Linux SCSI subsystem development
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From: Hannes Reinecke <hare@suse.de>
To: Tejun Heo <htejun@gmail.com>
Cc: James Bottomley <jbottomley@suse.de>,
	SCSI Mailing List <linux-scsi@vger.kernel.org>,
	Richard Sharpe <realrichardsharpe@gmail.com>
Subject: Current plans for SDEV_EVT_* and friends
Date: Tue, 01 Feb 2011 15:55:14 +0100	[thread overview]
Message-ID: <4D481ED2.1060109@suse.de> (raw)

Hi Tejun,

seeing that you are moving the old SCSI / libata AEN handling over
to the new block-based workqueue, I was wondering what your plans
are with the remaining SDEV_EVT_* things.

Thing is I'm currently working on implementing proper Unit Attention
handling in the SCSI stack. For this I would need to have some field
off the scsi_device structure into which I can store information
about which events / event types are supported and which are activated.
So the existing bitmap approach with 'supported_events' would quite
a good starting point here, and it will even be useful to add
another one, eg 'enabled_events'.
And, of course, plan is to route appropriate events over to the
block workqueue by calling disk_check_events().

Unless you have other ideas/plans here ...

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		      zSeries & Storage
hare@suse.de			      +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Markus Rex, HRB 16746 (AG Nürnberg)
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             reply	other threads:[~2011-02-01 14:47 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-01 14:55 Hannes Reinecke [this message]
2011-02-01 14:59 ` Current plans for SDEV_EVT_* and friends Tejun Heo
2011-02-01 15:29   ` Hannes Reinecke
2011-02-01 15:29     ` Tejun Heo

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