diff --git a/block/blk-core.c b/block/blk-core.c
index 3d93aaa9a49b..d81a5f0faa1d 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1150,7 +1150,13 @@ int blk_poll(struct request_queue *q, blk_qc_t cookie, bool spin)
 	struct blk_mq_hw_ctx *hctx = NULL;
 	struct gendisk *disk = NULL;
 
-	if (!blk_qc_t_valid(cookie) ||
+	/*
+	 * In case of bio-base polling, the returned cookie is actually that of
+	 * the last split bio. Thus the returned cookie may be BLK_QC_T_NONE,
+	 * while the previous split bios have already been submitted and queued
+	 * into the polling hw queue.
+	 */
+	if ((queue_is_mq(q) && !blk_qc_t_valid(cookie)) ||
 	    !test_bit(QUEUE_FLAG_POLL, &q->queue_flags))
 		return 0;
 
diff --git a/drivers/md/dm-core.h b/drivers/md/dm-core.h
index 086d293c2b03..5a0391aa5cc7 100644
--- a/drivers/md/dm-core.h
+++ b/drivers/md/dm-core.h
@@ -127,6 +127,24 @@ static inline struct dm_stats *dm_get_stats(struct mapped_device *md)
 
 #define DM_TABLE_MAX_DEPTH 16
 
+enum target_ctx_type {
+	TARGET_TYPE_MQ,
+	TARGET_TYPE_DM,
+};
+
+struct target_ctx {
+	union {
+		struct {
+			struct blk_mq_hw_ctx *hctx;
+			struct request_queue *q;
+			atomic_t busy;
+		};
+		struct mapped_device *md;
+	};
+
+	int type;
+};
+
 struct dm_table {
 	struct mapped_device *md;
 	enum dm_queue_mode type;
@@ -162,6 +180,9 @@ struct dm_table {
 	void *event_context;
 
 	struct dm_md_mempools *mempools;
+
+	int num_ctx;
+	struct target_ctx *ctxs;
 };
 
 static inline struct completion *dm_get_completion_from_kobject(struct kobject *kobj)
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 188f41287f18..397bb5f57626 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -215,6 +215,8 @@ void dm_table_destroy(struct dm_table *t)
 
 	dm_free_md_mempools(t->mempools);
 
+	kfree(t->ctxs);
+
 	kfree(t);
 }
 
@@ -1194,6 +1196,114 @@ static int dm_table_register_integrity(struct dm_table *t)
 	return 0;
 }
 
+static int device_supports_poll(struct dm_target *ti, struct dm_dev *dev,
+				sector_t start, sector_t len, void *data)
+{
+	struct request_queue *q = bdev_get_queue(dev->bdev);
+
+	return q && test_bit(QUEUE_FLAG_POLL, &q->queue_flags);
+}
+
+static bool dm_table_supports_poll(struct dm_table *t)
+{
+	struct dm_target *ti;
+	unsigned int i;
+
+	/* Ensure that all targets support iopoll. */
+	for (i = 0; i < dm_table_get_num_targets(t); i++) {
+		ti = dm_table_get_target(t, i);
+
+		if (!ti->type->iterate_devices ||
+		    !ti->type->iterate_devices(ti, device_supports_poll, NULL))
+			return false;
+	}
+
+	return true;
+}
+
+static int dm_table_calc_target_ctxs(struct dm_target *ti,
+		struct dm_dev *dev,
+		sector_t start, sector_t len,
+		void *data)
+{
+	int *num = data;
+	struct request_queue *q = dev->bdev->bd_disk->queue;
+
+	if (queue_is_mq(q))
+		*num += q->tag_set->map[HCTX_TYPE_POLL].nr_queues;
+	else
+		*num += 1;
+
+	return 0;
+}
+
+static int dm_table_fill_target_ctxs(struct dm_target *ti,
+		struct dm_dev *dev,
+		sector_t start, sector_t len,
+		void *data)
+{
+	int *index = data;
+	struct target_ctx *ctx;
+	struct request_queue *q = dev->bdev->bd_disk->queue;
+
+	if (queue_is_mq(q)) {
+		int i;
+		int num = q->tag_set->map[HCTX_TYPE_POLL].nr_queues;
+		int offset = q->tag_set->map[HCTX_TYPE_POLL].queue_offset;
+
+		for (i = 0; i < num; i++) {
+			ctx = &ti->table->ctxs[(*index)++];
+			ctx->q = q;
+			ctx->hctx = q->queue_hw_ctx[offset + i];
+			ctx->type = TARGET_TYPE_MQ;
+			/* ctx->busy has been initialized to zero */
+		}
+	} else {
+		struct mapped_device *md = dev->bdev->bd_disk->private_data;
+
+		ctx = &ti->table->ctxs[(*index)++];
+		ctx->md = md;
+		ctx->type = TARGET_TYPE_DM;
+	}
+
+	return 0;
+}
+
+static int dm_table_build_target_ctxs(struct dm_table *t)
+{
+	int i, num = 0, index = 0;
+
+	if (!__table_type_bio_based(t->type) || !dm_table_supports_poll(t))
+		return 0;
+
+	for (i = 0; i < t->num_targets; i++) {
+		struct dm_target *ti = dm_table_get_target(t, i);
+
+		if (ti->type->iterate_devices)
+			ti->type->iterate_devices(ti, dm_table_calc_target_ctxs,
+					&num);
+	}
+
+	if (WARN_ON(!num))
+		return 0;
+
+	t->num_ctx = num;
+
+	t->ctxs = kcalloc(num, sizeof(struct target_ctx), GFP_KERNEL);
+	if (!t->ctxs)
+		return -ENOMEM;
+
+	for (i = 0; i < t->num_targets; i++) {
+		struct dm_target *ti = dm_table_get_target(t, i);
+
+		if (ti->type->iterate_devices)
+			ti->type->iterate_devices(ti, dm_table_fill_target_ctxs,
+					&index);
+	}
+
+	return 0;
+}
+
 /*
  * Prepares the table for use by building the indices,
  * setting the type, and allocating mempools.
@@ -1224,6 +1334,10 @@ int dm_table_complete(struct dm_table *t)
 	if (r)
 		DMERR("unable to allocate mempools");
 
