diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index 5bf0c9d..dc43254 100644
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c
@@ -1070,7 +1070,7 @@ aoe_end_request(struct aoedev *d, struct request *rq, int fastfail)
 		d->ip.rq = NULL;
 	do {
 		bio = rq->bio;
-		bok = !fastfail && !bio->bi_error;
+		bok = !fastfail && !bio->bi_status;
 	} while (__blk_end_request(rq, bok ? BLK_STS_OK : BLK_STS_IOERR, bio->bi_iter.bi_size));
 
 	/* cf. http://lkml.org/lkml/2006/10/31/28 */
@@ -1131,7 +1131,7 @@ ktiocomplete(struct frame *f)
 			ahout->cmdstat, ahin->cmdstat,
 			d->aoemajor, d->aoeminor);
 noskb:		if (buf)
-			buf->bio->bi_error = -EIO;
+			buf->bio->bi_status = BLK_STS_IOERR;
 		goto out;
 	}
 
@@ -1144,7 +1144,7 @@ noskb:		if (buf)
 				"aoe: runt data size in read from",
 				(long) d->aoemajor, d->aoeminor,
 			       skb->len, n);
-			buf->bio->bi_error = -EIO;
+			buf->bio->bi_status = BLK_STS_IOERR;
 			break;
 		}
 		if (n > f->iter.bi_size) {
@@ -1152,7 +1152,7 @@ noskb:		if (buf)
 				"aoe: too-large data size in read from",
 				(long) d->aoemajor, d->aoeminor,
 				n, f->iter.bi_size);
-			buf->bio->bi_error = -EIO;
+			buf->bio->bi_status = BLK_STS_IOERR;
 			break;
 		}
 		bvcpy(skb, f->buf->bio, f->iter, n);
@@ -1654,7 +1654,7 @@ aoe_failbuf(struct aoedev *d, struct buf *buf)
 	if (buf == NULL)
 		return;
 	buf->iter.bi_size = 0;
-	buf->bio->bi_error = -EIO;
+	buf->bio->bi_status = BLK_STS_IOERR;
 	if (buf->nframesout == 0)
 		aoe_end_buf(d, buf);
 }
diff --git a/drivers/block/aoe/aoedev.c b/drivers/block/aoe/aoedev.c
index ffd1947..b28fefb 100644
--- a/drivers/block/aoe/aoedev.c
+++ b/drivers/block/aoe/aoedev.c
@@ -170,7 +170,7 @@ aoe_failip(struct aoedev *d)
 	if (rq == NULL)
 		return;
 	while ((bio = d->ip.nxbio)) {
-		bio->bi_error = -EIO;
+		bio->bi_status = BLK_STS_IOERR;
 		d->ip.nxbio = bio->bi_next;
 		n = (unsigned long) rq->special;
 		rq->special = (void *) --n;
diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c
index 8d7bcfa..e02c45c 100644
--- a/drivers/block/drbd/drbd_actlog.c
+++ b/drivers/block/drbd/drbd_actlog.c
@@ -178,7 +178,7 @@ static int _drbd_md_sync_page_io(struct drbd_device *device,
 	else
 		submit_bio(bio);
 	wait_until_done_or_force_detached(device, bdev, &device->md_io.done);
-	if (!bio->bi_error)
+	if (!bio->bi_status)
 		err = device->md_io.error;
 
  out:
diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
index a804a41..809fd24 100644
--- a/drivers/block/drbd/drbd_bitmap.c
+++ b/drivers/block/drbd/drbd_bitmap.c
@@ -959,16 +959,16 @@ static void drbd_bm_endio(struct bio *bio)
 	    !bm_test_page_unchanged(b->bm_pages[idx]))
 		drbd_warn(device, "bitmap page idx %u changed during IO!\n", idx);
 
-	if (bio->bi_error) {
+	if (bio->bi_status) {
 		/* ctx error will hold the completed-last non-zero error code,
 		 * in case error codes differ. */
-		ctx->error = bio->bi_error;
+		ctx->error = blk_status_to_errno(bio->bi_status);
 		bm_set_page_io_err(b->bm_pages[idx]);
 		/* Not identical to on disk version of it.
 		 * Is BM_PAGE_IO_ERROR enough? */
 		if (__ratelimit(&drbd_ratelimit_state))
 			drbd_err(device, "IO ERROR %d on bitmap page idx %u\n",
-					bio->bi_error, idx);
+					bio->bi_status, idx);
 	} else {
 		bm_clear_page_io_err(b->bm_pages[idx]);
 		dynamic_drbd_dbg(device, "bitmap page idx %u completed\n", idx);
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index d5da45b..76761b4 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -1627,7 +1627,7 @@ static inline void drbd_generic_make_request(struct drbd_device *device,
 	__release(local);
 	if (!bio->bi_bdev) {
 		drbd_err(device, "drbd_generic_make_request: bio->bi_bdev == NULL\n");
-		bio->bi_error = -ENODEV;
+		bio->bi_status = BLK_STS_IOERR;
 		bio_endio(bio);
 		return;
 	}
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 1b0a2be..c7e95e6 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -1229,9 +1229,9 @@ void one_flush_endio(struct bio *bio)
 	struct drbd_device *device = octx->device;
 	struct issue_flush_context *ctx = octx->ctx;
 
-	if (bio->bi_error) {
-		ctx->error = bio->bi_error;
-		drbd_info(device, "local disk FLUSH FAILED with status %d\n", bio->bi_error);
+	if (bio->bi_status) {
+		ctx->error = blk_status_to_errno(bio->bi_status);
+		drbd_info(device, "local disk FLUSH FAILED with status %d\n", bio->bi_status);
 	}
 	kfree(octx);
 	bio_put(bio);
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index 6566243..fca6b99 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -203,7 +203,7 @@ void start_new_tl_epoch(struct drbd_connection *connection)
 void complete_master_bio(struct drbd_device *device,
 		struct bio_and_error *m)
 {
-	m->bio->bi_error = m->error;
+	m->bio->bi_status = errno_to_blk_status(m->error);
 	bio_endio(m->bio);
 	dec_ap_bio(device);
 }
@@ -1157,7 +1157,7 @@ static void drbd_process_discard_req(struct drbd_request *req)
 
 	if (blkdev_issue_zeroout(bdev, req->i.sector, req->i.size >> 9,
 			GFP_NOIO, 0))
-		req->private_bio->bi_error = -EIO;
+		req->private_bio->bi_status = BLK_STS_IOERR;
 	bio_endio(req->private_bio);
 }
 
@@ -1225,7 +1225,7 @@ drbd_request_prepare(struct drbd_device *device, struct bio *bio, unsigned long
 		/* only pass the error to the upper layers.
 		 * if user cannot handle io errors, that's not our business. */
 		drbd_err(device, "could not kmalloc() req\n");
-		bio->bi_error = -ENOMEM;
+		bio->bi_status = BLK_STS_RESOURCE;
 		bio_endio(bio);
 		return ERR_PTR(-ENOMEM);
 	}
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index 1afcb4e..1d8726a 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -63,7 +63,7 @@ void drbd_md_endio(struct bio *bio)
 	struct drbd_device *device;
 
 	device = bio->bi_private;
-	device->md_io.error = bio->bi_error;
+	device->md_io.error = blk_status_to_errno(bio->bi_status);
 
 	/* We grabbed an extra reference in _drbd_md_sync_page_io() to be able
 	 * to timeout on the lower level device, and eventually detach from it.
@@ -177,13 +177,13 @@ void drbd_peer_request_endio(struct bio *bio)
 	bool is_discard = bio_op(bio) == REQ_OP_WRITE_ZEROES ||
 			  bio_op(bio) == REQ_OP_DISCARD;
 
-	if (bio->bi_error && __ratelimit(&drbd_ratelimit_state))
+	if (bio->bi_status && __ratelimit(&drbd_ratelimit_state))
 		drbd_warn(device, "%s: error=%d s=%llus\n",
 				is_write ? (is_discard ? "discard" : "write")
-					: "read", bio->bi_error,
+					: "read", bio->bi_status,
 				(unsigned long long)peer_req->i.sector);
 
-	if (bio->bi_error)
+	if (bio->bi_status)
 		set_bit(__EE_WAS_ERROR, &peer_req->flags);
 
 	bio_put(bio); /* no need for the bio anymore */
@@ -243,16 +243,16 @@ void drbd_request_endio(struct bio *bio)
 		if (__ratelimit(&drbd_ratelimit_state))
 			drbd_emerg(device, "delayed completion of aborted local request; disk-timeout may be too aggressive\n");
 
-		if (!bio->bi_error)
+		if (!bio->bi_status)
 			drbd_panic_after_delayed_completion_of_aborted_request(device);
 	}
 
 	/* to avoid recursion in __req_mod */
-	if (unlikely(bio->bi_error)) {
+	if (unlikely(bio->bi_status)) {
 		switch (bio_op(bio)) {
 		case REQ_OP_WRITE_ZEROES:
 		case REQ_OP_DISCARD:
-			if (bio->bi_error == -EOPNOTSUPP)
+			if (bio->bi_status == BLK_STS_NOTSUPP)
 				what = DISCARD_COMPLETED_NOTSUPP;
 			else
 				what = DISCARD_COMPLETED_WITH_ERROR;
@@ -272,7 +272,7 @@ void drbd_request_endio(struct bio *bio)
 	}
 
 	bio_put(req->private_bio);
-	req->private_bio = ERR_PTR(bio->bi_error);
+	req->private_bio = ERR_PTR(blk_status_to_errno(bio->bi_status));
 
 	/* not req_mod(), we need irqsave here! */
 	spin_lock_irqsave(&device->resource->req_lock, flags);
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index cc75a51..9e3cb32 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -3780,9 +3780,9 @@ static void floppy_rb0_cb(struct bio *bio)
 	struct rb0_cbdata *cbdata = (struct rb0_cbdata *)bio->bi_private;
 	int drive = cbdata->drive;
 
-	if (bio->bi_error) {
+	if (bio->bi_status) {
 		pr_info("floppy: error %d while reading block 0\n",
-			bio->bi_error);
+			bio->bi_status);
 		set_bit(FD_OPEN_SHOULD_FAIL_BIT, &UDRS->flags);
 	}
 	complete(&cbdata->complete);
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 42e3c880..e8a3811 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -952,9 +952,9 @@ static void pkt_end_io_read(struct bio *bio)
 
 	pkt_dbg(2, pd, "bio=%p sec0=%llx sec=%llx err=%d\n",
 		bio, (unsigned long long)pkt->sector,
-		(unsigned long long)bio->bi_iter.bi_sector, bio->bi_error);
+		(unsigned long long)bio->bi_iter.bi_sector, bio->bi_status);
 
-	if (bio->bi_error)
+	if (bio->bi_status)
 		atomic_inc(&pkt->io_errors);
 	if (atomic_dec_and_test(&pkt->io_wait)) {
 		atomic_inc(&pkt->run_sm);
@@ -969,7 +969,7 @@ static void pkt_end_io_packet_write(struct bio *bio)
 	struct pktcdvd_device *pd = pkt->pd;
 	BUG_ON(!pd);
 
-	pkt_dbg(2, pd, "id=%d, err=%d\n", pkt->id, bio->bi_error);
+	pkt_dbg(2, pd, "id=%d, err=%d\n", pkt->id, bio->bi_status);
 
 	pd->stats.pkt_ended++;
 
@@ -1305,16 +1305,16 @@ static void pkt_start_write(struct pktcdvd_device *pd, struct packet_data *pkt)
 	pkt_queue_bio(pd, pkt->w_bio);
 }
 
-static void pkt_finish_packet(struct packet_data *pkt, int error)
+static void pkt_finish_packet(struct packet_data *pkt, blk_status_t status)
 {
 	struct bio *bio;
 
-	if (error)
+	if (status)
 		pkt->cache_valid = 0;
 
 	/* Finish all bios corresponding to this packet */
 	while ((bio = bio_list_pop(&pkt->orig_bios))) {
-		bio->bi_error = error;
+		bio->bi_status = status;
 		bio_endio(bio);
 	}
 }
@@ -1349,7 +1349,7 @@ static void pkt_run_state_machine(struct pktcdvd_device *pd, struct packet_data
 			if (atomic_read(&pkt->io_wait) > 0)
 				return;
 
-			if (!pkt->w_bio->bi_error) {
+			if (!pkt->w_bio->bi_status) {
 				pkt_set_state(pkt, PACKET_FINISHED_STATE);
 			} else {
 				pkt_set_state(pkt, PACKET_RECOVERY_STATE);
@@ -1366,7 +1366,7 @@ static void pkt_run_state_machine(struct pktcdvd_device *pd, struct packet_data
 			break;
 
 		case PACKET_FINISHED_STATE:
-			pkt_finish_packet(pkt, pkt->w_bio->bi_error);
+			pkt_finish_packet(pkt, pkt->w_bio->bi_status);
 			return;
 
 		default:
@@ -2301,7 +2301,7 @@ static void pkt_end_io_read_cloned(struct bio *bio)
 	struct packet_stacked_data *psd = bio->bi_private;
 	struct pktcdvd_device *pd = psd->pd;
 
-	psd->bio->bi_error = bio->bi_error;
+	psd->bio->bi_status = bio->bi_status;
 	bio_put(bio);
 	bio_endio(psd->bio);
 	mempool_free(psd, psd_pool);
diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c
index 456b4fe..6fa2b81 100644
--- a/drivers/block/ps3vram.c
+++ b/drivers/block/ps3vram.c
@@ -428,7 +428,7 @@ static void ps3vram_cache_cleanup(struct ps3_system_bus_device *dev)
 	kfree(priv->cache.tags);
 }
 
-static int ps3vram_read(struct ps3_system_bus_device *dev, loff_t from,
+static blk_status_t ps3vram_read(struct ps3_system_bus_device *dev, loff_t from,
 			size_t len, size_t *retlen, u_char *buf)
 {
 	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
@@ -438,7 +438,7 @@ static int ps3vram_read(struct ps3_system_bus_device *dev, loff_t from,
 		(unsigned int)from, len);
 
 	if (from >= priv->size)
-		return -EIO;
+		return BLK_STS_IOERR;
 
 	if (len > priv->size - from)
 		len = priv->size - from;
@@ -472,14 +472,14 @@ static int ps3vram_read(struct ps3_system_bus_device *dev, loff_t from,
 	return 0;
 }
 
