diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/huge_mm.h | 7 | ||||
| -rw-r--r-- | include/linux/rmap.h | 3 |
2 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h index a4cecb4801ec..01ad22e938b0 100644 --- a/include/linux/huge_mm.h +++ b/include/linux/huge_mm.h @@ -106,6 +106,9 @@ void __split_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd, __split_huge_pmd(__vma, __pmd, __address); \ } while (0) + +void split_huge_pmd_address(struct vm_area_struct *vma, unsigned long address); + #if HPAGE_PMD_ORDER >= MAX_ORDER #error "hugepages can't be allocated by the buddy allocator" #endif @@ -173,6 +176,10 @@ static inline int split_huge_page(struct page *page) static inline void deferred_split_huge_page(struct page *page) {} #define split_huge_pmd(__vma, __pmd, __address) \ do { } while (0) + +static inline void split_huge_pmd_address(struct vm_area_struct *vma, + unsigned long address) {} + static inline int hugepage_madvise(struct vm_area_struct *vma, unsigned long *vm_flags, int advice) { diff --git a/include/linux/rmap.h b/include/linux/rmap.h index a5875e9b4a27..3d975e2252d4 100644 --- a/include/linux/rmap.h +++ b/include/linux/rmap.h @@ -86,6 +86,7 @@ enum ttu_flags { TTU_MIGRATION = 2, /* migration mode */ TTU_MUNLOCK = 4, /* munlock mode */ TTU_LZFREE = 8, /* lazy free mode */ + TTU_SPLIT_HUGE_PMD = 16, /* split huge PMD if any */ TTU_IGNORE_MLOCK = (1 << 8), /* ignore mlock */ TTU_IGNORE_ACCESS = (1 << 9), /* don't age */ @@ -93,6 +94,8 @@ enum ttu_flags { TTU_BATCH_FLUSH = (1 << 11), /* Batch TLB flushes where possible * and caller guarantees they will * do a final flush if necessary */ + TTU_RMAP_LOCKED = (1 << 12) /* do not grab rmap lock: + * caller holds it */ }; #ifdef CONFIG_MMU |