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1bb5ec2eec
cgroup->bstat_pending is used to determine the base stat delta to propagate to the parent. While correct, this is different from how percpu delta is determined for no good reason and the inconsistency makes the code more difficult to understand. This patch makes parent propagation delta calculation use the same method as percpu to global propagation. * cgroup_base_stat_accumulate() is renamed to cgroup_base_stat_add() and cgroup_base_stat_sub() is added. * percpu propagation calculation is updated to use the above helpers. * cgroup->bstat_pending is replaced with cgroup->last_bstat and updated to use the same calculation as percpu propagation. Signed-off-by: Tejun Heo <tj@kernel.org> |
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