The patch titled
Subject: hugetlb: introduce generic version of huge_ptep_get_and_clear()
has been added to the -mm tree. Its filename is
hugetlb-introduce-generic-version-of-huge_ptep_get_and_clear.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/hugetlb-introduce-generic-version-of-huge_ptep_get_and_clear.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/hugetlb-introduce-generic-version-of-huge_ptep_get_and_clear.patch
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Alexandre Ghiti <alex@xxxxxxxx>
Subject: 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.
Link: http://lkml.kernel.org/r/20180920060358.16606-5-alex@xxxxxxxx
Signed-off-by: Alexandre Ghiti <alex@xxxxxxxx>
Reviewed-by: Luiz Capitulino <lcapitulino@xxxxxxxxxx>
Reviewed-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Tested-by: Helge Deller <deller@xxxxxx> [parisc]
Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx> [arm64]
Acked-by: Paul Burton <paul.burton@xxxxxxxx> [MIPS]
Acked-by: Ingo Molnar <mingo@xxxxxxxxxx> [x86]
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: David S. Miller <davem@xxxxxxxxxxxxx>
Cc: Fenghua Yu <fenghua.yu@xxxxxxxxx>
Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Cc: H. Peter Anvin <hpa@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: James E.J. Bottomley <jejb@xxxxxxxxxxxxxxxx>
Cc: James Hogan <jhogan@xxxxxxxxxx>
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Cc: Rich Felker <dalias@xxxxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: Will Deacon <will.deacon@xxxxxxx>
Cc: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
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(-)
--- a/arch/arm64/include/asm/hugetlb.h~hugetlb-introduce-generic-version-of-huge_ptep_get_and_clear
+++ a/arch/arm64/include/asm/hugetlb.h
@@ -66,6 +66,7 @@ extern void set_huge_pte_at(struct mm_st
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,
--- a/arch/arm/include/asm/hugetlb-3level.h~hugetlb-introduce-generic-version-of-huge_ptep_get_and_clear
+++ a/arch/arm/include/asm/hugetlb-3level.h
@@ -49,12 +49,6 @@ static inline void huge_ptep_set_wrprote
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)
--- a/arch/ia64/include/asm/hugetlb.h~hugetlb-introduce-generic-version-of-huge_ptep_get_and_clear
+++ a/arch/ia64/include/asm/hugetlb.h
@@ -20,12 +20,6 @@ static inline int is_hugepage_only_range
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)
{
--- a/arch/mips/include/asm/hugetlb.h~hugetlb-introduce-generic-version-of-huge_ptep_get_and_clear
+++ a/arch/mips/include/asm/hugetlb.h
@@ -36,6 +36,7 @@ static inline int prepare_hugepage_range
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)
{
--- a/arch/parisc/include/asm/hugetlb.h~hugetlb-introduce-generic-version-of-huge_ptep_get_and_clear
+++ a/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);
--- a/arch/powerpc/include/asm/hugetlb.h~hugetlb-introduce-generic-version-of-huge_ptep_get_and_clear
+++ a/arch/powerpc/include/asm/hugetlb.h
@@ -129,6 +129,7 @@ static inline int prepare_hugepage_range
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)
{
--- a/arch/sh/include/asm/hugetlb.h~hugetlb-introduce-generic-version-of-huge_ptep_get_and_clear
+++ a/arch/sh/include/asm/hugetlb.h
@@ -25,12 +25,6 @@ static inline int prepare_hugepage_range
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)
{
--- a/arch/sparc/include/asm/hugetlb.h~hugetlb-introduce-generic-version-of-huge_ptep_get_and_clear
+++ a/arch/sparc/include/asm/hugetlb.h
@@ -16,6 +16,7 @@ extern struct pud_huge_patch_entry __pud
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);
--- a/arch/x86/include/asm/hugetlb.h~hugetlb-introduce-generic-version-of-huge_ptep_get_and_clear
+++ a/arch/x86/include/asm/hugetlb.h
@@ -28,12 +28,6 @@ static inline int prepare_hugepage_range
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)
{
--- a/include/asm-generic/hugetlb.h~hugetlb-introduce-generic-version-of-huge_ptep_get_and_clear
+++ a/include/asm-generic/hugetlb.h
@@ -57,4 +57,12 @@ static inline void set_huge_pte_at(struc
}
#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 */
_
Patches currently in -mm which might be from alex@xxxxxxxx are
hugetlb-harmonize-hugetlbh-arch-specific-defines-with-pgtableh.patch
hugetlb-introduce-generic-version-of-hugetlb_free_pgd_range.patch
hugetlb-introduce-generic-version-of-set_huge_pte_at.patch
hugetlb-introduce-generic-version-of-huge_ptep_get_and_clear.patch
hugetlb-introduce-generic-version-of-huge_ptep_clear_flush.patch
hugetlb-introduce-generic-version-of-huge_pte_none.patch
hugetlb-introduce-generic-version-of-huge_pte_wrprotect.patch
hugetlb-introduce-generic-version-of-prepare_hugepage_range.patch
hugetlb-introduce-generic-version-of-huge_ptep_set_wrprotect.patch
hugetlb-introduce-generic-version-of-huge_ptep_set_access_flags.patch
hugetlb-introduce-generic-version-of-huge_ptep_get.patch
