[PATCHv3 07/11] s390/mm: Modify pmdp_invalidate to return old value.
From: Kirill A. Shutemov <hidden>
Date: 2017-09-12 15:42:10
Also in:
linux-mm, lkml
Subsystem:
s390 architecture, s390 mm, the rest · Maintainers:
Heiko Carstens, Vasily Gorbik, Alexander Gordeev, Gerald Schaefer, Linus Torvalds
From: Martin Schwidefsky <redacted> It's required to avoid loosing dirty and accessed bits. Signed-off-by: Martin Schwidefsky <redacted> Signed-off-by: Kirill A. Shutemov <redacted> --- arch/s390/include/asm/pgtable.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index dce708e061ea..d3de8ddc55ec 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h@@ -1504,10 +1504,11 @@ 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) { - pmdp_xchg_direct(vma->vm_mm, addr, pmdp, __pmd(_SEGMENT_ENTRY_EMPTY)); + return pmdp_xchg_direct(vma->vm_mm, addr, pmdp, + __pmd(_SEGMENT_ENTRY_EMPTY)); } #define __HAVE_ARCH_PMDP_SET_WRPROTECT
--
2.14.1