[v2] sched/rt: Fix schedulable check with rt_group_sched=0 and cleanups

[PATCH v2 0/3] sched/rt: Fix schedulable check with rt_group_sched=0 and cleanups

Michal Koutný posted 3 patches 1 month, 4 weeks ago

Diff against v1 v3
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kernel/sched/rt.c | 40 +++++++---------------------------------
1 file changed, 7 insertions(+), 33 deletions(-)

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[PATCH v2 0/3] sched/rt: Fix schedulable check with rt_group_sched=0 and cleanups

Posted by Michal Koutný 1 month, 4 weeks ago

The crux is the first commit which fixes how sysctl
kernel.sched_rt_runtime_us changes are validated with
CONFIG_RT_GROUP_SCHED but rt_group_sched=0.
The rest are cleanups that occurred to me.

Signed-off-by: Michal Koutný <mkoutny@suse.com>
---
Changes in v2:
- Prateek's ifdef/locks suggestion
- Rebased on current torvalds/master
- Link to v1: https://lore.kernel.org/r/20260119-sched-rert_groups-v1-0-80c1e5269910@suse.com

---
Michal Koutný (3):
      sched/rt: Skip group schedulable check with rt_group_sched=0
      sched/rt: Move group schedulability check to sched_rt_global_validate()
      sched/rt: Cleanup global RT bandwidth functions

 kernel/sched/rt.c | 40 +++++++---------------------------------
 1 file changed, 7 insertions(+), 33 deletions(-)
---
base-commit: 9702969978695d9a699a1f34771580cdbb153b33
change-id: 20260119-sched-rert_groups-431e2d5d1c57

Best regards,
-- 
Michal Koutný <mkoutny@suse.com>

Re: [PATCH v2 0/3] sched/rt: Fix schedulable check with rt_group_sched=0 and cleanups

Posted by Michal Koutný 1 month, 1 week ago

On Tue, Feb 17, 2026 at 11:52:58AM +0100, Michal Koutný <mkoutny@suse.com> wrote:
> The crux is the first commit which fixes how sysctl
> kernel.sched_rt_runtime_us changes are validated with
> CONFIG_RT_GROUP_SCHED but rt_group_sched=0.
> The rest are cleanups that occurred to me.

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