Juri Lelli 9bcfe15278 sched/cpuset: Bring back cpuset_mutex ... commit 111cd11bbc upstream. Turns out percpu_cpuset_rwsem - commit 1243dc518c ("cgroup/cpuset: Convert cpuset_mutex to percpu_rwsem") - wasn't such a brilliant idea, as it has been reported to cause slowdowns in workloads that need to change cpuset configuration frequently and it is also not implementing priority inheritance (which causes troubles with realtime workloads). Convert percpu_cpuset_rwsem back to regular cpuset_mutex. Also grab it only for SCHED_DEADLINE tasks (other policies don't care about stable cpusets anyway). Signed-off-by: Juri Lelli <juri.lelli@redhat.com> Reviewed-by: Waiman Long <longman@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org> [ Conflict in kernel/cgroup/cpuset.c due to pulling new code/comments. Reject all new code. Remove BUG_ON() about rwsem that doesn't exist on mainline. ] Signed-off-by: Qais Yousef (Google) <qyousef@layalina.io> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-08-30 16:11:10 +02:00
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Makefile	…
autogroup.c	…
autogroup.h	…
build_policy.c	…
build_utility.c	…
clock.c	…
completion.c	…
core.c	sched/cpuset: Bring back cpuset_mutex	2023-08-30 16:11:10 +02:00
core_sched.c	…
cpuacct.c	…
cpudeadline.c	…
cpudeadline.h	…
cpufreq.c	…
cpufreq_schedutil.c	Revert "cpufreq: schedutil: Move max CPU capacity to sugov_policy"	2022-11-22 19:56:52 +01:00
cpupri.c	…
cpupri.h	…
cputime.c	…
deadline.c	sched/rt: Fix bad task migration for rt tasks	2023-05-11 23:03:32 +09:00
debug.c	- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in	2022-10-10 17:53:04 -07:00
fair.c	sched/fair: Remove capacity inversion detection	2023-08-23 17:52:41 +02:00
features.h	…
idle.c	…
isolation.c	…
loadavg.c	…
membarrier.c	…
pelt.c	…
pelt.h	…
psi.c	sched/psi: use kernfs polling functions for PSI trigger polling	2023-07-27 08:50:38 +02:00
rt.c	sched/rt: Fix bad task migration for rt tasks	2023-05-11 23:03:32 +09:00
sched-pelt.h	…
sched.h	sched/fair: Remove capacity inversion detection	2023-08-23 17:52:41 +02:00
smp.h	…
stats.c	…
stats.h	…
stop_task.c	…
swait.c	…
topology.c	…
wait.c	wait: Return number of exclusive waiters awaken	2023-03-10 09:34:34 +01:00
wait_bit.c	…