On Wed, Mar 23, 2022 at 04:37:50PM +0100, Niklas Schnelle wrote:
> > +/*
> > + * This holds a pinned page list for multiple areas of IO address space. 
> > The
> > + * pages always originate from a linear chunk of userspace VA. Multiple
> > + * io_pagetable's, through their iopt_area's, can share a single iopt_pages
> > + * which avoids multi-pinning and double accounting of page consumption.
> > + *
> > + * indexes in this structure are measured in PAGE_SIZE units, are 0 based 
> > from
> > + * the start of the uptr and extend to npages. pages are pinned dynamically
> > + * according to the intervals in the users_itree and domains_itree, npages
> > + * records the current number of pages pinned.
> 
> This sounds wrong or at least badly named. If npages records the
> current number of pages pinned then what does npinned record?

Oh, it is a typo, the 2nd npages should be npinned, thanks

Jason
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