btrfs_bio_init
btrfs_bio_init(repair_bbio, failed_bbio->inode, failed_bbio->file_offset + bio_offset,
btrfs_bio_init(btrfs_bio(bio), orig_bbio->inode,
btrfs_bio_init(bbio, inode, file_offset, end_io, private);
btrfs_bio_init(bbio, orig_bbio->inode, orig_bbio->file_offset, NULL, orig_bbio);
void btrfs_bio_init(struct btrfs_bio *bbio, struct btrfs_inode *inode, u64 file_offset,
btrfs_bio_init(bbio, inode, start, end_io, NULL);
btrfs_bio_init(bbio, BTRFS_I(iter->inode), file_offset,