From e21ea246bce5bb93dd822de420172ec280aed492 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Tue, 17 Jul 2007 04:03:03 -0700 Subject: [PATCH] mm: remove ptep_test_and_clear_dirty and ptep_clear_flush_dirty Nobody is using ptep_test_and_clear_dirty and ptep_clear_flush_dirty. Remove the functions from all architectures. Signed-off-by: Martin Schwidefsky Cc: Hugh Dickins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-frv/pgtable.h | 8 -------- include/asm-generic/pgtable.h | 25 ----------------------- include/asm-i386/pgtable.h | 21 ------------------- include/asm-ia64/pgtable.h | 17 ---------------- include/asm-m32r/pgtable.h | 6 ------ include/asm-parisc/pgtable.h | 16 --------------- include/asm-powerpc/pgtable-ppc32.h | 7 ------- include/asm-powerpc/pgtable-ppc64.h | 31 ----------------------------- include/asm-ppc/pgtable.h | 7 ------- include/asm-s390/pgtable.h | 15 -------------- include/asm-x86_64/pgtable.h | 8 -------- include/asm-xtensa/pgtable.h | 12 ----------- 12 files changed, 173 deletions(-) diff --git a/include/asm-frv/pgtable.h b/include/asm-frv/pgtable.h index adde6998525..147e995bec2 100644 --- a/include/asm-frv/pgtable.h +++ b/include/asm-frv/pgtable.h @@ -388,13 +388,6 @@ static inline pte_t pte_mkdirty(pte_t pte) { (pte).pte |= _PAGE_DIRTY; return pt static inline pte_t pte_mkyoung(pte_t pte) { (pte).pte |= _PAGE_ACCESSED; return pte; } static inline pte_t pte_mkwrite(pte_t pte) { (pte).pte &= ~_PAGE_WP; return pte; } -static inline int ptep_test_and_clear_dirty(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) -{ - int i = test_and_clear_bit(_PAGE_BIT_DIRTY, ptep); - asm volatile("dcf %M0" :: "U"(*ptep)); - return i; -} - static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) { int i = test_and_clear_bit(_PAGE_BIT_ACCESSED, ptep); @@ -504,7 +497,6 @@ static inline int pte_file(pte_t pte) remap_pfn_range(vma, vaddr, pfn, size, prot) #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY #define __HAVE_ARCH_PTEP_GET_AND_CLEAR #define __HAVE_ARCH_PTEP_SET_WRPROTECT #define __HAVE_ARCH_PTE_SAME diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h index aa3f1202a17..f605e8d0eed 100644 --- a/include/asm-generic/pgtable.h +++ b/include/asm-generic/pgtable.h @@ -49,31 +49,6 @@ }) #endif -#ifndef __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY -#define ptep_test_and_clear_dirty(__vma, __address, __ptep) \ -({ \ - pte_t __pte = *__ptep; \ - int r = 1; \ - if (!pte_dirty(__pte)) \ - r = 0; \ - else \ - set_pte_at((__vma)->vm_mm, (__address), (__ptep), \ - pte_mkclean(__pte)); \ - r; \ -}) -#endif - -#ifndef __HAVE_ARCH_PTEP_CLEAR_DIRTY_FLUSH -#define ptep_clear_flush_dirty(__vma, __address, __ptep) \ -({ \ - int __dirty; \ - __dirty = ptep_test_and_clear_dirty(__vma, __address, __ptep); \ - if (__dirty) \ - flush_tlb_page(__vma, __address); \ - __dirty; \ -}) -#endif - #ifndef __HAVE_ARCH_PTEP_GET_AND_CLEAR #define ptep_get_and_clear(__mm, __address, __ptep) \ ({ \ diff --git a/include/asm-i386/pgtable.h b/include/asm-i386/pgtable.h index afb1597ec17..c7fefa6b12f 100644 --- a/include/asm-i386/pgtable.h +++ b/include/asm-i386/pgtable.h @@ -289,17 +289,6 @@ static inline pte_t native_local_ptep_get_and_clear(pte_t *ptep) __changed; \ }) -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY -#define ptep_test_and_clear_dirty(vma, addr, ptep) ({ \ - int __ret = 0; \ - if (pte_dirty(*(ptep))) \ - __ret = test_and_clear_bit(_PAGE_BIT_DIRTY, \ - &(ptep)->pte_low); \ - if (__ret) \ - pte_update((vma)->vm_mm, addr, ptep); \ - __ret; \ -}) - #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG #define ptep_test_and_clear_young(vma, addr, ptep) ({ \ int __ret = 0; \ @@ -311,16 +300,6 @@ static inline pte_t native_local_ptep_get_and_clear(pte_t *ptep) __ret; \ }) -#define __HAVE_ARCH_PTEP_CLEAR_DIRTY_FLUSH -#define ptep_clear_flush_dirty(vma, address, ptep) \ -({ \ - int __dirty; \ - __dirty = ptep_test_and_clear_dirty((vma), (address), (ptep)); \ - if (__dirty) \ - flush_tlb_page(vma, address); \ - __dirty; \ -}) - #define __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH #define ptep_clear_flush_young(vma, address, ptep) \ ({ \ diff --git a/include/asm-ia64/pgtable.h b/include/asm-ia64/pgtable.h index 