diff options
Diffstat (limited to 'arch/s390/mm/hugetlbpage.c')
| -rw-r--r-- | arch/s390/mm/hugetlbpage.c | 47 |
1 files changed, 15 insertions, 32 deletions
diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c index da36d13ffc16..c299a18273ff 100644 --- a/arch/s390/mm/hugetlbpage.c +++ b/arch/s390/mm/hugetlbpage.c @@ -9,6 +9,7 @@ #define KMSG_COMPONENT "hugetlb" #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt +#include <asm/pgalloc.h> #include <linux/mm.h> #include <linux/hugetlb.h> #include <linux/mman.h> @@ -72,8 +73,8 @@ static inline unsigned long __pte_to_rste(pte_t pte) static inline pte_t __rste_to_pte(unsigned long rste) { + unsigned long pteval; int present; - pte_t pte; if ((rste & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R3) present = pud_present(__pud(rste)); @@ -101,29 +102,21 @@ static inline pte_t __rste_to_pte(unsigned long rste) * u unused, l large */ if (present) { - pte_val(pte) = rste & _SEGMENT_ENTRY_ORIGIN_LARGE; - pte_val(pte) |= _PAGE_LARGE | _PAGE_PRESENT; - pte_val(pte) |= move_set_bit(rste, _SEGMENT_ENTRY_READ, - _PAGE_READ); - pte_val(pte) |= move_set_bit(rste, _SEGMENT_ENTRY_WRITE, - _PAGE_WRITE); - pte_val(pte) |= move_set_bit(rste, _SEGMENT_ENTRY_INVALID, - _PAGE_INVALID); - pte_val(pte) |= move_set_bit(rste, _SEGMENT_ENTRY_PROTECT, - _PAGE_PROTECT); - pte_val(pte) |= move_set_bit(rste, _SEGMENT_ENTRY_DIRTY, - _PAGE_DIRTY); - pte_val(pte) |= move_set_bit(rste, _SEGMENT_ENTRY_YOUNG, - _PAGE_YOUNG); + pteval = rste & _SEGMENT_ENTRY_ORIGIN_LARGE; + pteval |= _PAGE_LARGE | _PAGE_PRESENT; + pteval |= move_set_bit(rste, _SEGMENT_ENTRY_READ, _PAGE_READ); + pteval |= move_set_bit(rste, _SEGMENT_ENTRY_WRITE, _PAGE_WRITE); + pteval |= move_set_bit(rste, _SEGMENT_ENTRY_INVALID, _PAGE_INVALID); + pteval |= move_set_bit(rste, _SEGMENT_ENTRY_PROTECT, _PAGE_PROTECT); + pteval |= move_set_bit(rste, _SEGMENT_ENTRY_DIRTY, _PAGE_DIRTY); + pteval |= move_set_bit(rste, _SEGMENT_ENTRY_YOUNG, _PAGE_YOUNG); #ifdef CONFIG_MEM_SOFT_DIRTY - pte_val(pte) |= move_set_bit(rste, _SEGMENT_ENTRY_SOFT_DIRTY, - _PAGE_SOFT_DIRTY); + pteval |= move_set_bit(rste, _SEGMENT_ENTRY_SOFT_DIRTY, _PAGE_SOFT_DIRTY); #endif - pte_val(pte) |= move_set_bit(rste, _SEGMENT_ENTRY_NOEXEC, - _PAGE_NOEXEC); + pteval |= move_set_bit(rste, _SEGMENT_ENTRY_NOEXEC, _PAGE_NOEXEC); } else - pte_val(pte) = _PAGE_INVALID; - return pte; + pteval = _PAGE_INVALID; + return __pte(pteval); } static void clear_huge_pte_skeys(struct mm_struct *mm, unsigned long rste) @@ -167,7 +160,7 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, rste |= _SEGMENT_ENTRY_LARGE; clear_huge_pte_skeys(mm, rste); - pte_val(*ptep) = rste; + set_pte(ptep, __pte(rste)); } pte_t huge_ptep_get(pte_t *ptep) @@ -244,16 +237,6 @@ int pud_huge(pud_t pud) return pud_large(pud); } -struct page * -follow_huge_pud(struct mm_struct *mm, unsigned long address, - pud_t *pud, int flags) -{ - if (flags & FOLL_GET) - return NULL; - - return pud_page(*pud) + ((address & ~PUD_MASK) >> PAGE_SHIFT); -} - bool __init arch_hugetlb_valid_size(unsigned long size) { if (MACHINE_HAS_EDAT1 && size == PMD_SIZE) |