# \[PATCHv4 07/12\] s390/mm: Modify pmdp\_invalidate to return old value. - From: Kirill A. Shutemov \ - Date: 2017-12-13 10:59:48 - List: linux-arch - Page: https://ratatoskr.run/linux-arch/2017/12/5157149 - Thread: https://ratatoskr.run/linux-arch/2017/12/5157155/t.md ```text From: Martin Schwidefsky It's required to avoid losing dirty and accessed bits. Signed-off-by: Martin Schwidefsky Signed-off-by: Kirill A. Shutemov --- 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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org ```