Reza Arbab <ar...@linux.vnet.ibm.com> writes:
> Memory hotplug is leading to hash page table calls, even on radix:
>
> ...
> arch_add_memory
> create_section_mapping
> htab_bolt_mapping
> BUG_ON(!ppc_md.hpte_insert);
>
> Refactor {create,remove}_section_mapping() into hash__ and radix__ variants.
>
> RFC/TODO:
> I wasn't sure what to do in radix__remove_section_mapping(). Its vmemmap
> counterpart radix__vmemmap_remove_mapping() is stubbed as a FIXME. I left it
> empty for now.
For linear mapping and for vmemmap area we should do something equivalent of
static void __meminit
remove_pagetable(unsigned long start, unsigned long end, bool direct)
as done for x86.
-aneesh
