[PATCH] Consolidate the asm-ppc*/fcntl.h files into asm-powerpc

[linux-2.6] / include / asm-x86_64 / pgtable.h

diff --git a/include/asm-x86_64/pgtable.h b/include/asm-x86_64/pgtable.h
index a1ada852f00ed416ed972fcae65dd259f6a45e18..5e0f2fdab0d35885f75f1177d54d18b4117808ec 100644 (file)
--- a/include/asm-x86_64/pgtable.h
+++ b/include/asm-x86_64/pgtable.h
@@ -104,6 +104,19 @@ extern inline void pgd_clear (pgd_t * pgd)
 ((unsigned long) __va(pud_val(pud) & PHYSICAL_PAGE_MASK))
 
 #define ptep_get_and_clear(mm,addr,xp) __pte(xchg(&(xp)->pte, 0))
+
+static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm, unsigned long addr, pte_t *ptep, int full)
+{
+       pte_t pte;
+       if (full) {
+               pte = *ptep;
+               *ptep = __pte(0);
+       } else {
+               pte = ptep_get_and_clear(mm, addr, ptep);
+       }
+       return pte;
+}
+
 #define pte_same(a, b)         ((a).pte == (b).pte)
 
 #define PMD_SIZE       (1UL << PMD_SHIFT)
@@ -434,6 +447,7 @@ extern int kern_addr_valid(unsigned long addr);
 #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
 #define __HAVE_ARCH_PTE_SAME
 #include <asm-generic/pgtable.h>