vfs: have chdir retry lookup and call once on ESTALE error (0291c0a5) · Commits · e / devices / android_kernel_teracube_emerald

fs/open.c

+7 −2

Original line number	Diff line number	Diff line
		@@ -394,8 +394,9 @@ SYSCALL_DEFINE1(chdir, const char __user *, filename)
		{
		struct path path;
		int error;

		error = user_path_dir(filename, &path);
		unsigned int lookup_flags = LOOKUP_FOLLOW \| LOOKUP_DIRECTORY;
		retry:
		error = user_path_at(AT_FDCWD, filename, lookup_flags, &path);
		if (error)
		goto out;

		@@ -407,6 +408,10 @@ SYSCALL_DEFINE1(chdir, const char __user *, filename)

		dput_and_out:
		path_put(&path);
		if (retry_estale(error, lookup_flags)) {
		lookup_flags \|= LOOKUP_REVAL;
		goto retry;
		}
		out:
		return error;
		}