From: Michal Hocko Date: Thu, 1 Dec 2011 16:00:22 +0000 (+0100) Subject: nohz: Remove update_ts_time_stat from tick_nohz_start_idle X-Git-Tag: v3.4-rc1~44^2~30 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=430ee8819553f66fe00e36f676a45886d76e7e8b;p=profile%2Fivi%2Fkernel-adaptation-intel-automotive.git 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 Cc: Arjan van de Ven Link: http://lkml.kernel.org/r/1322755222-6951-1-git-send-email-mhocko@suse.cz Signed-off-by: Thomas Gleixner --- diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 7656642..8cfffd9 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -182,11 +182,7 @@ static void tick_nohz_stop_idle(int cpu, ktime_t now) 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); + ktime_t now = ktime_get(); ts->idle_entrytime = now; ts->idle_active = 1;