> -Original Message-
> > > diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-
> > blkback/xenbus.c
> > > index e8c5c54e1d26..13d09630b237 100644
> > > --- a/drivers/block/xen-blkback/xenbus.c
> > > +++ b/drivers/block/xen-blkback/xenbus.c
> > > @@ -181,6 +181,8 @@ static
> -Original Message-
> From: Roger Pau Monné
> Sent: 11 December 2019 10:46
> To: Durrant, Paul
> Cc: xen-devel@lists.xenproject.org; linux-ker...@vger.kernel.org; Konrad
> Rzeszutek Wilk ; Jens Axboe ;
> Boris Ostrovsky ; Juergen Gross
> ; Stefano Stabellini
> Subject: Re: [PATCH v2
On Tue, Dec 10, 2019 at 11:33:47AM +, Paul Durrant wrote:
> By simply re-attaching to shared rings during connect_ring() rather than
> assuming they are freshly allocated (i.e assuming the counters are zero)
> it is possible for vbd instances to be unbound and re-bound from and to
>
By simply re-attaching to shared rings during connect_ring() rather than
assuming they are freshly allocated (i.e assuming the counters are zero)
it is possible for vbd instances to be unbound and re-bound from and to
(respectively) a running guest.
This has been tested by running:
while true;
