diff options
| -rw-r--r-- | include/asm-ia64/hugetlb.h | 5 | ||||
| -rw-r--r-- | include/asm-powerpc/hugetlb.h | 5 | ||||
| -rw-r--r-- | include/asm-sh/hugetlb.h | 5 | ||||
| -rw-r--r-- | include/asm-sparc64/hugetlb.h | 5 | ||||
| -rw-r--r-- | include/asm-x86/hugetlb.h | 5 | ||||
| -rw-r--r-- | mm/hugetlb.c | 1 |
6 files changed, 26 insertions, 0 deletions
diff --git a/include/asm-ia64/hugetlb.h b/include/asm-ia64/hugetlb.h index f0ee14c6e172..5f5434374972 100644 --- a/include/asm-ia64/hugetlb.h +++ b/include/asm-ia64/hugetlb.h @@ -34,4 +34,9 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, return ptep_get_and_clear(mm, addr, ptep); } +static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, + unsigned long addr, pte_t *ptep) +{ +} + #endif /* _ASM_IA64_HUGETLB_H */ diff --git a/include/asm-powerpc/hugetlb.h b/include/asm-powerpc/hugetlb.h index f537993c5c87..bead2ff78493 100644 --- a/include/asm-powerpc/hugetlb.h +++ b/include/asm-powerpc/hugetlb.h @@ -34,4 +34,9 @@ static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) { } +static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, + unsigned long addr, pte_t *ptep) +{ +} + #endif /* _ASM_POWERPC_HUGETLB_H */ diff --git a/include/asm-sh/hugetlb.h b/include/asm-sh/hugetlb.h index 885218d2c844..d1ed476467a1 100644 --- a/include/asm-sh/hugetlb.h +++ b/include/asm-sh/hugetlb.h @@ -46,4 +46,9 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, return ptep_get_and_clear(mm, addr, ptep); } +static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, + unsigned long addr, pte_t *ptep) +{ +} + #endif /* _ASM_SH_HUGETLB_H */ diff --git a/include/asm-sparc64/hugetlb.h b/include/asm-sparc64/hugetlb.h index 7e111cfd31ea..0b9e44c85c5d 100644 --- a/include/asm-sparc64/hugetlb.h +++ b/include/asm-sparc64/hugetlb.h @@ -39,4 +39,9 @@ static inline void hugetlb_free_pgd_range(struct mmu_gather **tlb, free_pgd_range(tlb, addr, end, floor, ceiling); } +static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, + unsigned long addr, pte_t *ptep) +{ +} + #endif /* _ASM_SPARC64_HUGETLB_H */ diff --git a/include/asm-x86/hugetlb.h b/include/asm-x86/hugetlb.h index ec21cedd7149..f57236dfc8f4 100644 --- a/include/asm-x86/hugetlb.h +++ b/include/asm-x86/hugetlb.h @@ -46,4 +46,9 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, return ptep_get_and_clear(mm, addr, ptep); } +static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, + unsigned long addr, pte_t *ptep) +{ +} + #endif /* _ASM_X86_HUGETLB_H */ diff --git a/mm/hugetlb.c b/mm/hugetlb.c index d36e1f11a5f2..262d0a93d2b6 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -892,6 +892,7 @@ static int hugetlb_cow(struct mm_struct *mm, struct vm_area_struct *vma, ptep = huge_pte_offset(mm, address & HPAGE_MASK); if (likely(pte_same(*ptep, pte))) { /* Break COW */ + huge_ptep_clear_flush(vma, address, ptep); set_huge_pte_at(mm, address, ptep, make_huge_pte(vma, new_page, 1)); /* Make the old page be freed below */ |
