On Sun, 16 Oct 2005 11:24:58 +0900
YAMAMOTO Takashi <yamt@mwd.biglobe.ne.jp> wrote:

> you can use the following fragments to implement your ioctls.
> 
> YAMAMOTO Takashi
> 
> 
> "get" ioctl:
> 	strategyname = bufq_getstrategyname(sc->sc_bufq);
> 
> "set" ioctl:
> 	error = bufq_alloc(&new, strategyname, BUFQ_EXACT);
> 	if (error) {
> 		goto out;
> 	}
> 	s = splbio();	/* driver dependent */
> 	old = sc->sc_bufq;
> 	sc->sc_bufq = new;
> 	bufq_move(new, old);
> 	splx(s);	/* driver dependent */
> 	bufq_free(old);

Really cool, I'll show you a patch soon.