(pool->next_mapping, &pool->mapping_pool);
 	mempool_exit(&pool->mapping_pool);
-	bio_uninit(&pool->flush_bio);
 	dm_deferred_set_destroy(pool->shared_read_ds);
 	dm_deferred_set_destroy(pool->all_io_ds);
 	kfree(pool);
@@ -2994,7 +2983,6 @@ static struct pool *pool_create(struct mapped_device *pool_md,
 	pool->low_water_triggered = false;
 	pool->suspended = true;
 	pool->out_of_data_space = false;
-	bio_init(&pool->flush_bio, NULL, 0);
 
 	pool->shared_read_ds = dm_deferred_set_create();
 	if (!pool->shared_read_ds) {
@@ -3201,13 +3189,8 @@ static void metadata_low_callback(void *context)
 static int metadata_pre_commit_callback(void *context)
 {
 	struct pool *pool = context;
-	struct bio *flush_bio = &pool->flush_bio;
-
-	bio_reset(flush_bio);
-	bio_set_dev(flush_bio, pool->data_dev);
-	flush_bio->bi_opf = REQ_OP_WRITE | REQ_PREFLUSH;
 
-	return submit_bio_wait(flush_bio);
+	return blkdev_issue_flush(pool->data_dev);
 }
 
 static sector_t get_dev_size(struct block_device *bdev)
diff --git a/drivers/md/dm-writecache.c b/drivers/md/dm-writecache.c
index 4f31591d2d25..5630b470ba42 100644
--- a/drivers/md/dm-writecache.c
+++ b/drivers/md/dm-writecache.c
@@ -1821,11 +1821,11 @@ static void __writecache_writeback_pmem(struct dm_writecache *wc, struct writeba
 
 		max_pages = e->wc_list_contiguous;
 
-		bio = bio_alloc_bioset(GFP_NOIO, max_pages, &wc->bio_set);
+		bio = bio_alloc_bioset(wc->dev->bdev, max_pages, REQ_OP_WRITE,
+				       GFP_NOIO, &wc->bio_set);
 		wb = container_of(bio, struct writeback_struct, bio);
 		wb->wc = wc;
 		bio->bi_end_io = writecache_writeback_endio;
-		bio_set_dev(bio, wc->dev->bdev);
 		bio->bi_iter.bi_sector = read_original_sector(wc, e);
 		if (max_pages <= WB_LIST_INLINE ||
 		    unlikely(!(wb->wc_list = kmalloc_array(max_pages, sizeof(struct wc_entry *),
@@ -1852,7 +1852,8 @@ static void __writecache_writeback_pmem(struct dm_writecache *wc, struct writeba
 			wb->wc_list[wb->wc_list_n++] = f;
 			e = f;
 		}
-		bio_set_op_attrs(bio, REQ_OP_WRITE, WC_MODE_FUA(wc) * REQ_FUA);
+		if (WC_MODE_FUA(wc))
+			bio->bi_opf |= REQ_FUA;
 		if (writecache_has_error(wc)) {
 			bio->bi_status = BLK_STS_IOERR;
 			bio_endio(bio);
diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c
index ee4626d08557..e5f1eb27ce2e 100644
--- a/drivers/md/dm-zoned-metadata.c
+++ b/drivers/md/dm-zoned-metadata.c
@@ -550,11 +550,8 @@ static struct dmz_mblock *dmz_get_mblock_slow(struct dmz_metadata *zmd,
 	if (!mblk)
 		return ERR_PTR(-ENOMEM);
 
-	bio = bio_alloc(GFP_NOIO, 1);
-	if (!bio) {
-		dmz_free_mblock(zmd, mblk);
-		return ERR_PTR(-ENOMEM);
-	}
+	bio = bio_alloc(dev->bdev, 1, REQ_OP_READ | REQ_META | REQ_PRIO,
+			GFP_NOIO);
 
 	spin_lock(&zmd->mblk_lock);
 
@@ -578,10 +575,8 @@ static struct dmz_mblock *dmz_get_mblock_slow(struct dmz_metadata *zmd,
 
 	/* Submit read BIO */
 	bio->bi_iter.bi_sector = dmz_blk2sect(block);
-	bio_set_dev(bio, dev->bdev);
 	bio->bi_private = mblk;
 	bio->bi_end_io = dmz_mblock_bio_end_io;
-	bio_set_op_attrs(bio, REQ_OP_READ, REQ_META | REQ_PRIO);
 	bio_add_page(bio, mblk->page, DMZ_BLOCK_SIZE, 0);
 	submit_bio(bio);
 
@@ -725,19 +720,14 @@ static int dmz_write_mblock(struct dmz_metadata *zmd, struct dmz_mblock *mblk,
 	if (dmz_bdev_is_dying(dev))
 		return -EIO;
 
-	bio = bio_alloc(GFP_NOIO, 1);
-	if (!bio) {
-		set_bit(DMZ_META_ERROR, &mblk->state);
-		return -ENOMEM;
-	}
+	bio = bio_alloc(dev->bdev, 1, REQ_OP_WRITE | REQ_META | REQ_PRIO,
+			GFP_NOIO);
 
 	set_bit(DMZ_META_WRITING, &mblk->state);
 
 	bio->bi_iter.bi_sector = dmz_blk2sect(block);
-	bio_set_dev(bio, dev->bdev);
 	bio->bi_private = mblk;
 	bio->bi_end_io = dmz_mblock_bio_end_io;
-	bio_set_op_attrs(bio, REQ_OP_WRITE, REQ_META | REQ_PRIO);
 	bio_add_page(bio, mblk->page, DMZ_BLOCK_SIZE, 0);
 	submit_bio(bio);
 
@@ -759,13 +749,9 @@ static int dmz_rdwr_block(struct dmz_dev *dev, int op,
 	if (dmz_bdev_is_dying(dev))
 		return -EIO;
 
-	bio = bio_alloc(GFP_NOIO, 1);
-	if (!bio)
-		return -ENOMEM;
-
+	bio = bio_alloc(dev->bdev, 1, op | REQ_SYNC | REQ_META | REQ_PRIO,
+			GFP_NOIO);
 	bio->bi_iter.bi_sector = dmz_blk2sect(block);
-	bio_set_dev(bio, dev->bdev);
-	bio_set_op_attrs(bio, op, REQ_SYNC | REQ_META | REQ_PRIO);
 	bio_add_page(bio, page, DMZ_BLOCK_SIZE, 0);
 	ret = submit_bio_wait(bio);
 	bio_put(bio);
diff --git a/drivers/md/dm-zoned-target.c b/drivers/md/dm-zoned-target.c
index 166c4e9d99c9..a3f6d3ef3817 100644
--- a/drivers/md/dm-zoned-target.c
+++ b/drivers/md/dm-zoned-target.c
@@ -125,11 +125,10 @@ static int dmz_submit_bio(struct dmz_target *dmz, struct dm_zone *zone,
 	if (dev->flags & DMZ_BDEV_DYING)
 		return -EIO;
 
