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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.
> 


  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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