[IRDA]: IrDA prototype fixes

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

diff --git a/include/asm-i386/pgtable.h b/include/asm-i386/pgtable.h
index d74185a..47bc1ff 100644 (file)
--- a/include/asm-i386/pgtable.h
+++ b/include/asm-i386/pgtable.h
@@ -277,6 +277,21 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
        clear_bit(_PAGE_BIT_RW, &ptep->pte_low);
 }
 
+/*
+ * clone_pgd_range(pgd_t *dst, pgd_t *src, int count);
+ *
+ *  dst - pointer to pgd range anwhere on a pgd page
+ *  src - ""
+ *  count - the number of pgds to copy.
+ *
+ * dst and src can be on the same page, but the range must not overlap,
+ * and must not cross a page boundary.
+ */
+static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count)
+{
+       memcpy(dst, src, count * sizeof(pgd_t));
+}
+
 /*
  * Macro to mark a page protection value as "uncacheable".  On processors which do not support
  * it, this is a no-op.