On Thu, Mar 25, 2021 at 04:07:29PM +0100, Greg Kurz wrote: > Multiqueue devices such as virtio-scsi or virtio-blk, all open-code the > same pattern to setup/tear down host notifiers of the request virtqueues. > Consolidate the pattern in a new virtio_bus_set_host_notifiers() API. > Since virtio-scsi and virtio-blk both fallback to userspace if host > notifiers can't be set, e.g. file descriptor exhaustion, go for a > warning rather than an error. Also make it oneshot to avoid flooding > the logs since the message would be very likely the same for all > virtqueues. > > Devices will be converted to use virtio_bus_set_host_notifiers() in > separate patches. > > Signed-off-by: Greg Kurz <[email protected]> > --- > include/hw/virtio/virtio-bus.h | 3 +++ > hw/virtio/virtio-bus.c | 36 ++++++++++++++++++++++++++++++++++ > 2 files changed, 39 insertions(+)
Reviewed-by: Stefan Hajnoczi <[email protected]>
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