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From: Peter Zijlstra <peterz@infradead.org>
To: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Ingo Molnar <mingo@kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Steven Rostedt <rostedt@goodmis.org>,
	qais.yousef@arm.com, Juri Lelli <juri.lelli@redhat.com>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	bsegall@google.com, mgorman@suse.de
Subject: Re: [PATCH 10/23] sched,mmc: Convert to sched_set_fifo*()
Date: Thu, 23 Apr 2020 10:59:38 +0200	[thread overview]
Message-ID: <20200423085938.GV20713@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <CAPDyKFo+qCZU=snj==4CFRfL9R0KLcG2RMYeFW_BMX=-Mo5rtg@mail.gmail.com>

On Wed, Apr 22, 2020 at 06:59:35PM +0200, Ulf Hansson wrote:
> On Wed, 22 Apr 2020 at 13:29, Peter Zijlstra <peterz@infradead.org> wrote:
> >
> > Because SCHED_FIFO is a broken scheduler model (see previous patches)
> > take away the priority field, the kernel can't possibly make an
> > informed decision.
> >
> > In this case, use fifo_low, because it only cares about being above
> > SCHED_NORMAL. Effectively no change in behaviour.
> >
> > Cc: ulf.hansson@linaro.org
> > Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
> > Reviewed-by: Ingo Molnar <mingo@kernel.org>
> 
> Acked-by: Ulf Hansson <ulf.hansson@linaro.org>

Thanks!

> FYI: I am slowly moving towards removing the entire kthread for the
> sdio_irq_thread(). It shouldn't be too far off to be posted, one or
> two kernel releases or so.

Moving over to regular threaded interrupts? Anyway, cool, if these
series collide it's easy enough to drop this patch on the floor if it
turns out obsolete.

  reply	other threads:[~2020-04-23  8:59 UTC|newest]

Thread overview: 71+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-22 11:27 [PATCH 00/23] sched: Remove FIFO priorities from modules Peter Zijlstra
2020-04-22 11:27 ` [PATCH 01/23] sched: Provide sched_set_fifo() Peter Zijlstra
2020-04-22 13:11   ` Paul E. McKenney
2020-04-22 13:26     ` Peter Zijlstra
2020-04-22 15:50       ` Paul E. McKenney
2020-04-22 16:33         ` Steven Rostedt
2020-04-22 16:40           ` Paul E. McKenney
2020-04-22 16:46             ` Steven Rostedt
2020-04-22 17:45               ` Paul E. McKenney
2020-04-22 15:50   ` Paul E. McKenney
2020-04-27 17:04   ` Qais Yousef
2020-04-22 11:27 ` [PATCH 02/23] sched,bL_switcher: Convert to sched_set_fifo*() Peter Zijlstra
2020-04-22 13:27   ` Nicolas Pitre
2020-04-22 11:27 ` [PATCH 03/23] sched,crypto: " Peter Zijlstra
2020-04-22 13:33   ` Herbert Xu
2020-04-22 11:27 ` [PATCH 04/23] sched,acpi_pad: " Peter Zijlstra
2020-04-22 16:45   ` Dietmar Eggemann
2020-04-23  8:46     ` Peter Zijlstra
2020-04-22 11:27 ` [PATCH 05/23] sched,drbd: " Peter Zijlstra
2020-04-23  8:57   ` Peter Zijlstra
2020-04-22 11:27 ` [PATCH 06/23] sched,psci: " Peter Zijlstra
2020-04-22 11:55   ` Valentin Schneider
2020-04-22 14:06   ` Sudeep Holla
2020-04-27 16:35   ` Qais Yousef
2020-04-27 16:58     ` Valentin Schneider
2020-04-22 11:27 ` [PATCH 07/23] sched,msm: " Peter Zijlstra
2020-04-22 11:27 ` [PATCH 08/23] sched,drm/scheduler: " Peter Zijlstra
2020-04-22 11:27 ` [PATCH 09/23] sched,ivtv: " Peter Zijlstra
2020-04-22 12:53   ` Steven Rostedt
2020-04-22 13:26     ` Peter Zijlstra
2020-04-24  9:58   ` Hans Verkuil
2020-04-22 11:27 ` [PATCH 10/23] sched,mmc: " Peter Zijlstra
2020-04-22 16:59   ` Ulf Hansson
2020-04-23  8:59     ` Peter Zijlstra [this message]
2020-04-23 12:01       ` Ulf Hansson
2020-04-22 11:27 ` [PATCH 11/23] sched,spi: " Peter Zijlstra
2020-04-22 13:56   ` Mark Brown
2020-04-22 14:35     ` Doug Anderson
2020-04-22 15:47       ` Guenter Roeck
2020-04-22 16:41         ` Doug Anderson
2020-04-22 20:16           ` Guenter Roeck
2020-04-22 11:27 ` [PATCH 12/23] sched,powercap: " Peter Zijlstra
2020-04-22 11:27 ` [PATCH 13/23] sched,ion: Convert to sched_set_normal() Peter Zijlstra
2020-04-22 13:21   ` Vincent Guittot
2020-04-22 13:29     ` Peter Zijlstra
2020-04-22 13:36       ` Vincent Guittot
2020-04-22 13:59         ` Peter Zijlstra
2020-04-22 15:09           ` Vincent Guittot
2020-04-22 15:39             ` Peter Zijlstra
2020-04-22 15:52               ` Vincent Guittot
2020-04-22 15:38           ` Juri Lelli
2020-04-22 15:42             ` Peter Zijlstra
2020-04-22 11:27 ` [PATCH 14/23] sched,powerclamp: Convert to sched_set_fifo() Peter Zijlstra
2020-04-22 11:27 ` [PATCH 15/23] sched,serial: " Peter Zijlstra
2020-04-22 11:27 ` [PATCH 16/23] sched,watchdog: " Peter Zijlstra
2020-04-22 12:51   ` Steven Rostedt
2020-04-22 13:24     ` Peter Zijlstra
2020-04-22 11:27 ` [PATCH 17/23] sched,irq: " Peter Zijlstra
2020-04-22 11:39   ` Peter Zijlstra
2020-04-22 11:27 ` [PATCH 18/23] sched,locktorture: " Peter Zijlstra
2020-04-22 15:51   ` Paul E. McKenney
2020-04-22 11:27 ` [PATCH 19/23] sched,rcuperf: Convert to sched_set_fifo_low() Peter Zijlstra
2020-04-22 15:51   ` Paul E. McKenney
2020-04-22 11:27 ` [PATCH 20/23] sched,rcutorture: " Peter Zijlstra
2020-04-22 15:51   ` Paul E. McKenney
2020-04-22 11:27 ` [PATCH 21/23] sched,psi: " Peter Zijlstra
2020-04-22 15:22   ` Johannes Weiner
2020-04-22 11:27 ` [PATCH 22/23] sched: Remove sched_setscheduler*() EXPORTs Peter Zijlstra
2020-04-22 11:27 ` [PATCH 23/23] sched: Remove sched_set_*() return value Peter Zijlstra
2020-04-22 14:25   ` Ingo Molnar
2020-04-22 16:16   ` Paul E. McKenney

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