evie/android_kernel_oneplus_msm8998
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Merge "sched: prevent race between disable window statistics and task grouping"

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Linux Build Service Account 2016-11-04 22:22:10 -07:00 • committed by Gerrit - the friendly Code Review server
commit 6d25dab1ba
1 changed files with 4 additions and 4 deletions
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8
kernel/sched/hmp.c
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@ -3150,14 +3150,14 @@ void reset_all_window_stats(u64 window_start, unsigned int window_size)
unsigned int old = 0, new = 0;
struct related_thread_group *grp;
read_lock(&related_thread_group_lock);
disable_window_stats();
reset_all_task_stats();
local_irq_save(flags);
read_lock(&related_thread_group_lock);
for_each_possible_cpu(cpu)
raw_spin_lock(&cpu_rq(cpu)->lock);
@ -3223,10 +3223,10 @@ void reset_all_window_stats(u64 window_start, unsigned int window_size)
for_each_possible_cpu(cpu)
raw_spin_unlock(&cpu_rq(cpu)->lock);
read_unlock(&related_thread_group_lock);
local_irq_restore(flags);
read_unlock(&related_thread_group_lock);
trace_sched_reset_all_window_stats(window_start, window_size,
sched_ktime_clock() - start_ts, reason, old, new);
}