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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2008-04-19 19:44:57 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-04-19 19:44:57 +0200 |
| commit | d0b27fa77854b149ad4af08b0fe47fe712a47ade (patch) | |
| tree | 2f4487c108a5132e8d52456567b4a67e78fbb4a6 /kernel/time | |
| parent | 57d3da2911787a101a384532f4519f9640bae883 (diff) | |
| download | kernel_samsung_smdk4412-d0b27fa77854b149ad4af08b0fe47fe712a47ade.zip kernel_samsung_smdk4412-d0b27fa77854b149ad4af08b0fe47fe712a47ade.tar.gz kernel_samsung_smdk4412-d0b27fa77854b149ad4af08b0fe47fe712a47ade.tar.bz2 | |
sched: rt-group: synchonised bandwidth period
Various SMP balancing algorithms require that the bandwidth period
run in sync.
Possible improvements are moving the rt_bandwidth thing into root_domain
and keeping a span per rt_bandwidth which marks throttled cpus.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/time')
| -rw-r--r-- | kernel/time/tick-sched.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 69dba0c..d358d4e 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -191,7 +191,6 @@ u64 get_cpu_idle_time_us(int cpu, u64 *last_update_time) void tick_nohz_stop_sched_tick(void) { unsigned long seq, last_jiffies, next_jiffies, delta_jiffies, flags; - unsigned long rt_jiffies; struct tick_sched *ts; ktime_t last_update, expires, now; struct clock_event_device *dev = __get_cpu_var(tick_cpu_device).evtdev; @@ -243,10 +242,6 @@ void tick_nohz_stop_sched_tick(void) next_jiffies = get_next_timer_interrupt(last_jiffies); delta_jiffies = next_jiffies - last_jiffies; - rt_jiffies = rt_needs_cpu(cpu); - if (rt_jiffies && rt_jiffies < delta_jiffies) - delta_jiffies = rt_jiffies; - if (rcu_needs_cpu(cpu)) delta_jiffies = 1; /* |