K 10
svn:author
V 6
royger
K 8
svn:date
V 27
2017-03-07T09:17:48.432378Z
K 7
svn:log
V 420
xenstore: fix suspension when using the xenstore device

Lock the xenstore request mutex when suspending user-space processes, in order
to prevent any process from holding this lock when going into suspension, or
else the xenstore suspend process is going to deadlock.

Submitted by:		Liuyingdong <liuyingdong@huawei.com>
Reviewed by:		royger
MFC after:		2 weeks
Differential revision:	https://reviews.freebsd.org/D9638

END