From: Tejun Heo <tj@kernel.org>
To: linux-kernel@vger.kernel.org, sched-ext@lists.linux.dev
Cc: void@manifault.com, arighi@nvidia.com, changwoo@igalia.com,
emil@etsalapatis.com, hannes@cmpxchg.org, mkoutny@suse.com,
cgroups@vger.kernel.org, Tejun Heo <tj@kernel.org>,
Peter Zijlstra <peterz@infradead.org>
Subject: [PATCH 02/34] sched_ext: Add @kargs to scx_fork()
Date: Tue, 24 Feb 2026 19:00:37 -1000 [thread overview]
Message-ID: <20260225050109.1070059-3-tj@kernel.org> (raw)
In-Reply-To: <20260225050109.1070059-1-tj@kernel.org>
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>
Cc: Peter Zijlstra <peterz@infradead.org>
---
kernel/sched/core.c | 2 +-
kernel/sched/ext.c | 2 +-
kernel/sched/ext.h | 4 ++--
3 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 759777694c78..7ba80220a276 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -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)
diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c
index 25b9b488ed1f..edc88c1f744d 100644
--- a/kernel/sched/ext.c
+++ b/kernel/sched/ext.c
@@ -3167,7 +3167,7 @@ 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);
diff --git a/kernel/sched/ext.h b/kernel/sched/ext.h
index 43429b33e52c..0b7fc46aee08 100644
--- a/kernel/sched/ext.h
+++ b/kernel/sched/ext.h
@@ -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; }
--
2.53.0
next prev parent reply other threads:[~2026-02-25 5:01 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-25 5:00 [PATCHSET v2 sched_ext/for-7.1] sched_ext: Implement cgroup sub-scheduler support Tejun Heo
2026-02-25 5:00 ` [PATCH 01/34] sched_ext: Implement cgroup subtree iteration for scx_task_iter Tejun Heo
2026-02-25 5:00 ` Tejun Heo [this message]
2026-02-25 5:00 ` [PATCH 03/34] sched/core: Swap the order between sched_post_fork() and cgroup_post_fork() Tejun Heo
2026-02-25 5:00 ` [PATCH 04/34] cgroup: Expose some cgroup helpers Tejun Heo
2026-02-25 5:00 ` [PATCH 05/34] sched_ext: Update p->scx.disallow warning in scx_init_task() Tejun Heo
2026-02-25 5:00 ` [PATCH 06/34] sched_ext: Reorganize enable/disable path for multi-scheduler support Tejun Heo
2026-02-25 5:00 ` [PATCH 07/34] sched_ext: Introduce cgroup sub-sched support Tejun Heo
2026-02-26 15:37 ` Andrea Righi
2026-02-27 20:14 ` Tejun Heo
2026-02-26 15:52 ` Andrea Righi
2026-02-27 19:51 ` Tejun Heo
2026-02-27 20:04 ` Tejun Heo
2026-02-25 5:00 ` [PATCH 08/34] sched_ext: Introduce scx_task_sched[_rcu]() Tejun Heo
2026-02-25 5:00 ` [PATCH 09/34] sched_ext: Introduce scx_prog_sched() Tejun Heo
2026-02-25 5:00 ` [PATCH 10/34] sched_ext: Enforce scheduling authority in dispatch and select_cpu operations Tejun Heo
2026-02-25 5:00 ` [PATCH 11/34] sched_ext: Enforce scheduler ownership when updating slice and dsq_vtime Tejun Heo
2026-02-26 15:13 ` Andrea Righi
2026-02-27 22:25 ` