K 10
svn:author
V 6
badger
K 8
svn:date
V 27
2017-03-06T01:11:34.871831Z
K 7
svn:log
V 526
MFC r313733:

sleepq_catch_signals: do thread suspension before signal check

Since locks are dropped when a thread suspends, it's possible for another
thread to deliver a signal to the suspended thread. If the thread awakens from
suspension without checking for signals, it may go to sleep despite having
a pending signal that should wake it up. Therefore the suspension check is
done first, so any signals sent while suspended will be caught in the
subsequent signal check.

Approved by:	kib (mentor)
Sponsored by:	Dell EMC

END