diff --git a/drivers/md/dm-core.h b/drivers/md/dm-core.h
index f186d7afaeabba1211a5d07d9c67b84568d7a085..2c49aa6501b073fac40265f371861fe76fd1fd18 100644
--- a/drivers/md/dm-core.h
+++ b/drivers/md/dm-core.h
@@ -250,12 +250,11 @@ struct dm_io {
 	struct mapped_device *md;
 	struct bio *orig_bio;
 	blk_status_t status;
+	spinlock_t lock;
 	unsigned long start_time;
 	void *data;
 	struct hlist_node node;
 	struct task_struct *map_task;
-	spinlock_t startio_lock;
-	spinlock_t endio_lock;
 	struct dm_stats_aux stats_aux;
 	/* last member of dm_target_io is 'struct bio' */
 	struct dm_target_io tio;
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index cca11cf42cc37f6f0c4ca31e50d8c74482a0672e..b762a48d3fdffa68df94a4ab6f7e9bb0fe3c004e 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -550,9 +550,9 @@ static void dm_start_io_acct(struct dm_io *io, struct bio *clone)
 		if (dm_io_flagged(io, DM_IO_ACCOUNTED))
 			return;
 		/* Can afford locking given DM_TIO_IS_DUPLICATE_BIO */
-		spin_lock_irqsave(&io->startio_lock, flags);
+		spin_lock_irqsave(&io->lock, flags);
 		dm_io_set_flag(io, DM_IO_ACCOUNTED);
-		spin_unlock_irqrestore(&io->startio_lock, flags);
+		spin_unlock_irqrestore(&io->lock, flags);
 	}
 
 	__dm_start_io_acct(io, bio);
@@ -584,8 +584,7 @@ static struct dm_io *alloc_io(struct mapped_device *md, struct bio *bio)
 	io->orig_bio = NULL;
 	io->md = md;
 	io->map_task = current;
-	spin_lock_init(&io->startio_lock);
-	spin_lock_init(&io->endio_lock);
+	spin_lock_init(&io->lock);
 	io->start_time = jiffies;
 	io->flags = 0;
 
@@ -933,11 +932,11 @@ void dm_io_dec_pending(struct dm_io *io, blk_status_t error)
 	/* Push-back supersedes any I/O errors */
 	if (unlikely(error)) {
 		unsigned long flags;
-		spin_lock_irqsave(&io->endio_lock, flags);
+		spin_lock_irqsave(&io->lock, flags);
 		if (!(io->status == BLK_STS_DM_REQUEUE &&
 		      __noflush_suspending(io->md)))
 			io->status = error;
-		spin_unlock_irqrestore(&io->endio_lock, flags);
+		spin_unlock_irqrestore(&io->lock, flags);
 	}
 
 	if (atomic_dec_and_test(&io->io_count))