- rather than embedding bufq_state in driver softc,
have a pointer to the former.
- move bufq related functions from kern/subr_disk.c to kern/subr_bufq.c.
- rename method to strategy for consistency.
- move some definitions which don't need to be exposed to the rest of kernel
from sys/bufq.h to sys/bufq_impl.h.
(is it better to move it to kern/ or somewhere?)
- fix some obvious breakage in dev/qbus/ts.c. (not tested)
Be more informative about the state of the disk (locked, unloaded etc...)
Send NULL as proc pointer to bus_dma_load if B_PHYS is not set.
Break out softc's from rl.c to rlvar.h for inclusion elsewhere.