FreeNAS Code

The function nolog implies no logging should take place. Thus, we should redirect stdout to /dev/null first, then stderr. The previous incantation redirected stderr to stdout, which in turn would be logged.

Use the symbolic name for SIGQUIT instead of the magic number.
Make an honest effort at restoring the previous sigprocmask.

fix arguments order

add sysctl calls to generate config

Pass force4khack to lower layer.

add a button to start scrub

it doesn't really makes sense to log sysctl -b kern.geom.confxml

Fix typo.

do not pollute log with zpool status check

fix swapgb unbound var