From: Linus Torvalds <torvalds@linux-foundation.org>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Alan Stern <stern@rowland.harvard.edu>,
Zhang Rui <rui.zhang@intel.com>,
LKML <linux-kernel@vger.kernel.org>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
pm list <linux-pm@lists.linux-foundation.org>
Subject: Re: Async suspend-resume patch w/ completions (was: Re: Async suspend-resume patch w/ rwsems)
Date: Sat, 19 Dec 2009 15:46:04 -0800 (PST) [thread overview]
Message-ID: <alpine.LFD.2.00.0912191542570.3712@localhost.localdomain> (raw)
In-Reply-To: <200912200040.18944.rjw@sisk.pl>
On Sun, 20 Dec 2009, Rafael J. Wysocki wrote:
>
> OK, so this means we can just forget about suspending/resuming i8042
> asynchronously, which is a pity, because that gave us some real suspend
> speedup on my test systems.
No. What it means is that you shouldn't try to come up with these idiotic
scenarios just trying to make trouble for yourself, and using it as an
excuse for crap.
I suggest you try to treat the i8042 controller async, and see if it is
problematic. If it isn't, don't do that then. But we actually have no real
reason to believe that it would be problematic, at least on a PC where the
actual logic is on the SB (presumably behind the LPC controller).
Why would it be?
The fact that PnP and ACPI enumerates those devices has exactly _what_ to
do with anything?
Linus
next prev parent reply other threads:[~2009-12-19 23:46 UTC|newest]
Thread overview: 234+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-05 21:16 [GIT PULL] PM updates for 2.6.33 Rafael J. Wysocki
2009-12-05 21:43 ` Linus Torvalds
2009-12-05 21:58 ` Linus Torvalds
2009-12-05 23:55 ` Rafael J. Wysocki
2009-12-06 0:45 ` Arjan van de Ven
2009-12-06 1:26 ` Rafael J. Wysocki
2009-12-06 1:58 ` Arjan van de Ven
2009-12-06 8:39 ` Ingo Molnar
2009-12-06 0:48 ` Linus Torvalds
2009-12-06 1:54 ` Rafael J. Wysocki
2009-12-06 1:57 ` Rafael J. Wysocki
2009-12-06 2:05 ` Linus Torvalds
2009-12-06 2:36 ` Rafael J. Wysocki
2009-12-06 15:23 ` Alan Stern
2009-12-06 19:04 ` [linux-pm] " Victor Lowther
2009-12-07 3:57 ` Zhang Rui
2009-12-07 5:57 ` Linus Torvalds
2009-12-07 6:15 ` Linus Torvalds
2009-12-17 23:28 ` Benjamin Herrenschmidt
2009-12-07 6:37 ` Arjan van de Ven
2009-12-07 15:13 ` Alan Stern
2009-12-07 16:31 ` Linus Torvalds
2009-12-07 16:55 ` Linus Torvalds
2009-12-07 17:52 ` Alan Stern
2009-12-07 18:05 ` Linus Torvalds
2009-12-07 20:37 ` Alan Stern
2009-12-07 20:48 ` Linus Torvalds
2009-12-07 21:32 ` Alan Stern
2009-12-07 21:41 ` Linus Torvalds