-	clone = bio_clone_fast(bio, GFP_NOIO, &dmz->bio_set);
+	clone = bio_alloc_clone(dev->bdev, bio, GFP_NOIO, &dmz->bio_set);
 	if (!clone)
 		return -ENOMEM;
 
-	bio_set_dev(clone, dev->bdev);
 	bioctx->dev = dev;
 	clone->bi_iter.bi_sector =
 		dmz_start_sect(dmz->metadata, zone) + dmz_blk2sect(chunk_block);
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 997ace47bbd5..183ce0d6728f 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -79,10 +79,14 @@ struct clone_info {
 #define DM_IO_BIO_OFFSET \
 	(offsetof(struct dm_target_io, clone) + offsetof(struct dm_io, tio))
 
+static inline struct dm_target_io *clone_to_tio(struct bio *clone)
+{
+	return container_of(clone, struct dm_target_io, clone);
+}
+
 void *dm_per_bio_data(struct bio *bio, size_t data_size)
 {
-	struct dm_target_io *tio = container_of(bio, struct dm_target_io, clone);
-	if (!tio->inside_dm_io)
+	if (!clone_to_tio(bio)->inside_dm_io)
 		return (char *)bio - DM_TARGET_IO_BIO_OFFSET - data_size;
 	return (char *)bio - DM_IO_BIO_OFFSET - data_size;
 }
@@ -477,10 +481,7 @@ out:
 
 u64 dm_start_time_ns_from_clone(struct bio *bio)
 {
-	struct dm_target_io *tio = container_of(bio, struct dm_target_io, clone);
-	struct dm_io *io = tio->io;
-
-	return jiffies_to_nsecs(io->start_time);
+	return jiffies_to_nsecs(clone_to_tio(bio)->io->start_time);
 }
 EXPORT_SYMBOL_GPL(dm_start_time_ns_from_clone);
 
@@ -519,11 +520,9 @@ static struct dm_io *alloc_io(struct mapped_device *md, struct bio *bio)
 	struct dm_target_io *tio;
 	struct bio *clone;
 
-	clone = bio_alloc_bioset(GFP_NOIO, 0, &md->io_bs);
-	if (!clone)
-		return NULL;
+	clone = bio_alloc_clone(bio->bi_bdev, bio, GFP_NOIO, &md->io_bs);
 
-	tio = container_of(clone, struct dm_target_io, clone);
+	tio = clone_to_tio(clone);
 	tio->inside_dm_io = true;
 	tio->io = NULL;
 
@@ -545,8 +544,8 @@ static void free_io(struct mapped_device *md, struct dm_io *io)
 	bio_put(&io->tio.clone);
 }
 
-static struct dm_target_io *alloc_tio(struct clone_info *ci, struct dm_target *ti,
-				      unsigned target_bio_nr, gfp_t gfp_mask)
+static struct bio *alloc_tio(struct clone_info *ci, struct dm_target *ti,
+		unsigned target_bio_nr, unsigned *len, gfp_t gfp_mask)
 {
 	struct dm_target_io *tio;
 
@@ -554,11 +553,12 @@ static struct dm_target_io *alloc_tio(struct clone_info *ci, struct dm_target *t
 		/* the dm_target_io embedded in ci->io is available */
 		tio = &ci->io->tio;
 	} else {
-		struct bio *clone = bio_alloc_bioset(gfp_mask, 0, &ci->io->md->bs);
+		struct bio *clone = bio_alloc_clone(ci->bio->bi_bdev, ci->bio,
+						    gfp_mask, &ci->io->md->bs);
 		if (!clone)
 			return NULL;
 
-		tio = container_of(clone, struct dm_target_io, clone);
+		tio = clone_to_tio(clone);
 		tio->inside_dm_io = false;
 	}
 
@@ -566,15 +566,16 @@ static struct dm_target_io *alloc_tio(struct clone_info *ci, struct dm_target *t
 	tio->io = ci->io;
 	tio->ti = ti;
 	tio->target_bio_nr = target_bio_nr;
+	tio->len_ptr = len;
 
-	return tio;
+	return &tio->clone;
 }
 
-static void free_tio(struct dm_target_io *tio)
+static void free_tio(struct bio *clone)
 {
-	if (tio->inside_dm_io)
+	if (clone_to_tio(clone)->inside_dm_io)
 		return;
-	bio_put(&tio->clone);
+	bio_put(clone);
 }
 
 /*
@@ -879,7 +880,7 @@ static bool swap_bios_limit(struct dm_target *ti, struct bio *bio)
 static void clone_endio(struct bio *bio)
 {
 	blk_status_t error = bio->bi_status;
-	struct dm_target_io *tio = container_of(bio, struct dm_target_io, clone);
+	struct dm_target_io *tio = clone_to_tio(bio);
 	struct dm_io *io = tio->io;
 	struct mapped_device *md = tio->io->md;
 	dm_endio_fn endio = tio->ti->type->end_io;
@@ -930,7 +931,7 @@ static void clone_endio(struct bio *bio)
 		up(&md->swap_bios_semaphore);
 	}
 
-	free_tio(tio);
+	free_tio(bio);
 	dm_io_dec_pending(io, error);
 }
 
@@ -1085,7 +1086,7 @@ static int dm_dax_zero_page_range(struct dax_device *dax_dev, pgoff_t pgoff,
  */
 void dm_accept_partial_bio(struct bio *bio, unsigned n_sectors)
 {
-	struct dm_target_io *tio = container_of(bio, struct dm_target_io, clone);
+	struct dm_target_io *tio = clone_to_tio(bio);
 	unsigned bi_size = bio->bi_iter.bi_size >> SECTOR_SHIFT;
 
 	BUG_ON(bio->bi_opf & REQ_PREFLUSH);
@@ -1115,11 +1116,11 @@ static noinline void __set_swap_bios_limit(struct mapped_device *md, int latch)
 	mutex_unlock(&md->swap_bios_lock);
 }
 
