Symbol: btrfs_backref_iter_start
fs/btrfs/backref.c
3457
ret = btrfs_backref_iter_start(trans->fs_info, iter, cur->bytenr);
fs/btrfs/backref.h
304
int btrfs_backref_iter_start(struct btrfs_fs_info *fs_info, struct btrfs_backref_iter *iter, u64 bytenr);