zfsonlinux/spl — pull request #99 by gentoofan (2012-04-19 01:15:11+00:00)
Title: Make taskqueues mimic loopback device's -20 nice value

A comparison of swap on zvols with swap on the loopback device revealed
that the loopback device sets the nice value to -20. An audit of the
code does not reveal any downside to doing that, so we can do it too.