K 10
svn:author
V 4
jeff
K 8
svn:date
V 27
2019-11-27T00:39:23.141103Z
K 7
svn:log
V 342
Use atomics in more cases for object references.  We now can completely
omit the object lock if we are above a certain threshold.  Hold only a
single vnode reference when the vnode object has any ref > 0.  This
allows us to only lock the object and vnode on 0-1 and 1-0 transitions.

Differential Revision:	https://reviews.freebsd.org/D22452

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