2009-12-07 21:47 ` Rafael J. Wysocki
2009-12-07 22:01 ` Alan Stern
2009-12-07 22:06 ` Linus Torvalds
2009-12-07 22:21 ` Alan Stern
2009-12-07 22:26 ` Linus Torvalds
2009-12-07 23:16 ` Alan Stern
2009-12-07 22:02 ` Rafael J. Wysocki
2009-12-07 22:16 ` Linus Torvalds
2009-12-07 23:51 ` Rafael J. Wysocki
2009-12-08 3:27 ` Alan Stern
2009-12-08 12:23 ` Async resume patch (was: Re: [GIT PULL] PM updates for 2.6.33) Rafael J. Wysocki
2009-12-08 12:35 ` Rafael J. Wysocki
2009-12-08 15:35 ` Linus Torvalds
2009-12-08 15:55 ` Alan Stern
2009-12-08 16:42 ` Linus Torvalds
2009-12-08 18:08 ` Alan Stern
2009-12-08 18:41 ` Linus Torvalds
2009-12-08 18:52 ` Linus Torvalds
2009-12-08 19:34 ` Alan Stern
2009-12-08 19:30 ` Alan Stern
2009-12-08 20:48 ` Linus Torvalds
2009-12-08 21:32 ` Alan Stern
2009-12-08 21:52 ` Christian Borntraeger
2009-12-08 22:16 ` Linus Torvalds
2009-12-09 19:06 ` Alan Stern
2009-12-09 21:52 ` Linus Torvalds
2009-12-08 19:44 ` Rafael J. Wysocki
2009-12-08 20:16 ` Alan Stern
2009-12-08 20:30 ` Rafael J. Wysocki
2009-12-08 20:44 ` Alan Stern
2009-12-08 20:52 ` Rafael J. Wysocki
2009-12-08 21:40 ` Alan Stern
2009-12-08 21:48 ` spinlock in completion_done() (was: Re: Async resume patch (was: Re: [GIT PULL] PM updates for 2.6.33)) Rafael J. Wysocki
2009-12-09 9:29 ` Ingo Molnar
2009-12-09 22:37 ` Rafael J. Wysocki
2009-12-10 7:59 ` Ingo Molnar
2009-12-11 4:10 ` Dave Chinner
2009-12-11 7:54 ` Ingo Molnar
2009-12-12 23:07 ` [PATCH] sched: Make wakeup side variants of completion API irq safe (was: Re: spinlock in completion_done()) Rafael J. Wysocki
2009-12-08 22:18 ` Async resume patch (was: Re: [GIT PULL] PM updates for 2.6.33) Linus Torvalds
2009-12-09 2:11 ` Alan Stern
2009-12-08 21:08 ` Linus Torvalds
2009-12-08 21:13 ` Linus Torvalds
2009-12-08 22:07 ` Alan Stern
2009-12-08 22:30 ` Rafael J. Wysocki
2009-12-09 2:23 ` Alan Stern
2009-12-09 21:56 ` Rafael J. Wysocki
2009-12-09 22:27 ` Alan Stern
2009-12-08 22:32 ` Linus Torvalds
2009-12-09 2:35 ` Alan Stern
2009-12-09 2:54 ` Linus Torvalds
2009-12-09 15:24 ` Alan Stern
2009-12-09 15:38 ` Linus Torvalds
2009-12-09 15:57 ` Alan Stern
2009-12-25 17:09 ` Pavel Machek
2009-12-09 13:38 ` Mark Brown
2009-12-09 15:49 ` Alan Stern
2009-12-09 16:02 ` Mark Brown
2009-12-09 16:23 ` Alan Stern
2009-12-09 16:46 ` Mark Brown
2009-12-09 16:57 ` Linus Torvalds
2009-12-09 17:45 ` Mark Brown
2009-12-09 17:57 ` Linus Torvalds
2009-12-09 18:27 ` Mark Brown
2009-12-09 17:10 ` Alan Stern
2009-12-09 17:19 ` Linus Torvalds
2009-12-09 18:08 ` Mark Brown
2009-12-08 21:04 ` Linus Torvalds
