Subject: [PATCH v5 4/7] powerpc/mm/hugetlb: Make copy of huge_ptep_get_and_clear to different platform headers

From: "Aneesh Kumar K.V" <[email-masked]>
Date: Wed, 23 Nov 2016 16:40:00 +0530

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 <[email-masked]>
---
 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 cd835e74e633..3994c403ad9a 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 4153b8e591a4..8569673682dd 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 7e42b8195e85..f7a973d4b509 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
-- 
2.10.2