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From: Austin Schuh <austin@peloton-tech.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Richard Weinberger <richard.weinberger@gmail.com>,
	Mike Galbraith <umgwanakikbuti@gmail.com>,
	LKML <linux-kernel@vger.kernel.org>,
	rt-users <linux-rt-users@vger.kernel.org>,
	Steven Rostedt <rostedt@goodmis.org>
Subject: Re: Filesystem lockup with CONFIG_PREEMPT_RT
Date: Sat, 5 Jul 2014 21:55:42 -0700	[thread overview]
Message-ID: <CANGgnMYhpEHWzfZd6WytoU_a3WVM9GqP15i+TNtLov=JrHAKEA@mail.gmail.com> (raw)
In-Reply-To: <alpine.DEB.2.10.1407052226300.22031@nanos>

On Sat, Jul 5, 2014 at 1:26 PM, Thomas Gleixner <tglx@linutronix.de> wrote:
> On Mon, 30 Jun 2014, Austin Schuh wrote:
>> I think I might have an answer for my own question, but I would
>> appreciate someone else to double check.  If list_empty erroneously
>> returns that there is work to do when there isn't work to do, we wake
>> up an extra worker which then goes back to sleep.  Not a big loss.  If
>> list_empty erroneously returns that there isn't work to do when there
>> is, this should only be because someone is modifying the work list.
>> When they finish, as far as I can tell, all callers then check to see
>> if a worker needs to be started up, and start one.
>
> Precisely.

A comment there when you put together a polished patch for inclusion
would be awesome.  I'm assuming that you will put the patch together?

  reply	other threads:[~2014-07-06  4:56 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-14  2:29 Filesystem lockup with CONFIG_PREEMPT_RT Austin Schuh
2014-05-14  2:29 ` Austin Schuh
2014-05-21  6:23 ` Austin Schuh
2014-05-21  6:23   ` Austin Schuh
2014-05-21  7:33   ` Richard Weinberger
2014-05-21  7:33     ` Richard Weinberger
2014-06-26 19:50     ` Austin Schuh
2014-06-26 22:35       ` Thomas Gleixner
2014-06-27  0:07         ` Austin Schuh
2014-06-27  3:22           ` Mike Galbraith
2014-06-27 12:57           ` Mike Galbraith
2014-06-27 14:01             ` Steven Rostedt
2014-06-27 17:34               ` Mike Galbraith
2014-06-27 17:54                 ` Steven Rostedt
2014-06-27 18:07                   ` Mike Galbraith
2014-06-27 18:19                     ` Steven Rostedt
2014-06-27 19:11                       ` Mike Galbraith
2014-06-28  1:18                       ` Austin Schuh
2014-06-28  3:32                         ` Mike Galbraith
2014-06-28  6:20                           ` Austin Schuh
2014-06-28  7:11                             ` Mike Galbraith
2014-06-27 14:24           ` Thomas Gleixner
2014-06-28  4:51             ` Mike Galbraith
2014-07-01  0:12             ` Austin Schuh
2014-07-01  0:53               ` Austin Schuh
2014-07-05 20:26                 ` Thomas Gleixner
2014-07-06  4:55                   ` Austin Schuh [this message]
2014-07-01  3:01             ` Austin Schuh
2014-07-01 19:32               ` Austin Schuh
2014-07-03 23:08                 ` Austin Schuh
2014-07-04  4:42                   ` Mike Galbraith
2014-05-21 19:30 John Blackwood
2014-05-21 19:30 ` John Blackwood
2014-05-21 21:59 ` Austin Schuh
2014-05-21 21:59   ` Austin Schuh
2014-07-05 20:36 ` Thomas Gleixner
2014-07-05 20:36   ` Thomas Gleixner
2014-07-05 19:30 Jan de Kruyf
2014-07-07  8:48 Jan de Kruyf
2014-07-07 13:00 ` Thomas Gleixner
2014-07-07 16:23 ` Austin Schuh
2014-07-08  8:03   ` Jan de Kruyf
2014-07-08 16:09     ` Austin Schuh

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