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sched_ext: Merge branch 'for-6.16-fixes' into for-6.17

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Pull sched_ext/for-6.16-fixes to receive:

 c50784e99f ("sched_ext: Make scx_group_set_weight() always update tg->scx.weight")
 33796b9187 ("sched_ext, sched/core: Don't call scx_group_set_weight() prematurely from sched_create_group()")

which are needed to implement CPU bandwidth control interface support.

Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Tejun Heo
2025-06-20 17:01:21 -10:00
parent e4ee150fea 33796b9187
commit e4e149dd2f
10 changed files with 37 additions and 17 deletions
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17
kernel/sched/ext.c
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@@ -4056,6 +4056,11 @@ bool scx_can_stop_tick(struct rq *rq)
DEFINE_STATIC_PERCPU_RWSEM(scx_cgroup_rwsem);
static bool scx_cgroup_enabled;
void scx_tg_init(struct task_group *tg)
{
tg->scx_weight = CGROUP_WEIGHT_DFL;
}
int scx_tg_online(struct task_group *tg)
{
struct scx_sched *sch = scx_root;
@@ -4205,12 +4210,12 @@ void scx_group_set_weight(struct task_group *tg, unsigned long weight)
percpu_down_read(&scx_cgroup_rwsem);
if (scx_cgroup_enabled && tg->scx_weight != weight) {
if (SCX_HAS_OP(sch, cgroup_set_weight))
SCX_CALL_OP(sch, SCX_KF_UNLOCKED, cgroup_set_weight, NULL,
tg_cgrp(tg), weight);
tg->scx_weight = weight;
}
if (scx_cgroup_enabled && SCX_HAS_OP(sch, cgroup_set_weight) &&
tg->scx_weight != weight)
SCX_CALL_OP(sch, SCX_KF_UNLOCKED, cgroup_set_weight, NULL,
tg_cgrp(tg), weight);
tg->scx_weight = weight;
percpu_up_read(&scx_cgroup_rwsem);
}