[PATCH 0/8] correct load_balance()
From: Joonsoo Kim
Date: Thu Feb 14 2013 - 00:50:58 EST
Commit 88b8dac0 makes load_balance() consider other cpus in its group.
But, there are some missing parts for this feature to work properly.
This patchset correct these things and make load_balance() robust.
Others are related to LBF_ALL_PINNED. This is fallback functionality
when all tasks can't be moved as cpu affinity. But, currently,
if imbalance is not large enough to task's load, we leave LBF_ALL_PINNED
flag and 'redo' is triggered. This is not our intention, so correct it.
These are based on v3.8-rc7.
Joonsoo Kim (8):
sched: change position of resched_cpu() in load_balance()
sched: explicitly cpu_idle_type checking in rebalance_domains()
sched: don't consider other cpus in our group in case of NEWLY_IDLE
sched: clean up move_task() and move_one_task()
sched: move up affinity check to mitigate useless redoing overhead
sched: rename load_balance_tmpmask to load_balance_cpu_active
sched: prevent to re-select dst-cpu in load_balance()
sched: reset lb_env when redo in load_balance()
kernel/sched/core.c | 9 +++--
kernel/sched/fair.c | 107 +++++++++++++++++++++++++++++----------------------
2 files changed, 67 insertions(+), 49 deletions(-)
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