[PATCH] i386: pte simplify ops

[net-next-2.6.git] / include / asm-i386 / pgtable-2level.h

diff --git a/include/asm-i386/pgtable-2level.h b/include/asm-i386/pgtable-2level.h
index 2756d4b04c274a147363762ba0e96eb9bef64ae7..a50fd1773de8fa3b6312472c5a1f75211fe03124 100644 (file)
--- a/include/asm-i386/pgtable-2level.h
+++ b/include/asm-i386/pgtable-2level.h
@@ -1,8 +1,6 @@
 #ifndef _I386_PGTABLE_2LEVEL_H
 #define _I386_PGTABLE_2LEVEL_H
 
-#include <asm-generic/pgtable-nopmd.h>
-
 #define pte_ERROR(e) \
        printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, (e).pte_low)
 #define pgd_ERROR(e) \
@@ -13,19 +11,48 @@
  * within a page table are directly modified.  Thus, the following
  * hook is made available.
  */
-#define set_pte(pteptr, pteval) (*(pteptr) = pteval)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+static inline void native_set_pte(pte_t *ptep , pte_t pte)
+{
+       *ptep = pte;
+}
+static inline void native_set_pte_at(struct mm_struct *mm, unsigned long addr,
+                                    pte_t *ptep , pte_t pte)
+{
+       native_set_pte(ptep, pte);
+}
+static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
+{
+       *pmdp = pmd;
+}
+#ifndef CONFIG_PARAVIRT
+#define set_pte(pteptr, pteval)                native_set_pte(pteptr, pteval)
+#define set_pte_at(mm,addr,ptep,pteval) native_set_pte_at(mm, addr, ptep, pteval)
+#define set_pmd(pmdptr, pmdval)                native_set_pmd(pmdptr, pmdval)
+#endif
+
 #define set_pte_atomic(pteptr, pteval) set_pte(pteptr,pteval)
-#define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval))
+#define set_pte_present(mm,addr,ptep,pteval) set_pte_at(mm,addr,ptep,pteval)
 
 #define pte_clear(mm,addr,xp)  do { set_pte_at(mm, addr, xp, __pte(0)); } while (0)
 #define pmd_clear(xp)  do { set_pmd(xp, __pmd(0)); } while (0)
 
-#define ptep_get_and_clear(mm,addr,xp) __pte(xchg(&(xp)->pte_low, 0))
-#define pte_same(a, b)         ((a).pte_low == (b).pte_low)
+static inline void native_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *xp)
+{
+       *xp = __pte(0);
+}
+
+#ifdef CONFIG_SMP
+static inline pte_t native_ptep_get_and_clear(pte_t *xp)
+{
+       return __pte(xchg(&xp->pte_low, 0));
+}
+#else
+#define native_ptep_get_and_clear(xp) native_local_ptep_get_and_clear(xp)
+#endif
+
 #define pte_page(x)            pfn_to_page(pte_pfn(x))
 #define pte_none(x)            (!(x).pte_low)
-#define pte_pfn(x)             ((unsigned long)(((x).pte_low >> PAGE_SHIFT)))
+#define pte_pfn(x)             (pte_val(x) >> PAGE_SHIFT)
 #define pfn_pte(pfn, prot)     __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
 #define pfn_pmd(pfn, prot)     __pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
 
@@ -64,6 +91,4 @@ static inline int pte_exec_kernel(pte_t pte)
 #define __pte_to_swp_entry(pte)                ((swp_entry_t) { (pte).pte_low })
 #define __swp_entry_to_pte(x)          ((pte_t) { (x).val })
 
-void vmalloc_sync_all(void);
-
 #endif /* _I386_PGTABLE_2LEVEL_H */