cpuset: PF_SPREAD_PAGE and PF_SPREAD_SLAB should be atomic flags

[pandora-kernel.git] / include / linux / compiler-intel.h

diff --git a/include/linux/compiler-intel.h b/include/linux/compiler-intel.h
index d8e636e..1a97cac 100644 (file)
--- a/include/linux/compiler-intel.h
+++ b/include/linux/compiler-intel.h
@@ -15,6 +15,7 @@
  */
 #undef barrier
 #undef RELOC_HIDE
+#undef OPTIMIZER_HIDE_VAR
 
 #define barrier() __memory_barrier()
 
@@ -23,9 +24,13 @@
      __ptr = (unsigned long) (ptr);                            \
     (typeof(ptr)) (__ptr + (off)); })
 
+/* This should act as an optimization barrier on var.
+ * Given that this compiler does not have inline assembly, a compiler barrier
+ * is the best we can do.
+ */
+#define OPTIMIZER_HIDE_VAR(var) barrier()
+
 /* Intel ECC compiler doesn't support __builtin_types_compatible_p() */
 #define __must_be_array(a) 0
 
 #endif
-
-#define uninitialized_var(x) x