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| author | Michal Hocko <mhocko@suse.cz> | 2011-12-01 17:00:22 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2012-02-15 15:23:09 +0100 |
| commit | 430ee8819553f66fe00e36f676a45886d76e7e8b (patch) | |
| tree | e45859ba70d207635a21a27fffa438ecb3a60155 | |
| parent | 77b0d60c5adf39c74039e2142a1d3cd1e4d53799 (diff) | |
| download | linux-430ee8819553f66fe00e36f676a45886d76e7e8b.tar.bz2 | |
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@suse.cz>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Link: http://lkml.kernel.org/r/1322755222-6951-1-git-send-email-mhocko@suse.cz
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| -rw-r--r-- | kernel/time/tick-sched.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 7656642e4b8e..8cfffd9d9ce9 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; |