-static void __map_bio(struct dm_target_io *tio)
+static void __map_bio(struct bio *clone)
 {
+	struct dm_target_io *tio = clone_to_tio(clone);
 	int r;
 	sector_t sector;
-	struct bio *clone = &tio->clone;
 	struct dm_io *io = tio->io;
 	struct dm_target *ti = tio->ti;
 
@@ -1164,7 +1165,7 @@ static void __map_bio(struct dm_target_io *tio)
 			struct mapped_device *md = io->md;
 			up(&md->swap_bios_semaphore);
 		}
-		free_tio(tio);
+		free_tio(clone);
 		dm_io_dec_pending(io, BLK_STS_IOERR);
 		break;
 	case DM_MAPIO_REQUEUE:
@@ -1172,7 +1173,7 @@ static void __map_bio(struct dm_target_io *tio)
 			struct mapped_device *md = io->md;
 			up(&md->swap_bios_semaphore);
 		}
-		free_tio(tio);
+		free_tio(clone);
 		dm_io_dec_pending(io, BLK_STS_DM_REQUEUE);
 		break;
 	default:
@@ -1190,106 +1191,75 @@ static void bio_setup_sector(struct bio *bio, sector_t sector, unsigned len)
 /*
  * Creates a bio that consists of range of complete bvecs.
  */
-static int clone_bio(struct dm_target_io *tio, struct bio *bio,
-		     sector_t sector, unsigned len)
+static int __clone_and_map_data_bio(struct clone_info *ci, struct dm_target *ti,
+				    sector_t sector, unsigned *len)
 {
-	struct bio *clone = &tio->clone;
-	int r;
-
-	__bio_clone_fast(clone, bio);
-
-	r = bio_crypt_clone(clone, bio, GFP_NOIO);
-	if (r < 0)
-		return r;
-
-	if (bio_integrity(bio)) {
-		if (unlikely(!dm_target_has_integrity(tio->ti->type) &&
-			     !dm_target_passes_integrity(tio->ti->type))) {
-			DMWARN("%s: the target %s doesn't support integrity data.",
-				dm_device_name(tio->io->md),
-				tio->ti->type->name);
-			return -EIO;
-		}
-
-		r = bio_integrity_clone(clone, bio, GFP_NOIO);
-		if (r < 0)
-			return r;
-	}
+	struct bio *bio = ci->bio, *clone;
 
+	clone = alloc_tio(ci, ti, 0, len, GFP_NOIO);
 	bio_advance(clone, to_bytes(sector - clone->bi_iter.bi_sector));
-	clone->bi_iter.bi_size = to_bytes(len);
+	clone->bi_iter.bi_size = to_bytes(*len);
 
 	if (bio_integrity(bio))
 		bio_integrity_trim(clone);
 
+	__map_bio(clone);
 	return 0;
 }
 
 static void alloc_multiple_bios(struct bio_list *blist, struct clone_info *ci,
-				struct dm_target *ti, unsigned num_bios)
+				struct dm_target *ti, unsigned num_bios,
+				unsigned *len)
 {
-	struct dm_target_io *tio;
+	struct bio *bio;
 	int try;
 
-	if (!num_bios)
-		return;
-
-	if (num_bios == 1) {
-		tio = alloc_tio(ci, ti, 0, GFP_NOIO);
-		bio_list_add(blist, &tio->clone);
-		return;
-	}
-
 	for (try = 0; try < 2; try++) {
 		int bio_nr;
-		struct bio *bio;
 
 		if (try)
 			mutex_lock(&ci->io->md->table_devices_lock);
 		for (bio_nr = 0; bio_nr < num_bios; bio_nr++) {
-			tio = alloc_tio(ci, ti, bio_nr, try ? GFP_NOIO : GFP_NOWAIT);
-			if (!tio)
+			bio = alloc_tio(ci, ti, bio_nr, len,
+					try ? GFP_NOIO : GFP_NOWAIT);
+			if (!bio)
 				break;
 
-			bio_list_add(blist, &tio->clone);
+			bio_list_add(blist, bio);
 		}
 		if (try)
 			mutex_unlock(&ci->io->md->table_devices_lock);
 		if (bio_nr == num_bios)
 			return;
 
-		while ((bio = bio_list_pop(blist))) {
-			tio = container_of(bio, struct dm_target_io, clone);
-			free_tio(tio);
-		}
+		while ((bio = bio_list_pop(blist)))
+			free_tio(bio);
 	}
 }
 
-static void __clone_and_map_simple_bio(struct clone_info *ci,
-					   struct dm_target_io *tio, unsigned *len)
-{
-	struct bio *clone = &tio->clone;
-
-	tio->len_ptr = len;
-
-	__bio_clone_fast(clone, ci->bio);
-	if (len)
-		bio_setup_sector(clone, ci->sector, *len);
-	__map_bio(tio);
-}
-
 static void __send_duplicate_bios(struct clone_info *ci, struct dm_target *ti,
 				  unsigned num_bios, unsigned *len)
 {
 	struct bio_list blist = BIO_EMPTY_LIST;
-	struct bio *bio;
-	struct dm_target_io *tio;
-
-	alloc_multiple_bios(&blist, ci, ti, num_bios);
+	struct bio *clone;
 
-	while ((bio = bio_list_pop(&blist))) {
-		tio = container_of(bio, struct dm_target_io, clone);
-		__clone_and_map_simple_bio(ci, tio, len);
+	switch (num_bios) {
+	case 0:
+		break;
+	case 1:
+		clone = alloc_tio(ci, ti, 0, len, GFP_NOIO);
+		if (len)
+			bio_setup_sector(clone, ci->sector, *len);
+		__map_bio(clone);
+		break;
+	default:
+		alloc_multiple_bios(&blist, ci, ti, num_bios, len);
+		while ((clone = bio_list_pop(&blist))) {
+			if (len)
+				bio_setup_sector(clone, ci->sector, *len);
+			__map_bio(clone);
+		}
+		break;
 	}
 }
 
@@ -1304,9 +1274,8 @@ static int __send_empty_flush(struct clone_info *ci)
 	 * need to reference it after submit. It's just used as
 	 * the basis for the clone(s).
 	 */
-	bio_init(&flush_bio, NULL, 0);
-	flush_bio.bi_opf = REQ_OP_WRITE | REQ_PREFLUSH | REQ_SYNC;
-	bio_set_dev(&flush_bio, ci->io->md->disk->part0);
+	bio_init(&flush_bio, ci->io->md->disk->part0, NULL, 0,
+		 REQ_OP_WRITE | REQ_PREFLUSH | REQ_SYNC);
 
 	ci->bio = &flush_bio;
 	ci->sector_count = 0;
@@ -1319,25 +1288,6 @@ static int __send_empty_flush(struct clone_info *ci)
 	return 0;
 }
 
