100 void page_key_read(unsigned long *pfn)  in page_key_read()  argument
106 	page = pfn_to_page(*pfn);  in page_key_read()
111 	*(unsigned char *) pfn = key;  in page_key_read()
118 void page_key_memorize(unsigned long *pfn)  in page_key_memorize()  argument
120 	page_key_wp->data[page_key_wx] = *(unsigned char *) pfn;  in page_key_memorize()
121 	*(unsigned char *) pfn = 0;  in page_key_memorize()
152 int pfn_is_nosave(unsigned long pfn)  in pfn_is_nosave()  argument
160 	if (pfn <= LC_PAGES)  in pfn_is_nosave()
162 	if (pfn >= nosave_begin_pfn && pfn < nosave_end_pfn)  in pfn_is_nosave()
165 	if (pfn >= stext_pfn && pfn <= end_rodata_pfn)  in pfn_is_nosave()
167 	if (tprot(PFN_PHYS(pfn)))  in pfn_is_nosave()