diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-09-11 04:34:46 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-09-11 04:34:46 -0300 |
| commit | 863981e96738983919de841ec669e157e6bdaeb0 (patch) | |
| tree | d6d89a12e7eb8017837c057935a2271290907f76 /include/linux/page-flags.h | |
| parent | 8dec7c70575785729a6a9e6719a955e9c545bcab (diff) | |
Linux-libre 4.7.1-gnupck-4.7.1-gnu
Diffstat (limited to 'include/linux/page-flags.h')
| -rw-r--r-- | include/linux/page-flags.h | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 8131586b2..e8041839a 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -388,10 +388,15 @@ PAGEFLAG(Idle, idle, PF_ANY) #define PAGE_MAPPING_KSM 2 #define PAGE_MAPPING_FLAGS (PAGE_MAPPING_ANON | PAGE_MAPPING_KSM) +static __always_inline int PageAnonHead(struct page *page) +{ + return ((unsigned long)page->mapping & PAGE_MAPPING_ANON) != 0; +} + static __always_inline int PageAnon(struct page *page) { page = compound_head(page); - return ((unsigned long)page->mapping & PAGE_MAPPING_ANON) != 0; + return PageAnonHead(page); } #ifdef CONFIG_KSM @@ -491,7 +496,7 @@ static inline void ClearPageCompound(struct page *page) } #endif -#define PG_head_mask ((1L << PG_head)) +#define PG_head_mask ((1UL << PG_head)) #ifdef CONFIG_HUGETLB_PAGE int PageHuge(struct page *page); @@ -682,7 +687,7 @@ static inline void ClearPageSlabPfmemalloc(struct page *page) } #ifdef CONFIG_MMU -#define __PG_MLOCKED (1 << PG_mlocked) +#define __PG_MLOCKED (1UL << PG_mlocked) #else #define __PG_MLOCKED 0 #endif @@ -692,11 +697,11 @@ static inline void ClearPageSlabPfmemalloc(struct page *page) * these flags set. It they are, there is a problem. */ #define PAGE_FLAGS_CHECK_AT_FREE \ - (1 << PG_lru | 1 << PG_locked | \ - 1 << PG_private | 1 << PG_private_2 | \ - 1 << PG_writeback | 1 << PG_reserved | \ - 1 << PG_slab | 1 << PG_swapcache | 1 << PG_active | \ - 1 << PG_unevictable | __PG_MLOCKED) + (1UL << PG_lru | 1UL << PG_locked | \ + 1UL << PG_private | 1UL << PG_private_2 | \ + 1UL << PG_writeback | 1UL << PG_reserved | \ + 1UL << PG_slab | 1UL << PG_swapcache | 1UL << PG_active | \ + 1UL << PG_unevictable | __PG_MLOCKED) /* * Flags checked when a page is prepped for return by the page allocator. @@ -714,7 +719,7 @@ static inline void ClearPageSlabPfmemalloc(struct page *page) #endif #define PAGE_FLAGS_PRIVATE \ - (1 << PG_private | 1 << PG_private_2) + (1UL << PG_private | 1UL << PG_private_2) /** * page_has_private - Determine if page has private stuff * @page: The page to be checked |