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| author |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2018-01-31 16:18:05 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2018-01-31 17:18:38 -0800 |
| commit | 9c4563f11fcd5c65efcd64db2b974bd9b1728eef (patch) | |
| tree | 353e50503e2a9a0a99dd0a8535de3f1c1679d5fd /arch | |
| parent | powerpc/mm: update pmdp_invalidate to return old pmd value (diff) | |
| download | linux-dev-9c4563f11fcd5c65efcd64db2b974bd9b1728eef.tar.xz linux-dev-9c4563f11fcd5c65efcd64db2b974bd9b1728eef.zip | |
s390/mm: modify pmdp_invalidate to return old value.
It's required to avoid losing dirty and accessed bits.
Link: http://lkml.kernel.org/r/20171213105756.69879-8-kirill.shutemov@linux.intel.com
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/include/asm/pgtable.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 0a6b0286c32e..2d24d33bf188 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -1505,12 +1505,12 @@ 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 |