From: Hannes Reinecke <hare@suse.de>
To: Christoph Hellwig <hch@lst.de>
Cc: Mike Christie <michaelc@cs.wisc.edu>,
Sean Stewart <Sean.Stewart@netapp.com>,
Bart Van Assche <bvanassche@acm.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/6] scsi_dh: get module reference outside of device handler
Date: Mon, 20 Oct 2014 10:06:08 +0200 [thread overview]
Message-ID: <5444C270.7020709@suse.de> (raw)
In-Reply-To: <20141020065355.GA6675@lst.de>
On 10/20/2014 08:53 AM, Christoph Hellwig wrote:
> On Mon, Oct 20, 2014 at 08:01:20AM +0200, Hannes Reinecke wrote:
>> Is it guaranteed that you cannot call ->attach() for devices which
>> already have a device_handler attached?
>> You've skipped the case
>>
>> scsi_dh != sdev->scsi_dh_data->scsi_dh
>
> No. Just instead of an if / else it's an if with an early return in the
> new code.
>
right. Indeed.
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@suse.de +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)
next prev parent reply other threads:[~2014-10-20 8:06 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-19 15:59 device handler cleanups Christoph Hellwig
2014-10-19 15:59 ` [PATCH 1/6] scsi_dh: get module reference outside of device handler Christoph Hellwig
2014-10-20 6:01 ` Hannes Reinecke
2014-10-20 6:53 ` Christoph Hellwig
2014-10-20 8:06 ` Hannes Reinecke [this message]
2014-10-19 16:00 ` [PATCH 2/6] scsi: use container_of to get at device handler private data Christoph Hellwig
2014-10-20 6:02 ` Hannes Reinecke
2014-10-19 16:00 ` [PATCH 3/6] scsi: remove struct scsi_dh_devlist Christoph Hellwig
2014-10-20 6:03 ` Hannes Reinecke
2014-10-19 16:00 ` [PATCH 4/6] scsi: device handlers must have attach and detach methods Christoph Hellwig
2014-10-20 6:04 ` Hannes Reinecke
2014-10-19 16:00 ` [PATCH 5/6] scsi_dh_hp_sw: fix return value on failed allocation Christoph Hellwig
2014-10-20 6:04 ` Hannes Reinecke
2014-10-19 16:00 ` [PATCH 6/6] scsi: handle more device handler setup/teardown in common code Christoph Hellwig
2014-10-20 6:06 ` Hannes Reinecke
2014-10-28 17:53 ` Mike Christie
2014-10-30 9:00 ` Christoph Hellwig
-- strict thread matches above, loose matches on Subject: below --
2014-10-30 9:19 device handler cleanups V2 Christoph Hellwig
2014-10-30 9:19 ` [PATCH 1/6] scsi_dh: get module reference outside of device handler Christoph Hellwig
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