Re: [PATCH 0/2] virtio-blk: improve handling of DMA mapping failures

Michael S. Tsirkin
2020-03-03T14:49:33Z

On Tue, Mar 03, 2020 at 03:12:52PM +0100, Halil Pasic wrote:
> On Thu, 13 Feb 2020 13:37:26 +0100
> Halil Pasic <pasic@linux.ibm.com> wrote:
>
> > Two patches are handling new edge cases introduced by doing DMA mappings
> > (which can fail) in virtio core.
> >
> > I stumbled upon this while stress testing I/O for Protected Virtual
> > Machines. I deliberately chose a tiny swiotlb size and have generated
> > load with fio. With more than one virtio-blk disk in use I experienced
> > hangs.
> >
> > The goal of this series is to fix those hangs.
> >
> > Halil Pasic (2):
> > virtio-blk: fix hw_queue stopped on arbitrary error
> > virtio-blk: improve virtqueue error to BLK_STS
> >
> > drivers/block/virtio_blk.c | 17 ++++++++++++-----
> > 1 file changed, 12 insertions(+), 5 deletions(-)
> >
> >
> > base-commit: 39bed42de2e7d74686a2d5a45638d6a5d7e7d473
>
> ping
>
> Hi Michael, hi Jason,
>
> I got some favorable reviews for this, but AFAIK I got nothing form the
> maintainers yet.
>
> Is some of you going to pick these?
>
> Regards,
> Halil

I've queued this, thanks!