[PATCH v4 4/7] powerpc/mm/hugetlb: Make copy of huge_ptep_get_and_clear to different platform headers
From: Aneesh Kumar K.V <hidden>
Date: 2016-11-22 08:02:10
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
In the subsequent patch we will change the implementation of book3s 64. This also avoid #ifdef in the code. Signed-off-by: Aneesh Kumar K.V <redacted> --- arch/powerpc/include/asm/book3s/32/pgtable.h | 5 +++++ arch/powerpc/include/asm/book3s/64/hugetlb.h | 6 ++++++ arch/powerpc/include/asm/hugetlb.h | 10 ---------- arch/powerpc/include/asm/nohash/32/pgtable.h | 6 ++++++ arch/powerpc/include/asm/nohash/64/pgtable.h | 7 +++++++ 5 files changed, 24 insertions(+), 10 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h
index 0713626e9189..959ef2fb812a 100644
--- a/arch/powerpc/include/asm/book3s/32/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/32/pgtable.h@@ -222,6 +222,11 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, ptep_set_wrprotect(mm, addr, ptep); } +static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, + unsigned long addr, pte_t *ptep) +{ + return __pte(pte_update(ptep, ~0UL, 0)); +} static inline void __ptep_set_access_flags(struct mm_struct *mm, pte_t *ptep, pte_t entry,
diff --git a/arch/powerpc/include/asm/book3s/64/hugetlb.h b/arch/powerpc/include/asm/book3s/64/hugetlb.h
index d9c283f95e05..8fc04d2ac86f 100644
--- a/arch/powerpc/include/asm/book3s/64/hugetlb.h
+++ b/arch/powerpc/include/asm/book3s/64/hugetlb.h@@ -30,4 +30,10 @@ static inline int hstate_get_psize(struct hstate *hstate) return mmu_virtual_psize; } } + +static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, + unsigned long addr, pte_t *ptep) +{ + return __pte(pte_update(mm, addr, ptep, ~0UL, 0, 1)); +} #endif
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index c03e0a3dd4d8..8b39806851c0 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h@@ -132,16 +132,6 @@ static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, set_pte_at(mm, addr, ptep, pte); } -static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, - unsigned long addr, pte_t *ptep) -{ -#ifdef CONFIG_PPC64 - return __pte(pte_update(mm, addr, ptep, ~0UL, 0, 1)); -#else - return __pte(pte_update(ptep, ~0UL, 0)); -#endif -} - static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) {
diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h
index 24ee66bf7223..b83b851827ec 100644
--- a/arch/powerpc/include/asm/nohash/32/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/32/pgtable.h@@ -266,6 +266,12 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, ptep_set_wrprotect(mm, addr, ptep); } +static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, + unsigned long addr, pte_t *ptep) +{ + return __pte(pte_update(ptep, ~0UL, 0)); +} + static inline void __ptep_set_access_flags(struct mm_struct *mm, pte_t *ptep, pte_t entry,
diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h
index 86d49dc60ec6..f53f8307a778 100644
--- a/arch/powerpc/include/asm/nohash/64/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/64/pgtable.h@@ -266,6 +266,13 @@ static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, pte_update(mm, addr, ptep, _PAGE_RW, 0, 1); } +static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, + unsigned long addr, pte_t *ptep) +{ + return __pte(pte_update(mm, addr, ptep, ~0UL, 0, 1)); +} + + /* * We currently remove entries from the hashtable regardless of whether * the entry was young or dirty. The generic routines only flush if the
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2.10.2