+	r = dm_table_build_target_ctxs(t);
+	if (r)
+		DMERR("unable to build target hctxs");
+
 	return r;
 }
 
@@ -1883,6 +1997,19 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
 #endif
 
 	blk_queue_update_readahead(q);
+
+	/*
+	 * Check for request-based device is remained to
+	 * dm_mq_init_request_queue()->blk_mq_init_allocated_queue().
+	 * Also clear previously set QUEUE_FLAG_POLL* if the new table doesn't
+	 * support iopoll while reloading table.
+	 */
+	if (__table_type_bio_based(t->type)) {
+		if (t->ctxs)
+			q->queue_flags |= QUEUE_FLAG_POLL_MASK;
+		else
+			q->queue_flags &= ~QUEUE_FLAG_POLL_MASK;
+	}
 }
 
 unsigned int dm_table_get_num_targets(struct dm_table *t)
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 46ca3b739396..e2be1caa086a 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1657,6 +1657,42 @@ static blk_qc_t dm_submit_bio(struct bio *bio)
 	return BLK_QC_T_NONE;
 }
 
+
+static int dm_poll_one_md(struct mapped_device *md)
+{
+	int i, num_ctx, srcu_idx, ret = 0;
+	struct dm_table *t;
+	struct target_ctx *ctxs;
+
+	t = dm_get_live_table(md, &srcu_idx);
+	num_ctx = t->num_ctx;
+	ctxs = t->ctxs;
+
+	for (i = 0; i < num_ctx; i++) {
+		struct target_ctx *ctx = &ctxs[i];
+
+		if (ctx->type == TARGET_TYPE_MQ) {
+			if (!atomic_cmpxchg(&ctx->busy, 0, 1)) {
+				ret += blk_mq_poll(ctx->q, ctx->hctx);
+				atomic_set(&ctx->busy, 0);
+			}
+		} else
+			ret += dm_poll_one_md(ctx->md);
+	}
+
+	dm_put_live_table(md, srcu_idx);
+
+	return ret;
+}
+
+static int dm_bio_poll(struct request_queue *q, blk_qc_t cookie)
+{
+	struct gendisk *disk = queue_to_disk(q);
+	struct mapped_device *md= disk->private_data;
+
+	return dm_poll_one_md(md);
+}
+
 /*-----------------------------------------------------------------
  * An IDR is used to keep track of allocated minor numbers.
  *---------------------------------------------------------------*/
@@ -3049,6 +3085,7 @@ static const struct pr_ops dm_pr_ops = {
 };
 
 static const struct block_device_operations dm_blk_dops = {
+	.iopoll = dm_bio_poll,
 	.submit_bio = dm_submit_bio,
 	.open = dm_blk_open,
 	.release = dm_blk_close,
