K 10
svn:author
V 3
avg
K 8
svn:date
V 27
2019-10-25T13:47:17.692829Z
K 7
svn:log
V 272
ow_temp: better scopes for the lock

The lock is used only for start / stop signaling.
It is used only for 'flags' field and the related condition variable.

This change is a follow-up to r354067, it was suggested by Warner in
D22107.

Suggested by:	imp
MFC after:	1 week

END