-static int __clone_and_map_data_bio(struct clone_info *ci, struct dm_target *ti,
-				    sector_t sector, unsigned *len)
-{
-	struct bio *bio = ci->bio;
-	struct dm_target_io *tio;
-	int r;
-
-	tio = alloc_tio(ci, ti, 0, GFP_NOIO);
-	tio->len_ptr = len;
-	r = clone_bio(tio, bio, sector, *len);
-	if (r < 0) {
-		free_tio(tio);
-		return r;
-	}
-	__map_bio(tio);
-
-	return 0;
-}
-
 static int __send_changing_extent_only(struct clone_info *ci, struct dm_target *ti,
 				       unsigned num_bios)
 {
diff --git a/drivers/md/md-faulty.c b/drivers/md/md-faulty.c
index c0dc6f2ef4a3..50ad818978a4 100644
--- a/drivers/md/md-faulty.c
+++ b/drivers/md/md-faulty.c
@@ -205,9 +205,9 @@ static bool faulty_make_request(struct mddev *mddev, struct bio *bio)
 		}
 	}
 	if (failit) {
-		struct bio *b = bio_clone_fast(bio, GFP_NOIO, &mddev->bio_set);
+		struct bio *b = bio_alloc_clone(conf->rdev->bdev, bio, GFP_NOIO,
+						&mddev->bio_set);
 
-		bio_set_dev(b, conf->rdev->bdev);
 		b->bi_private = bio;
 		b->bi_end_io = faulty_fail;
 		bio = b;
diff --git a/drivers/md/md-multipath.c b/drivers/md/md-multipath.c
index e7d6486f090f..3081a936350d 100644
--- a/drivers/md/md-multipath.c
+++ b/drivers/md/md-multipath.c
@@ -121,11 +121,9 @@ static bool multipath_make_request(struct mddev *mddev, struct bio * bio)
 	}
 	multipath = conf->multipaths + mp_bh->path;
 
-	bio_init(&mp_bh->bio, NULL, 0);
-	__bio_clone_fast(&mp_bh->bio, bio);
+	bio_init_clone(multipath->rdev->bdev, &mp_bh->bio, bio, GFP_NOIO);
 
 	mp_bh->bio.bi_iter.bi_sector += multipath->rdev->data_offset;
-	bio_set_dev(&mp_bh->bio, multipath->rdev->bdev);
 	mp_bh->bio.bi_opf |= REQ_FAILFAST_TRANSPORT;
 	mp_bh->bio.bi_end_io = multipath_end_request;
 	mp_bh->bio.bi_private = mp_bh;
@@ -299,7 +297,6 @@ static void multipathd(struct md_thread *thread)
 
 	md_check_recovery(mddev);
 	for (;;) {
-		char b[BDEVNAME_SIZE];
 		spin_lock_irqsave(&conf->device_lock, flags);
 		if (list_empty(head))
 			break;
@@ -311,13 +308,13 @@ static void multipathd(struct md_thread *thread)
 		bio->bi_iter.bi_sector = mp_bh->master_bio->bi_iter.bi_sector;
 
 		if ((mp_bh->path = multipath_map (conf))<0) {
-			pr_err("multipath: %s: unrecoverable IO read error for block %llu\n",
-			       bio_devname(bio, b),
+			pr_err("multipath: %pg: unrecoverable IO read error for block %llu\n",
+			       bio->bi_bdev,
 			       (unsigned long long)bio->bi_iter.bi_sector);
 			multipath_end_bh_io(mp_bh, BLK_STS_IOERR);
 		} else {
-			pr_err("multipath: %s: redirecting sector %llu to another IO path\n",
-			       bio_devname(bio, b),
+			pr_err("multipath: %pg: redirecting sector %llu to another IO path\n",
+			       bio->bi_bdev,
 			       (unsigned long long)bio->bi_iter.bi_sector);
 			*bio = *(mp_bh->master_bio);
 			bio->bi_iter.bi_sector +=
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 4d38bd7dadd6..f210a55af201 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -562,11 +562,11 @@ static void submit_flushes(struct work_struct *ws)
 			atomic_inc(&rdev->nr_pending);
 			atomic_inc(&rdev->nr_pending);
 			rcu_read_unlock();
-			bi = bio_alloc_bioset(GFP_NOIO, 0, &mddev->bio_set);
+			bi = bio_alloc_bioset(rdev->bdev, 0,
+					      REQ_OP_WRITE | REQ_PREFLUSH,
+					      GFP_NOIO, &mddev->bio_set);
 			bi->bi_end_io = md_end_flush;
 			bi->bi_private = rdev;
-			bio_set_dev(bi, rdev->bdev);
-			bi->bi_opf = REQ_OP_WRITE | REQ_PREFLUSH;
 			atomic_inc(&mddev->flush_pending);
 			submit_bio(bi);
 			rcu_read_lock();
@@ -955,7 +955,6 @@ void md_super_write(struct mddev *mddev, struct md_rdev *rdev,
 	 * If an error occurred, call md_error
 	 */
 	struct bio *bio;
-	int ff = 0;
 
 	if (!page)
 		return;
@@ -963,11 +962,13 @@ void md_super_write(struct mddev *mddev, struct md_rdev *rdev,
 	if (test_bit(Faulty, &rdev->flags))
 		return;
 
-	bio = bio_alloc_bioset(GFP_NOIO, 1, &mddev->sync_set);
+	bio = bio_alloc_bioset(rdev->meta_bdev ? rdev->meta_bdev : rdev->bdev,
+			       1,
+			       REQ_OP_WRITE | REQ_SYNC | REQ_PREFLUSH | REQ_FUA,
+			       GFP_NOIO, &mddev->sync_set);
 
 	atomic_inc(&rdev->nr_pending);
 
