K 10
svn:author
V 3
imp
K 8
svn:date
V 27
2018-03-23T16:23:15.061593Z
K 7
svn:log
V 315
Flag when we have a pending TUR. Don't schedule another one when we
have one pending. Otherwise, we can race and send two, which is
wasteful in close proximity. It can also cause the acaquire/release
count for TUR to be > 1, which is undexpected.

PR: 226510
Differential Review: https://reviews.freebsd.org/D14792

END