49 extern void * kmap_high(struct page *page, int nonblocking);
50 extern void kunmap_high(struct page *page);
52 static inline void *__kmap(struct page *page, int nonblocking)  in __kmap()  argument
56 	if (page < highmem_start_page)  in __kmap()
57 		return page_address(page);  in __kmap()
58 	return kmap_high(page, nonblocking);  in __kmap()
61 #define kmap(page)		__kmap(page, 0)  argument
62 #define kmap_nonblock(page)	__kmap(page, 1)  argument
64 static inline void kunmap(struct page *page)  in kunmap()  argument
68 	if (page < highmem_start_page)  in kunmap()
70 	kunmap_high(page);  in kunmap()
79 static inline void *kmap_atomic(struct page *page, enum km_type type)  in kmap_atomic()  argument
84 	if (page < highmem_start_page)  in kmap_atomic()
85 		return page_address(page);  in kmap_atomic()
89 	set_pte(kmap_pte-idx, mk_pte(page, kmap_prot));  in kmap_atomic()