K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2020-01-18T01:29:02.972134Z
K 7
svn:log
V 357
vfs: distribute freevnodes counter per-cpu

It gets rolled up to the global when deferred requeueing is performed.
A dedicated read routine makes sure to return a value only off by a certain
amount.

This soothes a global serialisation point for all 0<->1 hold count transitions.

Reviewed by:	jeff
Differential Revision:	https://reviews.freebsd.org/D23235

END