[PATCH 08/10] sched: Misc preps for cgroup unified hierarchy interface

Make the following changes in preparation for the cpu controller interface implementation for the unified hierarchy. This patch doesn't cause any functional differences. * s/cpu_stats_show()/cpu_cfs_stats_show()/ * s/cpu_files/cpu_legacy_files/ * Separate out cpuacct_stats_read() from

[PATCH 08/10] sched: Misc preps for cgroup unified hierarchy interface

Make the following changes in preparation for the cpu controller interface implementation for the unified hierarchy. This patch doesn't cause any functional differences. * s/cpu_stats_show()/cpu_cfs_stats_show()/ * s/cpu_files/cpu_legacy_files/ * Separate out cpuacct_stats_read() from