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| author | Tejun Heo <tj@kernel.org> | 2025-06-14 04:34:22 +0300 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2025-06-21 06:03:51 +0300 |
| commit | ddceadce63d9cb752c2472e220ded05cabaf7971 (patch) | |
| tree | a011e5b43cd6a369b2442009851a97dcc5e47e92 /init | |
| parent | 6e6558a6bc418f1478c5dc8609d03805364e0cb9 (diff) | |
| download | linux-ddceadce63d9cb752c2472e220ded05cabaf7971.tar.xz | |
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 'init')
| -rw-r--r-- | init/Kconfig | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig index af4c2f085455..baf59d2a20a2 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1065,6 +1065,9 @@ if CGROUP_SCHED config GROUP_SCHED_WEIGHT def_bool n +config GROUP_SCHED_BANDWIDTH + def_bool n + config FAIR_GROUP_SCHED bool "Group scheduling for SCHED_OTHER" depends on CGROUP_SCHED @@ -1074,6 +1077,7 @@ config FAIR_GROUP_SCHED config CFS_BANDWIDTH bool "CPU bandwidth provisioning for FAIR_GROUP_SCHED" depends on FAIR_GROUP_SCHED + select GROUP_SCHED_BANDWIDTH default n help This option allows users to define CPU bandwidth rates (limits) for @@ -1108,6 +1112,7 @@ config EXT_GROUP_SCHED bool depends on SCHED_CLASS_EXT && CGROUP_SCHED select GROUP_SCHED_WEIGHT + select GROUP_SCHED_BANDWIDTH default y endif #CGROUP_SCHED |