[PATCH v4 07/11] hugetlb: Introduce generic version of huge_pte_wrprotect
From: Alexandre Ghiti <alex@ghiti.fr>
Date: 2018-07-05 11:16:04
Also in:
linux-arch, linux-arm-kernel, linux-mips, linux-sh, lkml, sparclinux
Subsystem:
arm port, arm64 port (aarch64 architecture), generic include/asm header files, linux for powerpc (32-bit and 64-bit), mips, parisc architecture, sparc + ultrasparc (sparc/sparc64), superh, the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Russell King, Catalin Marinas, Will Deacon, Arnd Bergmann, Madhavan Srinivasan, Michael Ellerman, Thomas Bogendoerfer, "James E.J. Bottomley", Helge Deller, "David S. Miller", Andreas Larsson, Yoshinori Sato, Rich Felker, John Paul Adrian Glaubitz, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
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. Signed-off-by: Alexandre Ghiti <alex@ghiti.fr> --- 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(-)
diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 3d2ce4dbc145..1e718a626ef9 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h@@ -43,11 +43,6 @@ static inline int prepare_hugepage_range(struct file *file, 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);
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 49247c6f94db..1fd64ebf0cd7 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h@@ -42,11 +42,6 @@ static inline int prepare_hugepage_range(struct file *file, 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);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index bf573500b3c4..82fe3d7a38d9 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h@@ -26,11 +26,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, { } -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) {
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index 1c9c4531376c..b3d6bb53ee6e 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h@@ -62,11 +62,6 @@ static inline int huge_pte_none(pte_t pte) 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) {
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index c09d8c74553c..5a102d7251e4 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h@@ -38,11 +38,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, { } -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);
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 3562d46585ba..7123599089c6 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h@@ -152,11 +152,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, 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);
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index a9f8266f33cf..54f65094efe6 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h@@ -31,11 +31,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, { } -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) {
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 11115bbd712e..f661362376e0 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h@@ -48,11 +48,6 @@ static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, { } -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) {
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index c5fdc53b6e41..19668672ab37 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h@@ -27,11 +27,6 @@ static inline int prepare_hugepage_range(struct file *file, 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) {
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 2fc3d68424e9..cd9697672b79 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h@@ -80,4 +80,11 @@ static inline int huge_pte_none(pte_t pte) } #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 */
--
2.16.2