Qais Yousef d362a03d92 sched/fair: Fixes for capacity inversion detection ...

commit: da07d2f9c1 upstream.

Traversing the Perf Domains requires rcu_read_lock() to be held and is
conditional on sched_energy_enabled(). Ensure right protections applied.

Also skip capacity inversion detection for our own pd; which was an
error.

Fixes: 44c7b80bff ("sched/fair: Detect capacity inversion")
Reported-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Qais Yousef (Google) <qyousef@layalina.io>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lore.kernel.org/r/20230112122708.330667-3-qyousef@layalina.io
(cherry picked from commit da07d2f9c1)
Signed-off-by: Qais Yousef (Google) <qyousef@layalina.io>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-04-26 14:28:42 +02:00

..

autogroup.c

sched/all: Change all BUG_ON() instances in the scheduler to WARN_ON_ONCE()

2022-08-12 11:25:10 +02:00

autogroup.h

sched/headers: Add header guard to kernel/sched/stats.h and kernel/sched/autogroup.h

2022-02-23 08:22:00 +01:00

build_policy.c

sched: Fix missing prototype warnings

2022-05-01 10:03:43 +02:00

build_utility.c

sched: Fix missing prototype warnings

2022-05-01 10:03:43 +02:00

clock.c

sched/clock: Use try_cmpxchg64 in sched_clock_{local,remote}

2022-05-19 23:46:09 +02:00

completion.c

sched/completion: Add wait_for_completion_state()

2022-09-07 21:53:49 +02:00

core_sched.c

sched: Rename task_running() to task_on_cpu()

2022-09-07 21:53:47 +02:00

core.c

sched_getaffinity: don't assume 'cpumask_size()' is fully initialized

2023-04-06 12:10:40 +02:00

cpuacct.c

Merge branch 'sched/fast-headers' into sched/core

2022-03-15 09:05:05 +01:00

cpudeadline.c

sched/core: Introduce sched_asym_cpucap_active()

2022-08-02 12:32:45 +02:00

cpudeadline.h

sched/headers: Simplify and clean up header usage in the scheduler

2018-03-04 12:39:29 +01:00

cpufreq_schedutil.c

Revert "cpufreq: schedutil: Move max CPU capacity to sugov_policy"

2022-11-22 19:56:52 +01:00

cpufreq.c

sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there

2022-02-23 10:58:33 +01:00

cpupri.c

sched/all: Change all BUG_ON() instances in the scheduler to WARN_ON_ONCE()

2022-08-12 11:25:10 +02:00

cpupri.h

sched/cpupri: Add CPUPRI_HIGHER

2020-10-29 11:00:30 +01:00

cputime.c

sched/core: add forced idle accounting for cgroups

2022-07-04 09:23:07 +02:00

deadline.c

sched: Introduce struct balance_callback to avoid CFI mismatches

2022-10-17 16:41:25 +02:00

debug.c

Merge tag 'mm-stable-2022-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2022-10-10 17:53:04 -07:00

fair.c

sched/fair: Fixes for capacity inversion detection

2023-04-26 14:28:42 +02:00

features.h

sched/fair: Introduce SIS_UTIL to search idle CPU based on sum of util_avg

2022-06-28 09:08:30 +02:00

idle.c

context_tracking: Take idle eqs entrypoints over RCU

2022-07-05 13:32:16 -07:00

isolation.c

sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there

2022-02-23 10:58:33 +01:00

loadavg.c

sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there

2022-02-23 10:58:33 +01:00

Makefile

sched/headers: Introduce kernel/sched/build_policy.c and build multiple .c files there

2022-02-23 10:58:33 +01:00

membarrier.c

sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there

2022-02-23 10:58:33 +01:00

pelt.c

sched/headers: Introduce kernel/sched/build_policy.c and build multiple .c files there

2022-02-23 10:58:33 +01:00

pelt.h

sched/fair: Decay task PELT values during wakeup migration

2022-06-28 09:17:46 +02:00

psi.c

sched/psi: Stop relying on timer_pending() for poll_work rescheduling

2023-02-25 11:25:39 +01:00

rt.c

sched/rt: pick_next_rt_entity(): check list_entry

2023-03-10 09:32:45 +01:00

sched-pelt.h

sched/fair: Fix "runnable_avg_yN_inv" not used warnings

2019-06-17 12:15:58 +02:00

sched.h

sched/fair: Detect capacity inversion

2023-04-26 14:28:41 +02:00

smp.h

smp: Rename flush_smp_call_function_from_idle()

2022-05-01 10:03:43 +02:00

stats.c

sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there

2022-02-23 10:58:33 +01:00

stats.h

sched/psi: Add PSI_IRQ to track IRQ/SOFTIRQ pressure

2022-09-09 11:08:32 +02:00

stop_task.c

sched: Add update_current_exec_runtime helper

2022-08-27 00:05:35 +02:00

swait.c

sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there

2022-02-23 10:58:33 +01:00

topology.c

sched/numa: Adjust imb_numa_nr to a better approximation of memory channels

2022-06-13 10:30:00 +02:00

wait_bit.c

wait_on_bit: add an acquire memory barrier

2022-08-26 09:30:25 -07:00

wait.c

wait: Return number of exclusive waiters awaken

2023-03-10 09:34:34 +01:00