-static int ps3vram_write(struct ps3_system_bus_device *dev, loff_t to,
+static blk_status_t ps3vram_write(struct ps3_system_bus_device *dev, loff_t to,
 			 size_t len, size_t *retlen, const u_char *buf)
 {
 	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
 	unsigned int cached, count;
 
 	if (to >= priv->size)
-		return -EIO;
+		return BLK_STS_IOERR;
 
 	if (len > priv->size - to)
 		len = priv->size - to;
@@ -554,7 +554,7 @@ static struct bio *ps3vram_do_bio(struct ps3_system_bus_device *dev,
 	int write = bio_data_dir(bio) == WRITE;
 	const char *op = write ? "write" : "read";
 	loff_t offset = bio->bi_iter.bi_sector << 9;
-	int error = 0;
+	blk_status_t error = 0;
 	struct bio_vec bvec;
 	struct bvec_iter iter;
 	struct bio *next;
@@ -578,7 +578,7 @@ static struct bio *ps3vram_do_bio(struct ps3_system_bus_device *dev,
 
 		if (retlen != len) {
 			dev_err(&dev->core, "Short %s\n", op);
-			error = -EIO;
+			error = BLK_STS_IOERR;
 			goto out;
 		}
 
@@ -593,7 +593,7 @@ static struct bio *ps3vram_do_bio(struct ps3_system_bus_device *dev,
 	next = bio_list_peek(&priv->list);
 	spin_unlock_irq(&priv->lock);
 
-	bio->bi_error = error;
+	bio->bi_status = error;
 	bio_endio(bio);
 	return next;
 }
diff --git a/drivers/block/rsxx/dev.c b/drivers/block/rsxx/dev.c
index 9c56636..0b0a0a9 100644
--- a/drivers/block/rsxx/dev.c
+++ b/drivers/block/rsxx/dev.c
@@ -149,7 +149,7 @@ static blk_qc_t rsxx_make_request(struct request_queue *q, struct bio *bio)
 {
 	struct rsxx_cardinfo *card = q->queuedata;
 	struct rsxx_bio_meta *bio_meta;
-	int st = -EINVAL;
+	blk_status_t st = BLK_STS_IOERR;
 
 	blk_queue_split(q, &bio, q->bio_split);
 
@@ -161,15 +161,11 @@ static blk_qc_t rsxx_make_request(struct request_queue *q, struct bio *bio)
 	if (bio_end_sector(bio) > get_capacity(card->gendisk))
 		goto req_err;
 
-	if (unlikely(card->halt)) {
-		st = -EFAULT;
+	if (unlikely(card->halt))
 		goto req_err;
-	}
 
-	if (unlikely(card->dma_fault)) {
-		st = (-EFAULT);
+	if (unlikely(card->dma_fault))
 		goto req_err;
-	}
 
 	if (bio->bi_iter.bi_size == 0) {
 		dev_err(CARD_TO_DEV(card), "size zero BIO!\n");
@@ -178,7 +174,7 @@ static blk_qc_t rsxx_make_request(struct request_queue *q, struct bio *bio)
 
 	bio_meta = kmem_cache_alloc(bio_meta_pool, GFP_KERNEL);
 	if (!bio_meta) {
-		st = -ENOMEM;
+		st = BLK_STS_RESOURCE;
 		goto req_err;
 	}
 
@@ -205,7 +201,7 @@ static blk_qc_t rsxx_make_request(struct request_queue *q, struct bio *bio)
 	kmem_cache_free(bio_meta_pool, bio_meta);
 req_err:
 	if (st)
-		bio->bi_error = st;
+		bio->bi_status = st;
 	bio_endio(bio);
 	return BLK_QC_T_NONE;
 }
diff --git a/drivers/block/rsxx/dma.c b/drivers/block/rsxx/dma.c
index 5a20385f8..6a1b217 100644
--- a/drivers/block/rsxx/dma.c
+++ b/drivers/block/rsxx/dma.c
@@ -611,7 +611,7 @@ static void rsxx_schedule_done(struct work_struct *work)
 	mutex_unlock(&ctrl->work_lock);
 }
 
-static int rsxx_queue_discard(struct rsxx_cardinfo *card,
+static blk_status_t rsxx_queue_discard(struct rsxx_cardinfo *card,
 				  struct list_head *q,
 				  unsigned int laddr,
 				  rsxx_dma_cb cb,
@@ -621,7 +621,7 @@ static int rsxx_queue_discard(struct rsxx_cardinfo *card,
 
 	dma = kmem_cache_alloc(rsxx_dma_pool, GFP_KERNEL);
 	if (!dma)
-		return -ENOMEM;
+		return BLK_STS_RESOURCE;
 
 	dma->cmd          = HW_CMD_BLK_DISCARD;
 	dma->laddr        = laddr;
@@ -640,7 +640,7 @@ static int rsxx_queue_discard(struct rsxx_cardinfo *card,
 	return 0;
 }
 
-static int rsxx_queue_dma(struct rsxx_cardinfo *card,
+static blk_status_t rsxx_queue_dma(struct rsxx_cardinfo *card,
 			      struct list_head *q,
 			      int dir,
 			      unsigned int dma_off,
@@ -655,7 +655,7 @@ static int rsxx_queue_dma(struct rsxx_cardinfo *card,
 
 	dma = kmem_cache_alloc(rsxx_dma_pool, GFP_KERNEL);
 	if (!dma)
-		return -ENOMEM;
+		return BLK_STS_RESOURCE;
 
 	dma->cmd          = dir ? HW_CMD_BLK_WRITE : HW_CMD_BLK_READ;
 	dma->laddr        = laddr;
@@ -677,7 +677,7 @@ static int rsxx_queue_dma(struct rsxx_cardinfo *card,
 	return 0;
 }
 
-int rsxx_dma_queue_bio(struct rsxx_cardinfo *card,
+blk_status_t rsxx_dma_queue_bio(struct rsxx_cardinfo *card,
 			   struct bio *bio,
 			   atomic_t *n_dmas,
 			   rsxx_dma_cb cb,
@@ -694,7 +694,7 @@ int rsxx_dma_queue_bio(struct rsxx_cardinfo *card,
 	unsigned int dma_len;
 	int dma_cnt[RSXX_MAX_TARGETS];
 	int tgt;
-	int st;
+	blk_status_t st;
 	int i;
 
 	addr8 = bio->bi_iter.bi_sector << 9; /* sectors are 512 bytes */
@@ -769,7 +769,6 @@ int rsxx_dma_queue_bio(struct rsxx_cardinfo *card,
 	for (i = 0; i < card->n_targets; i++)
 		rsxx_cleanup_dma_queue(&card->ctrl[i], &dma_list[i],
 					FREE_DMA);
-
 	return st;
 }
 
diff --git a/drivers/block/rsxx/rsxx_priv.h b/drivers/block/rsxx/rsxx_priv.h
index 6bbc64d..277f27e6 100644
--- a/drivers/block/rsxx/rsxx_priv.h
+++ b/drivers/block/rsxx/rsxx_priv.h
@@ -391,7 +391,7 @@ int rsxx_dma_cancel(struct rsxx_dma_ctrl *ctrl);
 void rsxx_dma_cleanup(void);
 void rsxx_dma_queue_reset(struct rsxx_cardinfo *card);
 int rsxx_dma_configure(struct rsxx_cardinfo *card);
-int rsxx_dma_queue_bio(struct rsxx_cardinfo *card,
+blk_status_t rsxx_dma_queue_bio(struct rsxx_cardinfo *card,
 			   struct bio *bio,
 			   atomic_t *n_dmas,
 			   rsxx_dma_cb cb,
diff --git a/drivers/block/umem.c b/drivers/block/umem.c
index c141cc3..4b3c947 100644
--- a/drivers/block/umem.c
+++ b/drivers/block/umem.c
@@ -454,7 +454,7 @@ static void process_page(unsigned long data)
 				PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
 		if (control & DMASCR_HARD_ERROR) {
 			/* error */
-			bio->bi_error = -EIO;
+			bio->bi_status = BLK_STS_IOERR;
 			dev_printk(KERN_WARNING, &card->dev->dev,
 				"I/O error on sector %d/%d\n",
 				le32_to_cpu(desc->local_addr)>>9,
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index 726c32e..746bd8c 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -1069,20 +1069,17 @@ static void xen_blk_drain_io(struct xen_blkif_ring *ring)
 	atomic_set(&blkif->drain, 0);
 }
 
-/*
- * Completion callback on the bio's. Called as bh->b_end_io()
- */
-
-static void __end_block_io_op(struct pending_req *pending_req, int error)
+static void __end_block_io_op(struct pending_req *pending_req,
+		blk_status_t error)
 {
 	/* An error fails the entire request. */
-	if ((pending_req->operation == BLKIF_OP_FLUSH_DISKCACHE) &&
-	    (error == -EOPNOTSUPP)) {
+	if (pending_req->operation == BLKIF_OP_FLUSH_DISKCACHE &&
+	    error == BLK_STS_NOTSUPP) {
 		pr_debug("flush diskcache op failed, not supported\n");
 		xen_blkbk_flush_diskcache(XBT_NIL, pending_req->ring->blkif->be, 0);
 		pending_req->status = BLKIF_RSP_EOPNOTSUPP;
-	} else if ((pending_req->operation == BLKIF_OP_WRITE_BARRIER) &&
-		    (error == -EOPNOTSUPP)) {
+	} else if (pending_req->operation == BLKIF_OP_WRITE_BARRIER &&
+		   error == BLK_STS_NOTSUPP) {
 		pr_debug("write barrier op failed, not supported\n");
 		xen_blkbk_barrier(XBT_NIL, pending_req->ring->blkif->be, 0);
 		pending_req->status = BLKIF_RSP_EOPNOTSUPP;
@@ -1106,7 +1103,7 @@ static void __end_block_io_op(struct pending_req *pending_req, int error)
  */
 static void end_block_io_op(struct bio *bio)
 {
-	__end_block_io_op(bio->bi_private, bio->bi_error);
+	__end_block_io_op(bio->bi_private, bio->bi_status);
 	bio_put(bio);
 }
 
@@ -1423,7 +1420,7 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring,
 	for (i = 0; i < nbio; i++)
 		bio_put(biolist[i]);
 	atomic_set(&pending_req->pendcnt, 1);
-	__end_block_io_op(pending_req, -EINVAL);
+	__end_block_io_op(pending_req, BLK_STS_RESOURCE);
 	msleep(1); /* back off a bit */
 	return -EIO;
 }
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 2f468cf..e3be666 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -2006,7 +2006,7 @@ static void split_bio_end(struct bio *bio)
 
 	if (atomic_dec_and_test(&split_bio->pending)) {
 		split_bio->bio->bi_phys_segments = 0;
-		split_bio->bio->bi_error = bio->bi_error;
+		split_bio->bio->bi_status = bio->bi_status;
 		bio_endio(split_bio->bio);
 		kfree(split_bio);
 	}
diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c
index 5e44768..4e0de99 100644
--- a/drivers/lightnvm/pblk-core.c
+++ b/drivers/lightnvm/pblk-core.c
@@ -296,8 +296,8 @@ void pblk_flush_writer(struct pblk *pblk)
 		pr_err("pblk: tear down bio failed\n");
 	}
 
-	if (bio->bi_error)
-		pr_err("pblk: flush sync write failed (%u)\n", bio->bi_error);
+	if (bio->bi_status)
+		pr_err("pblk: flush sync write failed (%u)\n", bio->bi_status);
 
 	bio_put(bio);
 }
diff --git a/drivers/lightnvm/pblk-read.c b/drivers/lightnvm/pblk-read.c
index 4a12f14..762c0b7 100644
--- a/drivers/lightnvm/pblk-read.c
+++ b/drivers/lightnvm/pblk-read.c
@@ -114,7 +114,7 @@ static void pblk_end_io_read(struct nvm_rq *rqd)
 		pblk_log_read_err(pblk, rqd);
 #ifdef CONFIG_NVM_DEBUG
 	else
-		WARN_ONCE(bio->bi_error, "pblk: corrupted read error\n");
+		WARN_ONCE(bio->bi_status, "pblk: corrupted read error\n");
 #endif
 
 	if (rqd->nr_ppas > 1)
@@ -123,7 +123,7 @@ static void pblk_end_io_read(struct nvm_rq *rqd)
 	bio_put(bio);
 	if (r_ctx->orig_bio) {
 #ifdef CONFIG_NVM_DEBUG
-		WARN_ONCE(r_ctx->orig_bio->bi_error,
+		WARN_ONCE(r_ctx->orig_bio->bi_status,
 						"pblk: corrupted read bio\n");
 #endif
 		bio_endio(r_ctx->orig_bio);
diff --git a/drivers/lightnvm/pblk-write.c b/drivers/lightnvm/pblk-write.c
index aef6fd7..79b90d8 100644
--- a/drivers/lightnvm/pblk-write.c
+++ b/drivers/lightnvm/pblk-write.c
@@ -186,7 +186,7 @@ static void pblk_end_io_write(struct nvm_rq *rqd)
 	}
 #ifdef CONFIG_NVM_DEBUG
 	else
-		WARN_ONCE(rqd->bio->bi_error, "pblk: corrupted write error\n");
+		WARN_ONCE(rqd->bio->bi_status, "pblk: corrupted write error\n");
 #endif
 
 	pblk_complete_write(pblk, rqd, c_ctx);
diff --git a/drivers/lightnvm/rrpc.c b/drivers/lightnvm/rrpc.c
index cf0e28a..8d3b53b 100644
--- a/drivers/lightnvm/rrpc.c
+++ b/drivers/lightnvm/rrpc.c
@@ -279,8 +279,8 @@ static void rrpc_end_sync_bio(struct bio *bio)
 {
 	struct completion *waiting = bio->bi_private;
 
-	if (bio->bi_error)
-		pr_err("nvm: gc request failed (%u).\n", bio->bi_error);
+	if (bio->bi_status)
+		pr_err("nvm: gc request failed (%u).\n", bio->bi_status);
 
 	complete(waiting);
 }
@@ -359,7 +359,7 @@ static int rrpc_move_valid_pages(struct rrpc *rrpc, struct rrpc_block *rblk)
 			goto finished;
 		}
 		wait_for_completion_io(&wait);
-		if (bio->bi_error) {
+		if (bio->bi_status) {
 			rrpc_inflight_laddr_release(rrpc, rqd);
 			goto finished;
 		}
@@ -385,7 +385,7 @@ static int rrpc_move_valid_pages(struct rrpc *rrpc, struct rrpc_block *rblk)
 		wait_for_completion_io(&wait);
 
 		rrpc_inflight_laddr_release(rrpc, rqd);
-		if (bio->bi_error)
+		if (bio->bi_status)
 			goto finished;
 
 		bio_reset(bio);
diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index c3ea03c9..dee542f 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -849,10 +849,11 @@ static inline void wake_up_allocators(struct cache_set *c)
 
