The patch titled
Subject: mm/hugetlb: define a generic fallback for arch_clear_hugepage_flags()
has been added to the -mm tree. Its filename is
mm-hugetlb-define-a-generic-fallback-for-arch_clear_hugepage_flags.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-hugetlb-define-a-generic-fallback-for-arch_clear_hugepage_flags.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-hugetlb-define-a-generic-fallback-for-arch_clear_hugepage_flags.patch
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------------------------------------------------------
From: Anshuman Khandual <anshuman.khandual@xxxxxxx>
Subject: mm/hugetlb: define a generic fallback for arch_clear_hugepage_flags()
There are multiple similar definitions for arch_clear_hugepage_flags() on
various platforms. Lets just add it's generic fallback definition for
platforms that do not override. This help reduce code duplication.
Link: http://lkml.kernel.org/r/1588907271-11920-4-git-send-email-anshuman.khandual@xxxxxxx
Signed-off-by: Anshuman Khandual <anshuman.khandual@xxxxxxx>
Acked-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: Fenghua Yu <fenghua.yu@xxxxxxxxx>
Cc: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
Cc: "James E.J. Bottomley" <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx>
Cc: Helge Deller <deller@xxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Paul Walmsley <paul.walmsley@xxxxxxxxxx>
Cc: Palmer Dabbelt <palmer@xxxxxxxxxxx>
Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
Cc: Vasily Gorbik <gor@xxxxxxxxxxxxx>
Cc: Christian Borntraeger <borntraeger@xxxxxxxxxx>
Cc: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
Cc: Rich Felker <dalias@xxxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/arm/include/asm/hugetlb.h | 1 +
arch/arm64/include/asm/hugetlb.h | 1 +
arch/ia64/include/asm/hugetlb.h | 4 ----
arch/mips/include/asm/hugetlb.h | 4 ----
arch/parisc/include/asm/hugetlb.h | 4 ----
arch/powerpc/include/asm/hugetlb.h | 4 ----
arch/riscv/include/asm/hugetlb.h | 4 ----
arch/s390/include/asm/hugetlb.h | 1 +
arch/sh/include/asm/hugetlb.h | 1 +
arch/sparc/include/asm/hugetlb.h | 4 ----
arch/x86/include/asm/hugetlb.h | 4 ----
include/linux/hugetlb.h | 5 +++++
12 files changed, 9 insertions(+), 28 deletions(-)
--- a/arch/arm64/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-arch_clear_hugepage_flags
+++ a/arch/arm64/include/asm/hugetlb.h
@@ -21,6 +21,7 @@ static inline void arch_clear_hugepage_f
{
clear_bit(PG_dcache_clean, &page->flags);
}
+#define arch_clear_hugepage_flags arch_clear_hugepage_flags
extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
struct page *page, int writable);
--- a/arch/arm/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-arch_clear_hugepage_flags
+++ a/arch/arm/include/asm/hugetlb.h
@@ -18,5 +18,6 @@ static inline void arch_clear_hugepage_f
{
clear_bit(PG_dcache_clean, &page->flags);
}
+#define arch_clear_hugepage_flags arch_clear_hugepage_flags
#endif /* _ASM_ARM_HUGETLB_H */
--- a/arch/ia64/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-arch_clear_hugepage_flags
+++ a/arch/ia64/include/asm/hugetlb.h
@@ -28,10 +28,6 @@ static inline void huge_ptep_clear_flush
{
}
-static inline void arch_clear_hugepage_flags(struct page *page)
-{
-}
-
#include <asm-generic/hugetlb.h>
#endif /* _ASM_IA64_HUGETLB_H */
--- a/arch/mips/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-arch_clear_hugepage_flags
+++ a/arch/mips/include/asm/hugetlb.h
@@ -75,10 +75,6 @@ static inline int huge_ptep_set_access_f
return changed;
}
-static inline void arch_clear_hugepage_flags(struct page *page)
-{
-}
-
#include <asm-generic/hugetlb.h>
#endif /* __ASM_HUGETLB_H */
