6 void *kmap(struct page *page)  in kmap()  argument
9 	if (!PageHighMem(page))  in kmap()
10 		return page_address(page);  in kmap()
11 	return kmap_high(page);  in kmap()
15 void kunmap(struct page *page)  in kunmap()  argument
19 	if (!PageHighMem(page))  in kunmap()
21 	kunmap_high(page);  in kunmap()
33 void *kmap_atomic_prot(struct page *page, pgprot_t prot)  in kmap_atomic_prot()  argument
41 	if (!PageHighMem(page))  in kmap_atomic_prot()
42 		return page_address(page);  in kmap_atomic_prot()
48 	set_pte(kmap_pte-idx, mk_pte(page, prot));  in kmap_atomic_prot()
55 void *kmap_atomic(struct page *page)  in kmap_atomic()  argument
57 	return kmap_atomic_prot(page, kmap_prot);  in kmap_atomic()