What is the "current task" in `sched_wakeup` and `sched_switch` context?

[xcy-megvii]

I was studying the runqlat implementation. The code uses the bpf_current_task_under_cgroup() to filter tasks by cgroup. As far as I understand, the "current task" here refers to the waker, i.e. the kernel, not the woken task. Since runqlat aims to measure task delay in the run queue, shouldn't the cgroup filter check the woken task rather than the waker?

bpf-developer-tutorial/src/9-runqlat/runqlat.bpf.c

Line 131 in b8cc834

if (filter_cg && !bpf_current_task_under_cgroup(&cgroup_map, 0))

[yunwei37]

I think you are right, thanks!

it needs some fix.