[tip:core/rcu] rcu: Remove obsolete rcu_check_callbacks() header comment

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Commit-ID:  5403d367a746cfc51676e3b39be600d94f587867
Gitweb:     http://git.kernel.org/tip/5403d367a746cfc51676e3b39be600d94f587867
Author:     Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
AuthorDate: Thu, 1 Sep 2016 05:04:24 -0700
Committer:  Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Mon, 14 Nov 2016 10:46:14 -0800

rcu: Remove obsolete rcu_check_callbacks() header comment

In the deep past, rcu_check_callbacks() was only invoked if rcu_pending()
returned true.  Which was fine, but these days rcu_check_callbacks()
is invoked unconditionally.  This commit therefore removes the obsolete
sentence from the header comment.

Reported-by: Michalis Kokologiannakis <mixaskok@xxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Josh Triplett <josh@xxxxxxxxxxxxxxxx>
---
 kernel/rcu/tree.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 37e4f7d..d527800 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -2828,8 +2828,7 @@ static void rcu_do_batch(struct rcu_state *rsp, struct rcu_data *rdp)
  * Also schedule RCU core processing.
  *
  * This function must be called from hardirq context.  It is normally
- * invoked from the scheduling-clock interrupt.  If rcu_pending returns
- * false, there is no point in invoking rcu_check_callbacks().
+ * invoked from the scheduling-clock interrupt.
  */
 void rcu_check_callbacks(int user)
 {
--
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