From: Linus Torvalds <torvalds@linux-foundation.org>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Alan Stern <stern@rowland.harvard.edu>,
pm list <linux-pm@lists.linux-foundation.org>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>
Subject: Re: [RFC] Asynchronous suspend/resume - test results
Date: Mon, 21 Dec 2009 15:00:56 -0800 (PST) [thread overview]
Message-ID: <alpine.LFD.2.00.0912211456320.21722@localhost.localdomain> (raw)
In-Reply-To: <200912212136.12665.rjw@sisk.pl>
On Mon, 21 Dec 2009, Rafael J. Wysocki wrote:
>
> Do you think it's a good idea to mark all SCSI devices as async? Well, for
> testing it probably is, but I doubt in general.
As long as things aren't multi-path, or multi-lun, it's probably fine.
With multi-path (ie same disk reachable multiple ways), it's probably fine
too, but let's face it, who the hell knows? But it's not going to be an
issue for laptops and normal desktops.
For multi-lun, I suspect the luns are related, and there might be some
ordering issues. But it's _likely_ all fine there too.
The nice thing about systems with wires (ie USB, SCSI, SATA) is that it's
really hard to make different devices have odd dependencies on each other.
The wires tend to _be_ the topology.
Linus
next prev parent reply other threads:[~2009-12-21 23:01 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-21 0:40 [RFC] Asynchronous suspend/resume - test results Rafael J. Wysocki
2009-12-21 7:25 ` [linux-pm] " Nigel Cunningham
2009-12-21 7:35 ` Dmitry Torokhov
2009-12-21 19:58 ` Maxim Levitsky
2009-12-21 20:04 ` Nigel Cunningham
2009-12-23 20:46 ` Rafael J. Wysocki
2009-12-24 2:32 ` Nigel Cunningham
2009-12-24 22:10 ` [linux-pm] " Rafael J. Wysocki
2009-12-25 20:57 ` Nigel Cunningham
2009-12-26 21:33 ` Rafael J. Wysocki
2009-12-26 22:03 ` Nigel Cunningham
2009-12-27 14:20 ` Rafael J. Wysocki
2009-12-21 20:10 ` Alan Stern
2009-12-21 20:36 ` Rafael J. Wysocki
2009-12-21 20:54 ` Alan Stern
2009-12-21 23:00 ` Linus Torvalds [this message]
2009-12-23 20:35 ` Rafael J. Wysocki
2010-01-02 21:28 ` [Update] " Rafael J. Wysocki
2010-01-04 17:17 ` Jesse Barnes
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