K 10
svn:author
V 5
markj
K 8
svn:date
V 27
2016-05-18T03:50:21.035124Z
K 7
svn:log
V 451
Micro-optimize sleepq_broadcast().

- Avoid a conditional branch on the return value of sleepq_resume_thread()
  by ORing its return value into the boolean wakeup_swapper. This is
  consistent with other sleepqueue functions which just pass this return
  value to their caller.
- sleepq_resume_thread() unconditionally removes the thread from its queue,
  so there's no need to maintain a pointer to the next element in the queue.

MFC after:	2 weeks

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