K 10
svn:author
V 3
mav
K 8
svn:date
V 27
2019-02-04T16:13:41.645539Z
K 7
svn:log
V 160
Add missed tunables/sysctls for some new vdev variables.

While there, make few existing sysctls writeable, since there is no reason
not to.

MFC after:	1 week

END