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-rw-r--r--block/partition-generic.c6
-rw-r--r--include/linux/bio.h4
2 files changed, 7 insertions, 3 deletions
diff --git a/block/partition-generic.c b/block/partition-generic.c
index 91622db9aedf..08dabcd8b6ae 100644
--- a/block/partition-generic.c
+++ b/block/partition-generic.c
@@ -51,6 +51,12 @@ const char *bdevname(struct block_device *bdev, char *buf)
EXPORT_SYMBOL(bdevname);
+const char *bio_devname(struct bio *bio, char *buf)
+{
+ return disk_name(bio->bi_disk, bio->bi_partno, buf);
+}
+EXPORT_SYMBOL(bio_devname);
+
/*
* There's very little reason to use this, you should really
* have a struct block_device just about everywhere and use
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 45f00dd6323c..5aa40f4712ff 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -501,6 +501,7 @@ void zero_fill_bio(struct bio *bio);
extern struct bio_vec *bvec_alloc(gfp_t, int, unsigned long *, mempool_t *);
extern void bvec_free(mempool_t *, struct bio_vec *, unsigned int);
extern unsigned int bvec_nr_vecs(unsigned short idx);
+extern const char *bio_devname(struct bio *bio, char *buffer);
#define bio_set_dev(bio, bdev) \
do { \
@@ -519,9 +520,6 @@ do { \
#define bio_dev(bio) \
disk_devt((bio)->bi_disk)
-#define bio_devname(bio, buf) \
- __bdevname(bio_dev(bio), (buf))
-
#ifdef CONFIG_BLK_CGROUP
int bio_associate_blkcg(struct bio *bio, struct cgroup_subsys_state *blkcg_css);
int bio_associate_current(struct bio *bio);