-	bio_set_dev(bio, rdev->meta_bdev ? rdev->meta_bdev : rdev->bdev);
 	bio->bi_iter.bi_sector = sector;
 	bio_add_page(bio, page, size, 0);
 	bio->bi_private = rdev;
@@ -976,8 +977,7 @@ void md_super_write(struct mddev *mddev, struct md_rdev *rdev,
 	if (test_bit(MD_FAILFAST_SUPPORTED, &mddev->flags) &&
 	    test_bit(FailFast, &rdev->flags) &&
 	    !test_bit(LastDev, &rdev->flags))
-		ff = MD_FAILFAST;
-	bio->bi_opf = REQ_OP_WRITE | REQ_SYNC | REQ_PREFLUSH | REQ_FUA | ff;
+		bio->bi_opf |= MD_FAILFAST;
 
 	atomic_inc(&mddev->pending_writes);
 	submit_bio(bio);
@@ -998,13 +998,11 @@ int sync_page_io(struct md_rdev *rdev, sector_t sector, int size,
 	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_init(&bio, rdev->meta_bdev, &bvec, 1, op | op_flags);
 	else
-		bio_set_dev(&bio, rdev->bdev);
-	bio.bi_opf = op | op_flags;
+		bio_init(&bio, rdev->bdev, &bvec, 1, op | op_flags);
+
 	if (metadata_op)
 		bio.bi_iter.bi_sector = sector + rdev->sb_start;
 	else if (rdev->mddev->reshape_position != MaxSector &&
@@ -8636,13 +8634,14 @@ static void md_end_io_acct(struct bio *bio)
  */
 void md_account_bio(struct mddev *mddev, struct bio **bio)
 {
+	struct block_device *bdev = (*bio)->bi_bdev;
 	struct md_io_acct *md_io_acct;
 	struct bio *clone;
 
-	if (!blk_queue_io_stat((*bio)->bi_bdev->bd_disk->queue))
+	if (!blk_queue_io_stat(bdev->bd_disk->queue))
 		return;
 
-	clone = bio_clone_fast(*bio, GFP_NOIO, &mddev->io_acct_set);
+	clone = bio_alloc_clone(bdev, *bio, GFP_NOIO, &mddev->io_acct_set);
 	md_io_acct = container_of(clone, struct md_io_acct, bio_clone);
 	md_io_acct->orig_bio = *bio;
 	md_io_acct->start_time = bio_start_io_acct(*bio);
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index e2d8acb1e988..03477e971699 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1126,7 +1126,8 @@ static void alloc_behind_master_bio(struct r1bio *r1_bio,
 	int i = 0;
 	struct bio *behind_bio = NULL;
 
-	behind_bio = bio_alloc_bioset(GFP_NOIO, vcnt, &r1_bio->mddev->bio_set);
+	behind_bio = bio_alloc_bioset(NULL, vcnt, 0, GFP_NOIO,
+				      &r1_bio->mddev->bio_set);
 	if (!behind_bio)
 		return;
 
@@ -1319,13 +1320,13 @@ static void raid1_read_request(struct mddev *mddev, struct bio *bio,
 	if (!r1bio_existed && blk_queue_io_stat(bio->bi_bdev->bd_disk->queue))
 		r1_bio->start_time = bio_start_io_acct(bio);
 
-	read_bio = bio_clone_fast(bio, gfp, &mddev->bio_set);
+	read_bio = bio_alloc_clone(mirror->rdev->bdev, bio, gfp,
+				   &mddev->bio_set);
 
 	r1_bio->bios[rdisk] = read_bio;
 
 	read_bio->bi_iter.bi_sector = r1_bio->sector +
 		mirror->rdev->data_offset;
-	bio_set_dev(read_bio, mirror->rdev->bdev);
 	read_bio->bi_end_io = raid1_end_read_request;
 	bio_set_op_attrs(read_bio, op, do_sync);
 	if (test_bit(FailFast, &mirror->rdev->flags) &&
@@ -1545,24 +1546,25 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio,
 			first_clone = 0;
 		}
 
-		if (r1_bio->behind_master_bio)
-			mbio = bio_clone_fast(r1_bio->behind_master_bio,
-					      GFP_NOIO, &mddev->bio_set);
-		else
-			mbio = bio_clone_fast(bio, GFP_NOIO, &mddev->bio_set);
-
 		if (r1_bio->behind_master_bio) {
+			mbio = bio_alloc_clone(rdev->bdev,
+					       r1_bio->behind_master_bio,
+					       GFP_NOIO, &mddev->bio_set);
 			if (test_bit(CollisionCheck, &rdev->flags))
 				wait_for_serialization(rdev, r1_bio);
 			if (test_bit(WriteMostly, &rdev->flags))
 				atomic_inc(&r1_bio->behind_remaining);
-		} else if (mddev->serialize_policy)
-			wait_for_serialization(rdev, r1_bio);
+		} else {
+			mbio = bio_alloc_clone(rdev->bdev, bio, GFP_NOIO,
+					       &mddev->bio_set);
+
+			if (mddev->serialize_policy)
+				wait_for_serialization(rdev, r1_bio);
+		}
 
 		r1_bio->bios[i] = mbio;
 
 		mbio->bi_iter.bi_sector	= (r1_bio->sector + rdev->data_offset);
-		bio_set_dev(mbio, rdev->bdev);
 		mbio->bi_end_io	= raid1_end_write_request;
 		mbio->bi_opf = bio_op(bio) | (bio->bi_opf & (REQ_SYNC | REQ_FUA));
 		if (test_bit(FailFast, &rdev->flags) &&
@@ -2070,15 +2072,14 @@ static int fix_sync_read_error(struct r1bio *r1_bio)
 		} while (!success && d != r1_bio->read_disk);
 
 		if (!success) {
-			char b[BDEVNAME_SIZE];
 			int abort = 0;
 			/* Cannot read from anywhere, this block is lost.
 			 * Record a bad block on each device.  If that doesn't
 			 * work just disable and interrupt the recovery.
 			 * Don't fail devices as that won't really help.
 			 */
-			pr_crit_ratelimited("md/raid1:%s: %s: unrecoverable I/O read error for block %llu\n",
-					    mdname(mddev), bio_devname(bio, b),
+			pr_crit_ratelimited("md/raid1:%s: %pg: unrecoverable I/O read error for block %llu\n",
+					    mdname(mddev), bio->bi_bdev,
 					    (unsigned long long)r1_bio->sector);
 			for (d = 0; d < conf->raid_disks * 2; d++) {
 				rdev = conf->mirrors[d].rdev;
@@ -2165,11 +2166,10 @@ static void process_checks(struct r1bio *r1_bio)
 			continue;
 		/* fixup the bio for reuse, but preserve errno */
 		status = b->bi_status;
-		bio_reset(b);
+		bio_reset(b, conf->mirrors[i].rdev->bdev, REQ_OP_READ);
 		b->bi_status = status;
 		b->bi_iter.bi_sector = r1_bio->sector +
 			conf->mirrors[i].rdev->data_offset;
-		bio_set_dev(b, conf->mirrors[i].rdev->bdev);
 		b->bi_end_io = end_sync_read;
 		rp->raid_bio = r1_bio;
 		b->bi_private = rp;
@@ -2416,12 +2416,12 @@ static int narrow_write_error(struct r1bio *r1_bio, int i)
 		/* Write at 'sector' for 'sectors'*/
 
