From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Tejun Heo <tj@kernel.org>
Cc: "Oleg Nesterov" <oleg@redhat.com>,
"Arve Hjønnevåg" <arve@android.com>,
linux-pm@lists.linux-foundation.org,
linux-kernel@vger.kernel.org,
"Alan Stern" <stern@rowland.harvard.edu>,
"Len Brown" <len.brown@intel.com>, "Pavel Machek" <pavel@ucw.cz>,
"Randy Dunlap" <rdunlap@xenotime.net>,
"Jesse Barnes" <jbarnes@virtuousgeek.org>,
"Magnus Damm" <damm@igel.co.jp>,
"Nigel Cunningham" <nigel@tuxonice.net>,
"Cornelia Huck" <cornelia.huck@de.ibm.com>,
"Ming Lei" <tom.leiming@gmail.com>,
"Wu Fengguang" <fengguang.wu@intel.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Maxim Levitsky" <maximlevitsky@gmail.com>,
linux-doc@vger.kernel.org
Subject: Re: [PATCH 1/8] PM: Add suspend block api.
Date: Fri, 21 May 2010 00:27:31 +0200 [thread overview]
Message-ID: <201005210027.31910.rjw@sisk.pl> (raw)
In-Reply-To: <4BF4F31D.8070900@kernel.org>
On Thursday 20 May 2010, Tejun Heo wrote:
> Hello,
>
> (sorry about late reply)
>
> On 04/30/2010 07:26 PM, Oleg Nesterov wrote:
> > Currently _cpu_down() can't flush and/or stop the frozen cwq->thread.
> >
> > IIRC this is fixable, but needs the nasty complications. We should
> > thaw + stop the frozen cwq->thread, then move the pending works to
> > another CPU.
>
> Oh, this isn't an issue w/ cmwq. While frozen all new works are
> collected into per-cpu delayed worklist and while frozen trustee in
> charge of the cpu will keep waiting. Once thawed, trustee will
> execute all works including the delayed ones unbound to any cpu.
So, does it require any intrusive changes to make it possible to create
multithread freezable workqueues?
Rafael
next prev parent reply other threads:[~2010-05-20 22:26 UTC|newest]
Thread overview: 259+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-28 4:31 [PATCH 0/9] Suspend block api (version 5) Arve Hjønnevåg
2010-04-28 4:31 ` [PATCH 1/8] PM: Add suspend block api Arve Hjønnevåg
2010-04-28 4:31 ` Arve Hjønnevåg
2010-04-28 4:31 ` [PATCH 2/8] PM: suspend_block: Add driver to access suspend blockers from user-space Arve Hjønnevåg
2010-04-28 4:31 ` Arve Hjønnevåg
2010-04-28 4:31 ` [PATCH 3/8] PM: suspend_block: Abort task freezing if a suspend_blocker is active Arve Hjønnevåg
2010-04-28 4:31 ` Arve Hjønnevåg
2010-04-28 4:31 ` [PATCH 4/8] PM: suspend_block: Add debugfs file Arve Hjønnevåg
2010-04-28 4:31 ` Arve Hjønnevåg
2010-04-28 4:31 ` [PATCH 5/8] PM: suspend_block: Add suspend_blocker stats Arve Hjønnevåg
2010-04-28 4:31 ` Arve Hjønnevåg
2010-04-28 4:31 ` [PATCH 6/8] PM: Add suspend blocking work Arve Hjønnevåg
2010-04-28 4:31 ` Arve Hjønnevåg
2010-04-28 4:31 ` [PATCH 7/8] Input: Block suspend while event queue is not empty Arve Hjønnevåg
2010-04-28 4:31 ` Arve Hjønnevåg
2010-04-28 4:31 ` [PATCH 8/8] power_supply: Block suspend while power supply change notifications are pending Arve Hjønnevåg
