From: Martin Schwidefsky <[EMAIL PROTECTED]>

Nobody is using ptep_test_and_clear_dirty and ptep_clear_flush_dirty.
Remove the functions from all architectures.

Signed-off-by: Martin Schwidefsky <[EMAIL PROTECTED]>
---

 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 -urpN linux-2.6/include/asm-frv/pgtable.h 
linux-2.6-patched/include/asm-frv/pgtable.h
--- linux-2.6/include/asm-frv/pgtable.h 2007-07-02 08:45:46.000000000 +0200
+++ linux-2.6-patched/include/asm-frv/pgtable.h 2007-07-03 12:56:49.000000000 
+0200
@@ -394,13 +394,6 @@ static inline pte_t pte_mkdirty(pte_t 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);
@@ -510,7 +503,6 @@ 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 -urpN linux-2.6/include/asm-generic/pgtable.h 
linux-2.6-patched/include/asm-generic/pgtable.h
--- linux-2.6/include/asm-generic/pgtable.h     2007-07-03 12:56:49.000000000 
+0200
+++ linux-2.6-patched/include/asm-generic/pgtable.h     2007-07-03 
12:56:49.000000000 +0200
@@ -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 -urpN linux-2.6/include/asm-i386/pgtable.h 
linux-2.6-patched/include/asm-i386/pgtable.h
--- linux-2.6/include/asm-i386/pgtable.h        2007-07-03 12:56:49.000000000 
+0200
+++ linux-2.6-patched/include/asm-i386/pgtable.h        2007-07-03 
12:56:49.000000000 +0200
@@ -295,17 +295,6 @@ static inline pte_t native_local_ptep_ge
        __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;                                                  \
@@ -317,16 +306,6 @@ static inline pte_t native_local_ptep_ge
        __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 -urpN linux-2.6/include/asm-ia64/pgtable.h 
linux-2.6-patched/include/asm-ia64/pgtable.h
--- linux-2.6/include/asm-ia64/pgtable.h        2007-07-03 12:56:49.000000000 
+0200
+++ linux-2.6-patched/include/asm-ia64/pgtable.h        2007-07-03 
12:56:49.000000000 +0200
@@ -398,22 +398,6 @@ ptep_test_and_clear_young (struct vm_are
 #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)
 {
@@ -593,7 +577,6 @@ extern void lazy_mmu_prot_update (pte_t 
 #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 -urpN linux-2.6/include/asm-m32r/pgtable.h 
linux-2.6-patched/include/asm-m32r/pgtable.h
--- linux-2.6/include/asm-m32r/pgtable.h        2007-05-12 20:16:10.000000000 
+0200
+++ linux-2.6-patched/include/asm-m32r/pgtable.h        2007-07-03 
12:56:49.000000000 +0200
@@ -284,11 +284,6 @@ static inline pte_t pte_mkwrite(pte_t pt
        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);
@@ -382,7 +377,6 @@ static inline void pmd_set(pmd_t * pmdp,
                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 -urpN linux-2.6/include/asm-parisc/pgtable.h 
linux-2.6-patched/include/asm-parisc/pgtable.h
--- linux-2.6/include/asm-parisc/pgtable.h      2007-05-09 09:58:15.000000000 
+0200
+++ linux-2.6-patched/include/asm-parisc/pgtable.h      2007-07-03 
12:56:49.000000000 +0200
@@ -451,21 +451,6 @@ static inline int ptep_test_and_clear_yo
 #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;
@@ -533,7 +518,6 @@ static inline void ptep_set_wrprotect(st
 #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 -urpN linux-2.6/include/asm-powerpc/pgtable-ppc32.h 
linux-2.6-patched/include/asm-powerpc/pgtable-ppc32.h
--- linux-2.6/include/asm-powerpc/pgtable-ppc32.h       2007-06-18 
09:43:22.000000000 +0200
+++ linux-2.6-patched/include/asm-powerpc/pgtable-ppc32.h       2007-07-03 
12:56:49.000000000 +0200
@@ -643,13 +643,6 @@ static inline int __ptep_test_and_clear_
 #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 -urpN linux-2.6/include/asm-powerpc/pgtable-ppc64.h 
linux-2.6-patched/include/asm-powerpc/pgtable-ppc64.h
--- linux-2.6/include/asm-powerpc/pgtable-ppc64.h       2007-06-18 
09:43:22.000000000 +0200
+++ linux-2.6-patched/include/asm-powerpc/pgtable-ppc64.h       2007-07-03 
12:56:49.000000000 +0200
@@ -307,29 +307,6 @@ static inline int __ptep_test_and_clear_
        __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)
@@ -357,14 +334,6 @@ static inline void ptep_set_wrprotect(st
        __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 -urpN linux-2.6/include/asm-ppc/pgtable.h 
linux-2.6-patched/include/asm-ppc/pgtable.h
--- linux-2.6/include/asm-ppc/pgtable.h 2007-06-18 09:43:22.000000000 +0200
+++ linux-2.6-patched/include/asm-ppc/pgtable.h 2007-07-03 12:56:49.000000000 
+0200
@@ -664,13 +664,6 @@ static inline int __ptep_test_and_clear_
 #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 -urpN linux-2.6/include/asm-s390/pgtable.h 
linux-2.6-patched/include/asm-s390/pgtable.h
--- linux-2.6/include/asm-s390/pgtable.h        2007-07-03 12:56:49.000000000 
+0200
+++ linux-2.6-patched/include/asm-s390/pgtable.h        2007-07-03 
12:56:49.000000000 +0200
@@ -677,19 +677,6 @@ ptep_clear_flush_young(struct vm_area_st
        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;
@@ -947,8 +934,6 @@ extern void memmap_init(unsigned long, i
 #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 -urpN linux-2.6/include/asm-x86_64/pgtable.h 
linux-2.6-patched/include/asm-x86_64/pgtable.h
--- linux-2.6/include/asm-x86_64/pgtable.h      2007-06-18 09:43:22.000000000 
+0200
+++ linux-2.6-patched/include/asm-x86_64/pgtable.h      2007-07-03 
12:56:49.000000000 +0200
@@ -290,13 +290,6 @@ static inline pte_t pte_clrhuge(pte_t pt
 
 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))
@@ -433,7 +426,6 @@ extern int kern_addr_valid(unsigned long
    (((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 -urpN linux-2.6/include/asm-xtensa/pgtable.h 
linux-2.6-patched/include/asm-xtensa/pgtable.h
--- linux-2.6/include/asm-xtensa/pgtable.h      2006-12-11 10:25:32.000000000 
+0100
+++ linux-2.6-patched/include/asm-xtensa/pgtable.h      2007-07-03 
12:56:49.000000000 +0200
@@ -270,17 +270,6 @@ ptep_test_and_clear_young(struct vm_area
        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)
 {
@@ -421,7 +410,6 @@ 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

-- 
blue skies,
   Martin.

"Reality continues to ruin my life." - Calvin.

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