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

[Christian Brauner]

On Thu, May 23, 2019 at 06:20:05PM +0200, Oleg Nesterov wrote:
> 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() ?

Yes, thanks! Massive brainf*rt on my end, sorry.

Christian