2010-04-28 4:31 ` Arve Hjønnevåg
2010-04-28 6:06 ` [PATCH 6/8] PM: Add suspend blocking work Pavel Machek
2010-04-28 6:06 ` Pavel Machek
2010-04-28 6:44 ` Tejun Heo
2010-04-28 6:44 ` Tejun Heo
2010-04-28 7:02 ` Arve Hjønnevåg
2010-04-28 7:02 ` Arve Hjønnevåg
2010-04-28 7:18 ` Tejun Heo
2010-04-28 7:18 ` Tejun Heo
2010-04-28 19:40 ` Oleg Nesterov
2010-04-28 19:40 ` Oleg Nesterov
2010-04-28 20:22 ` Tejun Heo
2010-04-28 20:22 ` Tejun Heo
2010-04-28 21:08 ` Rafael J. Wysocki
2010-04-28 21:08 ` Rafael J. Wysocki
2010-04-29 18:58 ` Oleg Nesterov
2010-04-29 18:58 ` Oleg Nesterov
2010-04-29 19:44 ` [PATCH 0/2] workqueue fixlets (Was: PM: Add suspend blocking work.) Oleg Nesterov
2010-04-29 19:44 ` Oleg Nesterov
2010-04-29 19:45 ` [PATCH 1/2] workqueues: flush_delayed_work: keep the original workqueue for re-queueing Oleg Nesterov
2010-04-29 19:45 ` Oleg Nesterov
2010-04-30 5:15 ` Tejun Heo
2010-04-30 5:15 ` Tejun Heo
2010-04-29 19:45 ` [PATCH 2/2] workqueues: export keventd_wq Oleg Nesterov
2010-04-29 19:45 ` Oleg Nesterov
2010-04-30 5:16 ` Tejun Heo
2010-04-30 5:16 ` Tejun Heo
2010-04-30 5:39 ` Arve Hjønnevåg
2010-04-30 5:39 ` Arve Hjønnevåg
2010-04-30 5:52 ` Tejun Heo
2010-04-30 5:52 ` Tejun Heo
2010-04-30 18:05 ` Oleg Nesterov
2010-04-30 18:05 ` Oleg Nesterov
2010-04-30 18:11 ` Tejun Heo
2010-04-30 18:11 ` Tejun Heo
2010-04-29 21:08 ` [PATCH 6/8] PM: Add suspend blocking work Rafael J. Wysocki
2010-04-29 21:08 ` Rafael J. Wysocki
2010-04-28 21:09 ` Rafael J. Wysocki
2010-04-28 21:09 ` Rafael J. Wysocki
2010-04-28 22:09 ` Arve Hjønnevåg
2010-04-28 22:09 ` Arve Hjønnevåg
2010-04-28 22:19 ` Rafael J. Wysocki
2010-04-29 3:47 ` Arve Hjønnevåg
2010-04-29 21:09 ` Rafael J. Wysocki
2010-04-29 21:09 ` Rafael J. Wysocki
2010-04-29 3:47 ` Arve Hjønnevåg
2010-04-28 22:19 ` Rafael J. Wysocki
2010-04-28 5:07 ` [PATCH 3/8] PM: suspend_block: Abort task freezing if a suspend_blocker is active Pavel Machek
2010-04-28 5:07 ` Pavel Machek
2010-04-28 20:58 ` [PATCH 2/8] PM: suspend_block: Add driver to access suspend blockers from user-space Rafael J. Wysocki
2010-04-28 20:58 ` Rafael J. Wysocki
2010-04-28 22:31 ` Arve Hjønnevåg
2010-04-28 23:05 ` Rafael J. Wysocki
2010-04-28 23:05 ` Rafael J. Wysocki
2010-04-28 23:38 ` Arve Hjønnevåg
2010-04-28 23:38 ` Arve Hjønnevåg
2010-04-29 21:11 ` Rafael J. Wysocki
2010-04-29 21:11 ` Rafael J. Wysocki
2010-04-29 23:41 ` Arve Hjønnevåg
2010-04-29 23:41 ` Arve Hjønnevåg
2010-04-28 22:31 ` Arve Hjønnevåg
2010-04-28 6:07 ` [PATCH 1/8] PM: Add suspend block api Pavel Machek
2010-04-28 6:07 ` Pavel Machek
2010-04-28 19:13 ` Alan Stern
2010-04-28 21:13 ` Rafael J. Wysocki
2010-04-28 21:13 ` Rafael J. Wysocki
2010-04-28 23:35 ` Arve Hjønnevåg
2010-04-28 23:35 ` Arve Hjønnevåg
2010-04-29 15:41 ` Alan Stern
2010-04-29 15:41 ` Alan Stern
