linux-kernel - Re: [RESEND PATCH v4 1/1] psi: stop relying on timer_pending for poll

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:   Fri, 21 Oct 2022 21:03:34 -0700
From:   Suren Baghdasaryan <surenb@...gle.com>
To:     Hillf Danton <hdanton@...a.com>
Cc:     peterz@...radead.org, hannes@...xchg.org,
        linux-kernel@...r.kernel.org
Subject: Re: [RESEND PATCH v4 1/1] psi: stop relying on timer_pending for
 poll_work rescheduling

On Fri, Oct 21, 2022 at 8:52 PM Hillf Danton <hdanton@...a.com> wrote:
>
> On 21 Oct 2022 12:54:16 -0700 Suren Baghdasaryan <surenb@...gle.com>
> > psi_poll_worker runs at a low FIFO priority to prevent normal tasks
> > from preempting PSI signal generation (see sched_set_fifo_low() call
> > inside psi_poll_worker()), so schedule_delayed_work() would not be
> > usable as is I think, since it uses normal priority system_wq.
>
> I missed FIFO and sorry for my noise.

No issues at all. I appreciate your input!

>
> Hillf