[GIT PULL] scheduler updates for v4.20

From: Ingo Molnar
Date: Tue Oct 23 2018 - 07:06:08 EST


Please pull the latest sched-core-for-linus git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched-core-for-linus

# HEAD: 11e13696a08e838ba48c72404c2b3f41429b5b20 sched/completions/Documentation: Add recommendation for dynamic and ONSTACK completions

The main changes are:

- Migrate CPU-intense 'misfit' tasks on asymmetric capacity systems, to
better utilize (much) faster 'big core' CPUs.
(Morten Rasmussen, Valentin Schneider)

- Topology handling improvements, in particular when CPU capacity
changes and related load-balancing fixes/improvements (Morten Rasmussen)

- ... plus misc other improvements, fixes and updates.



Borislav Petkov (1):
cpu/SMT: State SMT is disabled even with nosmt and without "=force"

Chris Redpath (1):
sched/fair: Don't move tasks to lower capacity CPUs unless necessary

Dietmar Eggemann (2):
sched/fair: Disable LB_BIAS by default
sched/fair: Remove setting task's se->runnable_weight during PELT update

Ingo Molnar (1):
sched/completions/Documentation: Clean up the document some more

John Garry (1):
sched/completions/Documentation: Fix a couple of punctuation nits

Morten Rasmussen (9):
sched/topology: Add SD_ASYM_CPUCAPACITY flag detection
sched/topology, drivers/base/arch_topology: Rebuild the sched_domain hierarchy when capacities change
sched/topology, arch/arm64: Rebuild the sched_domain hierarchy when the CPU capacity changes
sched/topology, arch/arm: Rebuild sched_domain hierarchy when CPU capacity changes
sched/topology: Add static_key for asymmetric CPU capacity optimizations
sched/fair: Add 'group_misfit_task' load-balance type
sched/fair: Add sched_group per-CPU max capacity
sched/fair: Consider misfit tasks when load-balancing
sched/core: Disable SD_PREFER_SIBLING on asymmetric CPU capacity domains

Nicholas Mc Guire (1):
sched/completions/Documentation: Add recommendation for dynamic and ONSTACK completions

Peter Zijlstra (1):
sched/debug: Explicitly cast sched_feat() to bool

Rafael J. Wysocki (1):
sched/core: Fix comment regarding nr_iowait_cpu() and get_iowait_load()

Uwe Kleine-König (1):
sched/debug: Use symbolic names for task state constants

Valentin Schneider (5):
sched/fair: Kick nohz balance if rq->misfit_task_load
sched/fair: Change 'prefer_sibling' type to bool
sched/core: Change root_domain->overload type to int
sched/fair: Wrap rq->rd->overload accesses with READ/WRITE_ONCE()
sched/fair: Set rq->rd->overload when misfit

Vincent Guittot (3):
sched/numa: Remove unused code from update_numa_stats()
sched/numa: Remove unused numa_stats::nr_running field
sched/pelt: Fix warning and clean up IRQ PELT config

zhong jiang (1):
sched/topology: Make local variables static