47642e06b92..de6d01e24dd 100644 --- a/include/asm-ia64/pgtable.h +++ b/include/asm-ia64/pgtable.h @@ -395,22 +395,6 @@ ptep_test_and_clear_young (struct vm_area_struct *vma, unsigned long addr, pte_t #endif } -static inline int -ptep_test_and_clear_dirty (struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) -{ -#ifdef CONFIG_SMP - if (!pte_dirty(*ptep)) - return 0; - return test_and_clear_bit(_PAGE_D_BIT, ptep); -#else - pte_t pte = *ptep; - if (!pte_dirty(pte)) - return 0; - set_pte_at(vma->vm_mm, addr, ptep, pte_mkclean(pte)); - return 1; -#endif -} - static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { @@ -590,7 +574,6 @@ extern void lazy_mmu_prot_update (pte_t pte); #endif #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY #define __HAVE_ARCH_PTEP_GET_AND_CLEAR #define __HAVE_ARCH_PTEP_SET_WRPROTECT #define __HAVE_ARCH_PTE_SAME diff --git a/include/asm-m32r/pgtable.h b/include/asm-m32r/pgtable.h index 35af58c6b81..92d7266783f 100644 --- a/include/asm-m32r/pgtable.h +++ b/include/asm-m32r/pgtable.h @@ -250,11 +250,6 @@ static inline pte_t pte_mkwrite(pte_t pte) return pte; } -static inline int ptep_test_and_clear_dirty(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) -{ - return test_and_clear_bit(_PAGE_BIT_DIRTY, ptep); -} - static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) { return test_and_clear_bit(_PAGE_BIT_ACCESSED, ptep); @@ -348,7 +343,6 @@ static inline void pmd_set(pmd_t * pmdp, pte_t * ptep) remap_pfn_range(vma, vaddr, pfn, size, prot) #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY #define __HAVE_ARCH_PTEP_GET_AND_CLEAR #define __HAVE_ARCH_PTEP_SET_WRPROTECT #define __HAVE_ARCH_PTE_SAME diff --git a/include/asm-parisc/pgtable.h b/include/asm-parisc/pgtable.h index 7e222c8ba73..e88cacd6372 100644 --- a/include/asm-parisc/pgtable.h +++ b/include/asm-parisc/pgtable.h @@ -447,21 +447,6 @@ static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned #endif } -static inline int ptep_test_and_clear_dirty(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) -{ -#ifdef CONFIG_SMP - if (!pte_dirty(*ptep)) - return 0; - return test_and_clear_bit(xlate_pabit(_PAGE_DIRTY_BIT), &pte_val(*ptep)); -#else - pte_t pte = *ptep; - if (!pte_dirty(pte)) - return 0; - set_pte_at(vma->vm_mm, addr, ptep, pte_mkclean(pte)); - return 1; -#endif -} - extern spinlock_t pa_dbit_lock; struct mm_struct; @@ -529,7 +514,6 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, #define HAVE_ARCH_UNMAPPED_AREA #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY #define __HAVE_ARCH_PTEP_GET_AND_CLEAR #define __HAVE_ARCH_PTEP_SET_WRPROTECT #define __HAVE_ARCH_PTE_SAME diff --git a/include/asm-powerpc/pgtable-ppc32.h b/include/asm-powerpc/pgtable-ppc32.h index 6c236d4d626..86a54a4a8a2 100644 --- a/include/asm-powerpc/pgtable-ppc32.h +++ b/include/asm-powerpc/pgtable-ppc32.h @@ -621,13 +621,6 @@ static inline int __ptep_test_and_clear_young(unsigned int context, unsigned lon #define ptep_test_and_clear_young(__vma, __addr, __ptep) \ __ptep_test_and_clear_young((__vma)->vm_mm->context.id, __addr, __ptep) -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY -static inline int ptep_test_and_clear_dirty(struct vm_area_struct *vma, - unsigned long addr, pte_t *ptep) -{ - return (pte_update(ptep, (_PAGE_DIRTY | _PAGE_HWWRITE), 0) & _PAGE_DIRTY) != 0; -} - #define __HAVE_ARCH_PTEP_GET_AND_CLEAR static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) diff --git a/include/asm-powerpc/pgtable-ppc64.h b/include/asm-powerpc/pgtable-ppc64.h index 7ca8b5c1001..300f9a199bf 100644 --- a/include/asm-powerpc/pgtable-ppc64.h +++ b/include/asm-powerpc/pgtable-ppc64.h @@ -292,29 +292,6 @@ static inline int __ptep_test_and_clear_young(struct mm_struct *mm, __r; \ }) -/* - * On RW/DIRTY bit transitions we can avoid flushing the hpte. For the - * moment we always flush but we need to fix hpte_update and test if the - * optimisation is worth it. - */ -static inline int __ptep_test_and_clear_dirty(struct mm_struct *mm, - unsigned long addr, pte_t *ptep) -{ - unsigned long old; - - if ((pte_val(*ptep) & _PAGE_DIRTY) == 0) - return 0; - old = pte_update(mm, addr, ptep, _PAGE_DIRTY, 0); - return (old & _PAGE_DIRTY) != 0; -} -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY -#define ptep_test_and_clear_dirty(__vma, __addr, __ptep) \ -({ \ - int __r; \ - __r = __ptep_test_and_clear_dirty((__vma)->vm_mm, __addr, __ptep); \ - __r; \ -}) - #define __HAVE_ARCH_PTEP_SET_WRPROTECT static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) @@ -342,14 +319,6 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, __young; \ }) -#define __HAVE_ARCH_PTEP_CLEAR_DIRTY_FLUSH -#define ptep_clear_flush_dirty(__vma, __address, __ptep) \ -({ \ - int __dirty = __ptep_test_and_clear_dirty((__vma)->vm_mm, __address, \ - __ptep); \ - __dirty; \ -}) - #define __HAVE_ARCH_PTEP_GET_AND_CLEAR static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) diff --git a/include/asm-ppc/pgtable.h b/include/asm-ppc/pgtable.h index 18aa776313b..c159315d2c8 100644 --- a/include/asm-ppc/pgtable.h +++ b/include/asm-ppc/pgtable.h @@ -654,13 +654,6 @@ static inline int __ptep_test_and_clear_young(unsigned int context, unsigned lon #define ptep_test_and_clear_young(__vma, __addr, __ptep) \ __ptep_test_and_clear_young((__vma)->vm_mm->context.id, __addr, __ptep) -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY -static inline int ptep_test_and_clear_dirty(struct vm_area_struct *vma, - unsigned long addr, pte_t *ptep) -{ - return (pte_update(ptep, (_PAGE_DIRTY | _PAGE_HWWRITE), 0) & _PAGE_DIRTY) != 0; -} - #define __HAVE_ARCH_PTEP_GET_AND_CLEAR static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h index 1039bf6b657..3208dc6c412 100644 --- a/include/asm-s390/pgtable.h +++ b/include/asm-s390/pgtable.h @@ -669,19 +669,6 @@ ptep_clear_flush_young(struct vm_area_struct *vma, return ptep_test_and_clear_young(vma, address, ptep); } -static inline int ptep_test_and_clear_dirty(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) -{ - return 0; -} - -static inline int -ptep_clear_flush_dirty(struct vm_area_struct *vma, - unsigned long address, pte_t *ptep) -{ - /* No need to flush TLB; bits are in storage key */ - return ptep_test_and_clear_dirty(vma, address, ptep); -} - static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { pte_t pte = *ptep; @@ -939,8 +926,6 @@ extern void memmap_init(unsigned long, int, unsigned long, unsigned long); #define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG #define __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY -#define __HAVE_ARCH_PTEP_CLEAR_DIRTY_FLUSH #define __HAVE_ARCH_PTEP_GET_AND_CLEAR #define __HAVE_ARCH_PTEP_CLEAR_FLUSH #define __HAVE_ARCH_PTEP_SET_WRPROTECT diff --git a/include/asm-x86_64/pgtable.h b/include/asm-x86_64/pgtable.h index 4f169ac6b10..3ba53099297 100644 --- a/include/asm-x86_64/pgtable.h +++ b/include/asm-x86_64/pgtable.h @@ -284,13 +284,6 @@ static inline pte_t pte_clrhuge(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & struct vm_area_struct; -static inline int ptep_test_and_clear_dirty(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) -{ - if (!pte_dirty(*ptep)) - return 0; - return test_and_clear_bit(_PAGE_BIT_DIRTY, &ptep->pte); -} - static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) { if (!pte_young(*ptep)) @@ -427,7 +420,6 @@ extern int kern_addr_valid(unsigned long addr); (((o) & (1UL << (__VIRTUAL_MASK_SHIFT-1))) ? ((o) | (~__VIRTUAL_MASK)) : (o)) #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY #define __HAVE_ARCH_PTEP_GET_AND_CLEAR #define __HAVE_ARCH_PTEP_GET_AND_CLEAR_FULL #define __HAVE_ARCH_PTEP_SET_WRPROTECT diff --git a/include/asm-xtensa/pgtable.h b/include/asm-xtensa/pgtable.h index e9fc512cc24..06850f3b26a 100644 --- a/include/asm-xtensa/pgtable.h +++ b/include/asm-xtensa/pgtable.h @@ -267,17 +267,6 @@ ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, return 1; } -static inline int -ptep_test_and_clear_dirty(struct vm_area_struct *vma, unsigned long addr, - pte_t *ptep) -{ - pte_t pte = *ptep; - if (!pte_dirty(pte)) - return 0; - update_pte(ptep, pte_mkclean(pte)); - return 1; -} - static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { @@ -418,7 +407,6 @@ typedef pte_t *pte_addr_t; #endif /* !defined (__ASSEMBLY__) */ #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY #define __HAVE_ARCH_PTEP_GET_AND_CLEAR #define __HAVE_ARCH_PTEP_SET_WRPROTECT #define __HAVE_ARCH_PTEP_MKDIRTY -- 2.41.0