ZONE_PADDING wastes 4 bytes of the new cacheline

[Andrea Arcangeli]

I don't see why this 'int x' exists, alignment should really work fine
even with empty structure (works with my compiler with an userspace
test, please double check).

Index: linux-2.5/include/linux/mmzone.h
===================================================================
RCS file: /home/andrea/crypto/cvs/linux-2.5/include/linux/mmzone.h,v
retrieving revision 1.67
diff -u -p -r1.67 mmzone.h
--- linux-2.5/include/linux/mmzone.h	19 Oct 2004 14:58:00 -0000	1.67
+++ linux-2.5/include/linux/mmzone.h	21 Oct 2004 01:14:20 -0000
@@ -35,7 +35,6 @@ struct pglist_data;
  */
 #if defined(CONFIG_SMP)
 struct zone_padding {
-	int x;
 } ____cacheline_maxaligned_in_smp;
 #define ZONE_PADDING(name)	struct zone_padding name;
 #else
-
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