__early_pfn_to_nid 2199 include/linux/mm.h extern int __meminit __early_pfn_to_nid(unsigned long pfn, __early_pfn_to_nid 1461 mm/page_alloc.c nid = __early_pfn_to_nid(pfn, &early_pfnnid_cache); __early_pfn_to_nid 1476 mm/page_alloc.c nid = __early_pfn_to_nid(pfn, &early_pfnnid_cache);