K 10
svn:author
V 7
glebius
K 8
svn:date
V 27
2019-01-15T18:32:26.468925Z
K 7
svn:log
V 353
Only do uz_items accounting for zones that have a limit set in uz_max_items.
This reduces amount of locking required for these zones.

Also, for cache only zones (UMA_ZFLAG_CACHE) accounting uz_items wasn't
correct at all, since they may allocate items directly from their backing
store and then free them via UMA underflowing uz_items.

Tested by:	pho

END