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Subject[PATCH v3 3/3] sched/fair: Simplify update_curr()
Date
Use update_current_exec_runtime() simplify update_curr().

Signed-off-by: Yajun Deng <yajun.deng@linux.dev>
---
v3: New patch.
---
kernel/sched/fair.c | 13 +++----------
1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 2048138ce54b..ffc000e49db5 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1135,6 +1135,7 @@ static void update_tg_load_avg(struct cfs_rq *cfs_rq)
static void update_curr(struct cfs_rq *cfs_rq)
{
struct sched_entity *curr = cfs_rq->curr;
+ struct task_struct *curtask = rq_of(cfs_rq)->curr;
u64 now = rq_clock_task(rq_of(cfs_rq));
u64 delta_exec;

@@ -1145,8 +1146,6 @@ static void update_curr(struct cfs_rq *cfs_rq)
if (unlikely((s64)delta_exec <= 0))
return;

- curr->exec_start = now;
-
if (schedstat_enabled()) {
struct sched_statistics *stats;

@@ -1155,20 +1154,14 @@ static void update_curr(struct cfs_rq *cfs_rq)
max(delta_exec, stats->exec_max));
}

- curr->sum_exec_runtime += delta_exec;
schedstat_add(cfs_rq->exec_clock, delta_exec);

curr->vruntime += calc_delta_fair(delta_exec, curr);
update_deadline(cfs_rq, curr);
update_min_vruntime(cfs_rq);

- if (entity_is_task(curr)) {
- struct task_struct *curtask = task_of(curr);
-
- trace_sched_stat_runtime(curtask, delta_exec, curr->vruntime);
- cgroup_account_cputime(curtask, delta_exec);
- account_group_exec_runtime(curtask, delta_exec);
- }
+ update_current_exec_runtime(curtask, now, delta_exec,
+ entity_is_task(curr));

account_cfs_rq_runtime(cfs_rq, delta_exec);
}
--
2.25.1
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