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, 0 deletions

diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h
index 75a656e6b3f8..2f3d90807efb 100644
--- a/include/asm-x86/pgtable.h
+++ b/include/asm-x86/pgtable.h
@@ -139,6 +139,7 @@ static inline int pte_young(pte_t pte)		{ return pte_val(pte) & _PAGE_ACCESSED;
 static inline int pte_write(pte_t pte)          { return pte_val(pte) & _PAGE_RW; }
 static inline int pte_file(pte_t pte)           { return pte_val(pte) & _PAGE_FILE; }
 static inline int pte_huge(pte_t pte)           { return pte_val(pte) & _PAGE_PSE; }
+static inline int pte_exec(pte_t pte)           { return !(pte_val(pte) & _PAGE_NX); }
 
 static inline int pmd_large(pmd_t pte) {
         return (pmd_val(pte) & (_PAGE_PSE|_PAGE_PRESENT)) ==