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| author |   Gerald Schaefer <gerald.schaefer@de.ibm.com> | 2016-07-04 14:47:01 +0200 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-07-06 08:46:43 +0200 |
| commit | d08de8e2d86744f91d9d5d57c56ca2b6e33bf6ec (patch) | |
| tree | 2bcf0bcb5ec30e48eb82fbc7e3a216cab8671f04 /arch/s390/include/asm/hugetlb.h | |
| parent | s390: have unique symbol for __switch_to address (diff) | |
| download | linux-dev-d08de8e2d86744f91d9d5d57c56ca2b6e33bf6ec.tar.xz linux-dev-d08de8e2d86744f91d9d5d57c56ca2b6e33bf6ec.zip | |
s390/mm: add support for 2GB hugepages
This adds support for 2GB hugetlbfs pages on s390.
Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/hugetlb.h')
| -rw-r--r-- | arch/s390/include/asm/hugetlb.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h index d9be7c0c1291..4c7fac75090e 100644 --- a/arch/s390/include/asm/hugetlb.h +++ b/arch/s390/include/asm/hugetlb.h @@ -41,7 +41,10 @@ static inline int prepare_hugepage_range(struct file *file, static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { - pte_val(*ptep) = _SEGMENT_ENTRY_EMPTY; + if ((pte_val(*ptep) & _REGION_ENTRY_TYPE_MASK) == _REGION_ENTRY_TYPE_R3) + pte_val(*ptep) = _REGION3_ENTRY_EMPTY; + else + pte_val(*ptep) = _SEGMENT_ENTRY_EMPTY; } static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, |