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| author | Ingo Molnar <mingo@kernel.org> | 2017-02-01 09:12:25 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-02-01 09:12:25 +0100 |
| commit | ed5c8c854f2b990dfa4d85c4995d115768a05d3c (patch) | |
| tree | a4a826795ec6784f25bebade98bdb20121d9c211 /kernel/time | |
| parent | 619bd4a71874a8fd78eb6ccf9f272c5e98bcc7b7 (diff) | |
| parent | a2ca3d617944417e9dd5f09fc8a4549cda115f4f (diff) | |
| download | linux-stable-ed5c8c854f2b990dfa4d85c4995d115768a05d3c.tar.gz linux-stable-ed5c8c854f2b990dfa4d85c4995d115768a05d3c.tar.bz2 linux-stable-ed5c8c854f2b990dfa4d85c4995d115768a05d3c.zip | |
Merge branch 'linus' into sched/core, to pick up fixes and refresh the branch
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/time')
| -rw-r--r-- | kernel/time/tick-sched.c | 9 | ||||
| -rw-r--r-- | kernel/time/tick-sched.h | 2 |
2 files changed, 9 insertions, 2 deletions
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 2c115fdab397..74e0388cc88d 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -767,7 +767,7 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts, tick = expires; /* Skip reprogram of event if its not changed */ - if (ts->tick_stopped && (expires == dev->next_event)) + if (ts->tick_stopped && (expires == ts->next_tick)) goto out; /* @@ -787,6 +787,8 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts, trace_tick_stop(1, TICK_DEP_MASK_NONE); } + ts->next_tick = tick; + /* * If the expiration time == KTIME_MAX, then we simply stop * the tick timer. @@ -802,7 +804,10 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts, else tick_program_event(tick, 1); out: - /* Update the estimated sleep length */ + /* + * Update the estimated sleep length until the next timer + * (not only the tick). + */ ts->sleep_length = ktime_sub(dev->next_event, now); return tick; } diff --git a/kernel/time/tick-sched.h b/kernel/time/tick-sched.h index bf38226e5c17..075444e3d48e 100644 --- a/kernel/time/tick-sched.h +++ b/kernel/time/tick-sched.h @@ -27,6 +27,7 @@ enum tick_nohz_mode { * timer is modified for nohz sleeps. This is necessary * to resume the tick timer operation in the timeline * when the CPU returns from nohz sleep. + * @next_tick: Next tick to be fired when in dynticks mode. * @tick_stopped: Indicator that the idle tick has been stopped * @idle_jiffies: jiffies at the entry to idle for idle time accounting * @idle_calls: Total number of idle calls @@ -44,6 +45,7 @@ struct tick_sched { unsigned long check_clocks; enum tick_nohz_mode nohz_mode; ktime_t last_tick; + ktime_t next_tick; int inidle; int tick_stopped; unsigned long idle_jiffies; |