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 */ _
