K 10
svn:author
V 3
smh
K 8
svn:date
V 27
2016-01-11T10:24:30.215384Z
K 7
svn:log
V 499
Close iSCSI sessions on shutdown

Ensure that all iSCSI sessions are correctly terminated during shutdown.

* Enhances the changes done by r286226 (D3052).
* Add shutdown post sync event to run after filesystem shutdown
  (SHUTDOWN_PRI_FIRST) but before CAM shutdown (SHUTDOWN_PRI_DEFAULT).
* Changes iscsi_maintenance_thread to processes terminate in preference to
  reconnect.

Reviewed by:	trasz
MFC after:	2 weeks
Sponsored by:	Multiplay
Differential Revision:	https://reviews.freebsd.org/D4429

END