K 10
svn:author
V 7
git2svn
K 8
svn:date
V 27
2021-03-09T02:48:44.148207Z
K 7
svn:log
V 437
Do not exit ctl_be_block_worker() prematurely.

Return while there are any I/Os in a queue may result in them stuck
indefinitely, since there is only one taskqueue task for all of them.
I think I've reproduced this by switching ha_role to secondary under
heavy load.

MFC after:	3 days

(cherry picked from commit 6ed39db2573bb808ac2c206cd6c831f0be86219c)

Git Hash:   c120ef9e141e3c8b9b6025aa947dcc7c693ee2b8
Git Author: mav@FreeBSD.org
END