K 10
svn:author
V 5
sephe
K 8
svn:date
V 27
2016-08-05T08:57:51.534357Z
K 7
svn:log
V 227
hyperv/vmbus: Only make sure the TX bufring will not be closed.

KVP can write data, whose size is > 1/2 TX bufring size.

MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7414

END