Re: [PATCH 3/5] scsi: Add 'access_state' attribute

[Hannes Reinecke <hare@suse.de>]

On 07/09/2015 10:22 AM, Christoph Hellwig wrote:
> On Wed, Jul 08, 2015 at 01:09:46PM +0200, Hannes Reinecke wrote:
>> Add an 'access_state' attribute to display the LUN access state.
> 
> Should we just reuse the ALUA values here as they part of the spec
> and map the legacy implemetation values to it?
> 
That's what I've attempted to; only I've displayed them as text,
not as a numeric value.
But sure, the idea was to take the ALUA values and map legacy
implementation onto it.

> I'd also really love to store the access_state variable in
> struct scsi_device so we can perform the checks for it in core code
> instead of the device handlers.
> 
That would be a good idea indeed. I had been pondering the idea of a
revamped multipath integration, where this would be come in handy.

I can easily adapt the patches here.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		      zSeries & Storage
hare@suse.de			      +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
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