Commit 3eb8f022 authored by Cheng-Yang Chou's avatar Cheng-Yang Chou Committed by Tejun Heo
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sched_ext: Fix missing SCX_EV_SUB_BYPASS_DISPATCH aggregation in scx_read_events() 



025b1bd4 introduced SCX_EV_SUB_BYPASS_DISPATCH to track scheduling
of bypassed descendant tasks, and correctly increments it per-CPU and
displays it in sysfs and dump output. However, scx_read_events() which
aggregates per-CPU counters into a summary was not updated to include
this event, causing it to always read as zero in sysfs, in debug dumps,
and via the scx_bpf_events() kfunc.

Add the missing scx_agg_event() call for SCX_EV_SUB_BYPASS_DISPATCH.

Fixes: 025b1bd4 ("sched_ext: Implement hierarchical bypass mode")
Signed-off-by: default avatarCheng-Yang Chou <yphbchou0911@gmail.com>
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent 3d637919

kernel/sched/ext.c

+1 −0
Original line number Diff line number Diff line
@@ -9409,6 +9409,7 @@ static void scx_read_events(struct scx_sched *sch, struct scx_event_stats *event 
		scx_agg_event(events, e_cpu, SCX_EV_BYPASS_DISPATCH);

		scx_agg_event(events, e_cpu, SCX_EV_BYPASS_ACTIVATE);

		scx_agg_event(events, e_cpu, SCX_EV_INSERT_NOT_OWNED);

		scx_agg_event(events, e_cpu, SCX_EV_SUB_BYPASS_DISPATCH);

	}

}