diff options
Diffstat (limited to 'include/linux/highmem.h')
| -rw-r--r-- | include/linux/highmem.h | 48 |
1 files changed, 8 insertions, 40 deletions
diff --git a/include/linux/highmem.h b/include/linux/highmem.h index d3999b4e26cc..ef788b5b4a35 100644 --- a/include/linux/highmem.h +++ b/include/linux/highmem.h @@ -39,10 +39,17 @@ extern unsigned long totalhigh_pages; void kmap_flush_unused(void); +struct page *kmap_to_page(void *addr); + #else /* CONFIG_HIGHMEM */ static inline unsigned int nr_free_highpages(void) { return 0; } +static inline struct page *kmap_to_page(void *addr) +{ + return virt_to_page(addr); +} + #define totalhigh_pages 0UL #ifndef ARCH_HAS_KMAP @@ -110,54 +117,15 @@ static inline void kmap_atomic_idx_pop(void) #endif /* - * NOTE: - * kmap_atomic() and kunmap_atomic() with two arguments are deprecated. - * We only keep them for backward compatibility, any usage of them - * are now warned. - */ - -#define PASTE(a, b) a ## b -#define PASTE2(a, b) PASTE(a, b) - -#define NARG_(_2, _1, n, ...) n -#define NARG(...) NARG_(__VA_ARGS__, 2, 1, :) - -static inline void __deprecated *kmap_atomic_deprecated(struct page *page, - enum km_type km) -{ - return kmap_atomic(page); -} - -#define kmap_atomic1(...) kmap_atomic(__VA_ARGS__) -#define kmap_atomic2(...) kmap_atomic_deprecated(__VA_ARGS__) -#define kmap_atomic(...) PASTE2(kmap_atomic, NARG(__VA_ARGS__)(__VA_ARGS__)) - -static inline void __deprecated __kunmap_atomic_deprecated(void *addr, - enum km_type km) -{ - __kunmap_atomic(addr); -} - -/* * Prevent people trying to call kunmap_atomic() as if it were kunmap() * kunmap_atomic() should get the return value of kmap_atomic, not the page. */ -#define kunmap_atomic_deprecated(addr, km) \ -do { \ - BUILD_BUG_ON(__same_type((addr), struct page *)); \ - __kunmap_atomic_deprecated(addr, km); \ -} while (0) - -#define kunmap_atomic_withcheck(addr) \ +#define kunmap_atomic(addr) \ do { \ BUILD_BUG_ON(__same_type((addr), struct page *)); \ __kunmap_atomic(addr); \ } while (0) -#define kunmap_atomic1(...) kunmap_atomic_withcheck(__VA_ARGS__) -#define kunmap_atomic2(...) kunmap_atomic_deprecated(__VA_ARGS__) -#define kunmap_atomic(...) PASTE2(kunmap_atomic, NARG(__VA_ARGS__)(__VA_ARGS__)) -/**** End of C pre-processor tricks for deprecated macros ****/ /* when CONFIG_HIGHMEM is not set these will be plain clear/copy_page */ #ifndef clear_user_highpage |