linux-kernel - Re: [PATCH] sd: do not set changed flag on all unit attention conditions

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Date:	Tue, 17 Jul 2012 12:50:26 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Paolo Bonzini <pbonzini@...hat.com>
Cc:	Christoph Hellwig <hch@...radead.org>,
	James Bottomley <James.Bottomley@...senPartnership.com>,
	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org
Subject: Re: [PATCH] sd: do not set changed flag on all unit attention
 conditions

On Tue, Jul 17, 2012 at 06:47:15PM +0200, Paolo Bonzini wrote:
> Il 17/07/2012 18:36, Christoph Hellwig ha scritto:
> >> > There's no such thing in the market today as a removable disk that's
> >> > resizeable.  Removable disks are for things like backup cartridges and
> >> > ageing jazz drives.  Worse: most removeable devices today are USB card
> >> > readers whose standards compliance varies from iffy to non existent.
> >> > Resizeable disks are currently the province of storage arrays.
> > The virtual disks exported by aacraid are both marked removable and
> > can be resized.
> 
> Do they report resizing via unit attention?  I can skip this part on
> removable virtio-scsi disks if that's what real hardware does, it would
> also work.

I don't have access to aacraid hardware currently.

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