[PATCH v2 3/3] sched: decay a detached se when it's attached to its cfs_rq

From: Byungchul Park se's load can be valuable just after being detached from cfs_rq, however it will become useless over time, e.g. in case of switching to another sched class and switching back to fair class. therefore even in case where se is already detached from cfs, decaying its load is

[PATCH v2 3/3] sched: decay a detached se when it's attached to its cfs_rq

From: Byungchul Park byungchul.p...@lge.com se's load can be valuable just after being detached from cfs_rq, however it will become useless over time, e.g. in case of switching to another sched class and switching back to fair class. therefore even in case where se is already detached from cfs,