[PATCH] i386: pte clear optimization

[powerpc.git] / include / asm-i386 / pgtable-2level.h

diff --git a/include/asm-i386/pgtable-2level.h b/include/asm-i386/pgtable-2level.h
index 781fe4b..85d9005 100644 (file)
--- a/include/asm-i386/pgtable-2level.h
+++ b/include/asm-i386/pgtable-2level.h
@@ -36,6 +36,11 @@ static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
 #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)
 
+static inline void native_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *xp)
+{
+       *xp = __pte(0);
+}
+
 static inline pte_t native_ptep_get_and_clear(pte_t *xp)
 {
        return __pte(xchg(&xp->pte_low, 0));