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6f8b7ac222
cumulative_runnable_avg was introduced in commit ee4cebd75ed7 ("sched:
EAS/WALT: use cr_avg instead of prev_runnable_sum") in cpu_util() for
task placement, which is used to replace prev_runnable_sum.
Fix util_avg_walt in sched_load_avg_cpu trace, which use prev_runnable_sum
for cpu_util().
Moreover, fix potential overflow due to cumulative_runnable_avg is in u64.
Change-Id: I1220477bf2ff32a6e34a34b6280b15a8178203a8
Signed-off-by: Ke Wang <ke.wang@spreadtrum.com>
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