On (10/10/08 13:14), Andy Whitcroft didst pronounce:
> > > +
> > > +int select_pool_counter(unsigned int counter, unsigned long pagesize,
> > > + char *filename, char **key)
> > > +{
> >
> > /*
> > * Return the value of a given counter (e.g. HUGEPAGES_RSVD) for the
> > * of the requested pagesize. This ordinarily will use a sysfile in
> > * /sys/kernel/mm/hugepages/hugepages-NNKB/ but in the case of the
> > * default pagesize may read the Hugepagesize: key in /proc/meminfo.
> > * The filename and key (if applicable) used is returned to the caller.
> > */
> >
>
> Thats not quite right as it does not return the value of any counter.
> It only tells us the filenames and tags. How about this:
>
> /*
> * Pool counters are typically exposed in sysfs in modern kernels, the
> * counters for the default page size are exposed in procfs in all kernels
> * supporting hugepages. Given a specific counter (e.g. HUGEPAGES_RSVD)
> * and a page size return both a filename and an optional tag to locate
> * and extract this counter.
> */
>
Perfect. Thanks
--
Mel Gorman
Part-time Phd Student Linux Technology Center
University of Limerick IBM Dublin Software Lab
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