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[Xen-changelog] Merged.



# HG changeset patch
# User emellor@ewan
# Node ID 7b33b5e94cec59cc71f904717d2cde337612cdad
# Parent  b7d11c9b6be41a5303a3ca314d2499baff13ddd8
Merged.

diff -r b7d11c9b6be4 -r 7b33b5e94cec 
linux-2.6-xen-sparse/include/asm-generic/pgtable.h
--- a/linux-2.6-xen-sparse/include/asm-generic/pgtable.h        Tue Oct  4 
10:30:51 2005
+++ /dev/null   Tue Oct  4 10:31:31 2005
@@ -1,221 +0,0 @@
-#ifndef _ASM_GENERIC_PGTABLE_H
-#define _ASM_GENERIC_PGTABLE_H
-
-#ifndef __HAVE_ARCH_PTEP_ESTABLISH
-/*
- * Establish a new mapping:
- *  - flush the old one
- *  - update the page tables
- *  - inform the TLB about the new one
- *
- * We hold the mm semaphore for reading and vma->vm_mm->page_table_lock.
- *
- * Note: the old pte is known to not be writable, so we don't need to
- * worry about dirty bits etc getting lost.
- */
-#ifndef __HAVE_ARCH_SET_PTE_ATOMIC
-#define ptep_establish(__vma, __address, __ptep, __entry)              \
-do {                                                                   \
-       set_pte_at((__vma)->vm_mm, (__address), __ptep, __entry);       \
-       flush_tlb_page(__vma, __address);                               \
-} while (0)
-#else /* __HAVE_ARCH_SET_PTE_ATOMIC */
-#define ptep_establish(__vma, __address, __ptep, __entry)              \
-do {                                                                   \
-       set_pte_atomic(__ptep, __entry);                                \
-       flush_tlb_page(__vma, __address);                               \
-} while (0)
-#endif /* __HAVE_ARCH_SET_PTE_ATOMIC */
-#endif
-
-#ifndef __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
-/*
- * Largely same as above, but only sets the access flags (dirty,
- * accessed, and writable). Furthermore, we know it always gets set
- * to a "more permissive" setting, which allows most architectures
- * to optimize this.
- */
-#define ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty) \
-do {                                                                     \
-       set_pte_at((__vma)->vm_mm, (__address), __ptep, __entry);         \
-       flush_tlb_page(__vma, __address);                                 \
-} while (0)
-#endif
-
-#ifndef __HAVE_ARCH_PTEP_ESTABLISH_NEW
-/*
- * Establish a mapping where none previously existed
- */
-#define ptep_establish_new(__vma, __address, __ptep, __entry)          \
-do {                                                                   \
-       set_pte(__ptep, __entry);                                       \
-} while (0)
-#endif
-
-#ifndef __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
-#define ptep_test_and_clear_young(__vma, __address, __ptep)            \
-({                                                                     \
-       pte_t __pte = *(__ptep);                                        \
-       int r = 1;                                                      \
-       if (!pte_young(__pte))                                          \
-               r = 0;                                                  \
-       else                                                            \
-               set_pte_at((__vma)->vm_mm, (__address),                 \
-                          (__ptep), pte_mkold(__pte));                 \
-       r;                                                              \
-})
-#endif
-
-#ifndef __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH
-#define ptep_clear_flush_young(__vma, __address, __ptep)               \
-({                                                                     \
-       int __young;                                                    \
-       __young = ptep_test_and_clear_young(__vma, __address, __ptep);  \
-       if (__young)                                                    \
-               flush_tlb_page(__vma, __address);                       \
