The patch titled
Subject: hugetlb: introduce generic version of huge_pte_wrprotect
has been added to the -mm tree. Its filename is
hugetlb-introduce-generic-version-of-huge_pte_wrprotect.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/hugetlb-introduce-generic-version-of-huge_pte_wrprotect.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/hugetlb-introduce-generic-version-of-huge_pte_wrprotect.patch
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------------------------------------------------------
From: Alexandre Ghiti <alex@xxxxxxxx>
Subject: hugetlb: introduce generic version of huge_pte_wrprotect
arm, arm64, ia64, mips, parisc, powerpc, sh, sparc, x86 architectures use
the same version of huge_pte_wrprotect, so move this generic
implementation into asm-generic/hugetlb.h.
Link: http://lkml.kernel.org/r/20180920060358.16606-8-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.h | 5 -----
arch/arm64/include/asm/hugetlb.h | 5 -----
arch/ia64/include/asm/hugetlb.h | 5 -----
arch/mips/include/asm/hugetlb.h | 5 -----
arch/parisc/include/asm/hugetlb.h | 5 -----
arch/powerpc/include/asm/hugetlb.h | 5 -----
arch/sh/include/asm/hugetlb.h | 5 -----
arch/sparc/include/asm/hugetlb.h | 5 -----
arch/x86/include/asm/hugetlb.h | 5 -----
include/asm-generic/hugetlb.h | 7 +++++++
10 files changed, 7 insertions(+), 45 deletions(-)
--- a/arch/arm64/include/asm/hugetlb.h~hugetlb-introduce-generic-version-of-huge_pte_wrprotect
+++ a/arch/arm64/include/asm/hugetlb.h
@@ -42,11 +42,6 @@ static inline int prepare_hugepage_range
return 0;
}
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
- return pte_wrprotect(pte);
-}
-
static inline void arch_clear_hugepage_flags(struct page *page)
{
clear_bit(PG_dcache_clean, &page->flags);
--- a/arch/arm/include/asm/hugetlb.h~hugetlb-introduce-generic-version-of-huge_pte_wrprotect
+++ a/arch/arm/include/asm/hugetlb.h
@@ -44,11 +44,6 @@ static inline int prepare_hugepage_range
return 0;
}
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
- return pte_wrprotect(pte);
-}
-
static inline void arch_clear_hugepage_flags(struct page *page)
{
clear_bit(PG_dcache_clean, &page->flags);
--- a/arch/ia64/include/asm/hugetlb.h~hugetlb-introduce-generic-version-of-huge_pte_wrprotect
+++ a/arch/ia64/include/asm/hugetlb.h
@@ -26,11 +26,6 @@ static inline void huge_ptep_clear_flush
{
}
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
- return pte_wrprotect(pte);
-}
-
static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
--- a/arch/mips/include/asm/hugetlb.h~hugetlb-introduce-generic-version-of-huge_pte_wrprotect
+++ a/arch/mips/include/asm/hugetlb.h
@@ -62,11 +62,6 @@ static inline int huge_pte_none(pte_t pt
return !val || (val == (unsigned long)invalid_pte_table);
}
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
- return pte_wrprotect(pte);
-}
-
static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
--- a/arch/parisc/include/asm/hugetlb.h~hugetlb-introduce-generic-version-of-huge_pte_wrprotect
+++ a/arch/parisc/include/asm/hugetlb.h
@@ -38,11 +38,6 @@ static inline void huge_ptep_clear_flush
{
}
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
- return pte_wrprotect(pte);
-}
-
void huge_ptep_set_wrprotect(struct mm_struct *mm,
unsigned long addr, pte_t *ptep);
--- a/arch/powerpc/include/asm/hugetlb.h~hugetlb-introduce-generic-version-of-huge_pte_wrprotect
+++ a/arch/powerpc/include/asm/hugetlb.h
@@ -149,11 +149,6 @@ static inline void huge_ptep_clear_flush
flush_hugetlb_page(vma, addr);
}
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
- return pte_wrprotect(pte);
-}
-
extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep,
pte_t pte, int dirty);
--- a/arch/sh/include/asm/hugetlb.h~hugetlb-introduce-generic-version-of-huge_pte_wrprotect
+++ a/arch/sh/include/asm/hugetlb.h
@@ -31,11 +31,6 @@ static inline void huge_ptep_clear_flush
{
}
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
- return pte_wrprotect(pte);
-}
-
static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
--- a/arch/sparc/include/asm/hugetlb.h~hugetlb-introduce-generic-version-of-huge_pte_wrprotect
+++ a/arch/sparc/include/asm/hugetlb.h
@@ -48,11 +48,6 @@ static inline void huge_ptep_clear_flush
{
}
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
- return pte_wrprotect(pte);
-}
-
static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
--- a/arch/x86/include/asm/hugetlb.h~hugetlb-introduce-generic-version-of-huge_pte_wrprotect
+++ a/arch/x86/include/asm/hugetlb.h
@@ -28,11 +28,6 @@ static inline int prepare_hugepage_range
return 0;
}
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
- return pte_wrprotect(pte);
-}
-
static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
--- a/include/asm-generic/hugetlb.h~hugetlb-introduce-generic-version-of-huge_pte_wrprotect
+++ a/include/asm-generic/hugetlb.h
@@ -80,4 +80,11 @@ static inline int huge_pte_none(pte_t pt
}
#endif
+#ifndef __HAVE_ARCH_HUGE_PTE_WRPROTECT
+static inline pte_t huge_pte_wrprotect(pte_t pte)
+{
+ return pte_wrprotect(pte);
+}
+#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
