Re: [PATCH v2 1/2] open: add close_range()

Oleg Nesterov
2019-05-23T16:20:05Z

On 05/23, Christian Brauner wrote:
>
> +int __close_range(struct files_struct *files, unsigned fd, unsigned max_fd)
> +{
> + unsigned int cur_max;
> +
> + if (fd > max_fd)
> + return -EINVAL;
> +
> + rcu_read_lock();
> + cur_max = files_fdtable(files)->max_fds;
> + rcu_read_unlock();
> +
> + /* cap to last valid index into fdtable */
> + max_fd = max(max_fd, (cur_max - 1));
^^^

Hmm. min() ?

Oleg.