On Mon, 13 Mar 2017 16:55:59 -0700 Stefano Stabellini <sstabell...@kernel.org> wrote:
> Once a request is completed, xen_9pfs_push_and_notify gets called. In
> xen_9pfs_push_and_notify, update the indexes (data has already been
> copied to the sg by the common code) and send a notification to the
> frontend.
>
> Schedule the bottom-half to check if we already have any other requests
> pending.
>
> Signed-off-by: Stefano Stabellini <stef...@aporeto.com>
> CC: anthony.per...@citrix.com
> CC: jgr...@suse.com
> CC: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com>
> CC: Greg Kurz <gr...@kaod.org>
> ---
> hw/9pfs/xen-9p-backend.c | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)
>
> diff --git a/hw/9pfs/xen-9p-backend.c b/hw/9pfs/xen-9p-backend.c
> index d72a749..fed369f 100644
> --- a/hw/9pfs/xen-9p-backend.c
> +++ b/hw/9pfs/xen-9p-backend.c
> @@ -166,6 +166,22 @@ static void xen_9pfs_init_in_iov_from_pdu(V9fsPDU *pdu,
>
> static void xen_9pfs_push_and_notify(V9fsPDU *pdu)
> {
> + RING_IDX prod;
> + struct Xen9pfsDev *priv = container_of(pdu->s, struct Xen9pfsDev, state);
> + struct Xen9pfsRing *ring = &priv->rings[pdu->tag % priv->num_rings];
> +
Coding style for structured types.
> + ring->intf->out_cons = ring->out_cons;
> + xen_wmb();
> +
> + prod = ring->intf->in_prod;
> + xen_rmb();
> + ring->intf->in_prod = prod + pdu->size;
> + xen_wmb();
> +
> + ring->inprogress = false;
> + xenevtchn_notify(ring->evtchndev, ring->local_port);
> +
> + qemu_bh_schedule(ring->bh);
> }
>
> static const struct V9fsTransport xen_9p_transport = {
pgpZJQFwhGoZU.pgp
Description: OpenPGP digital signature
_______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
