linux-kernel - [PATCH] sched: remove hrtick

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Date:	Mon, 18 Apr 2011 20:27:32 +0800
From:	Hillf Danton <dhillf@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Ingo Molnar <mingo@...e.hu>, Peter Zijlstra <peterz@...radead.org>
Subject: [PATCH] sched: remove hrtick_enabled()

The function, hrtick_enabled(), could be removed, since it is not used
anywhere, though defined.

Signed-off-by: Hillf Danton <dhillf@...il.com>
---

--- a/kernel/sched.c	2011-03-30 03:09:48.000000000 +0800
+++ b/kernel/sched.c	2011-04-18 20:28:22.000000000 +0800
@@ -994,20 +994,6 @@ static struct rq *this_rq_lock(void)
  * rq->lock.
  */

-/*
- * Use hrtick when:
- *  - enabled by features
- *  - hrtimer is actually high res
- */
-static inline int hrtick_enabled(struct rq *rq)
-{
-	if (!sched_feat(HRTICK))
-		return 0;
-	if (!cpu_active(cpu_of(rq)))
-		return 0;
-	return hrtimer_is_hres_active(&rq->hrtick_timer);
-}
-
 static void hrtick_clear(struct rq *rq)
 {
 	if (hrtimer_active(&rq->hrtick_timer))
--
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