 		if (test_bit(R1BIO_BehindIO, &r1_bio->state)) {
-			wbio = bio_clone_fast(r1_bio->behind_master_bio,
-					      GFP_NOIO,
-					      &mddev->bio_set);
+			wbio = bio_alloc_clone(rdev->bdev,
+					       r1_bio->behind_master_bio,
+					       GFP_NOIO, &mddev->bio_set);
 		} else {
-			wbio = bio_clone_fast(r1_bio->master_bio, GFP_NOIO,
-					      &mddev->bio_set);
+			wbio = bio_alloc_clone(rdev->bdev, r1_bio->master_bio,
+					       GFP_NOIO, &mddev->bio_set);
 		}
 
 		bio_set_op_attrs(wbio, REQ_OP_WRITE, 0);
@@ -2430,7 +2430,6 @@ static int narrow_write_error(struct r1bio *r1_bio, int i)
 
 		bio_trim(wbio, sector - r1_bio->sector, sectors);
 		wbio->bi_iter.bi_sector += rdev->data_offset;
-		bio_set_dev(wbio, rdev->bdev);
 
 		if (submit_bio_wait(wbio) < 0)
 			/* failure! */
@@ -2650,7 +2649,7 @@ static struct r1bio *raid1_alloc_init_r1buf(struct r1conf *conf)
 	for (i = conf->poolinfo->raid_disks; i--; ) {
 		bio = r1bio->bios[i];
 		rps = bio->bi_private;
-		bio_reset(bio);
+		bio_reset(bio, NULL, 0);
 		bio->bi_private = rps;
 	}
 	r1bio->master_bio = NULL;
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 2b969f70a31f..5dd2e17e1d0e 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1208,14 +1208,13 @@ static void raid10_read_request(struct mddev *mddev, struct bio *bio,
 
 	if (blk_queue_io_stat(bio->bi_bdev->bd_disk->queue))
 		r10_bio->start_time = bio_start_io_acct(bio);
-	read_bio = bio_clone_fast(bio, gfp, &mddev->bio_set);
+	read_bio = bio_alloc_clone(rdev->bdev, bio, gfp, &mddev->bio_set);
 
 	r10_bio->devs[slot].bio = read_bio;
 	r10_bio->devs[slot].rdev = rdev;
 
 	read_bio->bi_iter.bi_sector = r10_bio->devs[slot].addr +
 		choose_data_offset(r10_bio, rdev);
-	bio_set_dev(read_bio, rdev->bdev);
 	read_bio->bi_end_io = raid10_end_read_request;
 	bio_set_op_attrs(read_bio, op, do_sync);
 	if (test_bit(FailFast, &rdev->flags) &&
@@ -1255,7 +1254,7 @@ static void raid10_write_one_disk(struct mddev *mddev, struct r10bio *r10_bio,
 	} else
 		rdev = conf->mirrors[devnum].rdev;
 
-	mbio = bio_clone_fast(bio, GFP_NOIO, &mddev->bio_set);
+	mbio = bio_alloc_clone(rdev->bdev, bio, GFP_NOIO, &mddev->bio_set);
 	if (replacement)
 		r10_bio->devs[n_copy].repl_bio = mbio;
 	else
@@ -1263,7 +1262,6 @@ static void raid10_write_one_disk(struct mddev *mddev, struct r10bio *r10_bio,
 
 	mbio->bi_iter.bi_sector	= (r10_bio->devs[n_copy].addr +
 				   choose_data_offset(r10_bio, rdev));
-	bio_set_dev(mbio, rdev->bdev);
 	mbio->bi_end_io	= raid10_end_write_request;
 	bio_set_op_attrs(mbio, op, do_sync | do_fua);
 	if (!replacement && test_bit(FailFast,
@@ -1812,7 +1810,8 @@ retry_discard:
 		 */
 		if (r10_bio->devs[disk].bio) {
 			struct md_rdev *rdev = conf->mirrors[disk].rdev;
-			mbio = bio_clone_fast(bio, GFP_NOIO, &mddev->bio_set);
+			mbio = bio_alloc_clone(bio->bi_bdev, bio, GFP_NOIO,
+					       &mddev->bio_set);
 			mbio->bi_end_io = raid10_end_discard_request;
 			mbio->bi_private = r10_bio;
 			r10_bio->devs[disk].bio = mbio;
@@ -1825,7 +1824,8 @@ retry_discard:
 		}
 		if (r10_bio->devs[disk].repl_bio) {
 			struct md_rdev *rrdev = conf->mirrors[disk].replacement;
-			rbio = bio_clone_fast(bio, GFP_NOIO, &mddev->bio_set);
+			rbio = bio_alloc_clone(bio->bi_bdev, bio, GFP_NOIO,
+					       &mddev->bio_set);
 			rbio->bi_end_io = raid10_end_discard_request;
 			rbio->bi_private = r10_bio;
 			r10_bio->devs[disk].repl_bio = rbio;
@@ -2422,7 +2422,7 @@ static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio)
 		 * bi_vecs, as the read request might have corrupted these
 		 */
 		rp = get_resync_pages(tbio);
-		bio_reset(tbio);
+		bio_reset(tbio, conf->mirrors[d].rdev->bdev, REQ_OP_WRITE);
 
 		md_bio_reset_resync_pages(tbio, rp, fbio->bi_iter.bi_size);
 
@@ -2430,7 +2430,6 @@ static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio)
 		tbio->bi_private = rp;
 		tbio->bi_iter.bi_sector = r10_bio->devs[i].addr;
 		tbio->bi_end_io = end_sync_write;
-		bio_set_op_attrs(tbio, REQ_OP_WRITE, 0);
 
 		bio_copy_data(tbio, fbio);
 
@@ -2441,7 +2440,6 @@ static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio)
 		if (test_bit(FailFast, &conf->mirrors[d].rdev->flags))
 			tbio->bi_opf |= MD_FAILFAST;
 		tbio->bi_iter.bi_sector += conf->mirrors[d].rdev->data_offset;
-		bio_set_dev(tbio, conf->mirrors[d].rdev->bdev);
 		submit_bio_noacct(tbio);
 	}
 
