boost io performance
fix proc/stat from showp
Revert "ARM RWSEM algorithm"

This reverts commit 34c2f9bc7e4366551c36a5273dd801dc3deba1a6.
Autogroup patch group by current user android UID
sched.fair improve the group logic
sched: Change rq->nr_running to unsigned int
sched: Fix nohz_idle_balance()
sched/nohz: Fix rq->cpu_load[] calculations
sched/nohz: Fix rq->cpu_load calculations some more
dynamic fsync from chad
Make vfs_cache_pressure configurable
remove +