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Subject[V2 2/2] sched: update cfs_rq weight earlier in enqueue_entity
Date
Since we are going to calculate cfs_rq's average ratio by
runnable_load_avg/load.weight, if not increase the load.weight prior to
enqueue_entity_load_avg, it may lead to one cfs_rq's avg ratio higher
than 100%.

Adjust the sequence, so that all ratio is kept below 100%.

Signed-off-by: Lei Wen <leiwen@marvell.com>
---
kernel/sched/fair.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 07bd74c..d1eee84 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1788,8 +1788,8 @@ enqueue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags)
* Update run-time statistics of the 'current'.
*/
update_curr(cfs_rq);
- enqueue_entity_load_avg(cfs_rq, se, flags & ENQUEUE_WAKEUP);
account_entity_enqueue(cfs_rq, se);
+ enqueue_entity_load_avg(cfs_rq, se, flags & ENQUEUE_WAKEUP);
update_cfs_shares(cfs_rq);

if (flags & ENQUEUE_WAKEUP) {
--
1.7.10.4


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