-       __young;                                                        \
-})
-#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)                    \
-({                                                                     \
-       pte_t __pte = *(__ptep);                                        \
-       pte_clear((__mm), (__address), (__ptep));                       \
-       __pte;                                                          \
-})
-#endif
-
-#ifndef __HAVE_ARCH_PTEP_CLEAR_FLUSH
-#define ptep_clear_flush(__vma, __address, __ptep)                     \
-({                                                                     \
-       pte_t __pte;                                                    \
-       __pte = ptep_get_and_clear((__vma)->vm_mm, __address, __ptep);  \
-       flush_tlb_page(__vma, __address);                               \
-       __pte;                                                          \
-})
-#endif
-
-#ifndef __HAVE_ARCH_PTEP_SET_WRPROTECT
-static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long 
address, pte_t *ptep)
-{
-       pte_t old_pte = *ptep;
-       set_pte_at(mm, address, ptep, pte_wrprotect(old_pte));
-}
-#endif
-
-#ifndef __HAVE_ARCH_PTE_SAME
-#define pte_same(A,B)  (pte_val(A) == pte_val(B))
-#endif
-
-#ifndef __HAVE_ARCH_PAGE_TEST_AND_CLEAR_DIRTY
-#define page_test_and_clear_dirty(page) (0)
-#endif
-
-#ifndef __HAVE_ARCH_PAGE_TEST_AND_CLEAR_YOUNG
-#define page_test_and_clear_young(page) (0)
-#endif
-
-#ifndef __HAVE_ARCH_PGD_OFFSET_GATE
-#define pgd_offset_gate(mm, addr)      pgd_offset(mm, addr)
-#endif
-
-#ifndef __HAVE_ARCH_LAZY_MMU_PROT_UPDATE
-#define lazy_mmu_prot_update(pte)      do { } while (0)
-#endif
-
-/*
- * When walking page tables, get the address of the next boundary,
- * or the end address of the range if that comes earlier.  Although no
- * vma end wraps to 0, rounded up __boundary may wrap to 0 throughout.
- */
-
-#define pgd_addr_end(addr, end)                                                
\
-({     unsigned long __boundary = ((addr) + PGDIR_SIZE) & PGDIR_MASK;  \
-       (__boundary - 1 < (end) - 1)? __boundary: (end);                \
-})
-
-#ifndef pud_addr_end
-#define pud_addr_end(addr, end)                                                
\
-({     unsigned long __boundary = ((addr) + PUD_SIZE) & PUD_MASK;      \
-       (__boundary - 1 < (end) - 1)? __boundary: (end);                \
-})
-#endif
-
-#ifndef pmd_addr_end
-#define pmd_addr_end(addr, end)                                                
\
-({     unsigned long __boundary = ((addr) + PMD_SIZE) & PMD_MASK;      \
-       (__boundary - 1 < (end) - 1)? __boundary: (end);                \
-})
-#endif
-
-#ifndef __ASSEMBLY__
-/*
- * When walking page tables, we usually want to skip any p?d_none entries;
- * and any p?d_bad entries - reporting the error before resetting to none.
- * Do the tests inline, but report and clear the bad entry in mm/memory.c.
- */
-void pgd_clear_bad(pgd_t *);
-void pud_clear_bad(pud_t *);
-void pmd_clear_bad(pmd_t *);
-
-static inline int pgd_none_or_clear_bad(pgd_t *pgd)
-{
-       if (pgd_none(*pgd))
-               return 1;
-       if (unlikely(pgd_bad(*pgd))) {
-               pgd_clear_bad(pgd);
-               return 1;
-       }
-       return 0;
-}
-
-static inline int pud_none_or_clear_bad(pud_t *pud)
-{
-       if (pud_none(*pud))
-               return 1;
-       if (unlikely(pud_bad(*pud))) {
-               pud_clear_bad(pud);
-               return 1;
-       }
-       return 0;
-}
-
-static inline int pmd_none_or_clear_bad(pmd_t *pmd)
-{
-       if (pmd_none(*pmd))
-               return 1;
-       if (unlikely(pmd_bad(*pmd))) {
-               pmd_clear_bad(pmd);
-               return 1;
-       }
-       return 0;
-}
-#endif /* !__ASSEMBLY__ */
-
-#endif /* _ASM_GENERIC_PGTABLE_H */

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