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Message-Id: <1322755222-6951-1-git-send-email-mhocko@suse.cz> Date: Thu, 1 Dec 2011 17:00:22 +0100 From: Michal Hocko <mhocko@...e.cz> To: linux-kernel@...r.kernel.org Cc: Arjan van de Ven <arjan@...ux.intel.com>, Thomas Gleixner <tglx@...utronix.de> Subject: [PATCH] nohz: Remove update_ts_time_stat from tick_nohz_start_idle There is no reason to call update_ts_time_stat from tick_nohz_start_idle anymore (after e0e37c20 sched: Eliminate the ts->idle_lastupdate field) when we updated idle_lastupdate unconditionally. We haven't set idle_active yet and do not provide last_update_time so the whole call end up being just 2 wasted branches. Signed-off-by: Michal Hocko <mhocko@...e.cz> CC: Arjan van de Ven <arjan@...ux.intel.com> CC: Thomas Gleixner <tglx@...utronix.de> --- kernel/time/tick-sched.c | 2 -- 1 files changed, 0 insertions(+), 2 deletions(-) diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 4042064..be3cab0 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -186,8 +186,6 @@ static ktime_t tick_nohz_start_idle(int cpu, struct tick_sched *ts) now = ktime_get(); - update_ts_time_stats(cpu, ts, now, NULL); - ts->idle_entrytime = now; ts->idle_active = 1; sched_clock_idle_sleep_event(); -- 1.7.7.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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