pfn_is_ram 491 fs/proc/kcore.c } else if (!pfn_is_ram(__pa(start) >> PAGE_SHIFT)) { pfn_is_ram 128 fs/proc/vmcore.c if (pfn_is_ram(pfn) == 0) pfn_is_ram 500 fs/proc/vmcore.c if (!pfn_is_ram(pos)) {