 /* Forward declarations */
 
-void bch_count_io_errors(struct cache *, int, const char *);
+void bch_count_io_errors(struct cache *, blk_status_t, const char *);
 void bch_bbio_count_io_errors(struct cache_set *, struct bio *,
-			      int, const char *);
-void bch_bbio_endio(struct cache_set *, struct bio *, int, const char *);
+			      blk_status_t, const char *);
+void bch_bbio_endio(struct cache_set *, struct bio *, blk_status_t,
+		const char *);
 void bch_bbio_free(struct bio *, struct cache_set *);
 struct bio *bch_bbio_alloc(struct cache_set *);
 
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 450d0e8..866dcf7 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -307,7 +307,7 @@ static void bch_btree_node_read(struct btree *b)
 	bch_submit_bbio(bio, b->c, &b->key, 0);
 	closure_sync(&cl);
 
-	if (bio->bi_error)
+	if (bio->bi_status)
 		set_btree_node_io_error(b);
 
 	bch_bbio_free(bio, b->c);
@@ -374,10 +374,10 @@ static void btree_node_write_endio(struct bio *bio)
 	struct closure *cl = bio->bi_private;
 	struct btree *b = container_of(cl, struct btree, io);
 
-	if (bio->bi_error)
+	if (bio->bi_status)
 		set_btree_node_io_error(b);
 
-	bch_bbio_count_io_errors(b->c, bio, bio->bi_error, "writing btree");
+	bch_bbio_count_io_errors(b->c, bio, bio->bi_status, "writing btree");
 	closure_put(cl);
 }
 
diff --git a/drivers/md/bcache/io.c b/drivers/md/bcache/io.c
index db45a88..6a9b850 100644
--- a/drivers/md/bcache/io.c
+++ b/drivers/md/bcache/io.c
@@ -50,7 +50,7 @@ void bch_submit_bbio(struct bio *bio, struct cache_set *c,
 
 /* IO errors */
 
-void bch_count_io_errors(struct cache *ca, int error, const char *m)
+void bch_count_io_errors(struct cache *ca, blk_status_t error, const char *m)
 {
 	/*
 	 * The halflife of an error is:
@@ -103,7 +103,7 @@ void bch_count_io_errors(struct cache *ca, int error, const char *m)
 }
 
 void bch_bbio_count_io_errors(struct cache_set *c, struct bio *bio,
-			      int error, const char *m)
+			      blk_status_t error, const char *m)
 {
 	struct bbio *b = container_of(bio, struct bbio, bio);
 	struct cache *ca = PTR_CACHE(c, &b->key, 0);
@@ -132,7 +132,7 @@ void bch_bbio_count_io_errors(struct cache_set *c, struct bio *bio,
 }
 
 void bch_bbio_endio(struct cache_set *c, struct bio *bio,
-		    int error, const char *m)
+		    blk_status_t error, const char *m)
 {
 	struct closure *cl = bio->bi_private;
 
diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index 1198e53..0352d05 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -549,7 +549,7 @@ static void journal_write_endio(struct bio *bio)
 {
 	struct journal_write *w = bio->bi_private;
 
-	cache_set_err_on(bio->bi_error, w->c, "journal io error");
+	cache_set_err_on(bio->bi_status, w->c, "journal io error");
 	closure_put(&w->c->journal.io);
 }
 
diff --git a/drivers/md/bcache/movinggc.c b/drivers/md/bcache/movinggc.c
index 13b8a90..f633b30 100644
--- a/drivers/md/bcache/movinggc.c
+++ b/drivers/md/bcache/movinggc.c
@@ -63,14 +63,14 @@ static void read_moving_endio(struct bio *bio)
 	struct moving_io *io = container_of(bio->bi_private,
 					    struct moving_io, cl);
 
-	if (bio->bi_error)
-		io->op.error = bio->bi_error;
+	if (bio->bi_status)
+		io->op.status = bio->bi_status;
 	else if (!KEY_DIRTY(&b->key) &&
 		 ptr_stale(io->op.c, &b->key, 0)) {
-		io->op.error = -EINTR;
+		io->op.status = BLK_STS_IOERR;
 	}
 
-	bch_bbio_endio(io->op.c, bio, bio->bi_error, "reading data to move");
+	bch_bbio_endio(io->op.c, bio, bio->bi_status, "reading data to move");
 }
 
 static void moving_init(struct moving_io *io)
@@ -92,7 +92,7 @@ static void write_moving(struct closure *cl)
 	struct moving_io *io = container_of(cl, struct moving_io, cl);
 	struct data_insert_op *op = &io->op;
 
-	if (!op->error) {
+	if (!op->status) {
 		moving_init(io);
 
 		io->bio.bio.bi_iter.bi_sector = KEY_START(&io->w->key);
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 709c9cc..019b3df 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -81,7 +81,7 @@ static void bch_data_insert_keys(struct closure *cl)
 	if (ret == -ESRCH) {
 		op->replace_collision = true;
 	} else if (ret) {
-		op->error		= -ENOMEM;
+		op->status		= BLK_STS_RESOURCE;
 		op->insert_data_done	= true;
 	}
 
@@ -178,17 +178,17 @@ static void bch_data_insert_endio(struct bio *bio)
 	struct closure *cl = bio->bi_private;
 	struct data_insert_op *op = container_of(cl, struct data_insert_op, cl);
 
-	if (bio->bi_error) {
+	if (bio->bi_status) {
 		/* TODO: We could try to recover from this. */
 		if (op->writeback)
-			op->error = bio->bi_error;
+			op->status = bio->bi_status;
 		else if (!op->replace)
 			set_closure_fn(cl, bch_data_insert_error, op->wq);
 		else
 			set_closure_fn(cl, NULL, NULL);
 	}
 
-	bch_bbio_endio(op->c, bio, bio->bi_error, "writing data to cache");
+	bch_bbio_endio(op->c, bio, bio->bi_status, "writing data to cache");
 }
 
 static void bch_data_insert_start(struct closure *cl)
@@ -488,15 +488,15 @@ static void bch_cache_read_endio(struct bio *bio)
 	 * from the backing device.
 	 */
 
-	if (bio->bi_error)
-		s->iop.error = bio->bi_error;
+	if (bio->bi_status)
+		s->iop.status = bio->bi_status;
 	else if (!KEY_DIRTY(&b->key) &&
 		 ptr_stale(s->iop.c, &b->key, 0)) {
 		atomic_long_inc(&s->iop.c->cache_read_races);
-		s->iop.error = -EINTR;
+		s->iop.status = BLK_STS_IOERR;
 	}
 
-	bch_bbio_endio(s->iop.c, bio, bio->bi_error, "reading from cache");
+	bch_bbio_endio(s->iop.c, bio, bio->bi_status, "reading from cache");
 }
 
 /*
@@ -593,9 +593,9 @@ static void request_endio(struct bio *bio)
 {
 	struct closure *cl = bio->bi_private;
 
-	if (bio->bi_error) {
+	if (bio->bi_status) {
 		struct search *s = container_of(cl, struct search, cl);
-		s->iop.error = bio->bi_error;
+		s->iop.status = bio->bi_status;
 		/* Only cache read errors are recoverable */
 		s->recoverable = false;
 	}
@@ -611,7 +611,7 @@ static void bio_complete(struct search *s)
 				    &s->d->disk->part0, s->start_time);
 
 		trace_bcache_request_end(s->d, s->orig_bio);
-		s->orig_bio->bi_error = s->iop.error;
+		s->orig_bio->bi_status = s->iop.status;
 		bio_endio(s->orig_bio);
 		s->orig_bio = NULL;
 	}
@@ -664,7 +664,7 @@ static inline struct search *search_alloc(struct bio *bio,
 	s->iop.inode		= d->id;
 	s->iop.write_point	= hash_long((unsigned long) current, 16);
 	s->iop.write_prio	= 0;
-	s->iop.error		= 0;
+	s->iop.status		= 0;
 	s->iop.flags		= 0;
 	s->iop.flush_journal	= op_is_flush(bio->bi_opf);
 	s->iop.wq		= bcache_wq;
@@ -707,7 +707,7 @@ static void cached_dev_read_error(struct closure *cl)
 		/* Retry from the backing device: */
 		trace_bcache_read_retry(s->orig_bio);
 
-		s->iop.error = 0;
+		s->iop.status = 0;
 		do_bio_hook(s, s->orig_bio);
 
 		/* XXX: invalidate cache */
@@ -767,7 +767,7 @@ static void cached_dev_read_done_bh(struct closure *cl)
 				  !s->cache_miss, s->iop.bypass);
 	trace_bcache_read(s->orig_bio, !s->cache_miss, s->iop.bypass);
 
-	if (s->iop.error)
+	if (s->iop.status)
 		continue_at_nobarrier(cl, cached_dev_read_error, bcache_wq);
 	else if (s->iop.bio || verify(dc, &s->bio.bio))
 		continue_at_nobarrier(cl, cached_dev_read_done, bcache_wq);
diff --git a/drivers/md/bcache/request.h b/drivers/md/bcache/request.h
index 1ff3687..7689176 100644
--- a/drivers/md/bcache/request.h
+++ b/drivers/md/bcache/request.h
@@ -10,7 +10,7 @@ struct data_insert_op {
 	unsigned		inode;
 	uint16_t		write_point;
 	uint16_t		write_prio;
-	short			error;
+	blk_status_t		status;
 
 	union {
 		uint16_t	flags;
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index e57353e..fbc4f54 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -271,7 +271,7 @@ static void write_super_endio(struct bio *bio)
 {
 	struct cache *ca = bio->bi_private;
 
-	bch_count_io_errors(ca, bio->bi_error, "writing superblock");
+	bch_count_io_errors(ca, bio->bi_status, "writing superblock");
 	closure_put(&ca->set->sb_write);
 }
 
@@ -321,7 +321,7 @@ static void uuid_endio(struct bio *bio)
 	struct closure *cl = bio->bi_private;
 	struct cache_set *c = container_of(cl, struct cache_set, uuid_write);
 
-	cache_set_err_on(bio->bi_error, c, "accessing uuids");
+	cache_set_err_on(bio->bi_status, c, "accessing uuids");
 	bch_bbio_free(bio, c);
 	closure_put(cl);
 }
@@ -494,7 +494,7 @@ static void prio_endio(struct bio *bio)
 {
 	struct cache *ca = bio->bi_private;
 
-	cache_set_err_on(bio->bi_error, ca->set, "accessing priorities");
+	cache_set_err_on(bio->bi_status, ca->set, "accessing priorities");
 	bch_bbio_free(bio, ca->set);
 	closure_put(&ca->prio);
 }
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index 6ac2e48..42c66e7 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -167,7 +167,7 @@ static void dirty_endio(struct bio *bio)
 	struct keybuf_key *w = bio->bi_private;
 	struct dirty_io *io = w->private;
 
-	if (bio->bi_error)
+	if (bio->bi_status)
 		SET_KEY_DIRTY(&w->key, false);
 
 	closure_put(&io->cl);
@@ -195,7 +195,7 @@ static void read_dirty_endio(struct bio *bio)
 	struct dirty_io *io = w->private;
 
 	bch_count_io_errors(PTR_CACHE(io->dc->disk.c, &w->key, 0),
-			    bio->bi_error, "reading dirty data from cache");
+			    bio->bi_status, "reading dirty data from cache");
 
 	dirty_endio(bio);
 }
diff --git a/drivers/md/dm-bio-prison-v1.c b/drivers/md/dm-bio-prison-v1.c
index ae7da2c3..82d2738 100644
--- a/drivers/md/dm-bio-prison-v1.c
+++ b/drivers/md/dm-bio-prison-v1.c
@@ -229,7 +229,7 @@ void dm_cell_release_no_holder(struct dm_bio_prison *prison,
 EXPORT_SYMBOL_GPL(dm_cell_release_no_holder);
 
 void dm_cell_error(struct dm_bio_prison *prison,
-		   struct dm_bio_prison_cell *cell, int error)
+		   struct dm_bio_prison_cell *cell, blk_status_t error)
 {
 	struct bio_list bios;
 	struct bio *bio;
@@ -238,7 +238,7 @@ void dm_cell_error(struct dm_bio_prison *prison,
 	dm_cell_release(prison, cell, &bios);
 
 	while ((bio = bio_list_pop(&bios))) {
-		bio->bi_error = error;
+		bio->bi_status = error;
 		bio_endio(bio);
 	}
 }
diff --git a/drivers/md/dm-bio-prison-v1.h b/drivers/md/dm-bio-prison-v1.h
index cddd4ac..cec52ac 100644
--- a/drivers/md/dm-bio-prison-v1.h
+++ b/drivers/md/dm-bio-prison-v1.h
@@ -91,7 +91,7 @@ void dm_cell_release_no_holder(struct dm_bio_prison *prison,
 			       struct dm_bio_prison_cell *cell,
 			       struct bio_list *inmates);
 void dm_cell_error(struct dm_bio_prison *prison,
-		   struct dm_bio_prison_cell *cell, int error);
+		   struct dm_bio_prison_cell *cell, blk_status_t error);
 
 /*
  * Visits the cell and then releases.  Guarantees no new inmates are
diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
index cd81395..0902d2f 100644
--- a/drivers/md/dm-bufio.c
+++ b/drivers/md/dm-bufio.c
@@ -145,8 +145,8 @@ struct dm_buffer {
 	enum data_mode data_mode;
 	unsigned char list_mode;		/* LIST_* */
 	unsigned hold_count;
-	int read_error;
-	int write_error;
+	blk_status_t read_error;
+	blk_status_t write_error;
 	unsigned long state;
 	unsigned long last_accessed;
 	struct dm_bufio_client *c;
@@ -555,7 +555,7 @@ static void dmio_complete(unsigned long error, void *context)
 {
 	struct dm_buffer *b = context;
 
-	b->bio.bi_error = error ? -EIO : 0;
+	b->bio.bi_status = error ? BLK_STS_IOERR : 0;
 	b->bio.bi_end_io(&b->bio);
 }
 
@@ -588,7 +588,7 @@ static void use_dmio(struct dm_buffer *b, int rw, sector_t sector,
 
 	r = dm_io(&io_req, 1, &region, NULL);
 	if (r) {
-		b->bio.bi_error = r;
+		b->bio.bi_status = errno_to_blk_status(r);
 		end_io(&b->bio);
 	}
 }
@@ -596,7 +596,7 @@ static void use_dmio(struct dm_buffer *b, int rw, sector_t sector,
 static void inline_endio(struct bio *bio)
 {
 	bio_end_io_t *end_fn = bio->bi_private;
-	int error = bio->bi_error;
+	blk_status_t status = bio->bi_status;
 
