diff options
| author | Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> | 2019-03-05 15:46:29 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-05 21:07:18 -0800 |
| commit | 04a8645304500be88b3345b65fef7efe58016166 (patch) | |
| tree | ceb2ef0dd25791e44b236804f32ede418e89f79d /arch/s390 | |
| parent | 0cbe3e26abe0cfe7effb67f620a77d46cce628b2 (diff) | |
| download | linux-04a8645304500be88b3345b65fef7efe58016166.tar.bz2 | |
mm: update ptep_modify_prot_commit to take old pte value as arg
Architectures like ppc64 require to do a conditional tlb flush based on
the old and new value of pte. Enable that by passing old pte value as
the arg.
Link: http://lkml.kernel.org/r/20190116085035.29729-3-aneesh.kumar@linux.ibm.com
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/pgtable.h | 3 | ||||
| -rw-r--r-- | arch/s390/mm/pgtable.c | 2 |
2 files changed, 3 insertions, 2 deletions
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 5d730199e37b..76dc344edb8c 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -1070,7 +1070,8 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, #define __HAVE_ARCH_PTEP_MODIFY_PROT_TRANSACTION pte_t ptep_modify_prot_start(struct vm_area_struct *, unsigned long, pte_t *); -void ptep_modify_prot_commit(struct vm_area_struct *, unsigned long, pte_t *, pte_t); +void ptep_modify_prot_commit(struct vm_area_struct *, unsigned long, + pte_t *, pte_t, pte_t); #define __HAVE_ARCH_PTEP_CLEAR_FLUSH static inline pte_t ptep_clear_flush(struct vm_area_struct *vma, diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c index 71aa01170768..8485d6dc2754 100644 --- a/arch/s390/mm/pgtable.c +++ b/arch/s390/mm/pgtable.c @@ -321,7 +321,7 @@ pte_t ptep_modify_prot_start(struct vm_area_struct *vma, unsigned long addr, } void ptep_modify_prot_commit(struct vm_area_struct *vma, unsigned long addr, - pte_t *ptep, pte_t pte) + pte_t *ptep, pte_t old_pte, pte_t pte) { pgste_t pgste; struct mm_struct *mm = vma->vm_mm; |