search for: e6931b760b61

...mst at redhat.com> > --- > drivers/vhost/vhost.c | 36 ++++++++---------------------------- > drivers/vhost/vhost.h | 12 ------------ > 2 files changed, 8 insertions(+), 40 deletions(-) > > diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c > index 72ee55c810c4..e6931b760b61 100644 > --- a/drivers/vhost/vhost.c > +++ b/drivers/vhost/vhost.c > @@ -2299,12 +2299,12 @@ static int fetch_buf(struct vhost_virtqueue *vq) > return 1; > } > > -/* Reverse the effect of vhost_get_vq_desc. Useful for error handling. */ > +/* Revert the effect of fet...

...igned-off-by: Michael S. Tsirkin <mst at redhat.com> --- drivers/vhost/vhost.c | 36 ++++++++---------------------------- drivers/vhost/vhost.h | 12 ------------ 2 files changed, 8 insertions(+), 40 deletions(-) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 72ee55c810c4..e6931b760b61 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -2299,12 +2299,12 @@ static int fetch_buf(struct vhost_virtqueue *vq) return 1; } -/* Reverse the effect of vhost_get_vq_desc. Useful for error handling. */ +/* Revert the effect of fetch_buf. Useful for error handling. */ +stat...

This adds infrastructure required for supporting multiple ring formats. The idea is as follows: we convert descriptors to an independent format first, and process that converting to iov later. Used ring is similar: we fetch into an independent struct first, convert that to IOV later. The point is that we have a tight loop that fetches descriptors, which is good for cache utilization. This will