 	/*
 	 * Reset the bio to free any attached resources
@@ -604,7 +604,7 @@ static void inline_endio(struct bio *bio)
 	 */
 	bio_reset(bio);
 
-	bio->bi_error = error;
+	bio->bi_status = status;
 	end_fn(bio);
 }
 
@@ -685,11 +685,12 @@ static void write_endio(struct bio *bio)
 {
 	struct dm_buffer *b = container_of(bio, struct dm_buffer, bio);
 
-	b->write_error = bio->bi_error;
-	if (unlikely(bio->bi_error)) {
+	b->write_error = bio->bi_status;
+	if (unlikely(bio->bi_status)) {
 		struct dm_bufio_client *c = b->c;
-		int error = bio->bi_error;
-		(void)cmpxchg(&c->async_write_error, 0, error);
+
+		(void)cmpxchg(&c->async_write_error, 0,
+				blk_status_to_errno(bio->bi_status));
 	}
 
 	BUG_ON(!test_bit(B_WRITING, &b->state));
@@ -1063,7 +1064,7 @@ static void read_endio(struct bio *bio)
 {
 	struct dm_buffer *b = container_of(bio, struct dm_buffer, bio);
 
-	b->read_error = bio->bi_error;
+	b->read_error = bio->bi_status;
 
 	BUG_ON(!test_bit(B_READING, &b->state));
 
@@ -1107,7 +1108,7 @@ static void *new_read(struct dm_bufio_client *c, sector_t block,
 	wait_on_bit_io(&b->state, B_READING, TASK_UNINTERRUPTIBLE);
 
 	if (b->read_error) {
-		int error = b->read_error;
+		int error = blk_status_to_errno(b->read_error);
 
 		dm_bufio_release(b);
 
@@ -1257,7 +1258,8 @@ EXPORT_SYMBOL_GPL(dm_bufio_write_dirty_buffers_async);
  */
 int dm_bufio_write_dirty_buffers(struct dm_bufio_client *c)
 {
-	int a, f;
+	blk_status_t a;
+	int f;
 	unsigned long buffers_processed = 0;
 	struct dm_buffer *b, *tmp;
 
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index c48612e..c5ea03f 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -119,7 +119,7 @@ static void iot_io_end(struct io_tracker *iot, sector_t len)
  */
 struct continuation {
 	struct work_struct ws;
-	int input;
+	blk_status_t input;
 };
 
 static inline void init_continuation(struct continuation *k,
@@ -145,7 +145,7 @@ struct batcher {
 	/*
 	 * The operation that everyone is waiting for.
 	 */
-	int (*commit_op)(void *context);
+	blk_status_t (*commit_op)(void *context);
 	void *commit_context;
 
 	/*
@@ -171,8 +171,7 @@ struct batcher {
 static void __commit(struct work_struct *_ws)
 {
 	struct batcher *b = container_of(_ws, struct batcher, commit_work);
-
-	int r;
+	blk_status_t r;
 	unsigned long flags;
 	struct list_head work_items;
 	struct work_struct *ws, *tmp;
@@ -205,7 +204,7 @@ static void __commit(struct work_struct *_ws)
 
 	while ((bio = bio_list_pop(&bios))) {
 		if (r) {
-			bio->bi_error = r;
+			bio->bi_status = r;
 			bio_endio(bio);
 		} else
 			b->issue_op(bio, b->issue_context);
@@ -213,7 +212,7 @@ static void __commit(struct work_struct *_ws)
 }
 
 static void batcher_init(struct batcher *b,
-			 int (*commit_op)(void *),
+			 blk_status_t (*commit_op)(void *),
 			 void *commit_context,
 			 void (*issue_op)(struct bio *bio, void *),
 			 void *issue_context,
@@ -955,7 +954,7 @@ static void writethrough_endio(struct bio *bio)
 
 	dm_unhook_bio(&pb->hook_info, bio);
 
-	if (bio->bi_error) {
+	if (bio->bi_status) {
 		bio_endio(bio);
 		return;
 	}
@@ -1220,7 +1219,7 @@ static void copy_complete(int read_err, unsigned long write_err, void *context)
 	struct dm_cache_migration *mg = container_of(context, struct dm_cache_migration, k);
 
 	if (read_err || write_err)
-		mg->k.input = -EIO;
+		mg->k.input = BLK_STS_IOERR;
 
 	queue_continuation(mg->cache->wq, &mg->k);
 }
@@ -1266,8 +1265,8 @@ static void overwrite_endio(struct bio *bio)
 
 	dm_unhook_bio(&pb->hook_info, bio);
 
-	if (bio->bi_error)
-		mg->k.input = bio->bi_error;
+	if (bio->bi_status)
+		mg->k.input = bio->bi_status;
 
 	queue_continuation(mg->cache->wq, &mg->k);
 }
@@ -1323,8 +1322,10 @@ static void mg_complete(struct dm_cache_migration *mg, bool success)
 		if (mg->overwrite_bio) {
 			if (success)
 				force_set_dirty(cache, cblock);
+			else if (mg->k.input)
+				mg->overwrite_bio->bi_status = mg->k.input;
 			else
-				mg->overwrite_bio->bi_error = (mg->k.input ? : -EIO);
+				mg->overwrite_bio->bi_status = BLK_STS_IOERR;
 			bio_endio(mg->overwrite_bio);
 		} else {
 			if (success)
@@ -1504,7 +1505,7 @@ static void mg_copy(struct work_struct *ws)
 		r = copy(mg, is_policy_promote);
 		if (r) {
 			DMERR_LIMIT("%s: migration copy failed", cache_device_name(cache));
-			mg->k.input = -EIO;
+			mg->k.input = BLK_STS_IOERR;
 			mg_complete(mg, false);
 		}
 	}
@@ -1907,12 +1908,12 @@ static int commit(struct cache *cache, bool clean_shutdown)
 /*
  * Used by the batcher.
  */
-static int commit_op(void *context)
+static blk_status_t commit_op(void *context)
 {
 	struct cache *cache = context;
 
 	if (dm_cache_changed_this_transaction(cache->cmd))
-		return commit(cache, false);
+		return errno_to_blk_status(commit(cache, false));
 
 	return 0;
 }
@@ -2018,7 +2019,7 @@ static void requeue_deferred_bios(struct cache *cache)
 	bio_list_init(&cache->deferred_bios);
 
 	while ((bio = bio_list_pop(&bios))) {
-		bio->bi_error = DM_ENDIO_REQUEUE;
+		bio->bi_status = BLK_STS_DM_REQUEUE;
 		bio_endio(bio);
 	}
 }
@@ -2820,7 +2821,8 @@ static int cache_map(struct dm_target *ti, struct bio *bio)
 	return r;
 }
 
-static int cache_end_io(struct dm_target *ti, struct bio *bio, int *error)
+static int cache_end_io(struct dm_target *ti, struct bio *bio,
+		blk_status_t *error)
 {
 	struct cache *cache = ti->private;
 	unsigned long flags;
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index f4b5180..586cef0 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -71,7 +71,7 @@ struct dm_crypt_io {
 	struct convert_context ctx;
 
 	atomic_t io_pending;
-	int error;
+	blk_status_t error;
 	sector_t sector;
 
 	struct rb_node rb_node;
@@ -1292,7 +1292,7 @@ static void crypt_free_req(struct crypt_config *cc, void *req, struct bio *base_
 /*
  * Encrypt / decrypt data from one bio to another one (can be the same one)
  */
-static int crypt_convert(struct crypt_config *cc,
+static blk_status_t crypt_convert(struct crypt_config *cc,
 			 struct convert_context *ctx)
 {
 	unsigned int tag_offset = 0;
@@ -1343,13 +1343,13 @@ static int crypt_convert(struct crypt_config *cc,
 		 */
 		case -EBADMSG:
 			atomic_dec(&ctx->cc_pending);
-			return -EILSEQ;
+			return BLK_STS_PROTECTION;
 		/*
 		 * There was an error while processing the request.
 		 */
 		default:
 			atomic_dec(&ctx->cc_pending);
-			return -EIO;
+			return BLK_STS_IOERR;
 		}
 	}
 
@@ -1463,7 +1463,7 @@ static void crypt_dec_pending(struct dm_crypt_io *io)
 {
 	struct crypt_config *cc = io->cc;
 	struct bio *base_bio = io->base_bio;
-	int error = io->error;
+	blk_status_t error = io->error;
 
 	if (!atomic_dec_and_test(&io->io_pending))
 		return;
@@ -1476,7 +1476,7 @@ static void crypt_dec_pending(struct dm_crypt_io *io)
 	else
 		kfree(io->integrity_metadata);
 
-	base_bio->bi_error = error;
+	base_bio->bi_status = error;
 	bio_endio(base_bio);
 }
 
@@ -1502,7 +1502,7 @@ static void crypt_endio(struct bio *clone)
 	struct dm_crypt_io *io = clone->bi_private;
 	struct crypt_config *cc = io->cc;
 	unsigned rw = bio_data_dir(clone);
-	int error;
+	blk_status_t error;
 
 	/*
 	 * free the processed pages
@@ -1510,7 +1510,7 @@ static void crypt_endio(struct bio *clone)
 	if (rw == WRITE)
 		crypt_free_buffer_pages(cc, clone);
 
-	error = clone->bi_error;
+	error = clone->bi_status;
 	bio_put(clone);
 
 	if (rw == READ && !error) {
@@ -1570,7 +1570,7 @@ static void kcryptd_io_read_work(struct work_struct *work)
 
 	crypt_inc_pending(io);
 	if (kcryptd_io_read(io, GFP_NOIO))
-		io->error = -ENOMEM;
+		io->error = BLK_STS_RESOURCE;
 	crypt_dec_pending(io);
 }
 
@@ -1656,7 +1656,7 @@ static void kcryptd_crypt_write_io_submit(struct dm_crypt_io *io, int async)
 	sector_t sector;
 	struct rb_node **rbp, *parent;
 
-	if (unlikely(io->error < 0)) {
+	if (unlikely(io->error)) {
 		crypt_free_buffer_pages(cc, clone);
 		bio_put(clone);
 		crypt_dec_pending(io);
@@ -1697,7 +1697,7 @@ static void kcryptd_crypt_write_convert(struct dm_crypt_io *io)
 	struct bio *clone;
 	int crypt_finished;
 	sector_t sector = io->sector;
-	int r;
+	blk_status_t r;
 
 	/*
 	 * Prevent io from disappearing until this function completes.
@@ -1707,7 +1707,7 @@ static void kcryptd_crypt_write_convert(struct dm_crypt_io *io)
 
 	clone = crypt_alloc_buffer(io, io->base_bio->bi_iter.bi_size);
 	if (unlikely(!clone)) {
-		io->error = -EIO;
+		io->error = BLK_STS_IOERR;
 		goto dec;
 	}
 
@@ -1718,7 +1718,7 @@ static void kcryptd_crypt_write_convert(struct dm_crypt_io *io)
 
 	crypt_inc_pending(io);
 	r = crypt_convert(cc, &io->ctx);
-	if (r < 0)
+	if (r)
 		io->error = r;
 	crypt_finished = atomic_dec_and_test(&io->ctx.cc_pending);
 
@@ -1740,7 +1740,7 @@ static void kcryptd_crypt_read_done(struct dm_crypt_io *io)
 static void kcryptd_crypt_read_convert(struct dm_crypt_io *io)
 {
 	struct crypt_config *cc = io->cc;
-	int r = 0;
+	blk_status_t r;
 
 	crypt_inc_pending(io);
 
@@ -1748,7 +1748,7 @@ static void kcryptd_crypt_read_convert(struct dm_crypt_io *io)
 			   io->sector);
 
 	r = crypt_convert(cc, &io->ctx);
-	if (r < 0)
+	if (r)
 		io->error = r;
 
 	if (atomic_dec_and_test(&io->ctx.cc_pending))
@@ -1781,9 +1781,9 @@ static void kcryptd_async_done(struct crypto_async_request *async_req,
 	if (error == -EBADMSG) {
 		DMERR_LIMIT("INTEGRITY AEAD ERROR, sector %llu",
 			    (unsigned long long)le64_to_cpu(*org_sector_of_dmreq(cc, dmreq)));
-		io->error = -EILSEQ;
+		io->error = BLK_STS_PROTECTION;
 	} else if (error < 0)
-		io->error = -EIO;
+		io->error = BLK_STS_IOERR;
 
 	crypt_free_req(cc, req_of_dmreq(cc, dmreq), io->base_bio);
 
diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c
index c953991..3d04d5c 100644
--- a/drivers/md/dm-flakey.c
+++ b/drivers/md/dm-flakey.c
@@ -358,7 +358,8 @@ static int flakey_map(struct dm_target *ti, struct bio *bio)
 	return DM_MAPIO_REMAPPED;
 }
 
-static int flakey_end_io(struct dm_target *ti, struct bio *bio, int *error)
+static int flakey_end_io(struct dm_target *ti, struct bio *bio,
+		blk_status_t *error)
 {
 	struct flakey_c *fc = ti->private;
 	struct per_bio_data *pb = dm_per_bio_data(bio, sizeof(struct per_bio_data));
@@ -377,7 +378,7 @@ static int flakey_end_io(struct dm_target *ti, struct bio *bio, int *error)
 			 * Error read during the down_interval if drop_writes
 			 * and error_writes were not configured.
 			 */
-			*error = -EIO;
+			*error = BLK_STS_IOERR;
 		}
 	}
 
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index ee78fb4..ccc6ef4 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -246,7 +246,7 @@ struct dm_integrity_io {
 	unsigned metadata_offset;
 
 	atomic_t in_flight;
-	int bi_error;
+	blk_status_t bi_status;
 
 	struct completion *completion;
 
@@ -1114,8 +1114,8 @@ static void submit_flush_bio(struct dm_integrity_c *ic, struct dm_integrity_io *
 static void do_endio(struct dm_integrity_c *ic, struct bio *bio)
 {
 	int r = dm_integrity_failed(ic);
-	if (unlikely(r) && !bio->bi_error)
-		bio->bi_error = r;
+	if (unlikely(r) && !bio->bi_status)
+		bio->bi_status = errno_to_blk_status(r);
 	bio_endio(bio);
 }
 
@@ -1123,7 +1123,7 @@ static void do_endio_flush(struct dm_integrity_c *ic, struct dm_integrity_io *di
 {
 	struct bio *bio = dm_bio_from_per_bio_data(dio, sizeof(struct dm_integrity_io));
 
