K 10
svn:author
V 5
markj
K 8
svn:date
V 27
2017-04-14T16:54:50.583814Z
K 7
svn:log
V 483
Stop mirror synchronization before draining the I/O queue.

Regular I/O requests may be blocked by concurrent synchronization requests
targeted to the same LBAs, in which case they are moved to a holding queue
until the conflicting I/O completes. We therefore want to stop
synchronization before completing pending I/O in g_mirror_destroy_provider()
since this ensures that blocked I/O requests are completed as well.

Tested by:	pho
MFC after:	2 weeks
Sponsored by:	Dell EMC Isilon

END