diff options
| -rw-r--r-- | arch/s390/include/asm/hugetlb.h | 3 | ||||
| -rw-r--r-- | arch/s390/mm/hugetlbpage.c | 60 |
2 files changed, 3 insertions, 60 deletions
diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h index dfb542ade6b1..0130d0379edd 100644 --- a/arch/s390/include/asm/hugetlb.h +++ b/arch/s390/include/asm/hugetlb.h @@ -37,9 +37,6 @@ static inline int prepare_hugepage_range(struct file *file, #define arch_clear_hugepage_flags(page) do { } while (0) -int arch_prepare_hugepage(struct page *page); -void arch_release_hugepage(struct page *page); - static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c index c3f8e3df92ff..3bbfd4f43ed7 100644 --- a/arch/s390/mm/hugetlbpage.c +++ b/arch/s390/mm/hugetlbpage.c @@ -86,31 +86,16 @@ static inline pte_t __pmd_to_pte(pmd_t pmd) void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte) { - pmd_t pmd; + pmd_t pmd = __pte_to_pmd(pte); - pmd = __pte_to_pmd(pte); - if (!MACHINE_HAS_HPAGE) { - /* Emulated huge ptes loose the dirty and young bit */ - pmd_val(pmd) &= ~_SEGMENT_ENTRY_ORIGIN; - pmd_val(pmd) |= pte_page(pte)[1].index; - } else - pmd_val(pmd) |= _SEGMENT_ENTRY_LARGE; + pmd_val(pmd) |= _SEGMENT_ENTRY_LARGE; *(pmd_t *) ptep = pmd; } pte_t huge_ptep_get(pte_t *ptep) { - unsigned long origin; - pmd_t pmd; + pmd_t pmd = *(pmd_t *) ptep; - pmd = *(pmd_t *) ptep; - if (!MACHINE_HAS_HPAGE && pmd_present(pmd)) { - origin = pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN; - pmd_val(pmd) &= ~_SEGMENT_ENTRY_ORIGIN; - pmd_val(pmd) |= *(unsigned long *) origin; - /* Emulated huge ptes are young and dirty by definition */ - pmd_val(pmd) |= _SEGMENT_ENTRY_YOUNG | _SEGMENT_ENTRY_DIRTY; - } return __pmd_to_pte(pmd); } @@ -125,45 +110,6 @@ pte_t huge_ptep_get_and_clear(struct mm_struct *mm, return pte; } -int arch_prepare_hugepage(struct page *page) -{ - unsigned long addr = page_to_phys(page); - pte_t pte; - pte_t *ptep; - int i; - - if (MACHINE_HAS_HPAGE) - return 0; - - ptep = (pte_t *) pte_alloc_one(&init_mm, addr); - if (!ptep) - return -ENOMEM; - - pte_val(pte) = addr; - for (i = 0; i < PTRS_PER_PTE; i++) { - set_pte_at(&init_mm, addr + i * PAGE_SIZE, ptep + i, pte); - pte_val(pte) += PAGE_SIZE; - } - page[1].index = (unsigned long) ptep; - return 0; -} - -void arch_release_hugepage(struct page *page) -{ - pte_t *ptep; - - if (MACHINE_HAS_HPAGE) - return; - - ptep = (pte_t *) page[1].index; - if (!ptep) - return; - clear_table((unsigned long *) ptep, _PAGE_INVALID, - PTRS_PER_PTE * sizeof(pte_t)); - page_table_free(&init_mm, (unsigned long *) ptep); - page[1].index = 0; -} - pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr, unsigned long sz) { |