x86: fix compat-vdso

[linux-2.6-omap-h63xx.git] / include / asm-x86 / pgtable.h

diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h
index ed932453ef26a3538ce3fd2c7670dfc78c18d9b9..e9f10af50f49482de05a6c46fb8343438e91ef32 100644 (file)
--- a/include/asm-x86/pgtable.h
+++ b/include/asm-x86/pgtable.h
@@ -138,8 +138,13 @@
 #ifdef CONFIG_X86_64
 #define __PAGE_KERNEL_IDENT_LARGE_EXEC __PAGE_KERNEL_LARGE_EXEC
 #else
+/*
+ * For PDE_IDENT_ATTR include USER bit. As the PDE and PTE protection
+ * bits are combined, this will alow user to access the high address mapped
+ * VDSO in the presence of CONFIG_COMPAT_VDSO
+ */
 #define PTE_IDENT_ATTR  0x003          /* PRESENT+RW */
-#define PDE_IDENT_ATTR  0x063          /* PRESENT+RW+DIRTY+ACCESSED */
+#define PDE_IDENT_ATTR  0x067          /* PRESENT+RW+USER+DIRTY+ACCESSED */
 #define PGD_IDENT_ATTR  0x001          /* PRESENT (no other attributes) */
 #endif