diff options
Diffstat (limited to 'block/genhd.c')
| -rw-r--r-- | block/genhd.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/block/genhd.c b/block/genhd.c index 00da5219ee3..fda9c7a63c2 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -182,11 +182,17 @@ static int exact_lock(dev_t devt, void *data) */ void add_disk(struct gendisk *disk) { + struct backing_dev_info *bdi; + disk->flags |= GENHD_FL_UP; blk_register_region(MKDEV(disk->major, disk->first_minor), disk->minors, NULL, exact_match, exact_lock, disk); register_disk(disk); blk_register_queue(disk); + + bdi = &disk->queue->backing_dev_info; + bdi_register_dev(bdi, MKDEV(disk->major, disk->first_minor)); + sysfs_create_link(&disk->dev.kobj, &bdi->dev->kobj, "bdi"); } EXPORT_SYMBOL(add_disk); @@ -194,6 +200,8 @@ EXPORT_SYMBOL(del_gendisk); /* in partitions/check.c */ void unlink_gendisk(struct gendisk *disk) { + sysfs_remove_link(&disk->dev.kobj, "bdi"); + bdi_unregister(&disk->queue->backing_dev_info); blk_unregister_queue(disk); blk_unregister_region(MKDEV(disk->major, disk->first_minor), disk->minors); |