diff options
| author | Tejun Heo <tj@kernel.org> | 2025-06-13 15:34:22 -1000 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2025-06-20 17:03:51 -1000 |
| commit | ddceadce63d9cb752c2472e220ded05cabaf7971 (patch) | |
| tree | a011e5b43cd6a369b2442009851a97dcc5e47e92 /kernel/sched/ext.h | |
| parent | 6e6558a6bc418f1478c5dc8609d03805364e0cb9 (diff) | |
sched_ext: Add support for cgroup bandwidth control interface
From 077814f57f8acce13f91dc34bbd2b7e4911fbf25 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Fri, 13 Jun 2025 15:06:47 -1000
- Add CONFIG_GROUP_SCHED_BANDWIDTH which is selected by both
CONFIG_CFS_BANDWIDTH and EXT_GROUP_SCHED.
- Put bandwidth control interface files for both cgroup v1 and v2 under
CONFIG_GROUP_SCHED_BANDWIDTH.
- Update tg_bandwidth() to fetch configuration parameters from fair if
CONFIG_CFS_BANDWIDTH, SCX otherwise.
- Update tg_set_bandwidth() to update the parameters for both fair and SCX.
- Add bandwidth control parameters to struct scx_cgroup_init_args.
- Add sched_ext_ops.cgroup_set_bandwidth() which is invoked on bandwidth
control parameter updates.
- Update scx_qmap and maximal selftest to test the new feature.
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'kernel/sched/ext.h')
| -rw-r--r-- | kernel/sched/ext.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/sched/ext.h b/kernel/sched/ext.h index e7bcaa02ea56..292bb41a242e 100644 --- a/kernel/sched/ext.h +++ b/kernel/sched/ext.h @@ -104,6 +104,7 @@ void scx_cgroup_finish_attach(void); void scx_cgroup_cancel_attach(struct cgroup_taskset *tset); void scx_group_set_weight(struct task_group *tg, unsigned long cgrp_weight); void scx_group_set_idle(struct task_group *tg, bool idle); +void scx_group_set_bandwidth(struct task_group *tg, u64 period_us, u64 quota_us, u64 burst_us); #else /* CONFIG_EXT_GROUP_SCHED */ static inline void scx_tg_init(struct task_group *tg) {} static inline int scx_tg_online(struct task_group *tg) { return 0; } @@ -114,5 +115,6 @@ static inline void scx_cgroup_finish_attach(void) {} static inline void scx_cgroup_cancel_attach(struct cgroup_taskset *tset) {} static inline void scx_group_set_weight(struct task_group *tg, unsigned long cgrp_weight) {} static inline void scx_group_set_idle(struct task_group *tg, bool idle) {} +static inline void scx_group_set_bandwidth(struct task_group *tg, u64 period_us, u64 quota_us, u64 burst_us) {} #endif /* CONFIG_EXT_GROUP_SCHED */ #endif /* CONFIG_CGROUP_SCHED */ |