Messages in this thread Patch in this message | | | Date | Fri, 16 Aug 2019 22:12:02 +0800 | From | Peng Liu <> | Subject | [PATCH] sched/fair: eliminate redundant code in sched_slice() |
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Since sched_slice() is used in high frequency, small change should also make sense.
Signed-off-by: Peng Liu <iwtbavbm@gmail.com> --- kernel/sched/fair.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 1054d2cf6aaa..6ae2a507aac0 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -694,19 +694,16 @@ static u64 sched_slice(struct cfs_rq *cfs_rq, struct sched_entity *se) u64 slice = __sched_period(cfs_rq->nr_running + !se->on_rq); for_each_sched_entity(se) { - struct load_weight *load; struct load_weight lw; cfs_rq = cfs_rq_of(se); - load = &cfs_rq->load; + lw = cfs_rq->load; - if (unlikely(!se->on_rq)) { + if (unlikely(!se->on_rq)) lw = cfs_rq->load; - update_load_add(&lw, se->load.weight); - load = &lw; - } - slice = __calc_delta(slice, se->load.weight, load); + update_load_add(&lw, se->load.weight); + slice = __calc_delta(slice, se->load.weight, &lw); } return slice; } -- 2.17.1
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