diff options
Diffstat (limited to 'include/linux/highmem.h')
-rw-r--r-- | include/linux/highmem.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/highmem.h b/include/linux/highmem.h index 7bab8eae2341..a515eb0afdfb 100644 --- a/include/linux/highmem.h +++ b/include/linux/highmem.h | |||
@@ -27,6 +27,8 @@ static inline void flush_kernel_dcache_page(struct page *page) | |||
27 | unsigned int nr_free_highpages(void); | 27 | unsigned int nr_free_highpages(void); |
28 | extern unsigned long totalhigh_pages; | 28 | extern unsigned long totalhigh_pages; |
29 | 29 | ||
30 | void kmap_flush_unused(void); | ||
31 | |||
30 | #else /* CONFIG_HIGHMEM */ | 32 | #else /* CONFIG_HIGHMEM */ |
31 | 33 | ||
32 | static inline unsigned int nr_free_highpages(void) { return 0; } | 34 | static inline unsigned int nr_free_highpages(void) { return 0; } |
@@ -49,10 +51,13 @@ static inline void *kmap_atomic(struct page *page, enum km_type idx) | |||
49 | pagefault_disable(); | 51 | pagefault_disable(); |
50 | return page_address(page); | 52 | return page_address(page); |
51 | } | 53 | } |
54 | #define kmap_atomic_prot(page, idx, prot) kmap_atomic(page, idx) | ||
52 | 55 | ||
53 | #define kunmap_atomic(addr, idx) do { pagefault_enable(); } while (0) | 56 | #define kunmap_atomic(addr, idx) do { pagefault_enable(); } while (0) |
54 | #define kmap_atomic_pfn(pfn, idx) kmap_atomic(pfn_to_page(pfn), (idx)) | 57 | #define kmap_atomic_pfn(pfn, idx) kmap_atomic(pfn_to_page(pfn), (idx)) |
55 | #define kmap_atomic_to_page(ptr) virt_to_page(ptr) | 58 | #define kmap_atomic_to_page(ptr) virt_to_page(ptr) |
59 | |||
60 | #define kmap_flush_unused() do {} while(0) | ||
56 | #endif | 61 | #endif |
57 | 62 | ||
58 | #endif /* CONFIG_HIGHMEM */ | 63 | #endif /* CONFIG_HIGHMEM */ |