ftp://ftp.netbsd.org/pub/NetBSD/misc/xtraeme/bufq_on_the_fly.diff

- is there any point to change "sortmethod" on the fly?
  it's characteristics of the device.

- if you create a new file for bufq_ routines,
  it should contain bufq_alloc etc as well.

- string -> BUFQ_* conversion shouldn't be done in bufq_set_strat.
  it's better to make bufq_alloc itsself take a string.

- bufq_set_strat's argument shouldn't be a void pointer.

- bufq_set_strat seems broken.
  have you read bufq_alloc/free?

YAMAMOTO Takashi