linux-kernel - Re: Asynchronous scsi scanning

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Message-ID: <464DB17A.4050004@s5r6.in-berlin.de>
Date:	Fri, 18 May 2007 16:00:26 +0200
From:	Stefan Richter <stefanr@...6.in-berlin.de>
To:	Peter Jones <pjones@...hat.com>
CC:	Dave Jones <davej@...hat.com>, Matthew Wilcox <matthew@....cx>,
	Benjamin LaHaise <bcrl@...ck.org>,
	James Bottomley <james.bottomley@...eleye.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-scsi@...r.kernel.org, kernel-packagers@...r.kernel.org
Subject: Re: Asynchronous scsi scanning

Peter Jones wrote:
> So really, either way means we need to update the tools.  It also 
> doesn't really solve the problem -- when I insert "usb-storage", the 
> SCSI scan may still finish while we're still enumerating the bus for USB 
> devices. (I'd be willing to believe I'm wrong about this specific 
> example, but I suspect the principle still applies for some other driver.)
> 
> In practice, we wind up doing the compare/timeout loop as on 
> /proc/scsi/scsi, but on /proc/bus/usb/devices or 
> /sys/bus/ieee1394/drivers/sbp2 instead.

sbp2 and its successor fw-sbp2 are not yet integrated with
scsi_wait_scan, but should be _some_ day.
http://bugzilla.kernel.org/show_bug.cgi?id=3225#c2
-- 
Stefan Richter
-=====-=-=== -=-= =--=-
http://arcgraph.de/sr/
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