2009-12-08 21:40 ` Rafael J. Wysocki
2009-12-08 22:03 ` Rafael J. Wysocki
2009-12-08 22:55 ` Async suspend-resume patch w/ rwsems " Rafael J. Wysocki
2009-12-08 23:24 ` Rafael J. Wysocki
2009-12-09 20:15 ` Alan Stern
2009-12-09 22:18 ` Rafael J. Wysocki
2009-12-09 22:38 ` Alan Stern
2009-12-09 23:18 ` Async suspend-resume patch w/ completions (was: Re: Async suspend-resume patch w/ rwsems) Rafael J. Wysocki
2009-12-10 2:51 ` Linus Torvalds
2009-12-10 19:40 ` Rafael J. Wysocki
2009-12-10 23:30 ` Linus Torvalds
2009-12-11 1:02 ` Rafael J. Wysocki
2009-12-11 1:25 ` Linus Torvalds
2009-12-11 3:42 ` Alan Stern
2009-12-11 22:17 ` Rafael J. Wysocki
2009-12-12 0:38 ` Alan Stern
2009-12-11 22:11 ` Rafael J. Wysocki
2009-12-11 22:31 ` Linus Torvalds
2009-12-11 23:48 ` Rafael J. Wysocki
2009-12-11 23:53 ` Linus Torvalds
2009-12-12 17:48 ` Rafael J. Wysocki
2009-12-12 18:54 ` Linus Torvalds
2009-12-12 22:34 ` Rafael J. Wysocki
2009-12-12 22:40 ` Rafael J. Wysocki
2009-12-14 18:21 ` Linus Torvalds
2009-12-14 22:11 ` Rafael J. Wysocki
2009-12-14 22:41 ` Linus Torvalds
2009-12-14 22:43 ` Linus Torvalds
2009-12-14 23:18 ` Rafael J. Wysocki
2009-12-15 0:10 ` Linus Torvalds
2009-12-15 0:11 ` Linus Torvalds
2009-12-15 11:14 ` Rafael J. Wysocki
2009-12-15 15:31 ` Linus Torvalds
2009-12-15 11:03 ` Rafael J. Wysocki
2009-12-15 15:26 ` Linus Torvalds
2009-12-15 15:55 ` Alan Stern
2009-12-15 16:28 ` Linus Torvalds
2009-12-15 18:57 ` Linus Torvalds
2009-12-15 20:26 ` Alan Stern
2009-12-15 21:26 ` Rafael J. Wysocki
2009-12-15 22:01 ` Alan Stern
2009-12-15 21:54 ` Linus Torvalds
2009-12-15 22:27 ` Alan Stern
2009-12-16 2:11 ` Rafael J. Wysocki
2009-12-16 6:40 ` Dmitry Torokhov
2009-12-18 22:43 ` Rafael J. Wysocki
2009-12-19 19:59 ` Dmitry Torokhov
2009-12-19 21:33 ` Rafael J. Wysocki
2009-12-19 22:29 ` Rafael J. Wysocki
2009-12-19 22:43 ` Dmitry Torokhov
2009-12-19 22:47 ` Dmitry Torokhov
2009-12-19 23:10 ` Rafael J. Wysocki
2009-12-19 23:22 ` Dmitry Torokhov
2009-12-19 23:33 ` Rafael J. Wysocki
2009-12-19 23:23 ` Linus Torvalds
2009-12-19 23:40 ` Rafael J. Wysocki
2009-12-19 23:46 ` Linus Torvalds [this message]
2009-12-19 23:47 ` Linus Torvalds
2009-12-19 23:54 ` Rafael J. Wysocki
2009-12-19 23:53 ` Rafael J. Wysocki
2009-12-20 0:09 ` Linus Torvalds
2009-12-20 0:35 ` Rafael J. Wysocki
2009-12-20 2:41 ` Dmitry Torokhov
2009-12-20 19:25 ` [linux-pm] " Rafael J. Wysocki
2009-12-21 7:39 ` [linux-pm] Async suspend-resume patch w/ completions (was: Re: Async?suspend-resume " Dmitry Torokhov
2009-12-21 11:20 ` Vojtech Pavlik
