K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2019-07-31T19:16:49.038792Z
K 7
svn:log
V 337
Fix handling of transient casueword(9) failures in do_sem_wait().

In particular, restart should be only done when the failure is
transient.  For this, recheck the count1 value after the operation.

Note that do_sem_wait() is older usem interface.

Reported and tested by:	bdrewery
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week

END