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powerpc/nohash: Refactor ptep_test_and_clear_young()

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Remove ptep_test_and_clear_young() macro, make
__ptep_test_and_clear_young() common to nohash/32 and nohash/64
and change it to become ptep_test_and_clear_young()

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/de90679ae169104fa3c98d0a8828d7ede228fc52.1695659959.git.christophe.leroy@csgroup.eu
This commit is contained in:
Christophe Leroy 2023-09-25 20:31:30 +02:00 committed by Michael Ellerman
parent 3a4288164d
commit 8c3d9eb323
3 changed files with 12 additions and 29 deletions
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11
arch/powerpc/include/asm/nohash/32/pgtable.h
View File

@ -164,17 +164,6 @@ static inline void pmd_clear(pmd_t *pmdp)
*pmdp = __pmd(0);
}
#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
static inline int __ptep_test_and_clear_young(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
unsigned long old;
old = pte_update(mm, addr, ptep, _PAGE_ACCESSED, 0, 0);
return (old & _PAGE_ACCESSED) != 0;
}
#define ptep_test_and_clear_young(__vma, __addr, __ptep) \
__ptep_test_and_clear_young((__vma)->vm_mm, __addr, __ptep)
#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
pte_t *ptep)

19
arch/powerpc/include/asm/nohash/64/pgtable.h
View File

@ -145,22 +145,6 @@ static inline void p4d_set(p4d_t *p4dp, unsigned long val)
*p4dp = __p4d(val);
}
static inline int __ptep_test_and_clear_young(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
unsigned long old;
old = pte_update(mm, addr, ptep, _PAGE_ACCESSED, 0, 0);
return (old & _PAGE_ACCESSED) != 0;
}
#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
#define ptep_test_and_clear_young(__vma, __addr, __ptep) \
({ \
int __r; \
__r = __ptep_test_and_clear_young((__vma)->vm_mm, __addr, __ptep); \
__r; \
})
#define __HAVE_ARCH_PTEP_SET_WRPROTECT
static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
pte_t *ptep)
@ -178,8 +162,7 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
#define __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH
#define ptep_clear_flush_young(__vma, __address, __ptep) \
({ \
int __young = __ptep_test_and_clear_young((__vma)->vm_mm, __address, \
__ptep); \
int __young = ptep_test_and_clear_young(__vma, __address, __ptep);\
__young; \
})

11
arch/powerpc/include/asm/nohash/pgtable.h
View File

@ -69,6 +69,17 @@ static inline pte_basic_t pte_update(struct mm_struct *mm, unsigned long addr, p
}
#endif
static inline int ptep_test_and_clear_young(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep)
{
unsigned long old;
old = pte_update(vma->vm_mm, addr, ptep, _PAGE_ACCESSED, 0, 0);
return (old & _PAGE_ACCESSED) != 0;
}
#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
/* Generic accessors to PTE bits */
#ifndef pte_mkwrite_novma
static inline pte_t pte_mkwrite_novma(pte_t pte)