kn_to 122 fs/kernfs/dir.c static int kernfs_path_from_node_locked(struct kernfs_node *kn_to, kn_to 131 fs/kernfs/dir.c if (!kn_to) kn_to 135 fs/kernfs/dir.c kn_from = kernfs_root(kn_to)->kn; kn_to 137 fs/kernfs/dir.c if (kn_from == kn_to) kn_to 143 fs/kernfs/dir.c common = kernfs_common_ancestor(kn_from, kn_to); kn_to 147 fs/kernfs/dir.c depth_to = kernfs_depth(common, kn_to); kn_to 158 fs/kernfs/dir.c for (kn = kn_to, j = 0; j < i; j++)