2010-04-29 23:39 ` Arve Hjønnevåg
2010-04-29 23:39 ` Arve Hjønnevåg
2010-04-30 14:41 ` Alan Stern
2010-04-30 14:41 ` Alan Stern
2010-04-28 19:13 ` Alan Stern
2010-04-28 20:50 ` Rafael J. Wysocki
2010-04-28 20:50 ` Rafael J. Wysocki
2010-04-29 3:37 ` Arve Hjønnevåg
2010-04-29 21:16 ` Rafael J. Wysocki
2010-04-29 21:16 ` Rafael J. Wysocki
2010-04-30 4:24 ` Tejun Heo
2010-04-30 4:24 ` Tejun Heo
2010-04-30 17:26 ` Oleg Nesterov
2010-05-20 8:30 ` Tejun Heo
2010-05-20 8:30 ` Tejun Heo
2010-05-20 22:27 ` Rafael J. Wysocki [this message]
2010-05-21 6:35 ` Tejun Heo
2010-05-21 6:35 ` Tejun Heo
2010-05-20 22:27 ` Rafael J. Wysocki
2010-04-30 17:26 ` Oleg Nesterov
2010-04-29 3:37 ` Arve Hjønnevåg
2010-05-06 15:18 ` Alan Stern
2010-05-06 15:18 ` Alan Stern
2010-05-06 19:28 ` Rafael J. Wysocki
2010-05-06 19:40 ` Alan Stern
2010-05-06 19:40 ` Alan Stern
2010-05-06 23:48 ` Arve Hjønnevåg
2010-05-07 14:22 ` Alan Stern
2010-05-07 14:22 ` Alan Stern
2010-05-06 23:48 ` Arve Hjønnevåg
2010-05-06 19:28 ` Rafael J. Wysocki
-- strict thread matches above, loose matches on Subject: below --
2010-05-14 4:11 [PATCH 0/8] Suspend block api (version 7) Arve Hjønnevåg
2010-05-14 4:11 ` [PATCH 1/8] PM: Add suspend block api Arve Hjønnevåg
2010-05-14 4:11 ` Arve Hjønnevåg
2010-05-14 6:13 ` Paul Walmsley
2010-05-14 6:27 ` Paul Walmsley
2010-05-14 7:14 ` Arve Hjønnevåg
2010-05-18 2:17 ` Paul Walmsley
2010-05-18 3:06 ` Arve Hjønnevåg
2010-05-18 3:34 ` Paul Walmsley
2010-05-18 3:51 ` Arve Hjønnevåg
2010-05-19 15:55 ` Paul Walmsley
2010-05-20 0:35 ` Arve Hjønnevåg
2010-05-18 13:11 ` Pavel Machek
2010-05-18 13:11 ` Pavel Machek
2010-05-20 9:11 ` Florian Mickler
2010-05-20 9:26 ` Florian Mickler
2010-05-20 22:18 ` Rafael J. Wysocki
2010-05-20 22:18 ` Rafael J. Wysocki
2010-05-21 6:04 ` Florian Mickler
2010-05-21 6:04 ` Florian Mickler
2010-05-27 15:41 ` Pavel Machek
2010-05-27 15:41 ` Pavel Machek
2010-05-20 9:26 ` Florian Mickler
2010-05-20 9:11 ` Florian Mickler
2010-05-05 20:28 [linux-pm] " mark gross
2010-05-05 21:12 ` Alan Stern
2010-05-05 21:37 ` Brian Swetland
2010-05-05 21:37 ` [linux-pm] " Brian Swetland
2010-05-05 23:47 ` Tony Lindgren
2010-05-05 23:47 ` [linux-pm] " Tony Lindgren
2010-05-05 23:56 ` Brian Swetland
2010-05-06 0:05 ` Tony Lindgren
2010-05-06 0:05 ` [linux-pm] " Tony Lindgren
2010-05-06 4:16 ` Arve Hjønnevåg
2010-05-06 4:16 ` [linux-pm] " Arve Hjønnevåg
2010-05-06 17:04 ` Tony Lindgren
2010-05-07 0:10 ` Arve Hjønnevåg
2010-05-07 15:54 ` Tony Lindgren
2010-05-28 6:43 ` [linux-pm] " Pavel Machek
2010-05-28 7:01 ` Arve Hjønnevåg
2010-05-28 6:43 ` Pavel Machek
2010-05-07 0:10 ` Arve Hjønnevåg
2010-05-06 17:04 ` Tony Lindgren
2010-05-05 23:56 ` Brian Swetland
2010-05-06 13:40 ` Matthew Garrett
2010-05-06 13:40 ` [linux-pm] " Matthew Garrett
2010-05-06 17:01 ` Tony Lindgren
2010-05-06 17:01 ` [linux-pm] " Tony Lindgren
