+ mhp_altmap.base_pfn = PHYS_PFN(start); + mhp_altmap.free = PHYS_PFN(size) - nr_vmemmap_pages;That change does not belong into this patch.I kept that change with ppc64 enablement because only ppc64 arch got check against those values in the free path.
Let's make that accounting consistent in patch #4. I think it really belongs in there, especially once we clarify the "free vs. reserved" handling.
-- Cheers, David / dhildenb
