Messages in this thread Patch in this message | | | From | "Kirill A. Shutemov" <> | Subject | [PATCHv4 07/12] s390/mm: Modify pmdp_invalidate to return old value. | Date | Wed, 13 Dec 2017 13:57:51 +0300 |
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From: Martin Schwidefsky <schwidefsky@de.ibm.com>
It's required to avoid losing dirty and accessed bits.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> --- arch/s390/include/asm/pgtable.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 57d7bc92e0b8..4c72c55828c1 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -1511,12 +1511,12 @@ static inline pmd_t pmdp_huge_clear_flush(struct vm_area_struct *vma, } #define __HAVE_ARCH_PMDP_INVALIDATE -static inline void pmdp_invalidate(struct vm_area_struct *vma, +static inline pmd_t pmdp_invalidate(struct vm_area_struct *vma, unsigned long addr, pmd_t *pmdp) { pmd_t pmd = __pmd(pmd_val(*pmdp) | _SEGMENT_ENTRY_INVALID); - pmdp_xchg_direct(vma->vm_mm, addr, pmdp, pmd); + return pmdp_xchg_direct(vma->vm_mm, addr, pmdp, pmd); } #define __HAVE_ARCH_PMDP_SET_WRPROTECT -- 2.15.0
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