diff --git a/block/blk-core.c b/block/blk-core.c
index 17667159482e0309d37c6784b7f3f8b4aac1a63c..5d50dd16e2a594e2e71f1d7a45456baadb5abb14 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -945,18 +945,6 @@ unsigned long bdev_start_io_acct(struct block_device *bdev,
 }
 EXPORT_SYMBOL(bdev_start_io_acct);
 
-/**
- * bio_start_io_acct_time - start I/O accounting for bio based drivers
- * @bio:	bio to start account for
- * @start_time:	start time that should be passed back to bio_end_io_acct().
- */
-void bio_start_io_acct_time(struct bio *bio, unsigned long start_time)
-{
-	bdev_start_io_acct(bio->bi_bdev, bio_sectors(bio),
-			   bio_op(bio), start_time);
-}
-EXPORT_SYMBOL_GPL(bio_start_io_acct_time);
-
 /**
  * bio_start_io_acct - start I/O accounting for bio based drivers
  * @bio:	bio to start account for
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 50e358a19d98643b2bc927372cb2c46b6d4ca52c..57ed49f20d2eb867c0faad29ec1a998b2cc005b7 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1458,7 +1458,6 @@ unsigned long bdev_start_io_acct(struct block_device *bdev,
 void bdev_end_io_acct(struct block_device *bdev, enum req_op op,
 		unsigned long start_time);
 
-void bio_start_io_acct_time(struct bio *bio, unsigned long start_time);
 unsigned long bio_start_io_acct(struct bio *bio);
 void bio_end_io_acct_remapped(struct bio *bio, unsigned long start_time,
 		struct block_device *orig_bdev);