commit 30f103167fcf2b08de64f5f37ece6bfff7392290
author Jeremy Fitzhardinge <jeremy@goop.org> Thu Feb 05 11:31:09 2009 -0800
committer Jeremy Fitzhardinge <jeremy@goop.org> Fri Feb 06 12:31:50 2009 -0800
tree 7e99ef357c99e8663b88fc684a20536bcd451e43
parent 3f6cbef1d7f474d16f3a824c6d2910d930778fbd

x86: unify pgd_bad

Impact: cleanup

Unify and demacro pgd_bad.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

arch/x86/include/asm/pgtable.h

diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 0c734e2..ebcb60e 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -574,6 +574,11 @@
 {
 	return (pud_t *)pgd_page_vaddr(*pgd) + pud_index(address);
 }
+
+static inline int pgd_bad(pgd_t pgd)
+{
+	return (pgd_val(pgd) & ~(PTE_PFN_MASK | _PAGE_USER)) != _KERNPG_TABLE;
+}
 #endif	/* PAGETABLE_LEVELS > 3 */
 
 #endif	/* __ASSEMBLY__ */