From: Aaron Lu <aaron.lu@intel.com>
To: Tejun Heo <tj@kernel.org>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
"Rafael J. Wysocki" <rjw@sisk.pl>,
linux-pm@vger.kernel.org, Jeff Garzik <jgarzik@pobox.com>,
Alan Stern <stern@rowland.harvard.edu>, Jeff Wu <jeff.wu@amd.com>,
linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org,
linux-acpi@vger.kernel.org
Subject: Re: [PATCH v9 06/10] ata: zpodd: check zero power ready status
Date: Tue, 18 Dec 2012 16:30:51 +0800 [thread overview]
Message-ID: <50D029BB.7060408@intel.com> (raw)
In-Reply-To: <20121211051027.GB1932@mtj.dyndns.org>
Hi Everyone,
Due to lack of information, I think I'll go ahead and pick up a simple
solution for this(i.e. the code I attached previously to set a flag
event_driven in scsi_device to let sr skip events poll) and send a new
series out for you to review. After all, I can't wait forever...
Please feel free to let me know if you don't think I should send a new
series with the above mentioned solution.
Thanks a lot for your(all of you) kind help and comments.
-Aaron
On 12/11/2012 01:10 PM, Tejun Heo wrote:
> Hello, guys.
>
> On Mon, Dec 10, 2012 at 11:26:07AM +0800, Aaron Lu wrote:
>>>>> The problem here is there's no easy to reach genhd from libata (or the
>>>>> other way around) without going through sr. I think we're gonna have
>>>>> to have something in sr one way or the other.
>>>>
>>>> Can't we do that via an event? It's a bit clunky because we need the
>>>> callback in the layer that sees the sdev, which is libata-scsi, we just
>>>> need an analogue of ata_scsi_media_change_notify, but ignoring and
>>>> allowing polling is essentially event driven as well, so it should all
>>>> work. We'll need a listener in genhd, which might be trickier.
>
> I'm not really following what you mean. Can you please elaborate?
> One way or the other, doesn't the notification have to bubble up
> through SCSI?
>
>> A colleague of mine reminded me that it's impolite to write something
>> like this, and here is my apology. I didn't mean to be rude, I'm sorry
>> for this if it made you feel uncomfortable.
>
> Oh, no, it's not rude at all. I was just being distracted w/ other
> stuff and lazy. Sorry about that.
>
> Thanks.
>
next prev parent reply other threads:[~2012-12-18 8:30 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-09 6:51 [PATCH v9 00/10] ZPODD Patches Aaron Lu
2012-11-09 6:51 ` [PATCH v9 01/10] scsi: sr: support runtime pm Aaron Lu
2012-11-09 6:51 ` [PATCH v9 02/10] ata: zpodd: Add CONFIG_SATA_ZPODD Aaron Lu
2012-11-09 6:51 ` [PATCH v9 03/10] ata: zpodd: identify and init ZPODD devices Aaron Lu
2012-11-12 18:53 ` Tejun Heo
2012-11-14 1:32 ` Aaron Lu
2012-11-18 14:38 ` Tejun Heo
2012-11-19 2:15 ` Aaron Lu
2012-11-09 6:51 ` [PATCH v9 04/10] libata: acpi: move acpi notification code to zpodd Aaron Lu
2012-11-12 18:55 ` Tejun Heo
2012-11-14 1:36 ` Aaron Lu
2012-11-09 6:51 ` [PATCH v9 05/10] libata: separate ATAPI code Aaron Lu
2012-11-12 18:57 ` Tejun Heo
2012-11-13 12:49 ` Aaron Lu
2012-11-18 15:01 ` Tejun Heo
2012-11-19 2:21 ` Aaron Lu
2012-11-19 14:51 ` Tejun Heo
2012-11-09 6:51 ` [PATCH v9 06/10] ata: zpodd: check zero power ready status Aaron Lu
2012-11-12 19:13 ` Tejun Heo
2012-11-13 13:20 ` Aaron Lu
2012-11-14 2:18 ` Aaron Lu
2012-11-18 15:00 ` Tejun Heo
2012-11-19 3:09 ` Aaron Lu
2012-11-19 14:56 ` Tejun Heo
2012-11-19 15:06 ` James Bottomley
2012-11-26 0:33 ` Rafael J. Wysocki
2012-11-26 0:45 ` Aaron Lu
2012-11-26 5:03 ` James Bottomley
2012-11-26 5:09 ` Aaron Lu
2012-11-26 7:32 ` James Bottomley
2012-11-26 8:27 ` Aaron Lu
2012-11-26 13:17 ` James Bottomley
2012-11-26 16:21 ` Alan Stern
2012-11-26 19:15 ` James Bottomley
2012-11-27 1:41 ` Aaron Lu
2012-11-28 0:51 ` Rafael J. Wysocki
2012-11-28 1:39 ` Tejun Heo
2012-11-28 2:24 ` Aaron Lu
2012-11-28 8:56 ` James Bottomley
2012-12-03 8:13 ` Aaron Lu
2012-12-03 8:25 ` James Bottomley
2012-12-03 8:59 ` Aaron Lu
2012-12-03 16:23 ` Tejun Heo
2012-12-03 18:56 ` Jeff Garzik
2012-12-04 5:04 ` Aaron Lu
2012-12-04 12:11 ` James Bottomley
2012-12-07 6:13 ` Aaron Lu
2012-12-10 3:26 ` Aaron Lu
2012-12-11 5:10 ` Tejun Heo
2012-12-18 8:30 ` Aaron Lu [this message]
2012-12-20 6:07 ` Aaron Lu
2012-12-25 17:17 ` Tejun Heo
2012-12-26 1:42 ` Aaron Lu
2012-12-28 21:16 ` Tejun Heo
2013-01-04 1:04 ` Aaron Lu
2012-11-30 8:55 ` Aaron Lu
2012-11-30 11:15 ` Rafael J. Wysocki
2012-11-20 6:00 ` Aaron Lu
2012-11-20 8:59 ` Aaron Lu
2012-11-26 0:50 ` Rafael J. Wysocki
2012-11-26 0:48 ` Aaron Lu
2012-11-26 1:03 ` Rafael J. Wysocki
2012-11-26 1:05 ` Aaron Lu
2012-11-26 1:11 ` Rafael J. Wysocki
2012-11-26 1:09 ` Aaron Lu
2012-11-26 1:22 ` Rafael J. Wysocki
2012-11-26 1:22 ` Aaron Lu
2012-11-26 1:17 ` Aaron Lu
2012-11-09 6:51 ` [PATCH v9 07/10] block: add a new interface to block events Aaron Lu
2012-11-12 19:14 ` Tejun Heo
2012-11-12 19:18 ` Alan Stern
2012-11-12 19:21 ` Tejun Heo
2012-11-12 19:34 ` Alan Stern
2012-11-18 15:05 ` Tejun Heo
2012-11-18 17:41 ` Alan Stern
2012-11-18 21:56 ` Tejun Heo
2012-11-18 21:58 ` Tejun Heo
2012-11-18 23:28 ` Alan Stern
2012-11-18 23:35 ` Tejun Heo
2012-11-19 2:07 ` Alan Stern
2012-11-19 3:21 ` Aaron Lu
2012-11-19 14:50 ` Tejun Heo
2012-11-09 6:52 ` [PATCH v9 08/10] scsi: sr: support (un)block events Aaron Lu
2012-11-09 6:52 ` [PATCH v9 09/10] ata: zpodd: handle power transition of ODD Aaron Lu
2012-11-09 6:52 ` [PATCH v9 10/10] ata: expose pm qos flags to user space for ata device Aaron Lu
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