2010-05-06 17:09 ` Matthew Garrett
2010-05-06 17:09 ` [linux-pm] " Matthew Garrett
2010-05-06 17:14 ` Tony Lindgren
2010-05-06 17:14 ` [linux-pm] " Tony Lindgren
2010-05-06 17:22 ` Matthew Garrett
2010-05-06 17:22 ` [linux-pm] " Matthew Garrett
2010-05-06 17:38 ` Tony Lindgren
2010-05-06 17:43 ` Matthew Garrett
2010-05-06 17:43 ` [linux-pm] " Matthew Garrett
2010-05-06 18:33 ` Tony Lindgren
2010-05-06 18:44 ` Matthew Garrett
2010-05-06 18:44 ` [linux-pm] " Matthew Garrett
2010-05-07 2:05 ` Tony Lindgren
2010-05-07 17:12 ` Matthew Garrett
2010-05-07 17:35 ` Tony Lindgren
2010-05-07 17:50 ` Matthew Garrett
2010-05-07 17:50 ` [linux-pm] " Matthew Garrett
2010-05-07 18:01 ` Tony Lindgren
2010-05-07 18:28 ` Matthew Garrett
2010-05-07 18:43 ` Tony Lindgren
2010-05-07 18:46 ` Matthew Garrett
2010-05-07 18:46 ` [linux-pm] " Matthew Garrett
2010-05-07 19:06 ` Daniel Walker
2010-05-07 19:06 ` [linux-pm] " Daniel Walker
2010-05-07 19:28 ` Tony Lindgren
2010-05-07 19:33 ` Matthew Garrett
2010-05-07 19:33 ` [linux-pm] " Matthew Garrett
2010-05-07 19:55 ` Tony Lindgren
2010-05-07 20:28 ` Matthew Garrett
2010-05-07 20:28 ` [linux-pm] " Matthew Garrett
2010-05-07 20:53 ` Tony Lindgren
2010-05-07 20:53 ` [linux-pm] " Tony Lindgren
2010-05-07 21:03 ` Matthew Garrett
2010-05-07 21:25 ` Tony Lindgren
2010-05-07 21:25 ` [linux-pm] " Tony Lindgren
2010-05-07 21:32 ` Arve Hjønnevåg
2010-05-07 21:39 ` [linux-pm] " Matthew Garrett
2010-05-07 21:42 ` Tony Lindgren
2010-05-07 21:48 ` Matthew Garrett
2010-05-07 21:48 ` [linux-pm] " Matthew Garrett
2010-05-07 22:00 ` Tony Lindgren
2010-05-07 22:00 ` [linux-pm] " Tony Lindgren
2010-05-07 22:28 ` Matthew Garrett
2010-05-07 21:42 ` Tony Lindgren
2010-05-07 21:39 ` Matthew Garrett
2010-05-07 21:30 ` [linux-pm] " Daniel Walker
2010-05-07 21:35 ` Arve Hjønnevåg
2010-05-07 21:43 ` Daniel Walker
2010-05-07 21:35 ` Arve Hjønnevåg
2010-05-07 21:38 ` Matthew Garrett
2010-05-07 21:30 ` Daniel Walker
2010-05-07 21:03 ` Matthew Garrett
2010-05-07 19:55 ` Tony Lindgren
2010-05-07 19:28 ` Tony Lindgren
2010-05-07 18:28 ` Matthew Garrett
2010-05-07 18:01 ` Tony Lindgren
2010-05-07 17:35 ` Tony Lindgren
2010-05-07 17:12 ` Matthew Garrett
2010-05-07 2:05 ` Tony Lindgren
2010-05-06 18:47 ` Alan Stern
2010-05-06 18:47 ` [linux-pm] " Alan Stern
2010-05-07 2:20 ` Tony Lindgren
2010-05-06 18:33 ` Tony Lindgren
2010-05-28 13:29 ` [linux-pm] " Pavel Machek
2010-05-28 13:42 ` Brian Swetland
2010-05-28 13:29 ` Pavel Machek
2010-05-06 17:38 ` Tony Lindgren
2010-05-06 17:35 ` Daniel Walker
2010-05-06 17:35 ` [linux-pm] " Daniel Walker
2010-05-06 18:36 ` Tony Lindgren
2010-05-06 19:11 ` Daniel Walker
2010-05-07 2:00 ` Tony Lindgren
2010-05-07 2:00 ` [linux-pm] " Tony Lindgren
2010-05-07 17:20 ` Daniel Walker
2010-05-07 17:20 ` [linux-pm] " Daniel Walker
2010-05-07 17:36 ` Matthew Garrett
2010-05-07 17:40 ` Daniel Walker
