linux-kernel - Re: [PATCH v2 2/2] xen/scsiback: avoid warnings when adding multiple LUNs to a domain

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Date:	Mon, 8 Feb 2016 10:44:21 -0500
From:	Boris Ostrovsky <boris.ostrovsky@...cle.com>
To:	Juergen Gross <jgross@...e.com>, linux-kernel@...r.kernel.org,
	xen-devel@...ts.xen.org, konrad.wilk@...cle.com,
	david.vrabel@...rix.com
Cc:	stable@...r.kernel.org
Subject: Re: [PATCH v2 2/2] xen/scsiback: avoid warnings when adding multiple
 LUNs to a domain



On 02/08/2016 09:30 AM, Juergen Gross wrote:
> When adding more than one LUN to a frontend a warning for a failed
> assignment is issued in dom0 for each already existing LUN. Avoid this
> warning by checking for a LUN already existing when existence is
> allowed (scsiback_do_add_lun() called with try == 1).
>
> As the LUN existence check is needed now for a third time, factor it
> out into a function. This in turn leads to a more or less complete
> rewrite of scsiback_del_translation_entry() which will now return a
> proper error code in case of failure.
>
> Signed-off-by: Juergen Gross <jgross@...e.com>
> Cc: stable@...r.kernel.org

Reviewed-by: Boris Ostrovsky <boris.ostrovsky@...cle.com>