forked from Minki/linux
Revert "cpufreq: governor: Fix negative idle_time when configured with CONFIG_HZ_PERIODIC"
Revert commit0df35026c6
(cpufreq: governor: Fix negative idle_time when configured with CONFIG_HZ_PERIODIC) that introduced a regression by causing the ondemand cpufreq governor to misbehave for CONFIG_TICK_CPU_ACCOUNTING unset (the frequency goes up to the max at one point and stays there indefinitely). The revert takes subsequent modifications of the code in question into account. Fixes:0df35026c6
(cpufreq: governor: Fix negative idle_time when configured with CONFIG_HZ_PERIODIC) Link: https://bugzilla.kernel.org/show_bug.cgi?id=115261 Reported-and-tested-by: Timo Valtoaho <timo.valtoaho@gmail.com> Cc: 4.5+ <stable@vger.kernel.org> # 4.5+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is contained in:
parent
c9d9c929e6
commit
94862a62df
@ -193,12 +193,8 @@ unsigned int dbs_update(struct cpufreq_policy *policy)
|
||||
wall_time = cur_wall_time - j_cdbs->prev_cpu_wall;
|
||||
j_cdbs->prev_cpu_wall = cur_wall_time;
|
||||
|
||||
if (cur_idle_time <= j_cdbs->prev_cpu_idle) {
|
||||
idle_time = 0;
|
||||
} else {
|
||||
idle_time = cur_idle_time - j_cdbs->prev_cpu_idle;
|
||||
j_cdbs->prev_cpu_idle = cur_idle_time;
|
||||
}
|
||||
idle_time = cur_idle_time - j_cdbs->prev_cpu_idle;
|
||||
j_cdbs->prev_cpu_idle = cur_idle_time;
|
||||
|
||||
if (ignore_nice) {
|
||||
u64 cur_nice = kcpustat_cpu(j).cpustat[CPUTIME_NICE];
|
||||
|
Loading…
Reference in New Issue
Block a user