@@ -2894,12 +2892,12 @@ static int narrow_write_error(struct r10bio *r10_bio, int i)
 		if (sectors > sect_to_write)
 			sectors = sect_to_write;
 		/* Write at 'sector' for 'sectors' */
-		wbio = bio_clone_fast(bio, GFP_NOIO, &mddev->bio_set);
+		wbio = bio_alloc_clone(rdev->bdev, bio, GFP_NOIO,
+				       &mddev->bio_set);
 		bio_trim(wbio, sector - bio->bi_iter.bi_sector, sectors);
 		wsector = r10_bio->devs[i].addr + (sector - r10_bio->sector);
 		wbio->bi_iter.bi_sector = wsector +
 				   choose_data_offset(r10_bio, rdev);
-		bio_set_dev(wbio, rdev->bdev);
 		bio_set_op_attrs(wbio, REQ_OP_WRITE, 0);
 
 		if (submit_bio_wait(wbio) < 0)
@@ -3160,12 +3158,12 @@ static struct r10bio *raid10_alloc_init_r10buf(struct r10conf *conf)
 	for (i = 0; i < nalloc; i++) {
 		bio = r10bio->devs[i].bio;
 		rp = bio->bi_private;
-		bio_reset(bio);
+		bio_reset(bio, NULL, 0);
 		bio->bi_private = rp;
 		bio = r10bio->devs[i].repl_bio;
 		if (bio) {
 			rp = bio->bi_private;
-			bio_reset(bio);
+			bio_reset(bio, NULL, 0);
 			bio->bi_private = rp;
 		}
 	}
@@ -4892,14 +4890,12 @@ read_more:
 		return sectors_done;
 	}
 
-	read_bio = bio_alloc_bioset(GFP_KERNEL, RESYNC_PAGES, &mddev->bio_set);
-
-	bio_set_dev(read_bio, rdev->bdev);
+	read_bio = bio_alloc_bioset(rdev->bdev, RESYNC_PAGES, REQ_OP_READ,
+				    GFP_KERNEL, &mddev->bio_set);
 	read_bio->bi_iter.bi_sector = (r10_bio->devs[r10_bio->read_slot].addr
 			       + rdev->data_offset);
 	read_bio->bi_private = r10_bio;
 	read_bio->bi_end_io = end_reshape_read;
-	bio_set_op_attrs(read_bio, REQ_OP_READ, 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-cache.c b/drivers/md/raid5-cache.c
index 0b5dcaabbc15..86e2bb89d9c7 100644
--- a/drivers/md/raid5-cache.c
+++ b/drivers/md/raid5-cache.c
@@ -735,10 +735,9 @@ static void r5l_submit_current_io(struct r5l_log *log)
 
 static struct bio *r5l_bio_alloc(struct r5l_log *log)
 {
-	struct bio *bio = bio_alloc_bioset(GFP_NOIO, BIO_MAX_VECS, &log->bs);
+	struct bio *bio = bio_alloc_bioset(log->rdev->bdev, BIO_MAX_VECS,
+					   REQ_OP_WRITE, GFP_NOIO, &log->bs);
 
-	bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
-	bio_set_dev(bio, log->rdev->bdev);
 	bio->bi_iter.bi_sector = log->rdev->data_offset + log->log_start;
 
 	return bio;
@@ -1302,10 +1301,9 @@ void r5l_flush_stripe_to_raid(struct r5l_log *log)
 
 	if (!do_flush)
 		return;
-	bio_reset(&log->flush_bio);
-	bio_set_dev(&log->flush_bio, log->rdev->bdev);
+	bio_reset(&log->flush_bio, log->rdev->bdev,
+		  REQ_OP_WRITE | REQ_PREFLUSH);
 	log->flush_bio.bi_end_io = r5l_log_flush_endio;
-	log->flush_bio.bi_opf = REQ_OP_WRITE | REQ_PREFLUSH;
 	submit_bio(&log->flush_bio);
 }
 
@@ -1634,7 +1632,8 @@ static int r5l_recovery_allocate_ra_pool(struct r5l_log *log,
 {
 	struct page *page;
 
-	ctx->ra_bio = bio_alloc_bioset(GFP_KERNEL, BIO_MAX_VECS, &log->bs);
+	ctx->ra_bio = bio_alloc_bioset(NULL, BIO_MAX_VECS, 0, GFP_KERNEL,
+				       &log->bs);
 	if (!ctx->ra_bio)
 		return -ENOMEM;
 
@@ -1678,9 +1677,7 @@ static int r5l_recovery_fetch_ra_pool(struct r5l_log *log,
 				      struct r5l_recovery_ctx *ctx,
 				      sector_t offset)
 {
-	bio_reset(ctx->ra_bio);
-	bio_set_dev(ctx->ra_bio, log->rdev->bdev);
-	bio_set_op_attrs(ctx->ra_bio, REQ_OP_READ, 0);
+	bio_reset(ctx->ra_bio, log->rdev->bdev, REQ_OP_READ);
 	ctx->ra_bio->bi_iter.bi_sector = log->rdev->data_offset + offset;
 
 	ctx->valid_pages = 0;
@@ -3108,7 +3105,7 @@ int r5l_init_log(struct r5conf *conf, struct md_rdev *rdev)
 	INIT_LIST_HEAD(&log->io_end_ios);
 	INIT_LIST_HEAD(&log->flushing_ios);
 	INIT_LIST_HEAD(&log->finished_ios);
-	bio_init(&log->flush_bio, NULL, 0);
+	bio_init(&log->flush_bio, NULL, NULL, 0, 0);
 
 	log->io_kc = KMEM_CACHE(r5l_io_unit, 0);
 	if (!log->io_kc)
diff --git a/drivers/md/raid5-ppl.c b/drivers/md/raid5-ppl.c
index 4ab417915d7f..bbb5673104ec 100644
--- a/drivers/md/raid5-ppl.c
+++ b/drivers/md/raid5-ppl.c
@@ -250,7 +250,7 @@ static struct ppl_io_unit *ppl_new_iounit(struct ppl_log *log,
 	INIT_LIST_HEAD(&io->stripe_list);
 	atomic_set(&io->pending_stripes, 0);
 	atomic_set(&io->pending_flushes, 0);
-	bio_init(&io->bio, io->biovec, PPL_IO_INLINE_BVECS);
+	bio_init(&io->bio, NULL, io->biovec, PPL_IO_INLINE_BVECS, 0);
 
 	pplhdr = page_address(io->header_page);
 	clear_page(pplhdr);
@@ -416,12 +416,10 @@ static void ppl_log_endio(struct bio *bio)
 
 static void ppl_submit_iounit_bio(struct ppl_io_unit *io, struct bio *bio)
 {
-	char b[BDEVNAME_SIZE];
-
-	pr_debug("%s: seq: %llu size: %u sector: %llu dev: %s\n",
+	pr_debug("%s: seq: %llu size: %u sector: %llu dev: %pg\n",
 		 __func__, io->seq, bio->bi_iter.bi_size,
 		 (unsigned long long)bio->bi_iter.bi_sector,
-		 bio_devname(bio, b));
+		 bio->bi_bdev);
 
 	submit_bio(bio);
 }
@@ -496,11 +494,10 @@ static void ppl_submit_iounit(struct ppl_io_unit *io)
 		if (!bio_add_page(bio, sh->ppl_page, PAGE_SIZE, 0)) {
 			struct bio *prev = bio;
 
