diff options
Diffstat (limited to 'include/linux/mm.h')
-rw-r--r-- | include/linux/mm.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 72a15dc26bbf..4194bf8e4f6c 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h | |||
@@ -919,7 +919,7 @@ static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long a | |||
919 | } | 919 | } |
920 | #endif /* CONFIG_MMU && !__ARCH_HAS_4LEVEL_HACK */ | 920 | #endif /* CONFIG_MMU && !__ARCH_HAS_4LEVEL_HACK */ |
921 | 921 | ||
922 | #if NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS | 922 | #if USE_SPLIT_PTLOCKS |
923 | /* | 923 | /* |
924 | * We tuck a spinlock to guard each pagetable page into its struct page, | 924 | * We tuck a spinlock to guard each pagetable page into its struct page, |
925 | * at page->private, with BUILD_BUG_ON to make sure that this will not | 925 | * at page->private, with BUILD_BUG_ON to make sure that this will not |
@@ -932,14 +932,14 @@ static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long a | |||
932 | } while (0) | 932 | } while (0) |
933 | #define pte_lock_deinit(page) ((page)->mapping = NULL) | 933 | #define pte_lock_deinit(page) ((page)->mapping = NULL) |
934 | #define pte_lockptr(mm, pmd) ({(void)(mm); __pte_lockptr(pmd_page(*(pmd)));}) | 934 | #define pte_lockptr(mm, pmd) ({(void)(mm); __pte_lockptr(pmd_page(*(pmd)));}) |
935 | #else | 935 | #else /* !USE_SPLIT_PTLOCKS */ |
936 | /* | 936 | /* |
937 | * We use mm->page_table_lock to guard all pagetable pages of the mm. | 937 | * We use mm->page_table_lock to guard all pagetable pages of the mm. |
938 | */ | 938 | */ |
939 | #define pte_lock_init(page) do {} while (0) | 939 | #define pte_lock_init(page) do {} while (0) |
940 | #define pte_lock_deinit(page) do {} while (0) | 940 | #define pte_lock_deinit(page) do {} while (0) |
941 | #define pte_lockptr(mm, pmd) ({(void)(pmd); &(mm)->page_table_lock;}) | 941 | #define pte_lockptr(mm, pmd) ({(void)(pmd); &(mm)->page_table_lock;}) |
942 | #endif /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */ | 942 | #endif /* USE_SPLIT_PTLOCKS */ |
943 | 943 | ||
944 | static inline void pgtable_page_ctor(struct page *page) | 944 | static inline void pgtable_page_ctor(struct page *page) |
945 | { | 945 | { |