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sched_ext: Add @kargs to scx_fork()

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Make sched_cgroup_fork() pass @kargs to scx_fork(). This will be used to
determine @p's cgroup for cgroup sub-sched support.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Andrea Righi <arighi@nvidia.com>
Cc: Peter Zijlstra <peterz@infradead.org>
This commit is contained in:
Tejun Heo 2026-03-06 07:58:02 -10:00
parent b0e4c2f8a0
commit e3715e3977
3 changed files with 4 additions and 4 deletions
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2
kernel/sched/core.c
View File

@ -4721,7 +4721,7 @@ int sched_cgroup_fork(struct task_struct *p, struct kernel_clone_args *kargs)
p->sched_class->task_fork(p);
raw_spin_unlock_irqrestore(&p->pi_lock, flags);
return scx_fork(p);
return scx_fork(p, kargs);
}
void sched_cancel_fork(struct task_struct *p)

2
kernel/sched/ext.c
View File

@ -3171,7 +3171,7 @@ void scx_pre_fork(struct task_struct *p)
percpu_down_read(&scx_fork_rwsem);
}
int scx_fork(struct task_struct *p)
int scx_fork(struct task_struct *p, struct kernel_clone_args *kargs)
{
percpu_rwsem_assert_held(&scx_fork_rwsem);

4
kernel/sched/ext.h
View File

@ -11,7 +11,7 @@
void scx_tick(struct rq *rq);
void init_scx_entity(struct sched_ext_entity *scx);
void scx_pre_fork(struct task_struct *p);
int scx_fork(struct task_struct *p);
int scx_fork(struct task_struct *p, struct kernel_clone_args *kargs);
void scx_post_fork(struct task_struct *p);
void scx_cancel_fork(struct task_struct *p);
bool scx_can_stop_tick(struct rq *rq);
@ -44,7 +44,7 @@ bool scx_prio_less(const struct task_struct *a, const struct task_struct *b,
static inline void scx_tick(struct rq *rq) {}
static inline void scx_pre_fork(struct task_struct *p) {}
static inline int scx_fork(struct task_struct *p) { return 0; }
static inline int scx_fork(struct task_struct *p, struct kernel_clone_args *kargs) { return 0; }
static inline void scx_post_fork(struct task_struct *p) {}
static inline void scx_cancel_fork(struct task_struct *p) {}
static inline u32 scx_cpuperf_target(s32 cpu) { return 0; }