On Fri, Jun 20, 2025 at 09:10:02AM -0600, Caleb Sander Mateos wrote: > UBLK_IO_UNREGISTER_IO_BUF currently requires a valid q_id and tag to be > passed in the ublksrv_io_cmd. However, only the addr (registered buffer > index) is actually used to unregister the buffer. There is no check that > the q_id and tag are for the ublk request whose buffer is registered at > the given index. To prepare to allow userspace to omit the q_id and tag, > check the UBLK_F_SUPPORT_ZERO_COPY flag on the ublk_device instead of > the ublk_queue. > > Signed-off-by: Caleb Sander Mateos <csander@xxxxxxxxxxxxxxx> Reviewed-by: Ming Lei <ming.lei@xxxxxxxxxx> Thanks, Ming
