x86: clean up pte_exec

- Rename it to pte_exec() from pte_exec_kernel(). There is nothing
kernel specific in there.
- Move it into the common file because _PAGE_NX is 0 on !PAE and then
pte_exec() will be always evaluate to true.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/x86/mm/fault_32.c b/arch/x86/mm/fault_32.c
index 41c31968a74c..f7972ae7da07 100644
--- a/arch/x86/mm/fault_32.c
+++ b/arch/x86/mm/fault_32.c
@@ -615,7 +615,7 @@ no_context:
                 if (error_code & PF_INSTR) {
                         pte_t *pte = lookup_address(address);
 
-                        if (pte && pte_present(*pte) && !pte_exec_kernel(*pte))
+                        if (pte && pte_present(*pte) && !pte_exec(*pte))
                                 printk(KERN_CRIT "kernel tried to execute "
                                         "NX-protected page - exploit attempt? "
                                         "(uid: %d)\n", current->uid);