K 10
svn:author
V 5
markj
K 8
svn:date
V 27
2017-03-15T00:29:27.859964Z
K 7
svn:log
V 292
When draining a callout, don't clear CALLOUT_ACTIVE while it is running.

The callout may reschedule itself and execute again before callout_drain()
returns, but we should not clear CALLOUT_ACTIVE until the callout is
stopped.

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

END