99 void page_key_read(unsigned long *pfn)  in page_key_read()  argument
103 	addr = (unsigned long) page_address(pfn_to_page(*pfn));  in page_key_read()
104 	*(unsigned char *) pfn = (unsigned char) page_get_storage_key(addr);  in page_key_read()
111 void page_key_memorize(unsigned long *pfn)  in page_key_memorize()  argument
113 	page_key_wp->data[page_key_wx] = *(unsigned char *) pfn;  in page_key_memorize()
114 	*(unsigned char *) pfn = 0;  in page_key_memorize()
137 int pfn_is_nosave(unsigned long pfn)  in pfn_is_nosave()  argument
145 	if (pfn <= LC_PAGES)  in pfn_is_nosave()
147 	if (pfn >= nosave_begin_pfn && pfn < nosave_end_pfn)  in pfn_is_nosave()
150 	if (pfn >= stext_pfn && pfn <= eshared_pfn)  in pfn_is_nosave()
152 	if (tprot(PFN_PHYS(pfn)))  in pfn_is_nosave()