From: Doug Ledford <dledford@redhat.com>
To: Kurt Garloff <garloff@suse.de>
Cc: Linda Lee <lindaclee2002@yahoo.com>, linux-scsi@vger.kernel.org
Subject: Re: SCSI reserve/release
Date: Thu, 27 Feb 2003 18:32:25 -0500 [thread overview]
Message-ID: <3E5EA009.2070401@redhat.com> (raw)
In-Reply-To: <20030227225334.GB14200@nbkurt>
Kurt Garloff wrote:
> You can do this. But note that you will lose the reservation
> on a reset of the SCSI bus which can occur due to error handling
> of your box (or another one). As long as the kernel does not
> keep track of reservation states (or you invent some notification
> mechanism for SCSI resets to user space), you can't handle this
> reliably.
That's not entirely true. The package I posted a note about a few
minutes ago does in fact handle this via a means of cooperative
reservation operations. In other words, you can't do it reliably in a
hostile environment, but by enacting a few policy rules (which my app
does) and then adhering to those rules, you can.
--
Doug Ledford <dledford@redhat.com> 919-754-3700 x44233
Red Hat, Inc.
1801 Varsity Dr.
Raleigh, NC 27606
next prev parent reply other threads:[~2003-02-27 23:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-27 20:51 SCSI reserve/release Linda Lee
2003-02-27 22:53 ` Kurt Garloff
2003-02-27 23:32 ` Doug Ledford [this message]
2003-02-27 23:21 ` Doug Ledford
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