linux-stable/kernel/sched
Shrikanth Hegde 0ab44f03c5 sched/deadline: Use online cpus for validating runtime
[ Upstream commit 14672f059d ]

The ftrace selftest reported a failure because writing -1 to
sched_rt_runtime_us returns -EBUSY. This happens when the possible
CPUs are different from active CPUs.

Active CPUs are part of one root domain, while remaining CPUs are part
of def_root_domain. Since active cpumask is being used, this results in
cpus=0 when a non active CPUs is used in the loop.

Fix it by looping over the online CPUs instead for validating the
bandwidth calculations.

Signed-off-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Juri Lelli <juri.lelli@redhat.com>
Link: https://lore.kernel.org/r/20250306052954.452005-2-sshegde@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-04-10 14:29:42 +02:00
..
autogroup.c
autogroup.h
clock.c
completion.c
core.c
cpuacct.c
cpudeadline.c
cpudeadline.h
cpufreq_schedutil.c
cpufreq.c
cpupri.c
cpupri.h
cputime.c
deadline.c sched/deadline: Use online cpus for validating runtime 2025-04-10 14:29:42 +02:00
debug.c
fair.c
features.h
idle.c
isolation.c
loadavg.c
Makefile
membarrier.c
pelt.c
pelt.h
psi.c
rt.c
sched-pelt.h
sched.h
stats.c
stats.h
stop_task.c
swait.c
topology.c
wait_bit.c
wait.c