[PATCH -tip] sched/wake_q: Clarify queue reinit

[Davidlohr Bueso <dave@stgolabs.net>]

As of bcc9a76d5ac (locking/rwsem: Reinit wake_q after use), the
comment regarding the list reinitialization no longer applies,
update it with the new wake_q_init() helper.

Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
---
 include/linux/sched.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 3640bde9f982..c0bc626c531f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -998,8 +998,8 @@ enum cpu_idle_type {
  *
  * The DEFINE_WAKE_Q macro declares and initializes the list head.
  * wake_up_q() does NOT reinitialize the list; it's expected to be
- * called near the end of a function, where the fact that the queue is
- * not used again will be easy to see by inspection.
+ * called near the end of a function. Otherwise, the list can be
+ * re-initialized for later re-use by wake_q_init().
  *
  * Note that this can cause spurious wakeups. schedule() callers
  * must ensure the call is done inside a loop, confirming that the
-- 
2.6.6