Re: [PATCH v3 22/26] mm: numa_memblks: use memblock_{start,end}_of_DRAM() when sanitizing meminfo

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Mike Rapoport wrote:
> From: "Mike Rapoport (Microsoft)" <rppt@xxxxxxxxxx>
> 
> numa_cleanup_meminfo() moves blocks outside system RAM to
> numa_reserved_meminfo and it uses 0 and PFN_PHYS(max_pfn) to determine
> the memory boundaries.
> 
> Replace the memory range boundaries with more portable
> memblock_start_of_DRAM() and memblock_end_of_DRAM().

Can you say a bit more about why this is more portable? Is there any
scenario for which (0, max_pfn) does the wrong thing?




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