Re: [PATCH v4 4/4] Use 2GB memory block size on large-memory x86-64 systems

[Tony Luck]

On Tue, Aug 25, 2015 at 12:01 PM, Yinghai Lu <yinghai@xxxxxxxxxx> wrote:
>> It does ... but this (attached) is simpler.  Your patch and mine both
>> allow the system to boot ...
>
> The version that fix with section_nr present checking may save couple thousands
> calling to get_nid_for_pfn(). section size / page_size = 128M/4k = 32k

Actually saves about 1.2 million calls. Your patch wins :-)

Reported-and-tested-by: Tony Luck <tony.luck@xxxxxxxxx>

-Tony
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