From: Tejun Heo <tj@kernel.org>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
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 08:35:39 +0200 [thread overview]
Message-ID: <4BF629BB.9000805@kernel.org> (raw)
In-Reply-To: <201005210027.31910.rjw@sisk.pl>
Hello,
On 05/21/2010 12:27 AM, Rafael J. Wysocki wrote:
>> 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?
cmwq itself is quite intrusive changes but w/ cmwq it just takes
flipping a flag when creating the queue.
Thanks.
--
tejun
next prev parent reply other threads:[~2010-05-21 6:36 UTC|newest]
Thread overview: 76+ 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 ` [PATCH 2/8] PM: suspend_block: Add driver to access suspend blockers from user-space 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 ` [PATCH 4/8] PM: suspend_block: Add debugfs file Arve Hjønnevåg
2010-04-28 4:31 ` [PATCH 5/8] PM: suspend_block: Add suspend_blocker stats Arve Hjønnevåg
2010-04-28 4:31 ` [PATCH 6/8] PM: Add suspend blocking work 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 ` [PATCH 8/8] power_supply: Block suspend while power supply change notifications are pending Arve Hjønnevåg
2010-04-28 6:06 ` [PATCH 6/8] PM: Add suspend blocking work Pavel Machek
2010-04-28 6:44 ` Tejun Heo
2010-04-28 7:02 ` Arve Hjønnevåg
2010-04-28 7:18 ` Tejun Heo
2010-04-28 19:40 ` Oleg Nesterov
2010-04-28 20:22 ` Tejun Heo
2010-04-28 21:08 ` Rafael J. Wysocki
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 19:45 ` [PATCH 1/2] workqueues: flush_delayed_work: keep the original workqueue for re-queueing Oleg Nesterov
2010-04-30 5:15 ` Tejun Heo
2010-04-29 19:45 ` [PATCH 2/2] workqueues: export keventd_wq Oleg Nesterov
2010-04-30 5:16 ` Tejun Heo
2010-04-30 5:39 ` Arve Hjønnevåg
2010-04-30 5:52 ` Tejun Heo
2010-04-30 18:05 ` Oleg Nesterov
2010-04-30 18:11 ` Tejun Heo
2010-04-29 21:08 ` [PATCH 6/8] PM: Add suspend blocking work Rafael J. Wysocki
2010-04-28 21:09 ` Rafael J. Wysocki
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
2010-04-28 5:07 ` [PATCH 3/8] PM: suspend_block: Abort task freezing if a suspend_blocker is active 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 22:31 ` Arve Hjønnevåg
2010-04-28 23:05 ` Rafael J. Wysocki
2010-04-28 23:38 ` Arve Hjønnevåg
2010-04-29 21:11 ` Rafael J. Wysocki
2010-04-29 23:41 ` Arve Hjønnevåg
2010-04-28 6:07 ` [PATCH 1/8] PM: Add suspend block api Pavel Machek
2010-04-28 19:13 ` Alan Stern
2010-04-28 21:13 ` Rafael J. Wysocki
2010-04-28 23:35 ` Arve Hjønnevåg
2010-04-29 15:41 ` Alan Stern
2010-04-29 23:39 ` Arve Hjønnevåg
2010-04-30 14:41 ` Alan Stern
2010-04-28 20:50 ` Rafael J. Wysocki
2010-04-29 3:37 ` Arve Hjønnevåg
2010-04-29 21:16 ` Rafael J. Wysocki
2010-04-30 4:24 ` Tejun Heo
2010-04-30 17:26 ` Oleg Nesterov
2010-05-20 8:30 ` Tejun Heo
2010-05-20 22:27 ` Rafael J. Wysocki
2010-05-21 6:35 ` Tejun Heo [this message]
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 23:48 ` Arve Hjønnevåg
2010-05-07 14:22 ` 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
2010-05-03 19:01 ` Pavel Machek
2010-05-03 21:38 ` Rafael J. Wysocki
2010-05-03 22:11 ` Alan Stern
2010-05-03 22:24 ` Arve Hjønnevåg
2010-05-02 7:01 ` Pavel Machek
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
2010-05-18 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
2010-05-21 6:04 ` Florian Mickler
2010-05-27 15:41 ` Pavel Machek
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