> mem_map = zone_table[ZONE_DMA]->zone_mem_map;
...
> Something that may not be intuitively obvious to someone with i386 biases
> is that on PA-RISC (at least in the case of CONFIG_DISCONTIGMEM=n), all
> memory is in ZONE_DMA. Does that help divine what the right answer is
> for parisc?
In which case, you should be fine, you should have
NODE_DATA(0)->node_mem_map == zone_table[ZONE_DMA]->zone_mem_map
I believe. In free_area_init_core(), we do:
zone->zone_mem_map = pfn_to_page(zone_start_pfn);
So as long as zone_start_pfn == node_start_pfn, they're equiv. As you say
all your mem is in ZONE_DMA, that should be true.
M.