-	if (unlikely(dio->fua) && likely(!bio->bi_error) && likely(!dm_integrity_failed(ic)))
+	if (unlikely(dio->fua) && likely(!bio->bi_status) && likely(!dm_integrity_failed(ic)))
 		submit_flush_bio(ic, dio);
 	else
 		do_endio(ic, bio);
@@ -1142,9 +1142,9 @@ static void dec_in_flight(struct dm_integrity_io *dio)
 
 		bio = dm_bio_from_per_bio_data(dio, sizeof(struct dm_integrity_io));
 
-		if (unlikely(dio->bi_error) && !bio->bi_error)
-			bio->bi_error = dio->bi_error;
-		if (likely(!bio->bi_error) && unlikely(bio_sectors(bio) != dio->range.n_sectors)) {
+		if (unlikely(dio->bi_status) && !bio->bi_status)
+			bio->bi_status = dio->bi_status;
+		if (likely(!bio->bi_status) && unlikely(bio_sectors(bio) != dio->range.n_sectors)) {
 			dio->range.logical_sector += dio->range.n_sectors;
 			bio_advance(bio, dio->range.n_sectors << SECTOR_SHIFT);
 			INIT_WORK(&dio->work, integrity_bio_wait);
@@ -1318,7 +1318,7 @@ static void integrity_metadata(struct work_struct *w)
 	dec_in_flight(dio);
 	return;
 error:
-	dio->bi_error = r;
+	dio->bi_status = errno_to_blk_status(r);
 	dec_in_flight(dio);
 }
 
@@ -1331,7 +1331,7 @@ static int dm_integrity_map(struct dm_target *ti, struct bio *bio)
 	sector_t area, offset;
 
 	dio->ic = ic;
-	dio->bi_error = 0;
+	dio->bi_status = 0;
 
 	if (unlikely(bio->bi_opf & REQ_PREFLUSH)) {
 		submit_flush_bio(ic, dio);
diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
index 3702e50..c8f8f30 100644
--- a/drivers/md/dm-io.c
+++ b/drivers/md/dm-io.c
@@ -124,7 +124,7 @@ static void complete_io(struct io *io)
 	fn(error_bits, context);
 }
 
-static void dec_count(struct io *io, unsigned int region, int error)
+static void dec_count(struct io *io, unsigned int region, blk_status_t error)
 {
 	if (error)
 		set_bit(region, &io->error_bits);
@@ -137,9 +137,9 @@ static void endio(struct bio *bio)
 {
 	struct io *io;
 	unsigned region;
-	int error;
+	blk_status_t error;
 
-	if (bio->bi_error && bio_data_dir(bio) == READ)
+	if (bio->bi_status && bio_data_dir(bio) == READ)
 		zero_fill_bio(bio);
 
 	/*
@@ -147,7 +147,7 @@ static void endio(struct bio *bio)
 	 */
 	retrieve_io_and_region_from_bio(bio, &io, &region);
 
-	error = bio->bi_error;
+	error = bio->bi_status;
 	bio_put(bio);
 
 	dec_count(io, region, error);
@@ -319,7 +319,7 @@ static void do_region(int op, int op_flags, unsigned region,
 	if ((op == REQ_OP_DISCARD || op == REQ_OP_WRITE_ZEROES ||
 	     op == REQ_OP_WRITE_SAME)  &&
 	    special_cmd_max_sectors == 0) {
-		dec_count(io, region, -EOPNOTSUPP);
+		dec_count(io, region, BLK_STS_NOTSUPP);
 		return;
 	}
 
diff --git a/drivers/md/dm-log-writes.c b/drivers/md/dm-log-writes.c
index cc57c7f..a1da0eb 100644
--- a/drivers/md/dm-log-writes.c
+++ b/drivers/md/dm-log-writes.c
@@ -150,10 +150,10 @@ static void log_end_io(struct bio *bio)
 {
 	struct log_writes_c *lc = bio->bi_private;
 
-	if (bio->bi_error) {
+	if (bio->bi_status) {
 		unsigned long flags;
 
-		DMERR("Error writing log block, error=%d", bio->bi_error);
+		DMERR("Error writing log block, error=%d", bio->bi_status);
 		spin_lock_irqsave(&lc->blocks_lock, flags);
 		lc->logging_enabled = false;
 		spin_unlock_irqrestore(&lc->blocks_lock, flags);
@@ -664,7 +664,8 @@ static int log_writes_map(struct dm_target *ti, struct bio *bio)
 	return DM_MAPIO_REMAPPED;
 }
 
-static int normal_end_io(struct dm_target *ti, struct bio *bio, int *error)
+static int normal_end_io(struct dm_target *ti, struct bio *bio,
+		blk_status_t *error)
 {
 	struct log_writes_c *lc = ti->private;
 	struct per_bio_data *pb = dm_per_bio_data(bio, sizeof(struct per_bio_data));
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 39262e3..a7d2e08 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -565,7 +565,7 @@ static int __multipath_map_bio(struct multipath *m, struct bio *bio, struct dm_m
 	mpio->pgpath = pgpath;
 	mpio->nr_bytes = nr_bytes;
 
-	bio->bi_error = 0;
+	bio->bi_status = 0;
 	bio->bi_bdev = pgpath->path.dev->bdev;
 	bio->bi_opf |= REQ_FAILFAST_TRANSPORT;
 
@@ -623,10 +623,10 @@ static void process_queued_bios(struct work_struct *work)
 		r = __multipath_map_bio(m, bio, get_mpio_from_bio(bio));
 		switch (r) {
 		case DM_MAPIO_KILL:
-			r = -EIO;
-			/*FALLTHRU*/
+			bio->bi_status = BLK_STS_IOERR;
+			bio_endio(bio);
 		case DM_MAPIO_REQUEUE:
-			bio->bi_error = r;
+			bio->bi_status = BLK_STS_DM_REQUEUE;
 			bio_endio(bio);
 			break;
 		case DM_MAPIO_REMAPPED:
@@ -1510,7 +1510,8 @@ static int multipath_end_io(struct dm_target *ti, struct request *clone,
 	return r;
 }
 
-static int multipath_end_io_bio(struct dm_target *ti, struct bio *clone, int *error)
+static int multipath_end_io_bio(struct dm_target *ti, struct bio *clone,
+		blk_status_t *error)
 {
 	struct multipath *m = ti->private;
 	struct dm_mpath_io *mpio = get_mpio_from_bio(clone);
@@ -1518,7 +1519,7 @@ static int multipath_end_io_bio(struct dm_target *ti, struct bio *clone, int *er
 	unsigned long flags;
 	int r = DM_ENDIO_DONE;
 
-	if (!*error || noretry_error(errno_to_blk_status(*error)))
+	if (!*error || noretry_error(*error))
 		goto done;
 
 	if (pgpath)
@@ -1527,7 +1528,7 @@ static int multipath_end_io_bio(struct dm_target *ti, struct bio *clone, int *er
 	if (atomic_read(&m->nr_valid_paths) == 0 &&
 	    !test_bit(MPATHF_QUEUE_IF_NO_PATH, &m->flags)) {
 		dm_report_EIO(m);
-		*error = -EIO;
+		*error = BLK_STS_IOERR;
 		goto done;
 	}
 
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index 77bcf50..0822e4a 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -490,9 +490,9 @@ static void hold_bio(struct mirror_set *ms, struct bio *bio)
 		 * If device is suspended, complete the bio.
 		 */
 		if (dm_noflush_suspending(ms->ti))
-			bio->bi_error = DM_ENDIO_REQUEUE;
+			bio->bi_status = BLK_STS_DM_REQUEUE;
 		else
-			bio->bi_error = -EIO;
+			bio->bi_status = BLK_STS_IOERR;
 
 		bio_endio(bio);
 		return;
@@ -626,7 +626,7 @@ static void write_callback(unsigned long error, void *context)
 	 * degrade the array.
 	 */
 	if (bio_op(bio) == REQ_OP_DISCARD) {
-		bio->bi_error = -EOPNOTSUPP;
+		bio->bi_status = BLK_STS_NOTSUPP;
 		bio_endio(bio);
 		return;
 	}
@@ -1236,7 +1236,8 @@ static int mirror_map(struct dm_target *ti, struct bio *bio)
 	return DM_MAPIO_REMAPPED;
 }
 
-static int mirror_end_io(struct dm_target *ti, struct bio *bio, int *error)
+static int mirror_end_io(struct dm_target *ti, struct bio *bio,
+		blk_status_t *error)
 {
 	int rw = bio_data_dir(bio);
 	struct mirror_set *ms = (struct mirror_set *) ti->private;
@@ -1255,7 +1256,7 @@ static int mirror_end_io(struct dm_target *ti, struct bio *bio, int *error)
 		return DM_ENDIO_DONE;
 	}
 
-	if (*error == -EOPNOTSUPP)
+	if (*error == BLK_STS_NOTSUPP)
 		return DM_ENDIO_DONE;
 
 	if (bio->bi_opf & REQ_RAHEAD)
@@ -1277,7 +1278,7 @@ static int mirror_end_io(struct dm_target *ti, struct bio *bio, int *error)
 			bd = &bio_record->details;
 
 			dm_bio_restore(bd, bio);
-			bio->bi_error = 0;
+			bio->bi_status = 0;
 
 			queue_bio(ms, bio, rw);
 			return DM_ENDIO_INCOMPLETE;
diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c
index 63402f8a..fafd532 100644
--- a/drivers/md/dm-rq.c
+++ b/drivers/md/dm-rq.c
@@ -119,7 +119,7 @@ static void end_clone_bio(struct bio *clone)
 	struct dm_rq_target_io *tio = info->tio;
 	struct bio *bio = info->orig;
 	unsigned int nr_bytes = info->orig->bi_iter.bi_size;
-	blk_status_t error = errno_to_blk_status(clone->bi_error);
+	blk_status_t error = clone->bi_status;
 
 	bio_put(clone);
 
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index 79a84579..1ba4104 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -1590,7 +1590,7 @@ static void full_bio_end_io(struct bio *bio)
 {
 	void *callback_data = bio->bi_private;
 
-	dm_kcopyd_do_callback(callback_data, 0, bio->bi_error ? 1 : 0);
+	dm_kcopyd_do_callback(callback_data, 0, bio->bi_status ? 1 : 0);
 }
 
 static void start_full_bio(struct dm_snap_pending_exception *pe,
@@ -1851,7 +1851,8 @@ static int snapshot_merge_map(struct dm_target *ti, struct bio *bio)
 	return r;
 }
 
-static int snapshot_end_io(struct dm_target *ti, struct bio *bio, int *error)
+static int snapshot_end_io(struct dm_target *ti, struct bio *bio,
+		blk_status_t *error)
 {
 	struct dm_snapshot *s = ti->private;
 
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index 49888bc..11621a0 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -375,7 +375,8 @@ static void stripe_status(struct dm_target *ti, status_type_t type,
 	}
 }
 
-static int stripe_end_io(struct dm_target *ti, struct bio *bio, int *error)
+static int stripe_end_io(struct dm_target *ti, struct bio *bio,
+		blk_status_t *error)
 {
 	unsigned i;
 	char major_minor[16];
@@ -387,7 +388,7 @@ static int stripe_end_io(struct dm_target *ti, struct bio *bio, int *error)
 	if (bio->bi_opf & REQ_RAHEAD)
 		return DM_ENDIO_DONE;
 
-	if (*error == -EOPNOTSUPP)
+	if (*error == BLK_STS_NOTSUPP)
 		return DM_ENDIO_DONE;
 
 	memset(major_minor, 0, sizeof(major_minor));
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 22b1a64..3490b30 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -383,8 +383,8 @@ static void end_discard(struct discard_op *op, int r)
 	 * Even if r is set, there could be sub discards in flight that we
 	 * need to wait for.
 	 */
-	if (r && !op->parent_bio->bi_error)
-		op->parent_bio->bi_error = r;
+	if (r && !op->parent_bio->bi_status)
+		op->parent_bio->bi_status = errno_to_blk_status(r);
 	bio_endio(op->parent_bio);
 }
 
@@ -450,22 +450,20 @@ static void cell_release_no_holder(struct pool *pool,
 }
 
 static void cell_error_with_code(struct pool *pool,
-				 struct dm_bio_prison_cell *cell, int error_code)
+		struct dm_bio_prison_cell *cell, blk_status_t error_code)
 {
 	dm_cell_error(pool->prison, cell, error_code);
 	dm_bio_prison_free_cell(pool->prison, cell);
 }
 
-static int get_pool_io_error_code(struct pool *pool)
+static blk_status_t get_pool_io_error_code(struct pool *pool)
 {
-	return pool->out_of_data_space ? -ENOSPC : -EIO;
+	return pool->out_of_data_space ? BLK_STS_NOSPC : BLK_STS_IOERR;
 }
 
 static void cell_error(struct pool *pool, struct dm_bio_prison_cell *cell)
 {
-	int error = get_pool_io_error_code(pool);
-
-	cell_error_with_code(pool, cell, error);
+	cell_error_with_code(pool, cell, get_pool_io_error_code(pool));
 }
 
 static void cell_success(struct pool *pool, struct dm_bio_prison_cell *cell)
@@ -475,7 +473,7 @@ static void cell_success(struct pool *pool, struct dm_bio_prison_cell *cell)
 
 static void cell_requeue(struct pool *pool, struct dm_bio_prison_cell *cell)
 {
-	cell_error_with_code(pool, cell, DM_ENDIO_REQUEUE);
+	cell_error_with_code(pool, cell, BLK_STS_DM_REQUEUE);
 }
 
 /*----------------------------------------------------------------*/
@@ -555,17 +553,18 @@ static void __merge_bio_list(struct bio_list *bios, struct bio_list *master)
 	bio_list_init(master);
 }
 
-static void error_bio_list(struct bio_list *bios, int error)
+static void error_bio_list(struct bio_list *bios, blk_status_t error)
 {
 	struct bio *bio;
 
 	while ((bio = bio_list_pop(bios))) {
-		bio->bi_error = error;
+		bio->bi_status = error;
 		bio_endio(bio);
 	}
 }
 
-static void error_thin_bio_list(struct thin_c *tc, struct bio_list *master, int error)
+static void error_thin_bio_list(struct thin_c *tc, struct bio_list *master,
+		blk_status_t error)
 {
 	struct bio_list bios;
 	unsigned long flags;
@@ -608,11 +607,11 @@ static void requeue_io(struct thin_c *tc)
 	__merge_bio_list(&bios, &tc->retry_on_resume_list);
 	spin_unlock_irqrestore(&tc->lock, flags);
 
-	error_bio_list(&bios, DM_ENDIO_REQUEUE);
+	error_bio_list(&bios, BLK_STS_DM_REQUEUE);
 	requeue_deferred_cells(tc);
 }
 
