Vincent Guittot d71744b5c1 sched/fair: Fix O(nr_cgroups) in the load balancing path ...

commit 039ae8bcf7 upstream.

This re-applies the commit reverted here:

  commit c40f7d74c7 ("sched/fair: Fix infinite loop in update_blocked_averages() by reverting a9e7f6544b9c")

I.e. now that cfs_rq can be safely removed/added in the list, we can re-apply:

 commit a9e7f6544b ("sched/fair: Fix O(nr_cgroups) in load balance path")

Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: sargun@sargun.me
Cc: tj@kernel.org
Cc: xiexiuqi@huawei.com
Cc: xiezhipeng1@huawei.com
Link: https://lkml.kernel.org/r/1549469662-13614-3-git-send-email-vincent.guittot@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Vishnu Rangayyan <vishnu.rangayyan@apple.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2020-03-05 16:42:21 +01:00

..

autogroup.c

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autogroup.h

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clock.c

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completion.c

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core.c

sched/core: Avoid spurious lock dependencies

2019-12-13 08:51:04 +01:00

cpuacct.c

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cpudeadline.c

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cpudeadline.h

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cpufreq_schedutil.c

cpufreq: Avoid leaving stale IRQ work items during CPU offline

2019-12-31 16:36:22 +01:00

cpufreq.c

cpufreq: Avoid leaving stale IRQ work items during CPU offline

2019-12-31 16:36:22 +01:00

cpupri.c

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cpupri.h

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cputime.c

sched/vtime: Fix guest/system mis-accounting on task switch

2019-11-06 13:06:01 +01:00

deadline.c

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debug.c

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fair.c

sched/fair: Fix O(nr_cgroups) in the load balancing path

2020-03-05 16:42:21 +01:00

features.h

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idle.c

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isolation.c

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loadavg.c

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Makefile

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membarrier.c

sched/membarrier: Fix private expedited registration check

2019-10-11 18:21:22 +02:00

pelt.c

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pelt.h

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rt.c

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sched-pelt.h

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sched.h

sched/debug: Explicitly cast sched_feat() to bool

2019-11-20 18:46:13 +01:00

stats.c

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stats.h

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stop_task.c

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swait.c

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topology.c

sched/topology: Fix off by one bug

2019-12-01 09:17:16 +01:00

wait_bit.c

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wait.c

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