sched: Wrap the 'cfs_rq->nr_spread_over' field with CONFIG_SCHED_DEBUG

cfs_rq->nr_spread_over is only used when CONFIG_SCHED_DEBUG is set.
So wrap it with CONFIG_SCHED_DEBUG.

Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1304528026.15681.3.camel@localhost.localdomain
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/kernel/sched.c b/kernel/sched.c
index f11a2a5..3d8a1b2 100644 (file)
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -328,7 +328,9 @@ struct cfs_rq {
         */
        struct sched_entity *curr, *next, *last, *skip;
 
+#ifdef CONFIG_SCHED_DEBUG
        unsigned int nr_spread_over;
+#endif
 
 #ifdef CONFIG_FAIR_GROUP_SCHED
        struct rq *rq;  /* cpu runqueue to which this cfs_rq is attached */