[PATCH 3/3] sched: terminate newidle balancing once at least one task has moved over

[Gregory Haskins <ghaskins@novell.com>]

Inspired by Peter Zijlstra.

Signed-off-by: Gregory Haskins <ghaskins@novell.com>
---

 kernel/sched.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index 3efbbc5..c8e8520 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -2775,6 +2775,10 @@ static int move_tasks(struct rq *this_rq, int this_cpu, struct rq *busiest,
 				max_load_move - total_load_moved,
 				sd, idle, all_pinned, &this_best_prio);
 		class = class->next;
+
+		if (idle == CPU_NEWLY_IDLE && this_rq->nr_running)
+			break;
+
 	} while (class && max_load_move > total_load_moved);
 
 	return total_load_moved > 0;