SYSCALL_DEFINE3(fchmodat, int, dfd, const char __user *, filename, umode_t, mode)
{
	struct path path;
	int error;

	error = user_path_at(dfd, filename, LOOKUP_FOLLOW, &path);
	if (!error) {
		error = chmod_common(&path, mode);
		path_put(&path);
	}
	return error;
}

SYSCALL_DEFINE2(fchmod, unsigned int, fd, umode_t, mode)
{
	struct fd f = fdget(fd);
	int err = -EBADF;

	if (f.file) {
		audit_inode(NULL, f.file->f_path.dentry, 0);
		err = chmod_common(&f.file->f_path, mode);
		fdput(f);
	}
	return err;
}

int ksys_fchmod(unsigned int fd, umode_t mode)
{
	struct fd f = fdget(fd);
	int err = -EBADF;

	if (f.file) {
		audit_file(f.file);
		err = chmod_common(&f.file->f_path, mode);
		fdput(f);
	}
	return err;
}

SYSCALL_DEFINE2(fchmod, unsigned int, fd, umode_t, mode)
{
	struct file * file;
	int err = -EBADF;

	file = fget(fd);
	if (file) {
		audit_inode(NULL, file->f_path.dentry);
		err = chmod_common(&file->f_path, mode);
		fput(file);
	}
	return err;
}

SYSCALL_DEFINE3(fchmodat, int, dfd, const char __user *, filename, umode_t, mode)
{
	struct path path;
	int error;
	unsigned int lookup_flags = LOOKUP_FOLLOW;
retry:
	error = user_path_at(dfd, filename, lookup_flags, &path);
	if (!error) {
		error = chmod_common(&path, mode);
		path_put(&path);
		if (retry_estale(error, lookup_flags)) {
			lookup_flags |= LOOKUP_REVAL;
			goto retry;
		}
	}
	return error;
}