Re: [PATCH 0/1] A new virtio-blk error code for host-side ENOSPC

["Michael S. Tsirkin" <mst@redhat.com>]

On Wed, Jun 19, 2024 at 10:00:24AM -0400, Stefan Hajnoczi wrote:
> On Tue, Jun 18, 2024 at 05:18:57PM +0900, Keiichi Watanabe wrote:
> > This patch proposes a new error code VIRTIO_BLK_S_NOSPC to report
> > the device's ENOSPC error to the driver so the driver can treat it
> > in a different way from other IO errors.
> > More motivation is explained in fs-devel mail [1].
> > 
> > [2] is a prototype implementation in crosvm and [3] is in virtio-blk
> > driver. Idealy, the error should be propagated to the guest file system
> > and handled smartly, but the part is still under discussion.
> > 
> > [1]: https://lore.kernel.org/linux-fsdevel/CAD90VcZybb0ZOVrhE-MqDPwEya8878uzA1RBwd68U7x4CufkTQ@mail.gmail.com/T/#u
> 
> I have replied on linux-fsdevel so we can discuss a bit more about the
> context and get input from storage and file systems people.
> 
> Thanks,
> Stefan

Stefan could you also comment on whether we are likely to add many more
errno values soonish?


> > [2]: https://crrev.com/c/5599649
> > [3]: https://crrev.com/c/5600325
> > 
> > 
> > *** BLURB HERE ***
> > 
> > Keiichi Watanabe (1):
> >   virito-blk: Support NOSPC error
> > 
> >  device-types/blk/description.tex | 13 ++++++++-----
> >  1 file changed, 8 insertions(+), 5 deletions(-)
> > 
> > -- 
> > 2.45.2.627.g7a2c4fd464-goog
> > 
> >