On Fri, Nov 08, 2024 at 09:29:03PM GMT, Yafang Shao <laoar.shao@xxxxxxxxx> wrote: > sched_clock_irqtime may be disabled due to the clock source. When disabled, > irq_time_read() won't change over time, so there is nothing to account. We > can save iterating the whole hierarchy on every tick and context switch. > > Signed-off-by: Yafang Shao <laoar.shao@xxxxxxxxx> > Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx> > --- > kernel/sched/psi.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Reviewed-by: Michal Koutný <mkoutny@xxxxxxxx>
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