[PATCH] ppc64: reduce paca[] where possible

On UP builds we include lots of spare pacas.  Lets get rid of them and save
some space.  Also catch the small SMP case.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/ppc64/kernel/pacaData.c

@@ -78,13 +78,16 @@ struct paca_struct paca[] = {
 #else
 	PACAINITDATA( 0, 1, NULL, STAB0_PHYS_ADDR, STAB0_VIRT_ADDR),
 #endif
+#if NR_CPUS > 1
 	PACAINITDATA( 1, 0, NULL, 0, 0),
 	PACAINITDATA( 2, 0, NULL, 0, 0),
 	PACAINITDATA( 3, 0, NULL, 0, 0),
+#if NR_CPUS > 4
 	PACAINITDATA( 4, 0, NULL, 0, 0),
 	PACAINITDATA( 5, 0, NULL, 0, 0),
 	PACAINITDATA( 6, 0, NULL, 0, 0),
 	PACAINITDATA( 7, 0, NULL, 0, 0),
+#if NR_CPUS > 8
 	PACAINITDATA( 8, 0, NULL, 0, 0),
 	PACAINITDATA( 9, 0, NULL, 0, 0),
 	PACAINITDATA(10, 0, NULL, 0, 0),
@@ -209,4 +212,7 @@ struct paca_struct paca[] = {
 	PACAINITDATA(127, 0, NULL, 0, 0),
 #endif
 #endif
+#endif
+#endif
+#endif
 };