On Tue, 2008-02-12 at 13:57 -0800, Dave Hansen wrote:
quoted text
> On Tue, 2008-02-12 at 13:56 -0800, Badari Pulavarty wrote:
> > 
> > +static void __remove_section(struct zone *zone, unsigned long
> > section_nr)
> > +{
> > +       if (!valid_section_nr(section_nr))
> > +               return;
> > +
> > +       unregister_memory_section(__nr_to_section(section_nr));
> > +       sparse_remove_one_section(zone, section_nr);
> > +}
> 
> I do think passing in a mem_section* here is highly superior.  It makes
> it impossible to pass a pfn in and not get a warning.
> 

Only problem is, I need to hold pgdat_resize_lock() if pass *ms. 
If I don't hold the resize_lock, I have to re-evaluate. And also,
I need to pass section_nr for decoding the mem_map anyway :(

Thanks,
Badari

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