-static void error_retry_list_with_code(struct pool *pool, int error)
+static void error_retry_list_with_code(struct pool *pool, blk_status_t error)
 {
 	struct thin_c *tc;
 
@@ -624,9 +623,7 @@ static void error_retry_list_with_code(struct pool *pool, int error)
 
 static void error_retry_list(struct pool *pool)
 {
-	int error = get_pool_io_error_code(pool);
-
-	error_retry_list_with_code(pool, error);
+	error_retry_list_with_code(pool, get_pool_io_error_code(pool));
 }
 
 /*
@@ -774,7 +771,7 @@ struct dm_thin_new_mapping {
 	 */
 	atomic_t prepare_actions;
 
-	int err;
+	blk_status_t status;
 	struct thin_c *tc;
 	dm_block_t virt_begin, virt_end;
 	dm_block_t data_block;
@@ -814,7 +811,7 @@ static void copy_complete(int read_err, unsigned long write_err, void *context)
 {
 	struct dm_thin_new_mapping *m = context;
 
-	m->err = read_err || write_err ? -EIO : 0;
+	m->status = read_err || write_err ? BLK_STS_IOERR : 0;
 	complete_mapping_preparation(m);
 }
 
@@ -825,7 +822,7 @@ static void overwrite_endio(struct bio *bio)
 
 	bio->bi_end_io = m->saved_bi_end_io;
 
-	m->err = bio->bi_error;
+	m->status = bio->bi_status;
 	complete_mapping_preparation(m);
 }
 
@@ -925,7 +922,7 @@ static void process_prepared_mapping(struct dm_thin_new_mapping *m)
 	struct bio *bio = m->bio;
 	int r;
 
-	if (m->err) {
+	if (m->status) {
 		cell_error(pool, m->cell);
 		goto out;
 	}
@@ -1495,7 +1492,7 @@ static void retry_on_resume(struct bio *bio)
 	spin_unlock_irqrestore(&tc->lock, flags);
 }
 
-static int should_error_unserviceable_bio(struct pool *pool)
+static blk_status_t should_error_unserviceable_bio(struct pool *pool)
 {
 	enum pool_mode m = get_pool_mode(pool);
 
@@ -1503,27 +1500,27 @@ static int should_error_unserviceable_bio(struct pool *pool)
 	case PM_WRITE:
 		/* Shouldn't get here */
 		DMERR_LIMIT("bio unserviceable, yet pool is in PM_WRITE mode");
-		return -EIO;
+		return BLK_STS_IOERR;
 
 	case PM_OUT_OF_DATA_SPACE:
-		return pool->pf.error_if_no_space ? -ENOSPC : 0;
+		return pool->pf.error_if_no_space ? BLK_STS_NOSPC : 0;
 
 	case PM_READ_ONLY:
 	case PM_FAIL:
-		return -EIO;
+		return BLK_STS_IOERR;
 	default:
 		/* Shouldn't get here */
 		DMERR_LIMIT("bio unserviceable, yet pool has an unknown mode");
-		return -EIO;
+		return BLK_STS_IOERR;
 	}
 }
 
 static void handle_unserviceable_bio(struct pool *pool, struct bio *bio)
 {
-	int error = should_error_unserviceable_bio(pool);
+	blk_status_t error = should_error_unserviceable_bio(pool);
 
 	if (error) {
-		bio->bi_error = error;
+		bio->bi_status = error;
 		bio_endio(bio);
 	} else
 		retry_on_resume(bio);
@@ -1533,7 +1530,7 @@ static void retry_bios_on_resume(struct pool *pool, struct dm_bio_prison_cell *c
 {
 	struct bio *bio;
 	struct bio_list bios;
-	int error;
+	blk_status_t error;
 
 	error = should_error_unserviceable_bio(pool);
 	if (error) {
@@ -2071,7 +2068,8 @@ static void process_thin_deferred_bios(struct thin_c *tc)
 	unsigned count = 0;
 
 	if (tc->requeue_mode) {
-		error_thin_bio_list(tc, &tc->deferred_bio_list, DM_ENDIO_REQUEUE);
+		error_thin_bio_list(tc, &tc->deferred_bio_list,
+				BLK_STS_DM_REQUEUE);
 		return;
 	}
 
@@ -2322,7 +2320,7 @@ static void do_no_space_timeout(struct work_struct *ws)
 	if (get_pool_mode(pool) == PM_OUT_OF_DATA_SPACE && !pool->pf.error_if_no_space) {
 		pool->pf.error_if_no_space = true;
 		notify_of_pool_mode_change_to_oods(pool);
-		error_retry_list_with_code(pool, -ENOSPC);
+		error_retry_list_with_code(pool, BLK_STS_NOSPC);
 	}
 }
 
@@ -2624,7 +2622,7 @@ static int thin_bio_map(struct dm_target *ti, struct bio *bio)
 	thin_hook_bio(tc, bio);
 
 	if (tc->requeue_mode) {
-		bio->bi_error = DM_ENDIO_REQUEUE;
+		bio->bi_status = BLK_STS_DM_REQUEUE;
 		bio_endio(bio);
 		return DM_MAPIO_SUBMITTED;
 	}
@@ -4177,7 +4175,8 @@ static int thin_map(struct dm_target *ti, struct bio *bio)
 	return thin_bio_map(ti, bio);
 }
 
-static int thin_endio(struct dm_target *ti, struct bio *bio, int *err)
+static int thin_endio(struct dm_target *ti, struct bio *bio,
+		blk_status_t *err)
 {
 	unsigned long flags;
 	struct dm_thin_endio_hook *h = dm_per_bio_data(bio, sizeof(struct dm_thin_endio_hook));
diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c
index 9ed5546..2dca66e 100644
--- a/drivers/md/dm-verity-target.c
+++ b/drivers/md/dm-verity-target.c
@@ -538,13 +538,13 @@ static int verity_verify_io(struct dm_verity_io *io)
 /*
  * End one "io" structure with a given error.
  */
-static void verity_finish_io(struct dm_verity_io *io, int error)
+static void verity_finish_io(struct dm_verity_io *io, blk_status_t status)
 {
 	struct dm_verity *v = io->v;
 	struct bio *bio = dm_bio_from_per_bio_data(io, v->ti->per_io_data_size);
 
 	bio->bi_end_io = io->orig_bi_end_io;
-	bio->bi_error = error;
+	bio->bi_status = status;
 
 	verity_fec_finish_io(io);
 
@@ -555,15 +555,15 @@ static void verity_work(struct work_struct *w)
 {
 	struct dm_verity_io *io = container_of(w, struct dm_verity_io, work);
 
-	verity_finish_io(io, verity_verify_io(io));
+	verity_finish_io(io, errno_to_blk_status(verity_verify_io(io)));
 }
 
 static void verity_end_io(struct bio *bio)
 {
 	struct dm_verity_io *io = bio->bi_private;
 
-	if (bio->bi_error && !verity_fec_is_enabled(io->v)) {
-		verity_finish_io(io, bio->bi_error);
+	if (bio->bi_status && !verity_fec_is_enabled(io->v)) {
+		verity_finish_io(io, bio->bi_status);
 		return;
 	}
 
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 7a704721..f38f9dd 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -63,7 +63,7 @@ static struct workqueue_struct *deferred_remove_workqueue;
  */
 struct dm_io {
 	struct mapped_device *md;
-	int error;
+	blk_status_t status;
 	atomic_t io_count;
 	struct bio *bio;
 	unsigned long start_time;
@@ -768,23 +768,24 @@ static int __noflush_suspending(struct mapped_device *md)
  * Decrements the number of outstanding ios that a bio has been
  * cloned into, completing the original io if necc.
  */
-static void dec_pending(struct dm_io *io, int error)
+static void dec_pending(struct dm_io *io, blk_status_t error)
 {
 	unsigned long flags;
-	int io_error;
+	blk_status_t io_error;
 	struct bio *bio;
 	struct mapped_device *md = io->md;
 
 	/* Push-back supersedes any I/O errors */
 	if (unlikely(error)) {
 		spin_lock_irqsave(&io->endio_lock, flags);
-		if (!(io->error > 0 && __noflush_suspending(md)))
-			io->error = error;
+		if (!(io->status == BLK_STS_DM_REQUEUE &&
+				__noflush_suspending(md)))
+			io->status = error;
 		spin_unlock_irqrestore(&io->endio_lock, flags);
 	}
 
 	if (atomic_dec_and_test(&io->io_count)) {
-		if (io->error == DM_ENDIO_REQUEUE) {
+		if (io->status == BLK_STS_DM_REQUEUE) {
 			/*
 			 * Target requested pushing back the I/O.
 			 */
@@ -793,16 +794,16 @@ static void dec_pending(struct dm_io *io, int error)
 				bio_list_add_head(&md->deferred, io->bio);
 			else
 				/* noflush suspend was interrupted. */
-				io->error = -EIO;
+				io->status = BLK_STS_IOERR;
 			spin_unlock_irqrestore(&md->deferred_lock, flags);
 		}
 
-		io_error = io->error;
+		io_error = io->status;
 		bio = io->bio;
 		end_io_acct(io);
 		free_io(md, io);
 
-		if (io_error == DM_ENDIO_REQUEUE)
+		if (io_error == BLK_STS_DM_REQUEUE)
 			return;
 
 		if ((bio->bi_opf & REQ_PREFLUSH) && bio->bi_iter.bi_size) {
@@ -814,7 +815,7 @@ static void dec_pending(struct dm_io *io, int error)
 			queue_io(md, bio);
 		} else {
 			/* done with normal IO or empty flush */
-			bio->bi_error = io_error;
+			bio->bi_status = io_error;
 			bio_endio(bio);
 		}
 	}
@@ -838,14 +839,13 @@ void disable_write_zeroes(struct mapped_device *md)
 
 static void clone_endio(struct bio *bio)
 {
-	int error = bio->bi_error;
-	int r = error;
+	blk_status_t error = bio->bi_status;
 	struct dm_target_io *tio = container_of(bio, struct dm_target_io, clone);
 	struct dm_io *io = tio->io;
 	struct mapped_device *md = tio->io->md;
 	dm_endio_fn endio = tio->ti->type->end_io;
 
-	if (unlikely(error == -EREMOTEIO)) {
+	if (unlikely(error == BLK_STS_TARGET)) {
 		if (bio_op(bio) == REQ_OP_WRITE_SAME &&
 		    !bdev_get_queue(bio->bi_bdev)->limits.max_write_same_sectors)
 			disable_write_same(md);
@@ -855,10 +855,10 @@ static void clone_endio(struct bio *bio)
 	}
 
 	if (endio) {
-		r = endio(tio->ti, bio, &error);
+		int r = endio(tio->ti, bio, &error);
 		switch (r) {
 		case DM_ENDIO_REQUEUE:
-			error = DM_ENDIO_REQUEUE;
+			error = BLK_STS_DM_REQUEUE;
 			/*FALLTHRU*/
 		case DM_ENDIO_DONE:
 			break;
@@ -1094,11 +1094,11 @@ static void __map_bio(struct dm_target_io *tio)
 		generic_make_request(clone);
 		break;
 	case DM_MAPIO_KILL:
-		r = -EIO;
-		/*FALLTHRU*/
+		dec_pending(tio->io, BLK_STS_IOERR);
+		free_tio(tio);
+		break;
 	case DM_MAPIO_REQUEUE:
-		/* error the io and bail out, or requeue it if needed */
-		dec_pending(tio->io, r);
+		dec_pending(tio->io, BLK_STS_DM_REQUEUE);
 		free_tio(tio);
 		break;
 	default:
@@ -1366,7 +1366,7 @@ static void __split_and_process_bio(struct mapped_device *md,
 	ci.map = map;
 	ci.md = md;
 	ci.io = alloc_io(md);
-	ci.io->error = 0;
+	ci.io->status = 0;
 	atomic_set(&ci.io->io_count, 1);
 	ci.io->bio = bio;
 	ci.io->md = md;
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 10367ff..6452e83 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -273,7 +273,7 @@ static blk_qc_t md_make_request(struct request_queue *q, struct bio *bio)
 	}
 	if (mddev->ro == 1 && unlikely(rw == WRITE)) {
 		if (bio_sectors(bio) != 0)
-			bio->bi_error = -EROFS;
+			bio->bi_status = BLK_STS_IOERR;
 		bio_endio(bio);
 		return BLK_QC_T_NONE;
 	}
@@ -719,8 +719,8 @@ static void super_written(struct bio *bio)
 	struct md_rdev *rdev = bio->bi_private;
 	struct mddev *mddev = rdev->mddev;
 
-	if (bio->bi_error) {
-		pr_err("md: super_written gets error=%d\n", bio->bi_error);
+	if (bio->bi_status) {
+		pr_err("md: super_written gets error=%d\n", bio->bi_status);
 		md_error(mddev, rdev);
 		if (!test_bit(Faulty, &rdev->flags)
 		    && (bio->bi_opf & MD_FAILFAST)) {
@@ -801,7 +801,7 @@ int sync_page_io(struct md_rdev *rdev, sector_t sector, int size,
 
 	submit_bio_wait(bio);
 
-	ret = !bio->bi_error;
+	ret = !bio->bi_status;
 	bio_put(bio);
 	return ret;
 }
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index e95d521..68d036e 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -73,12 +73,12 @@ static void multipath_reschedule_retry (struct multipath_bh *mp_bh)
  * operation and are ready to return a success/failure code to the buffer
  * cache layer.
  */
-static void multipath_end_bh_io (struct multipath_bh *mp_bh, int err)
+static void multipath_end_bh_io(struct multipath_bh *mp_bh, blk_status_t status)
 {
 	struct bio *bio = mp_bh->master_bio;
 	struct mpconf *conf = mp_bh->mddev->private;
 
-	bio->bi_error = err;
+	bio->bi_status = status;
 	bio_endio(bio);
 	mempool_free(mp_bh, conf->pool);
 }
@@ -89,7 +89,7 @@ static void multipath_end_request(struct bio *bio)
 	struct mpconf *conf = mp_bh->mddev->private;
 	struct md_rdev *rdev = conf->multipaths[mp_bh->path].rdev;
 
-	if (!bio->bi_error)
+	if (!bio->bi_status)
 		multipath_end_bh_io(mp_bh, 0);
 	else if (!(bio->bi_opf & REQ_RAHEAD)) {
 		/*
@@ -102,7 +102,7 @@ static void multipath_end_request(struct bio *bio)
 			(unsigned long long)bio->bi_iter.bi_sector);
 		multipath_reschedule_retry(mp_bh);
 	} else
-		multipath_end_bh_io(mp_bh, bio->bi_error);
+		multipath_end_bh_io(mp_bh, bio->bi_status);
 	rdev_dec_pending(rdev, conf->mddev);
 }
 
