Commit 7799140b authored by Tejun Heo's avatar Tejun Heo
Browse files

sched_ext: Use update_curr_common() in update_curr_scx() 



update_curr_scx() is open coding runtime updates. Use update_curr_common()
instead and avoid unnecessary deviations.

Signed-off-by: default avatarTejun Heo <tj@kernel.org>
Suggested-by: default avatarPeter Zijlstra <peterz@infradead.org>
Acked-by: default avatarDavid Vernet <void@manifault.com>
parent cd014492

kernel/sched/ext.c

+4 −10
Original line number Diff line number Diff line
@@ -1466,20 +1466,14 @@ static void touch_core_sched_dispatch(struct rq *rq, struct task_struct *p) 
static void update_curr_scx(struct rq *rq)

{

	struct task_struct *curr = rq->curr;

	u64 now = rq_clock_task(rq);

	u64 delta_exec;

	s64 delta_exec;



	if (time_before_eq64(now, curr->se.exec_start))

	delta_exec = update_curr_common(rq);

	if (unlikely(delta_exec <= 0))

		return;



	delta_exec = now - curr->se.exec_start;

	curr->se.exec_start = now;

	curr->se.sum_exec_runtime += delta_exec;

	account_group_exec_runtime(curr, delta_exec);

	cgroup_account_cputime(curr, delta_exec);



	if (curr->scx.slice != SCX_SLICE_INF) {

		curr->scx.slice -= min(curr->scx.slice, delta_exec);

		curr->scx.slice -= min_t(u64, curr->scx.slice, delta_exec);

		if (!curr->scx.slice)

			touch_core_sched(rq, curr);

	}