On Wed, Dec 11, 2024 at 09:17:28PM GMT, Yafang Shao <laoar.shao@xxxxxxxxx> wrote: > @@ -1286,7 +1286,7 @@ struct psi_trigger *psi_trigger_create(struct psi_group *group, char *buf, > bool privileged; > u32 window_us; > > - if (static_branch_likely(&psi_disabled)) > + if (static_branch_likely(&psi_disabled) || !irqtime_enabled()) > return ERR_PTR(-EOPNOTSUPP); Beware this jumps out for _any_ PSI metric when only irq is disabled. I meant to add a guard to psi_show() (this is psi_trigger_create()). Michal
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