this_start_pfn   6310 mm/page_alloc.c 	unsigned long this_start_pfn, this_end_pfn;
this_start_pfn   6316 mm/page_alloc.c 	for_each_mem_pfn_range(i, nid, &this_start_pfn, &this_end_pfn, NULL) {
this_start_pfn   6317 mm/page_alloc.c 		*start_pfn = min(*start_pfn, this_start_pfn);