linux-kernel - Re: [RESEND][PATCH v18 6/8] sched: Add an initial sketch of the find_proxy

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

Message-ID: <20250711133003.GH905792@noisy.programming.kicks-ass.net>
Date: Fri, 11 Jul 2025 15:30:03 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: John Stultz <jstultz@...gle.com>
Cc: LKML <linux-kernel@...r.kernel.org>,
	K Prateek Nayak <kprateek.nayak@....com>,
	Joel Fernandes <joelagnelf@...dia.com>,
	Qais Yousef <qyousef@...alina.io>, Ingo Molnar <mingo@...hat.com>,
	Juri Lelli <juri.lelli@...hat.com>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Dietmar Eggemann <dietmar.eggemann@....com>,
	Valentin Schneider <vschneid@...hat.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Ben Segall <bsegall@...gle.com>,
	Zimuzo Ezeozue <zezeozue@...gle.com>, Mel Gorman <mgorman@...e.de>,
	Will Deacon <will@...nel.org>, Waiman Long <longman@...hat.com>,
	Boqun Feng <boqun.feng@...il.com>,
	"Paul E. McKenney" <paulmck@...nel.org>,
	Metin Kaya <Metin.Kaya@....com>,
	Xuewen Yan <xuewen.yan94@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Suleiman Souhlal <suleiman@...gle.com>,
	kuyo chang <kuyo.chang@...iatek.com>, hupu <hupu.gm@...il.com>,
	kernel-team@...roid.com
Subject: Re: [RESEND][PATCH v18 6/8] sched: Add an initial sketch of the
 find_proxy_task() function

On Thu, Jul 10, 2025 at 05:43:36PM -0700, John Stultz wrote:

> > > @@ -6648,6 +6652,89 @@ static bool try_to_block_task(struct rq *rq, struct task_struct *p,
> > >       return true;
> > >  }
> > >
> > > +#ifdef CONFIG_SCHED_PROXY_EXEC
> > > +static inline struct task_struct *proxy_resched_idle(struct rq *rq)
> > > +{
> > > +     put_prev_set_next_task(rq, rq->donor, rq->idle);
> > > +     rq_set_donor(rq, rq->idle);
> > > +     set_tsk_need_resched(rq->idle);
> > > +     return rq->idle;
> > > +}
> >
> > Nothing cares about the return value.
> 
> Well, nothing in this patch, but the last patch in this series I sent
> here uses it.  But if you think it makes the series easier to grok and
> I can drop it here and add the return in that later patch.

I found it in the later patch; I meant to reply here, but promptly
forgot. It can stay here I suppose, no harm done.