-			bio = bio_alloc_bioset(GFP_NOIO, BIO_MAX_VECS,
+			bio = bio_alloc_bioset(prev->bi_bdev, BIO_MAX_VECS,
+					       prev->bi_opf, GFP_NOIO,
 					       &ppl_conf->bs);
-			bio->bi_opf = prev->bi_opf;
 			bio->bi_write_hint = prev->bi_write_hint;
-			bio_copy_dev(bio, prev);
 			bio->bi_iter.bi_sector = bio_end_sector(prev);
 			bio_add_page(bio, sh->ppl_page, PAGE_SIZE, 0);
 
@@ -590,9 +587,8 @@ static void ppl_flush_endio(struct bio *bio)
 	struct ppl_log *log = io->log;
 	struct ppl_conf *ppl_conf = log->ppl_conf;
 	struct r5conf *conf = ppl_conf->mddev->private;
-	char b[BDEVNAME_SIZE];
 
-	pr_debug("%s: dev: %s\n", __func__, bio_devname(bio, b));
+	pr_debug("%s: dev: %pg\n", __func__, bio->bi_bdev);
 
 	if (bio->bi_status) {
 		struct md_rdev *rdev;
@@ -635,16 +631,14 @@ static void ppl_do_flush(struct ppl_io_unit *io)
 
 		if (bdev) {
 			struct bio *bio;
-			char b[BDEVNAME_SIZE];
 
-			bio = bio_alloc_bioset(GFP_NOIO, 0, &ppl_conf->flush_bs);
-			bio_set_dev(bio, bdev);
+			bio = bio_alloc_bioset(bdev, 0, GFP_NOIO,
+					       REQ_OP_WRITE | REQ_PREFLUSH,
+					       &ppl_conf->flush_bs);
 			bio->bi_private = io;
-			bio->bi_opf = REQ_OP_WRITE | REQ_PREFLUSH;
 			bio->bi_end_io = ppl_flush_endio;
 
-			pr_debug("%s: dev: %s\n", __func__,
-				 bio_devname(bio, b));
+			pr_debug("%s: dev: %ps\n", __func__, bio->bi_bdev);
 
 			submit_bio(bio);
 			flushed_disks++;
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index ffe720c73b0a..8891aaba6596 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -2310,8 +2310,8 @@ static struct stripe_head *alloc_stripe(struct kmem_cache *sc, gfp_t gfp,
 		for (i = 0; i < disks; i++) {
 			struct r5dev *dev = &sh->dev[i];
 
-			bio_init(&dev->req, &dev->vec, 1);
-			bio_init(&dev->rreq, &dev->rvec, 1);
+			bio_init(&dev->req, NULL, &dev->vec, 1, 0);
+			bio_init(&dev->rreq, NULL, &dev->rvec, 1, 0);
 		}
 
 		if (raid5_has_ppl(conf)) {
@@ -2677,7 +2677,7 @@ static void raid5_end_read_request(struct bio * bi)
 		(unsigned long long)sh->sector, i, atomic_read(&sh->count),
 		bi->bi_status);
 	if (i == disks) {
-		bio_reset(bi);
+		bio_reset(bi, NULL, 0);
 		BUG();
 		return;
 	}
@@ -2785,7 +2785,7 @@ static void raid5_end_read_request(struct bio * bi)
 		}
 	}
 	rdev_dec_pending(rdev, conf->mddev);
-	bio_reset(bi);
+	bio_reset(bi, NULL, 0);
 	clear_bit(R5_LOCKED, &sh->dev[i].flags);
 	set_bit(STRIPE_HANDLE, &sh->state);
 	raid5_release_stripe(sh);
@@ -2823,7 +2823,7 @@ static void raid5_end_write_request(struct bio *bi)
 		(unsigned long long)sh->sector, i, atomic_read(&sh->count),
 		bi->bi_status);
 	if (i == disks) {
-		bio_reset(bi);
+		bio_reset(bi, NULL, 0);
 		BUG();
 		return;
 	}
@@ -2860,7 +2860,7 @@ static void raid5_end_write_request(struct bio *bi)
 	if (sh->batch_head && bi->bi_status && !replacement)
 		set_bit(STRIPE_BATCH_ERR, &sh->batch_head->state);
 
-	bio_reset(bi);
+	bio_reset(bi, NULL, 0);
 	if (!test_and_clear_bit(R5_DOUBLE_LOCKED, &sh->dev[i].flags))
 		clear_bit(R5_LOCKED, &sh->dev[i].flags);
 	set_bit(STRIPE_HANDLE, &sh->state);
@@ -5438,14 +5438,14 @@ static int raid5_read_one_chunk(struct mddev *mddev, struct bio *raid_bio)
 		return 0;
 	}
 
-	align_bio = bio_clone_fast(raid_bio, GFP_NOIO, &mddev->io_acct_set);
+	align_bio = bio_alloc_clone(rdev->bdev, raid_bio, GFP_NOIO,
+				    &mddev->io_acct_set);
 	md_io_acct = container_of(align_bio, struct md_io_acct, bio_clone);
 	raid_bio->bi_next = (void *)rdev;
 	if (blk_queue_io_stat(raid_bio->bi_bdev->bd_disk->queue))
 		md_io_acct->start_time = bio_start_io_acct(raid_bio);
 	md_io_acct->orig_bio = raid_bio;
 
-	bio_set_dev(align_bio, rdev->bdev);
 	align_bio->bi_end_io = raid5_align_endio;
 	align_bio->bi_private = md_io_acct;
 	align_bio->bi_iter.bi_sector = sector;