Re: [PATCH] xen/blkfront: fix bug in backported patch

Greg KH
2021-12-27T12:43:46Z

On Thu, Dec 23, 2021 at 02:40:38PM +0100, Juergen Gross wrote:
> On 23.12.21 11:57, Greg KH wrote:
> > On Thu, Dec 23, 2021 at 11:53:08AM +0100, Juergen Gross wrote:
> > > The backport of commit 8f5a695d99000fc ("xen/blkfront: don't take local
> > > copy of a request from the ring page") to stable 4.4 kernel introduced
> > > a bug when adding the needed blkif_ring_get_request() function, as
> > > info->ring.req_prod_pvt was incremented twice now.
> > >
> > > Fix that be deleting the now superfluous increments after calling that
> > > function.
> > >
> > > Signed-off-by: Juergen Gross <jgross@suse.com>
> > > ---
> > > drivers/block/xen-blkfront.c | 4 ----
> > > 1 file changed, 4 deletions(-)
> >
> > So this is only needed in 4.4.y? No other backports were incorrect?
>
> Yes. 4.4 only.

Great, now queued up, thanks.

greg k-h