Messages in this thread Patch in this message | | | From | Scott Wood <> | Subject | [PATCH 2/4] tick/sched: Set last_tick in init paths | Date | Mon, 16 Dec 2019 18:22:23 -0500 |
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This eliminates the need to save last_tick on nohz entry.
Signed-off-by: Scott Wood <swood@redhat.com> --- kernel/time/tick-sched.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 8936b604dd6c..59e663e240fc 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -794,7 +794,6 @@ static void tick_nohz_stop_tick(struct tick_sched *ts, int cpu) calc_load_nohz_start(); quiet_vmstat(); - ts->last_tick = hrtimer_get_expires(&ts->sched_timer); ts->tick_stopped = 1; trace_tick_stop(1, TICK_DEP_MASK_NONE); } @@ -1248,6 +1247,7 @@ static void tick_nohz_switch_to_nohz(void) hrtimer_set_expires(&ts->sched_timer, next); hrtimer_forward_now(&ts->sched_timer, tick_period); + ts->last_tick = hrtimer_get_expires(&ts->sched_timer); tick_program_event(hrtimer_get_expires(&ts->sched_timer), 1); tick_nohz_activate(ts, NOHZ_MODE_LOWRES); } @@ -1355,6 +1355,7 @@ void tick_setup_sched_timer(void) } hrtimer_forward(&ts->sched_timer, now, tick_period); + ts->last_tick = hrtimer_get_expires(&ts->sched_timer); hrtimer_start_expires(&ts->sched_timer, HRTIMER_MODE_ABS_PINNED_HARD); tick_nohz_activate(ts, NOHZ_MODE_HIGHRES); } -- 1.8.3.1
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