2010-05-07 17:51 ` Matthew Garrett
2010-05-07 18:00 ` Daniel Walker
2010-05-07 18:17 ` Tony Lindgren
2010-05-07 18:00 ` Daniel Walker
2010-05-07 17:51 ` Matthew Garrett
2010-05-07 17:40 ` Daniel Walker
2010-05-07 17:36 ` Matthew Garrett
2010-05-07 17:50 ` Tony Lindgren
2010-05-06 19:11 ` Daniel Walker
2010-05-06 18:36 ` Tony Lindgren
2010-05-07 3:45 ` mgross
2010-05-07 3:45 ` [linux-pm] " mgross
2010-05-07 4:10 ` Arve Hjønnevåg
2010-05-07 3:45 ` mgross
2010-05-05 21:12 ` Alan Stern
2010-05-04 16:03 [linux-pm] " mark gross
2010-05-04 17:16 ` Alan Stern
2010-05-05 1:50 ` mark gross
2010-05-05 1:50 ` [linux-pm] " mark gross
2010-05-05 13:31 ` Matthew Garrett
2010-05-05 20:09 ` mark gross
2010-05-05 20:09 ` [linux-pm] " mark gross
2010-05-05 20:21 ` Matthew Garrett
2010-05-05 13:31 ` Matthew Garrett
2010-05-05 15:44 ` [linux-pm] " Alan Stern
2010-05-05 20:28 ` mark gross
2010-05-05 15:44 ` Alan Stern
2010-05-04 17:16 ` Alan Stern
2010-04-30 22:36 [PATCH 0/8] Suspend block api (version 6) Arve Hjønnevåg
2010-04-30 22:36 ` [PATCH 1/8] PM: Add suspend block api Arve Hjønnevåg
2010-05-02 6:56 ` Pavel Machek
2010-05-02 20:10 ` Rafael J. Wysocki
2010-05-02 20:52 ` Pavel Machek
2010-05-02 21:29 ` Rafael J. Wysocki
2010-05-02 21:29 ` Rafael J. Wysocki
2010-05-03 19:01 ` Pavel Machek
2010-05-03 21:38 ` Rafael J. Wysocki
2010-05-03 21:38 ` Rafael J. Wysocki
2010-05-03 22:11 ` Alan Stern
2010-05-03 22:11 ` Alan Stern
2010-05-03 22:24 ` Arve Hjønnevåg
2010-05-03 22:24 ` Arve Hjønnevåg
2010-05-03 19:01 ` Pavel Machek
2010-05-02 20:52 ` Pavel Machek
2010-05-02 20:10 ` Rafael J. Wysocki
2010-05-02 6:56 ` Pavel Machek
2010-05-02 7:01 ` Pavel Machek
2010-05-02 7:01 ` Pavel Machek
2010-05-04 5:12 ` mark gross
2010-05-04 5:12 ` [linux-pm] " mark gross
2010-05-04 13:59 ` Alan Stern
2010-05-04 16:03 ` mark gross
2010-05-04 13:59 ` Alan Stern
2010-05-04 20:40 ` Arve Hjønnevåg
2010-05-13 19:01 ` Paul Walmsley
2010-05-14 20:05 ` Paul Walmsley
2010-04-30 22:36 ` Arve Hjønnevåg
2009-04-16 6:00 Sam Shang
2009-04-15 1:41 [RFC][PATCH 0/8] Suspend " Arve Hjønnevåg
2009-04-15 1:41 ` [PATCH 1/8] PM: Add suspend " Arve Hjønnevåg
2009-04-15 15:29 ` Alan Stern
2009-04-15 19:08 ` mark gross
2009-04-16 0:40 ` Arve Hjønnevåg
2009-04-16 0:34 ` Arve Hjønnevåg
2009-04-15 22:31 ` mark gross
2009-04-16 1:45 ` Arve Hjønnevåg
2009-04-16 17:49 ` mark gross
2009-04-20 9:29 ` Pavel Machek
2009-04-21 4:44 ` Arve Hjønnevåg
2009-04-24 20:59 ` Pavel Machek
2009-04-29 21:24 ` Rafael J. Wysocki
2009-04-29 22:52 ` Arve Hjønnevåg
2009-04-29 22:34 ` Rafael J. Wysocki
2009-04-29 23:45 ` Arve Hjønnevåg
2009-04-30 0:49 ` Arve Hjønnevåg
2009-04-26 9:42 ` Pavel Machek
2009-05-02 12:17 ` Rafael J. Wysocki
2009-05-02 12:14 ` Rafael J. Wysocki
2009-05-02 20:51 ` Pavel Machek
2009-05-05 3:48 ` Arve Hjønnevåg
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