x86, mm: fault.c, remove #ifdef from fault_in_kernel_space()

Impact: cleanup

Removal of an #ifdef in fault_in_kernel_space(), by making
use of the new TASK_SIZE_MAX symbol which is now available
on 32-bit too.

Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/mm/fault.c

@@ -960,11 +960,7 @@ access_error(unsigned long error_code, int write, struct vm_area_struct *vma)
 
 static int fault_in_kernel_space(unsigned long address)
 {
-#ifdef CONFIG_X86_32
-	return address >= TASK_SIZE;
-#else
 	return address >= TASK_SIZE_MAX;
-#endif
 }
 
 /*