Juri Lelli ac31ba7430 sched/deadline: Fix accounting after global limits change ...

[ Upstream commit 440989c10f ]

A global limits change (sched_rt_handler() logic) currently leaves stale
and/or incorrect values in variables related to accounting (e.g.
extra_bw).

Properly clean up per runqueue variables before implementing the change
and rebuild scheduling domains (so that accounting is also properly
restored) after such a change is complete.

Reported-by: Marcel Ziswiler <marcel.ziswiler@codethink.co.uk>
Signed-off-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Marcel Ziswiler <marcel.ziswiler@codethink.co.uk> # nuc & rock5b
Link: https://lore.kernel.org/r/20250627115118.438797-4-juri.lelli@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

2025-08-28 16:24:20 +02:00

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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_sched.c

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core.c

sched: Add wrapper for get_wchan() to keep task blocked

2025-08-28 16:24:03 +02:00

cpuacct.c

sched/cpuacct: Optimize away RCU read lock

2023-10-06 13:18:19 +02:00

cpudeadline.c

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cpudeadline.h

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cpufreq_schedutil.c

cpufreq/sched: Fix the usage of CPUFREQ_NEED_UPDATE_LIMITS

2025-05-02 07:44:11 +02:00

cpufreq.c

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cpupri.c

sched/rt: Fix live lock between select_fallback_rq() and RT push

2023-10-06 13:18:22 +02:00

cpupri.h

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cputime.c

sched/cputime: Fix mul_u64_u64_div_u64() precision for cputime

2024-08-19 05:45:39 +02:00

deadline.c

sched/deadline: Fix accounting after global limits change

2025-08-28 16:24:20 +02:00

debug.c

sched: Fix DEBUG && !SCHEDSTATS warn

2023-05-11 23:00:40 +09:00

fair.c

sched/fair: Fix potential memory corruption in child_cfs_rq_on_list

2025-03-13 12:51:07 +01:00

features.h

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idle.c

Revert "kernel/sched: Modify initial boot task idle setup"

2023-10-19 23:05:38 +02:00

isolation.c

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loadavg.c

sched: Change nr_uninterruptible type to unsigned long

2025-08-28 16:24:02 +02:00

Makefile

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membarrier.c

sched/membarrier: reduce the ability to hammer on sys_membarrier

2024-02-23 08:55:14 +01:00

pelt.c

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pelt.h

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psi.c

sched/psi: Fix use-after-free in ep_remove_wait_queue()

2023-02-22 12:57:06 +01:00

rt.c

sched/deadline: Fix accounting after global limits change

2025-08-28 16:24:20 +02:00

sched-pelt.h

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sched.h

sched: Change nr_uninterruptible type to unsigned long

2025-08-28 16:24:02 +02:00

smp.h

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stats.c

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stats.h

sched/psi: Use task->psi_flags to clear in CPU migration

2025-03-13 12:49:52 +01:00

stop_task.c

sched: Make struct sched_statistics independent of fair sched class

2023-05-11 23:00:34 +09:00

swait.c

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topology.c

sched/fair: Allow disabling sched_balance_newidle with sched_relax_domain_level

2024-06-16 13:39:34 +02:00

wait_bit.c

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wait.c

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