Re: [PATCH v5] x86/sgx: Report RCU-Tasks quiescent state in EPC sanitization loop

[Jarkko Sakkinen <jarkko@kernel.org>]

On Thu, Jul 23, 2026 at 09:57:33AM +0000, Miao, Jun wrote:
> >You should probably also say why cond_resched() does not trigger
> >rescheduling. E.g., put that and delete the first sentence as it tells nothing
> >and is confusing.
> 
> Hi BR, Jarkko,
> 
> How about I place the explanation as a comment above the code at the v6 version ?
> See the description below.
> 
> Warm regards
> Jun Miao

Yeah, that is exactly kind of reminder that would make sense there.

> 
> >> --- a/arch/x86/kernel/cpu/sgx/main.c
> >> +++ b/arch/x86/kernel/cpu/sgx/main.c
> >> -		cond_resched();
> +               /*
> +                * cond_resched() only schedules when TIF_NEED_RESCHED is set.
> +                * During this boot-time loop that condition may not happen for a
> +                * long time, so report an RCU-Tasks quiescent state explicitly.
> +                */
> 
> >> +		cond_resched_tasks_rcu_qs();
> >>  	}
> >>
> >>  	list_splice(&dirty, dirty_page_list);
> >> --
> >> 2.32.0
> >>
> >
> >

BR, Jarkko