[RFC][Patch 17/18] sched: update f_b_q() to use u64 for weighted cpuload

[Nikhil Rao]

Update f_b_q() to use u64 when comparing loads.

Signed-off-by: Nikhil Rao <ncrao@xxxxxxxxxx>
---
 kernel/sched_fair.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 386d832..33c36f1 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -3203,14 +3203,14 @@ find_busiest_queue(struct sched_domain *sd, struct sched_group *group,
 		   const struct cpumask *cpus)
 {
 	struct rq *busiest = NULL, *rq;
-	unsigned long max_load = 0;
+	u64 max_load = 0;
 	int i;
 
 	for_each_cpu(i, sched_group_cpus(group)) {
 		unsigned long power = power_of(i);
 		unsigned long capacity = DIV_ROUND_CLOSEST(power,
 							   SCHED_POWER_SCALE);
-		unsigned long wl;
+		u64 wl;
 
 		if (!capacity)
 			capacity = fix_small_capacity(sd, group);
@@ -3234,7 +3234,7 @@ find_busiest_queue(struct sched_domain *sd, struct sched_group *group,
 		 * the load can be moved away from the cpu that is potentially
 		 * running at a lower capacity.
 		 */
-		wl = (wl * SCHED_POWER_SCALE) / power;
+		wl = div_u64(wl * SCHED_POWER_SCALE, power);
 
 		if (wl > max_load) {
 			max_load = wl;
-- 
1.7.3.1

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