link_path_walk: split "return from recursive call" path (07681481) · Commits · 戴 / test

fs/namei.c

+17 −23

Original line number	Diff line number	Diff line
		@@ -1826,23 +1826,6 @@ Walked:
		last->name = name;
		name = s;
		goto start;

		back:
		name = last->name;
		if (unlikely(err)) {
		put_link(nd, &last->link, last->cookie);
		current->link_count--;
		nd->depth--;
		last--;
		goto Err;
		} else {
		err = walk_component(nd, LOOKUP_FOLLOW);
		put_link(nd, &last->link, last->cookie);
		current->link_count--;
		nd->depth--;
		last--;
		goto Walked;
		}
		}
		}
		if (!d_can_lookup(nd->path.dentry)) {
		@@ -1852,13 +1835,24 @@ back:
		}
		terminate_walk(nd);
		Err:
		if (likely(!nd->depth))
		while (unlikely(nd->depth)) {
		put_link(nd, &last->link, last->cookie);
		current->link_count--;
		nd->depth--;
		last--;
		}
		return err;
		goto back;
		OK:
		if (likely(!nd->depth))
		if (unlikely(nd->depth)) {
		name = last->name;
		err = walk_component(nd, LOOKUP_FOLLOW);
		put_link(nd, &last->link, last->cookie);
		current->link_count--;
		nd->depth--;
		last--;
		goto Walked;
		}
		return 0;
		goto back;
		}

		static int path_init(int dfd, const struct filename *name, unsigned int flags,