@@ -347,7 +347,7 @@ static void multipathd(struct md_thread *thread)
 			pr_err("multipath: %s: unrecoverable IO read error for block %llu\n",
 			       bdevname(bio->bi_bdev,b),
 			       (unsigned long long)bio->bi_iter.bi_sector);
-			multipath_end_bh_io(mp_bh, -EIO);
+			multipath_end_bh_io(mp_bh, BLK_STS_IOERR);
 		} else {
 			pr_err("multipath: %s: redirecting sector %llu to another IO path\n",
 			       bdevname(bio->bi_bdev,b),
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index af5056d..94b87c4 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -277,7 +277,7 @@ static void call_bio_endio(struct r1bio *r1_bio)
 	struct r1conf *conf = r1_bio->mddev->private;
 
 	if (!test_bit(R1BIO_Uptodate, &r1_bio->state))
-		bio->bi_error = -EIO;
+		bio->bi_status = BLK_STS_IOERR;
 
 	bio_endio(bio);
 	/*
@@ -335,7 +335,7 @@ static int find_bio_disk(struct r1bio *r1_bio, struct bio *bio)
 
 static void raid1_end_read_request(struct bio *bio)
 {
-	int uptodate = !bio->bi_error;
+	int uptodate = !bio->bi_status;
 	struct r1bio *r1_bio = bio->bi_private;
 	struct r1conf *conf = r1_bio->mddev->private;
 	struct md_rdev *rdev = conf->mirrors[r1_bio->read_disk].rdev;
@@ -426,12 +426,12 @@ static void raid1_end_write_request(struct bio *bio)
 	struct md_rdev *rdev = conf->mirrors[mirror].rdev;
 	bool discard_error;
 
-	discard_error = bio->bi_error && bio_op(bio) == REQ_OP_DISCARD;
+	discard_error = bio->bi_status && bio_op(bio) == REQ_OP_DISCARD;
 
 	/*
 	 * 'one mirror IO has finished' event handler:
 	 */
-	if (bio->bi_error && !discard_error) {
+	if (bio->bi_status && !discard_error) {
 		set_bit(WriteErrorSeen,	&rdev->flags);
 		if (!test_and_set_bit(WantReplacement, &rdev->flags))
 			set_bit(MD_RECOVERY_NEEDED, &
@@ -802,7 +802,7 @@ static void flush_bio_list(struct r1conf *conf, struct bio *bio)
 		bio->bi_next = NULL;
 		bio->bi_bdev = rdev->bdev;
 		if (test_bit(Faulty, &rdev->flags)) {
-			bio->bi_error = -EIO;
+			bio->bi_status = BLK_STS_IOERR;
 			bio_endio(bio);
 		} else if (unlikely((bio_op(bio) == REQ_OP_DISCARD) &&
 				    !blk_queue_discard(bdev_get_queue(bio->bi_bdev))))
@@ -1856,7 +1856,7 @@ static void end_sync_read(struct bio *bio)
 	 * or re-read if the read failed.
 	 * We don't do much here, just schedule handling by raid1d
 	 */
-	if (!bio->bi_error)
+	if (!bio->bi_status)
 		set_bit(R1BIO_Uptodate, &r1_bio->state);
 
 	if (atomic_dec_and_test(&r1_bio->remaining))
@@ -1865,7 +1865,7 @@ static void end_sync_read(struct bio *bio)
 
 static void end_sync_write(struct bio *bio)
 {
-	int uptodate = !bio->bi_error;
+	int uptodate = !bio->bi_status;
 	struct r1bio *r1_bio = get_resync_r1bio(bio);
 	struct mddev *mddev = r1_bio->mddev;
 	struct r1conf *conf = mddev->private;
@@ -2058,7 +2058,7 @@ static int fix_sync_read_error(struct r1bio *r1_bio)
 		idx ++;
 	}
 	set_bit(R1BIO_Uptodate, &r1_bio->state);
-	bio->bi_error = 0;
+	bio->bi_status = 0;
 	return 1;
 }
 
@@ -2082,16 +2082,16 @@ static void process_checks(struct r1bio *r1_bio)
 	for (i = 0; i < conf->raid_disks * 2; i++) {
 		int j;
 		int size;
-		int error;
+		blk_status_t status;
 		struct bio_vec *bi;
 		struct bio *b = r1_bio->bios[i];
 		struct resync_pages *rp = get_resync_pages(b);
 		if (b->bi_end_io != end_sync_read)
 			continue;
 		/* fixup the bio for reuse, but preserve errno */
-		error = b->bi_error;
+		status = b->bi_status;
 		bio_reset(b);
-		b->bi_error = error;
+		b->bi_status = status;
 		b->bi_vcnt = vcnt;
 		b->bi_iter.bi_size = r1_bio->sectors << 9;
 		b->bi_iter.bi_sector = r1_bio->sector +
@@ -2113,7 +2113,7 @@ static void process_checks(struct r1bio *r1_bio)
 	}
 	for (primary = 0; primary < conf->raid_disks * 2; primary++)
 		if (r1_bio->bios[primary]->bi_end_io == end_sync_read &&
-		    !r1_bio->bios[primary]->bi_error) {
+		    !r1_bio->bios[primary]->bi_status) {
 			r1_bio->bios[primary]->bi_end_io = NULL;
 			rdev_dec_pending(conf->mirrors[primary].rdev, mddev);
 			break;
@@ -2123,7 +2123,7 @@ static void process_checks(struct r1bio *r1_bio)
 		int j;
 		struct bio *pbio = r1_bio->bios[primary];
 		struct bio *sbio = r1_bio->bios[i];
-		int error = sbio->bi_error;
+		blk_status_t status = sbio->bi_status;
 		struct page **ppages = get_resync_pages(pbio)->pages;
 		struct page **spages = get_resync_pages(sbio)->pages;
 		struct bio_vec *bi;
@@ -2132,12 +2132,12 @@ static void process_checks(struct r1bio *r1_bio)
 		if (sbio->bi_end_io != end_sync_read)
 			continue;
 		/* Now we can 'fixup' the error value */
-		sbio->bi_error = 0;
+		sbio->bi_status = 0;
 
 		bio_for_each_segment_all(bi, sbio, j)
 			page_len[j] = bi->bv_len;
 
-		if (!error) {
+		if (!status) {
 			for (j = vcnt; j-- ; ) {
 				if (memcmp(page_address(ppages[j]),
 					   page_address(spages[j]),
@@ -2149,7 +2149,7 @@ static void process_checks(struct r1bio *r1_bio)
 		if (j >= 0)
 			atomic64_add(r1_bio->sectors, &mddev->resync_mismatches);
 		if (j < 0 || (test_bit(MD_RECOVERY_CHECK, &mddev->recovery)
-			      && !error)) {
+			      && !status)) {
 			/* No need to write to this device. */
 			sbio->bi_end_io = NULL;
 			rdev_dec_pending(conf->mirrors[i].rdev, mddev);
@@ -2400,11 +2400,11 @@ static void handle_sync_write_finished(struct r1conf *conf, struct r1bio *r1_bio
 		struct bio *bio = r1_bio->bios[m];
 		if (bio->bi_end_io == NULL)
 			continue;
-		if (!bio->bi_error &&
+		if (!bio->bi_status &&
 		    test_bit(R1BIO_MadeGood, &r1_bio->state)) {
 			rdev_clear_badblocks(rdev, r1_bio->sector, s, 0);
 		}
-		if (bio->bi_error &&
+		if (bio->bi_status &&
 		    test_bit(R1BIO_WriteError, &r1_bio->state)) {
 			if (!rdev_set_badblocks(rdev, r1_bio->sector, s, 0))
 				md_error(conf->mddev, rdev);
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 4343d7f..89ad1cd 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -336,7 +336,7 @@ static void raid_end_bio_io(struct r10bio *r10_bio)
 	struct r10conf *conf = r10_bio->mddev->private;
 
 	if (!test_bit(R10BIO_Uptodate, &r10_bio->state))
-		bio->bi_error = -EIO;
+		bio->bi_status = BLK_STS_IOERR;
 
 	bio_endio(bio);
 	/*
@@ -389,7 +389,7 @@ static int find_bio_disk(struct r10conf *conf, struct r10bio *r10_bio,
 
 static void raid10_end_read_request(struct bio *bio)
 {
-	int uptodate = !bio->bi_error;
+	int uptodate = !bio->bi_status;
 	struct r10bio *r10_bio = bio->bi_private;
 	int slot, dev;
 	struct md_rdev *rdev;
@@ -477,7 +477,7 @@ static void raid10_end_write_request(struct bio *bio)
 	struct bio *to_put = NULL;
 	bool discard_error;
 
-	discard_error = bio->bi_error && bio_op(bio) == REQ_OP_DISCARD;
+	discard_error = bio->bi_status && bio_op(bio) == REQ_OP_DISCARD;
 
 	dev = find_bio_disk(conf, r10_bio, bio, &slot, &repl);
 
@@ -491,7 +491,7 @@ static void raid10_end_write_request(struct bio *bio)
 	/*
 	 * this branch is our 'one mirror IO has finished' event handler:
 	 */
-	if (bio->bi_error && !discard_error) {
+	if (bio->bi_status && !discard_error) {
 		if (repl)
 			/* Never record new bad blocks to replacement,
 			 * just fail it.
@@ -913,7 +913,7 @@ static void flush_pending_writes(struct r10conf *conf)
 			bio->bi_next = NULL;
 			bio->bi_bdev = rdev->bdev;
 			if (test_bit(Faulty, &rdev->flags)) {
-				bio->bi_error = -EIO;
+				bio->bi_status = BLK_STS_IOERR;
 				bio_endio(bio);
 			} else if (unlikely((bio_op(bio) ==  REQ_OP_DISCARD) &&
 					    !blk_queue_discard(bdev_get_queue(bio->bi_bdev))))
@@ -1098,7 +1098,7 @@ static void raid10_unplug(struct blk_plug_cb *cb, bool from_schedule)
 		bio->bi_next = NULL;
 		bio->bi_bdev = rdev->bdev;
 		if (test_bit(Faulty, &rdev->flags)) {
-			bio->bi_error = -EIO;
+			bio->bi_status = BLK_STS_IOERR;
 			bio_endio(bio);
 		} else if (unlikely((bio_op(bio) ==  REQ_OP_DISCARD) &&
 				    !blk_queue_discard(bdev_get_queue(bio->bi_bdev))))
@@ -1888,7 +1888,7 @@ static void __end_sync_read(struct r10bio *r10_bio, struct bio *bio, int d)
 {
 	struct r10conf *conf = r10_bio->mddev->private;
 
-	if (!bio->bi_error)
+	if (!bio->bi_status)
 		set_bit(R10BIO_Uptodate, &r10_bio->state);
 	else
 		/* The write handler will notice the lack of
@@ -1972,7 +1972,7 @@ static void end_sync_write(struct bio *bio)
 	else
 		rdev = conf->mirrors[d].rdev;
 
-	if (bio->bi_error) {
+	if (bio->bi_status) {
 		if (repl)
 			md_error(mddev, rdev);
 		else {
@@ -2021,7 +2021,7 @@ static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio)
 
 	/* find the first device with a block */
 	for (i=0; i<conf->copies; i++)
-		if (!r10_bio->devs[i].bio->bi_error)
+		if (!r10_bio->devs[i].bio->bi_status)
 			break;
 
 	if (i == conf->copies)
@@ -2050,7 +2050,7 @@ static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio)
 		tpages = get_resync_pages(tbio)->pages;
 		d = r10_bio->devs[i].devnum;
 		rdev = conf->mirrors[d].rdev;
-		if (!r10_bio->devs[i].bio->bi_error) {
+		if (!r10_bio->devs[i].bio->bi_status) {
 			/* We know that the bi_io_vec layout is the same for
 			 * both 'first' and 'i', so we just compare them.
 			 * All vec entries are PAGE_SIZE;
@@ -2633,7 +2633,7 @@ static void handle_write_completed(struct r10conf *conf, struct r10bio *r10_bio)
 			rdev = conf->mirrors[dev].rdev;
 			if (r10_bio->devs[m].bio == NULL)
 				continue;
-			if (!r10_bio->devs[m].bio->bi_error) {
+			if (!r10_bio->devs[m].bio->bi_status) {
 				rdev_clear_badblocks(
 					rdev,
 					r10_bio->devs[m].addr,
@@ -2649,7 +2649,7 @@ static void handle_write_completed(struct r10conf *conf, struct r10bio *r10_bio)
 			if (r10_bio->devs[m].repl_bio == NULL)
 				continue;
 
-			if (!r10_bio->devs[m].repl_bio->bi_error) {
+			if (!r10_bio->devs[m].repl_bio->bi_status) {
 				rdev_clear_badblocks(
 					rdev,
 					r10_bio->devs[m].addr,
@@ -2675,7 +2675,7 @@ static void handle_write_completed(struct r10conf *conf, struct r10bio *r10_bio)
 					r10_bio->devs[m].addr,
 					r10_bio->sectors, 0);
 				rdev_dec_pending(rdev, conf->mddev);
-			} else if (bio != NULL && bio->bi_error) {
+			} else if (bio != NULL && bio->bi_status) {
 				fail = true;
 				if (!narrow_write_error(r10_bio, m)) {
 					md_error(conf->mddev, rdev);
@@ -3267,7 +3267,7 @@ static sector_t raid10_sync_request(struct mddev *mddev, sector_t sector_nr,
 				r10_bio->devs[i].repl_bio->bi_end_io = NULL;
 
 			bio = r10_bio->devs[i].bio;
-			bio->bi_error = -EIO;
+			bio->bi_status = BLK_STS_IOERR;
 			rcu_read_lock();
 			rdev = rcu_dereference(conf->mirrors[d].rdev);
 			if (rdev == NULL || test_bit(Faulty, &rdev->flags)) {
@@ -3309,7 +3309,7 @@ static sector_t raid10_sync_request(struct mddev *mddev, sector_t sector_nr,
 
 			/* Need to set up for writing to the replacement */
 			bio = r10_bio->devs[i].repl_bio;
-			bio->bi_error = -EIO;
+			bio->bi_status = BLK_STS_IOERR;
 
 			sector = r10_bio->devs[i].addr;
 			bio->bi_next = biolist;
@@ -3375,7 +3375,7 @@ static sector_t raid10_sync_request(struct mddev *mddev, sector_t sector_nr,
 
 		if (bio->bi_end_io == end_sync_read) {
 			md_sync_acct(bio->bi_bdev, nr_sectors);
-			bio->bi_error = 0;
+			bio->bi_status = 0;
 			generic_make_request(bio);
 		}
 	}
@@ -4394,7 +4394,7 @@ static sector_t reshape_request(struct mddev *mddev, sector_t sector_nr,
 	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_error = 0;
+	read_bio->bi_status = 0;
 	read_bio->bi_vcnt = 0;
 	read_bio->bi_iter.bi_size = 0;
 	r10_bio->master_bio = read_bio;
@@ -4638,7 +4638,7 @@ static void end_reshape_write(struct bio *bio)
 		rdev = conf->mirrors[d].rdev;
 	}
 
