fs/btrfs/backref.c
2671
ret = btrfs_find_one_extref(fs_root, inum, offset, path, &extref,
fs/btrfs/backref.h
251
int btrfs_find_one_extref(struct btrfs_root *root, u64 inode_objectid,
fs/btrfs/tree-log.c
1784
ret = btrfs_find_one_extref(inode->root, inode_objectid, offset,
