On Wed, Jul 22, 2020 at 05:09:24PM +0200, Guennadi Liakhovetski wrote: > VHOST_VSOCK_SET_RUNNING is used by the vhost vsock driver to perform > crucial VirtQueue initialisation, like assigning .private fields and > calling vhost_vq_init_access(), and clean up. However, this ioctl is > actually extremely useful for any vhost driver, that doesn't have a > side channel to inform it of a status change, e.g. upon a guest > reboot. This patch makes that ioctl generic, while preserving its > numeric value and also keeping the original alias. > > Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@xxxxxxxxxxxxxxx> > --- > include/uapi/linux/vhost.h | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h > index 0c2349612e77..5d9254e2a6b6 100644 > --- a/include/uapi/linux/vhost.h > +++ b/include/uapi/linux/vhost.h > @@ -95,6 +95,8 @@ > #define VHOST_SET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x25, __u64) > #define VHOST_GET_BACKEND_FEATURES _IOR(VHOST_VIRTIO, 0x26, __u64) > > +#define VHOST_SET_RUNNING _IOW(VHOST_VIRTIO, 0x61, int) > + > /* VHOST_NET specific defines */ > > /* Attach virtio net ring to a raw socket, or tap device. > @@ -116,7 +118,7 @@ > /* VHOST_VSOCK specific defines */ > > #define VHOST_VSOCK_SET_GUEST_CID _IOW(VHOST_VIRTIO, 0x60, __u64) > -#define VHOST_VSOCK_SET_RUNNING _IOW(VHOST_VIRTIO, 0x61, int) > +#define VHOST_VSOCK_SET_RUNNING VHOST_SET_RUNNING > > /* VHOST_VDPA specific defines */ > > -- > 2.27.0 > Reviewed-by: Stefano Garzarella <sgarzare@xxxxxxxxxx>
