On Fri, 2015-04-03 at 10:12 -0700, Yinghai Lu wrote:
> On Fri, Apr 3, 2015 at 9:14 AM, Toshi Kani <toshi.k...@hp.com> wrote:
> > On Wed, 2015-04-01 at 09:12 +0200, Christoph Hellwig wrote:
> > :
> >> @@ -748,7 +758,7 @@ u64 __init early_reserve_e820(u64 size, u64 align)
> >> /*
> >> * Find the highest page frame number we have available
> >> */
> >> -static unsigned long __init e820_end_pfn(unsigned long limit_pfn,
> >> unsigned type)
> >> +static unsigned long __init e820_end_pfn(unsigned long limit_pfn)
> >> {
> >> int i;
> >> unsigned long last_pfn = 0;
> >> @@ -759,7 +769,11 @@ static unsigned long __init e820_end_pfn(unsigned
> >> long limit_pfn, unsigned type)
> >> unsigned long start_pfn;
> >> unsigned long end_pfn;
> >>
> >> - if (ei->type != type)
> >> + /*
> >> + * Persistent memory is accounted as ram for purposes of
> >> + * establishing max_pfn and mem_map.
> >> + */
> >> + if (ei->type != E820_RAM && ei->type != E820_PRAM)
> >> continue;
> >
> > Should we also delete this code, accounting E820_PRAM as ram, along with
> > the deletion of reserve_pmem() in this version?
>
> should revert those end_of_ram change as attached.
I confirmed that the pmem driver works with the change, and last_pfn is
updated as expected.
Thanks,
-Toshi
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