K 10
svn:author
V 4
jeff
K 8
svn:date
V 27
2020-01-04T03:15:34.141400Z
K 7
svn:log
V 325
Use a separate lock for the zone and keg.  This provides concurrency
between populating buckets from the slab layer and fetching full buckets
from the zone layer.  Eliminate some nonsense locking patterns where
we lock to fetch a single variable.

Reviewed by:	markj
Differential Revision:	https://reviews.freebsd.org/D22828

END