-	if (bio->bi_error) {
+	if (bio->bi_status) {
 		/* FIXME should record badblock */
 		md_error(mddev, rdev);
 	}
diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c
index 4c00bc2..3ed6a0d 100644
--- a/drivers/md/raid5-cache.c
+++ b/drivers/md/raid5-cache.c
@@ -572,7 +572,7 @@ static void r5l_log_endio(struct bio *bio)
 	struct r5l_log *log = io->log;
 	unsigned long flags;
 
-	if (bio->bi_error)
+	if (bio->bi_status)
 		md_error(log->rdev->mddev, log->rdev);
 
 	bio_put(bio);
@@ -1247,7 +1247,7 @@ static void r5l_log_flush_endio(struct bio *bio)
 	unsigned long flags;
 	struct r5l_io_unit *io;
 
-	if (bio->bi_error)
+	if (bio->bi_status)
 		md_error(log->rdev->mddev, log->rdev);
 
 	spin_lock_irqsave(&log->io_list_lock, flags);
diff --git a/drivers/md/raid5-ppl.c b/drivers/md/raid5-ppl.c
index 5d25beb..09e04be 100644
--- a/drivers/md/raid5-ppl.c
+++ b/drivers/md/raid5-ppl.c
@@ -397,7 +397,7 @@ static void ppl_log_endio(struct bio *bio)
 
 	pr_debug("%s: seq: %llu\n", __func__, io->seq);
 
-	if (bio->bi_error)
+	if (bio->bi_status)
 		md_error(ppl_conf->mddev, log->rdev);
 
 	list_for_each_entry_safe(sh, next, &io->stripe_list, log_list) {
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 9c4f765..e1bdc32 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -2476,7 +2476,7 @@ static void raid5_end_read_request(struct bio * bi)
 
 	pr_debug("end_read_request %llu/%d, count: %d, error %d.\n",
 		(unsigned long long)sh->sector, i, atomic_read(&sh->count),
-		bi->bi_error);
+		bi->bi_status);
 	if (i == disks) {
 		bio_reset(bi);
 		BUG();
@@ -2496,7 +2496,7 @@ static void raid5_end_read_request(struct bio * bi)
 		s = sh->sector + rdev->new_data_offset;
 	else
 		s = sh->sector + rdev->data_offset;
-	if (!bi->bi_error) {
+	if (!bi->bi_status) {
 		set_bit(R5_UPTODATE, &sh->dev[i].flags);
 		if (test_bit(R5_ReadError, &sh->dev[i].flags)) {
 			/* Note that this cannot happen on a
@@ -2613,7 +2613,7 @@ static void raid5_end_write_request(struct bio *bi)
 	}
 	pr_debug("end_write_request %llu/%d, count %d, error: %d.\n",
 		(unsigned long long)sh->sector, i, atomic_read(&sh->count),
-		bi->bi_error);
+		bi->bi_status);
 	if (i == disks) {
 		bio_reset(bi);
 		BUG();
@@ -2621,14 +2621,14 @@ static void raid5_end_write_request(struct bio *bi)
 	}
 
 	if (replacement) {
-		if (bi->bi_error)
+		if (bi->bi_status)
 			md_error(conf->mddev, rdev);
 		else if (is_badblock(rdev, sh->sector,
 				     STRIPE_SECTORS,
 				     &first_bad, &bad_sectors))
 			set_bit(R5_MadeGoodRepl, &sh->dev[i].flags);
 	} else {
-		if (bi->bi_error) {
+		if (bi->bi_status) {
 			set_bit(STRIPE_DEGRADED, &sh->state);
 			set_bit(WriteErrorSeen, &rdev->flags);
 			set_bit(R5_WriteError, &sh->dev[i].flags);
@@ -2649,7 +2649,7 @@ static void raid5_end_write_request(struct bio *bi)
 	}
 	rdev_dec_pending(rdev, conf->mddev);
 
-	if (sh->batch_head && bi->bi_error && !replacement)
+	if (sh->batch_head && bi->bi_status && !replacement)
 		set_bit(STRIPE_BATCH_ERR, &sh->batch_head->state);
 
 	bio_reset(bi);
@@ -3381,7 +3381,7 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh,
 			sh->dev[i].sector + STRIPE_SECTORS) {
 			struct bio *nextbi = r5_next_bio(bi, sh->dev[i].sector);
 
-			bi->bi_error = -EIO;
+			bi->bi_status = BLK_STS_IOERR;
 			md_write_end(conf->mddev);
 			bio_endio(bi);
 			bi = nextbi;
@@ -3403,7 +3403,7 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh,
 		       sh->dev[i].sector + STRIPE_SECTORS) {
 			struct bio *bi2 = r5_next_bio(bi, sh->dev[i].sector);
 
-			bi->bi_error = -EIO;
+			bi->bi_status = BLK_STS_IOERR;
 			md_write_end(conf->mddev);
 			bio_endio(bi);
 			bi = bi2;
@@ -3429,7 +3429,7 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh,
 				struct bio *nextbi =
 					r5_next_bio(bi, sh->dev[i].sector);
 
-				bi->bi_error = -EIO;
+				bi->bi_status = BLK_STS_IOERR;
 				bio_endio(bi);
 				bi = nextbi;
 			}
@@ -5144,7 +5144,7 @@ static void raid5_align_endio(struct bio *bi)
 	struct mddev *mddev;
 	struct r5conf *conf;
 	struct md_rdev *rdev;
-	int error = bi->bi_error;
+	blk_status_t error = bi->bi_status;
 
 	bio_put(bi);
 
@@ -5721,7 +5721,7 @@ static void raid5_make_request(struct mddev *mddev, struct bio * bi)
 			release_stripe_plug(mddev, sh);
 		} else {
 			/* cannot get stripe for read-ahead, just give-up */
-			bi->bi_error = -EIO;
+			bi->bi_status = BLK_STS_IOERR;
 			break;
 		}
 	}
diff --git a/drivers/nvdimm/blk.c b/drivers/nvdimm/blk.c
index 822198a..79eb9fb 100644
--- a/drivers/nvdimm/blk.c
+++ b/drivers/nvdimm/blk.c
@@ -186,7 +186,7 @@ static blk_qc_t nd_blk_make_request(struct request_queue *q, struct bio *bio)
 	 * another kernel subsystem, and we just pass it through.
 	 */
 	if (bio_integrity_enabled(bio) && bio_integrity_prep(bio)) {
-		bio->bi_error = -EIO;
+		bio->bi_status = BLK_STS_IOERR;
 		goto out;
 	}
 
@@ -205,7 +205,7 @@ static blk_qc_t nd_blk_make_request(struct request_queue *q, struct bio *bio)
 					"io error in %s sector %lld, len %d,\n",
 					(rw == READ) ? "READ" : "WRITE",
 					(unsigned long long) iter.bi_sector, len);
-			bio->bi_error = err;
+			bio->bi_status = errno_to_blk_status(err);
 			break;
 		}
 	}
diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c
index 983718b..31b2d14 100644
--- a/drivers/nvdimm/btt.c
+++ b/drivers/nvdimm/btt.c
@@ -1210,7 +1210,7 @@ static blk_qc_t btt_make_request(struct request_queue *q, struct bio *bio)
 	 * another kernel subsystem, and we just pass it through.
 	 */
 	if (bio_integrity_enabled(bio) && bio_integrity_prep(bio)) {
-		bio->bi_error = -EIO;
+		bio->bi_status = BLK_STS_IOERR;
 		goto out;
 	}
 
@@ -1232,7 +1232,7 @@ static blk_qc_t btt_make_request(struct request_queue *q, struct bio *bio)
 					(op_is_write(bio_op(bio))) ? "WRITE" :
 					"READ",
 					(unsigned long long) iter.bi_sector, len);
-			bio->bi_error = err;
+			bio->bi_status = errno_to_blk_status(err);
 			break;
 		}
 	}
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index c544d46..7bd383a 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -49,19 +49,19 @@ static struct nd_region *to_region(struct pmem_device *pmem)
 	return to_nd_region(to_dev(pmem)->parent);
 }
 
-static int pmem_clear_poison(struct pmem_device *pmem, phys_addr_t offset,
-		unsigned int len)
+static blk_status_t pmem_clear_poison(struct pmem_device *pmem,
+		phys_addr_t offset, unsigned int len)
 {
 	struct device *dev = to_dev(pmem);
 	sector_t sector;
 	long cleared;
-	int rc = 0;
+	blk_status_t rc = BLK_STS_OK;
 
 	sector = (offset - pmem->data_offset) / 512;
 
 	cleared = nvdimm_clear_poison(dev, pmem->phys_addr + offset, len);
 	if (cleared < len)
-		rc = -EIO;
+		rc = BLK_STS_IOERR;
 	if (cleared > 0 && cleared / 512) {
 		cleared /= 512;
 		dev_dbg(dev, "%s: %#llx clear %ld sector%s\n", __func__,
@@ -84,7 +84,7 @@ static void write_pmem(void *pmem_addr, struct page *page,
 	kunmap_atomic(mem);
 }
 
-static int read_pmem(struct page *page, unsigned int off,
+static blk_status_t read_pmem(struct page *page, unsigned int off,
 		void *pmem_addr, unsigned int len)
 {
 	int rc;
@@ -93,15 +93,15 @@ static int read_pmem(struct page *page, unsigned int off,
 	rc = memcpy_mcsafe(mem + off, pmem_addr, len);
 	kunmap_atomic(mem);
 	if (rc)
-		return -EIO;
-	return 0;
+		return BLK_STS_IOERR;
+	return BLK_STS_OK;
 }
 
-static int pmem_do_bvec(struct pmem_device *pmem, struct page *page,
+static blk_status_t pmem_do_bvec(struct pmem_device *pmem, struct page *page,
 			unsigned int len, unsigned int off, bool is_write,
 			sector_t sector)
 {
-	int rc = 0;
+	blk_status_t rc = BLK_STS_OK;
 	bool bad_pmem = false;
 	phys_addr_t pmem_off = sector * 512 + pmem->data_offset;
 	void *pmem_addr = pmem->virt_addr + pmem_off;
@@ -111,7 +111,7 @@ static int pmem_do_bvec(struct pmem_device *pmem, struct page *page,
 
 	if (!is_write) {
 		if (unlikely(bad_pmem))
-			rc = -EIO;
+			rc = BLK_STS_IOERR;
 		else {
 			rc = read_pmem(page, off, pmem_addr, len);
 			flush_dcache_page(page);
@@ -149,7 +149,7 @@ static int pmem_do_bvec(struct pmem_device *pmem, struct page *page,
 
 static blk_qc_t pmem_make_request(struct request_queue *q, struct bio *bio)
 {
-	int rc = 0;
+	blk_status_t rc = 0;
 	bool do_acct;
 	unsigned long start;
 	struct bio_vec bvec;
@@ -166,7 +166,7 @@ static blk_qc_t pmem_make_request(struct request_queue *q, struct bio *bio)
 				bvec.bv_offset, op_is_write(bio_op(bio)),
 				iter.bi_sector);
 		if (rc) {
-			bio->bi_error = rc;
+			bio->bi_status = rc;
 			break;
 		}
 	}
@@ -184,7 +184,7 @@ static int pmem_rw_page(struct block_device *bdev, sector_t sector,
 		       struct page *page, bool is_write)
 {
 	struct pmem_device *pmem = bdev->bd_queue->queuedata;
-	int rc;
+	blk_status_t rc;
 
 	rc = pmem_do_bvec(pmem, page, PAGE_SIZE, 0, is_write, sector);
 
@@ -197,7 +197,7 @@ static int pmem_rw_page(struct block_device *bdev, sector_t sector,
 	if (rc == 0)
 		page_endio(page, is_write, 0);
 
-	return rc;
+	return blk_status_to_errno(rc);
 }
 
 /* see "strong" declaration in tools/testing/nvdimm/pmem-dax.c */
diff --git a/drivers/nvme/target/io-cmd.c b/drivers/nvme/target/io-cmd.c
index c77940d..4012879 100644
--- a/drivers/nvme/target/io-cmd.c
+++ b/drivers/nvme/target/io-cmd.c
@@ -21,7 +21,7 @@ static void nvmet_bio_done(struct bio *bio)
 	struct nvmet_req *req = bio->bi_private;
 
 	nvmet_req_complete(req,
-		bio->bi_error ? NVME_SC_INTERNAL | NVME_SC_DNR : 0);
+		bio->bi_status ? NVME_SC_INTERNAL | NVME_SC_DNR : 0);
 
 	if (bio != &req->inline_bio)
 		bio_put(bio);
@@ -145,7 +145,7 @@ static void nvmet_execute_discard(struct nvmet_req *req)
 		bio->bi_private = req;
 		bio->bi_end_io = nvmet_bio_done;
 		if (status) {
-			bio->bi_error = -EIO;
+			bio->bi_status = BLK_STS_IOERR;
 			bio_endio(bio);
 		} else {
 			submit_bio(bio);
diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index bb069eb..7537362 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -296,8 +296,8 @@ static void iblock_bio_done(struct bio *bio)
 	struct se_cmd *cmd = bio->bi_private;
 	struct iblock_req *ibr = cmd->priv;
 
-	if (bio->bi_error) {
-		pr_err("bio error: %p,  err: %d\n", bio, bio->bi_error);
+	if (bio->bi_status) {
+		pr_err("bio error: %p,  err: %d\n", bio, bio->bi_status);
 		/*
 		 * Bump the ib_bio_err_cnt and release bio.
 		 */
@@ -354,11 +354,11 @@ static void iblock_end_io_flush(struct bio *bio)
 {
 	struct se_cmd *cmd = bio->bi_private;
 
-	if (bio->bi_error)
-		pr_err("IBLOCK: cache flush failed: %d\n", bio->bi_error);
+	if (bio->bi_status)
+		pr_err("IBLOCK: cache flush failed: %d\n", bio->bi_status);
 
 	if (cmd) {
-		if (bio->bi_error)
+		if (bio->bi_status)
 			target_complete_cmd(cmd, SAM_STAT_CHECK_CONDITION);
 		else
 			target_complete_cmd(cmd, SAM_STAT_GOOD);