--- a/arch/parisc/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-arch_clear_hugepage_flags
+++ a/arch/parisc/include/asm/hugetlb.h
@@ -42,10 +42,6 @@ int huge_ptep_set_access_flags(struct vm
unsigned long addr, pte_t *ptep,
pte_t pte, int dirty);
-static inline void arch_clear_hugepage_flags(struct page *page)
-{
-}
-
#include <asm-generic/hugetlb.h>
#endif /* _ASM_PARISC64_HUGETLB_H */
--- a/arch/powerpc/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-arch_clear_hugepage_flags
+++ a/arch/powerpc/include/asm/hugetlb.h
@@ -61,10 +61,6 @@ int huge_ptep_set_access_flags(struct vm
unsigned long addr, pte_t *ptep,
pte_t pte, int dirty);
-static inline void arch_clear_hugepage_flags(struct page *page)
-{
-}
-
#include <asm-generic/hugetlb.h>
#else /* ! CONFIG_HUGETLB_PAGE */
--- a/arch/riscv/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-arch_clear_hugepage_flags
+++ a/arch/riscv/include/asm/hugetlb.h
@@ -5,8 +5,4 @@
#include <asm-generic/hugetlb.h>
#include <asm/page.h>
-static inline void arch_clear_hugepage_flags(struct page *page)
-{
-}
-
#endif /* _ASM_RISCV_HUGETLB_H */
--- a/arch/s390/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-arch_clear_hugepage_flags
+++ a/arch/s390/include/asm/hugetlb.h
@@ -39,6 +39,7 @@ static inline void arch_clear_hugepage_f
{
clear_bit(PG_arch_1, &page->flags);
}
+#define arch_clear_hugepage_flags arch_clear_hugepage_flags
static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, unsigned long sz)
--- a/arch/sh/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-arch_clear_hugepage_flags
+++ a/arch/sh/include/asm/hugetlb.h
@@ -30,6 +30,7 @@ static inline void arch_clear_hugepage_f
{
clear_bit(PG_dcache_clean, &page->flags);
}
+#define arch_clear_hugepage_flags arch_clear_hugepage_flags
#include <asm-generic/hugetlb.h>
--- a/arch/sparc/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-arch_clear_hugepage_flags
+++ a/arch/sparc/include/asm/hugetlb.h
@@ -47,10 +47,6 @@ static inline int huge_ptep_set_access_f
return changed;
}
-static inline void arch_clear_hugepage_flags(struct page *page)
-{
-}
-
#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
unsigned long end, unsigned long floor,
--- a/arch/x86/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-arch_clear_hugepage_flags
+++ a/arch/x86/include/asm/hugetlb.h
@@ -7,8 +7,4 @@
#define hugepages_supported() boot_cpu_has(X86_FEATURE_PSE)
-static inline void arch_clear_hugepage_flags(struct page *page)
-{
-}
-
#endif /* _ASM_X86_HUGETLB_H */
--- a/include/linux/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-arch_clear_hugepage_flags
+++ a/include/linux/hugetlb.h
@@ -600,6 +600,11 @@ static inline int is_hugepage_only_range
#define is_hugepage_only_range is_hugepage_only_range
#endif
+#ifndef arch_clear_hugepage_flags
+static inline void arch_clear_hugepage_flags(struct page *page) { }
+#define arch_clear_hugepage_flags arch_clear_hugepage_flags
+#endif
+
#ifndef arch_make_huge_pte
static inline pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
struct page *page, int writable)
_
Patches currently in -mm which might be from anshuman.khandual@xxxxxxx are
arm64-mm-drop-__have_arch_huge_ptep_get.patch
mm-hugetlb-define-a-generic-fallback-for-is_hugepage_only_range.patch
mm-hugetlb-define-a-generic-fallback-for-arch_clear_hugepage_flags.patch
powerpc-mm-drop-platform-defined-pmd_mknotpresent.patch
mm-thp-rename-pmd_mknotpresent-as-pmd_mknotvalid.patch
mm-thp-rename-pmd_mknotpresent-as-pmd_mkinvalid-v2.patch
x86-mm-define-mm_p4d_folded.patch
mm-debug-add-tests-validating-architecture-page-table-helpers.patch
mm-debug-add-tests-validating-architecture-page-table-helpers-v17.patch
mm-debug-add-tests-validating-architecture-page-table-helpers-v18.patch