2009-12-20 2:45 ` Async suspend-resume patch w/ completions (was: Re: Async suspend-resume " Dmitry Torokhov
2009-12-20 3:59 ` Alan Stern
2009-12-20 12:52 ` Rafael J. Wysocki
2009-12-20 17:12 ` Alan Stern
2009-12-20 18:10 ` Rafael J. Wysocki
2009-12-20 19:38 ` Alan Stern
2009-12-20 19:51 ` Rafael J. Wysocki
2009-12-16 15:22 ` Alan Stern
2009-12-16 19:26 ` Rafael J. Wysocki
2009-12-16 15:47 ` Linus Torvalds
2009-12-16 19:27 ` Rafael J. Wysocki
2009-12-16 20:59 ` Linus Torvalds
2009-12-16 21:57 ` Rafael J. Wysocki
2009-12-16 22:11 ` Linus Torvalds
2009-12-16 22:33 ` Rafael J. Wysocki
2009-12-16 23:04 ` Alan Stern
2009-12-16 23:18 ` Rafael J. Wysocki
2009-12-17 1:30 ` Rafael J. Wysocki
2009-12-17 1:49 ` Rafael J. Wysocki
2009-12-17 20:06 ` Alan Stern
2009-12-17 20:36 ` Rafael J. Wysocki
2009-12-18 1:51 ` Rafael J. Wysocki
2009-12-18 17:26 ` Alan Stern
2009-12-19 21:41 ` Rafael J. Wysocki
2009-12-20 3:48 ` Alan Stern
2009-12-20 12:55 ` Rafael J. Wysocki
2009-12-18 23:42 ` Rafael J. Wysocki
2009-12-13 13:08 ` Rafael J. Wysocki
2009-12-13 17:30 ` Alan Stern
2009-12-13 19:02 ` [linux-pm] " Alan Stern
2009-12-12 0:43 ` Alan Stern
2009-12-12 17:35 ` Rafael J. Wysocki
2009-12-10 15:31 ` Alan Stern
2009-12-10 15:45 ` Linus Torvalds
2009-12-10 18:37 ` Alan Stern
2009-12-10 23:51 ` Linus Torvalds
2009-12-10 21:14 ` Rafael J. Wysocki
2009-12-10 22:17 ` Alan Stern
2009-12-10 23:45 ` Rafael J. Wysocki
2009-12-07 15:15 ` [GIT PULL] PM updates for 2.6.33 Rafael J. Wysocki
2009-12-07 16:37 ` Linus Torvalds
2009-12-07 20:47 ` Rafael J. Wysocki
2009-12-07 20:56 ` Linus Torvalds
2009-12-07 5:20 ` Linus Torvalds
2009-12-07 15:42 ` Alan Stern
2009-12-06 19:35 ` Arjan van de Ven
2009-12-06 19:58 ` Linus Torvalds
2009-12-06 20:18 ` Arjan van de Ven
2009-12-06 21:08 ` Linus Torvalds
2009-12-06 22:54 ` Dmitry Torokhov
2009-12-07 0:55 ` Arjan van de Ven
2009-12-07 2:27 ` Dmitry Torokhov
2009-12-07 5:26 ` Arjan van de Ven
2009-12-07 6:00 ` Dmitry Torokhov
2009-12-21 9:01 ` Pavel Machek
2009-12-07 1:18 ` Arjan van de Ven
2009-12-07 2:27 ` Dmitry Torokhov
2009-12-07 5:31 ` Arjan van de Ven
2009-12-07 6:15 ` Dmitry Torokhov
2009-12-07 6:31 ` Arjan van de Ven
2009-12-07 6:32 ` Dmitry Torokhov
2009-12-07 15:17 ` Rafael J. Wysocki
2009-12-06 20:36 ` Alan Stern
2009-12-06 21:17 ` Arjan van de Ven
2009-12-06 21:46 ` Alan Stern
2009-12-06 21:57 ` Arjan van de Ven
2009-12-06 22:04 ` Alan Stern
2009-12-06 0:29 ` Rafael J. Wysocki
2009-12-06 0:52 ` Linus Torvalds
2009-12-06 1:24 ` Rafael J. Wysocki
2009-12-06 1:50 ` Linus Torvalds
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