From: Frederic Weisbecker <fweisbec@gmail.com>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: [PATCH 1/2] nohz: Drop useless call in tick_nohz_start_idle()
Date: Thu, 21 Jul 2011 20:49:36 +0200 [thread overview]
Message-ID: <1311274177-23891-1-git-send-email-fweisbec@gmail.com> (raw)
The call to update_ts_time_stats() there is useless. All
we need is to save the idle entry_time.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
---
kernel/time/tick-sched.c | 3 ---
1 files changed, 0 insertions(+), 3 deletions(-)
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index d5097c4..58e1a96 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -185,9 +185,6 @@ static ktime_t tick_nohz_start_idle(int cpu, struct tick_sched *ts)
ktime_t now;
now = ktime_get();
-
- update_ts_time_stats(cpu, ts, now, NULL);
-
ts->idle_entrytime = now;
ts->idle_active = 1;
sched_clock_idle_sleep_event();
--
1.7.5.4
next reply other threads:[~2011-07-21 18:49 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-21 18:49 Frederic Weisbecker [this message]
2011-07-21 18:49 ` [PATCH 2/2] nohz: Drop ts->idle_active Frederic Weisbecker
2011-07-25 21:14 ` [PATCH 3/2] nohz: Drop useless ts->inidle check before rearming the tick Frederic Weisbecker
2011-08-23 16:50 ` [PATCH 1/2] nohz: Drop useless call in tick_nohz_start_idle() Frederic Weisbecker
2011-09-01 12:31 ` Frederic Weisbecker
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