Re: [Xen-devel] [PATCH v2] Only call stat() when adding a disk if we expect a device to exist.

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Tue, 2013-04-23 at 15:08 +0100, Roger Pau Monne wrote:
> On 23/04/13 11:59, David Scott wrote:
> > We consider calling stat() a helpful error check in the following
> > circumstances only:
> >  1. the disk backend type must be PHYsical
> >  2. the disk backend domain must be the same as the running libxl
> >     code (ie LIBXL_TOOLSTACK_DOMID)
> >  3. there must not be a hotplug script because this would imply that
> >     the device won't be created until after the hotplug script has
> >     run.
> > 
> > With this fix, it is possible to use qemu's built-in block drivers
> > such as ceph/rbd, with a xl config disk spec like this:
> > 
> > disk=[ 
> > 'backendtype=qdisk,format=raw,vdev=hda,access=rw,target=rbd:rbd/ubuntu1204.img'
> >  ]
> > 
> > Signed-off-by: David Scott <dave.scott@xxxxxxxxxxxxx>
> > Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
> 
> Acked-by: Roger Pau Monnà <roger.pau@xxxxxxxxxx>

Applied, thanks.



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