From: Oleg Nesterov <oleg@redhat.com>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: "Luis Claudio R. Goncalves" <lgoncalv@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Clark Williams <clrkwllms@kernel.org>,
Steven Rostedt <rostedt@goodmis.org>, Tejun Heo <tj@kernel.org>,
David Vernet <dvernet@meta.com>, Barret Rhoden <brho@google.com>,
Josh Don <joshdon@google.com>, Crystal Wood <crwood@redhat.com>,
linux-kernel@vger.kernel.org, linux-rt-devel@lists.linux.dev,
Juri Lelli <juri.lelli@redhat.com>,
Ben Segall <bsegall@google.com>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Ingo Molnar <mingo@redhat.com>, Mel Gorman <mgorman@suse.de>,
Valentin Schneider <vschneid@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Thomas Gleixner <tglx@linutronix.de>,
Wander Lairson Costa <wander@redhat.com>
Subject: Re: [PATCH v6] sched: do not call __put_task_struct() on rt if pi_blocked_on is set
Date: Mon, 11 Aug 2025 14:19:51 +0200 [thread overview]
Message-ID: <20250811121951.GD5250@redhat.com> (raw)
In-Reply-To: <20250811121607.Z6G889tB@linutronix.de>
On 08/11, Sebastian Andrzej Siewior wrote:
>
> On 2025-08-11 13:06:18 [+0200], Oleg Nesterov wrote:
> > On 08/11, Sebastian Andrzej Siewior wrote:
> > >
> > > On 2025-08-01 12:24:29 [+0200], Oleg Nesterov wrote:
> > > > s/LD_WAIT_SLEEP/LD_WAIT_CONFIG/ needs another discussion even if I am right,
> > > > sorry for the confusion.
> > >
> > > You are correct Oleg. I've been just verifying it and yes: LD_WAIT_SLEEP
> > > suppresses also mutex while the intention is to only suppress
> > > spinlock_t.
> >
> > Good, thanks.
> >
> > > We have four users in tree, based on quick check all four should use
> > > CONFIG, three of them do use SLEEP.
> >
> > Yes. I'll send the simple patch when this patch from Luis is merged.
>
> Okay. Let me cover then the other instances.
I was going to update them all, but feel free to do.
Oleg.
next prev parent reply other threads:[~2025-08-11 12:21 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-07 14:03 [PATCH v6] sched: do not call __put_task_struct() on rt if pi_blocked_on is set Luis Claudio R. Goncalves
2025-07-10 16:19 ` Valentin Schneider
2025-07-14 14:15 ` Sebastian Andrzej Siewior
2025-07-16 10:19 ` [tip: sched/core] sched: Do " tip-bot2 for Luis Claudio R. Goncalves
2025-07-28 20:14 ` [PATCH v6] sched: do " Oleg Nesterov
2025-07-29 7:33 ` Luis Claudio R. Goncalves
2025-07-29 11:47 ` Oleg Nesterov
2025-07-29 12:45 ` Luis Claudio R. Goncalves
2025-07-29 13:09 ` Oleg Nesterov
2025-08-01 10:24 ` Oleg Nesterov
2025-08-01 10:51 ` Luis Claudio R. Goncalves
2025-08-11 10:59 ` Sebastian Andrzej Siewior
2025-08-11 11:06 ` Oleg Nesterov
2025-08-11 12:16 ` Sebastian Andrzej Siewior
2025-08-11 12:19 ` Oleg Nesterov [this message]
2025-08-11 12:27 ` Sebastian Andrzej Siewior
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