On Thu, Apr 3, 2025 at 2:32 PM Dongli Zhang <dongli.zhang@xxxxxxxxxx> wrote: > > Currently, the only user of vhost_log_write() is vhost-net. The 'len' > argument prevents logging of pages that are not tainted by the RX path. > > Adjustments are needed since more drivers (i.e. vhost-scsi) begin using > vhost_log_write(). So far vhost-net RX path may only partially use pages > shared via the last vring descriptor. Unlike vhost-net, vhost-scsi always > logs all pages shared via vring descriptors. To accommodate this, > use (len == U64_MAX) to indicate whether the driver would log all pages of > vring descriptors, or only pages that are tainted by the driver. > > In addition, removes BUG(). > > Suggested-by: Joao Martins <joao.m.martins@xxxxxxxxxx> > Signed-off-by: Dongli Zhang <dongli.zhang@xxxxxxxxxx> Acked-by: Jason Wang <jasowang@xxxxxxxxxx> Thanks
