[PATCH] sched: newidle fix

Allow idle_balance to search an incresingly larger span of cpus to find a
cpu.  Minor change, NODE_SD_INIT gets SD_BALANCE_NEWIDLE flag.  This is
critical for x86_64, where there is only one cpu oer node.  In the current
code, idle_balance for Opteron -never- works.

Signed-off-by: <habanero@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/asm-i386/topology.h

@@ -80,6 +80,7 @@ static inline cpumask_t pcibus_to_cpumask(int bus)
 	.per_cpu_gain		= 100,			\
 	.flags			= SD_LOAD_BALANCE	\
 				| SD_BALANCE_EXEC	\
+				| SD_BALANCE_NEWIDLE	\
 				| SD_WAKE_IDLE		\
 				| SD_WAKE_BALANCE,	\
 	.last_balance		= jiffies,		\

include/asm-ia64/topology.h

@@ -56,6 +56,7 @@ void build_cpu_to_node_map(void);
 	.per_cpu_gain		= 100,			\
 	.flags			= SD_LOAD_BALANCE	\
 				| SD_BALANCE_EXEC	\
+				| SD_BALANCE_NEWIDLE	\
 				| SD_WAKE_IDLE		\
 				| SD_WAKE_BALANCE,	\
 	.last_balance		= jiffies,		\

include/asm-ppc64/topology.h

@@ -51,6 +51,7 @@ static inline int node_to_first_cpu(int node)
 	.per_cpu_gain		= 100,			\
 	.flags			= SD_LOAD_BALANCE	\
 				| SD_BALANCE_EXEC	\
+				| SD_BALANCE_NEWIDLE	\
 				| SD_WAKE_IDLE		\
 				| SD_WAKE_BALANCE,	\
 	.last_balance		= jiffies,		\

include/asm-x86_64/topology.h

@@ -52,6 +52,7 @@ static inline cpumask_t __pcibus_to_cpumask(int bus)
 	.cache_nice_tries	= 1,			\
 	.per_cpu_gain		= 100,			\
 	.flags			= SD_LOAD_BALANCE	\
+				| SD_BALANCE_NEWIDLE	\
 				| SD_BALANCE_EXEC	\
 				| SD_WAKE_IDLE		\
 				| SD_WAKE_BALANCE,	\