K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2020-11-10T14:23:46.967178Z
K 7
svn:log
V 234
zfs: combine zio caches if possible

This deduplicates 2 sets of caches using the same sizes.

Memory savings fluctuate a lot, one sample result is buildworld on zfs
saving ~180MB RAM in reduced page count associated with zio caches.

END