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Message-Id: <20180806175711.24438-5-alex@ghiti.fr>
Date: Mon, 6 Aug 2018 17:57:04 +0000
From: Alexandre Ghiti <alex@...ti.fr>
To: linux-mm@...ck.org, mike.kravetz@...cle.com, linux@...linux.org.uk,
catalin.marinas@....com, will.deacon@....com, tony.luck@...el.com,
fenghua.yu@...el.com, ralf@...ux-mips.org, paul.burton@...s.com,
jhogan@...nel.org, jejb@...isc-linux.org, deller@....de,
benh@...nel.crashing.org, paulus@...ba.org, mpe@...erman.id.au,
ysato@...rs.sourceforge.jp, dalias@...c.org, davem@...emloft.net,
tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
x86@...nel.org, arnd@...db.de,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
linux-ia64@...r.kernel.org, linux-mips@...ux-mips.org,
linux-parisc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
linux-sh@...r.kernel.org, sparclinux@...r.kernel.org,
linux-arch@...r.kernel.org
Cc: Alexandre Ghiti <alex@...ti.fr>
Subject: [PATCH v6 04/11] hugetlb: Introduce generic version of huge_ptep_get_and_clear
arm, ia64, sh, x86 architectures use the
same version of huge_ptep_get_and_clear, so move this generic
implementation into asm-generic/hugetlb.h.
Signed-off-by: Alexandre Ghiti <alex@...ti.fr>
Tested-by: Helge Deller <deller@....de> # parisc
Acked-by: Catalin Marinas <catalin.marinas@....com> # arm64
Acked-by: Paul Burton <paul.burton@...s.com> # MIPS parts
Reviewed-by: Luiz Capitulino <lcapitulino@...hat.com>
Reviewed-by: Mike Kravetz <mike.kravetz@...cle.com>
---
arch/arm/include/asm/hugetlb-3level.h | 6 ------
arch/arm64/include/asm/hugetlb.h | 1 +
arch/ia64/include/asm/hugetlb.h | 6 ------
arch/mips/include/asm/hugetlb.h | 1 +
arch/parisc/include/asm/hugetlb.h | 1 +
arch/powerpc/include/asm/hugetlb.h | 1 +
arch/sh/include/asm/hugetlb.h | 6 ------
arch/sparc/include/asm/hugetlb.h | 1 +
arch/x86/include/asm/hugetlb.h | 6 ------
include/asm-generic/hugetlb.h | 8 ++++++++
10 files changed, 13 insertions(+), 24 deletions(-)
diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
index 398fb06e8207..ad36e84b819a 100644
--- a/arch/arm/include/asm/hugetlb-3level.h
+++ b/arch/arm/include/asm/hugetlb-3level.h
@@ -49,12 +49,6 @@ 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 ptep_get_and_clear(mm, addr, ptep);
-}
-
static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep,
pte_t pte, int dirty)
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 874661a1dff1..6ae0bcafe162 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -66,6 +66,7 @@ extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep,
pte_t pte, int dirty);
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
unsigned long addr, pte_t *ptep);
extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index a235d6f60fb3..6719c74da0de 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
}
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
- unsigned long addr, pte_t *ptep)
-{
- return ptep_get_and_clear(mm, addr, ptep);
-}
-
static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep)
{
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 8ea439041d5d..0959cc5a41fa 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -36,6 +36,7 @@ static inline int prepare_hugepage_range(struct file *file,
return 0;
}
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index 77c8adbac7c3..6e281e1bb336 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -8,6 +8,7 @@
void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte);
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
pte_t *ptep);
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 0794b53439d4..970101cf9c82 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -132,6 +132,7 @@ static inline int prepare_hugepage_range(struct file *file,
return 0;
}
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index bc552e37c1c9..08ee6c00b5e9 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
return 0;
}
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
- unsigned long addr, pte_t *ptep)
-{
- return ptep_get_and_clear(mm, addr, ptep);
-}
-
static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep)
{
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 16b0c53ea6c9..944e3a4bfaff 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -16,6 +16,7 @@ extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte);
+#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
pte_t *ptep);
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 8db9a761964d..e9e7fef867ad 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -28,12 +28,6 @@ static inline int prepare_hugepage_range(struct file *file,
return 0;
}
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
- unsigned long addr, pte_t *ptep)
-{
- return ptep_get_and_clear(mm, addr, ptep);
-}
-
static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep)
{
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index ee010b756246..0f6f151780dd 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -57,4 +57,12 @@ static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
}
#endif
+#ifndef __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
+static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
+ unsigned long addr, pte_t *ptep)
+{
+ return ptep_get_and_clear(mm, addr, ptep);
+}
+#endif
+
#endif /* _ASM_GENERIC_HUGETLB_H */
--
2.16.2
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