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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.

Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Link: http://lkml.kernel.org/r/1588907271-11920-4-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Anshuman Khandual 2020-06-03 16:01:05 -07:00 committed by Linus Torvalds
parent b0eae98c66
commit 5be9934328
12 changed files with 9 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm/include/asm/hugetlb.h
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@ -18,5 +18,6 @@ static inline void arch_clear_hugepage_flags(struct page *page)
{ {
clear_bit(PG_dcache_clean, &page->flags); clear_bit(PG_dcache_clean, &page->flags);
} }
#define arch_clear_hugepage_flags arch_clear_hugepage_flags
#endif /* _ASM_ARM_HUGETLB_H */ #endif /* _ASM_ARM_HUGETLB_H */

1
arch/arm64/include/asm/hugetlb.h
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@ -21,6 +21,7 @@ static inline void arch_clear_hugepage_flags(struct page *page)
{ {
clear_bit(PG_dcache_clean, &page->flags); 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, extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
struct page *page, int writable); struct page *page, int writable);

4
arch/ia64/include/asm/hugetlb.h
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@ -28,10 +28,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
{ {
} }
static inline void arch_clear_hugepage_flags(struct page *page)
{
}
#include <asm-generic/hugetlb.h> #include <asm-generic/hugetlb.h>
#endif /* _ASM_IA64_HUGETLB_H */ #endif /* _ASM_IA64_HUGETLB_H */

4
arch/mips/include/asm/hugetlb.h
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@ -75,10 +75,6 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
return changed; return changed;
} }
static inline void arch_clear_hugepage_flags(struct page *page)
{
}
#include <asm-generic/hugetlb.h> #include <asm-generic/hugetlb.h>
#endif /* __ASM_HUGETLB_H */ #endif /* __ASM_HUGETLB_H */

4
arch/parisc/include/asm/hugetlb.h
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@ -42,10 +42,6 @@ int huge_ptep_set_access_flags(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep, unsigned long addr, pte_t *ptep,
pte_t pte, int dirty); pte_t pte, int dirty);
static inline void arch_clear_hugepage_flags(struct page *page)
{
}
#include <asm-generic/hugetlb.h> #include <asm-generic/hugetlb.h>
#endif /* _ASM_PARISC64_HUGETLB_H */ #endif /* _ASM_PARISC64_HUGETLB_H */

4
arch/powerpc/include/asm/hugetlb.h
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@ -61,10 +61,6 @@ int huge_ptep_set_access_flags(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep, unsigned long addr, pte_t *ptep,
pte_t pte, int dirty); pte_t pte, int dirty);
static inline void arch_clear_hugepage_flags(struct page *page)
{
}
#include <asm-generic/hugetlb.h> #include <asm-generic/hugetlb.h>
#else /* ! CONFIG_HUGETLB_PAGE */ #else /* ! CONFIG_HUGETLB_PAGE */

4
arch/riscv/include/asm/hugetlb.h
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@ -5,8 +5,4 @@
#include <asm-generic/hugetlb.h> #include <asm-generic/hugetlb.h>
#include <asm/page.h> #include <asm/page.h>
static inline void arch_clear_hugepage_flags(struct page *page)
{
}
#endif /* _ASM_RISCV_HUGETLB_H */ #endif /* _ASM_RISCV_HUGETLB_H */

1
arch/s390/include/asm/hugetlb.h
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@ -39,6 +39,7 @@ static inline void arch_clear_hugepage_flags(struct page *page)
{ {
clear_bit(PG_arch_1, &page->flags); 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, static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, unsigned long sz) pte_t *ptep, unsigned long sz)

1
arch/sh/include/asm/hugetlb.h
View File

@ -30,6 +30,7 @@ static inline void arch_clear_hugepage_flags(struct page *page)
{ {
clear_bit(PG_dcache_clean, &page->flags); clear_bit(PG_dcache_clean, &page->flags);
} }
#define arch_clear_hugepage_flags arch_clear_hugepage_flags
#include <asm-generic/hugetlb.h> #include <asm-generic/hugetlb.h>

4
arch/sparc/include/asm/hugetlb.h
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@ -47,10 +47,6 @@ static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
return changed; return changed;
} }
static inline void arch_clear_hugepage_flags(struct page *page)
{
}
#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE #define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr, void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
unsigned long end, unsigned long floor, unsigned long end, unsigned long floor,

4
arch/x86/include/asm/hugetlb.h
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@ -7,8 +7,4 @@
#define hugepages_supported() boot_cpu_has(X86_FEATURE_PSE) #define hugepages_supported() boot_cpu_has(X86_FEATURE_PSE)
static inline void arch_clear_hugepage_flags(struct page *page)
{
}
#endif /* _ASM_X86_HUGETLB_H */ #endif /* _ASM_X86_HUGETLB_H */

5
include/linux/hugetlb.h
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@ -600,6 +600,11 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
#define is_hugepage_only_range is_hugepage_only_range #define is_hugepage_only_range is_hugepage_only_range
#endif #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 #ifndef arch_make_huge_pte
static inline pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma, static inline pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
struct page *page, int writable) struct page *page, int writable)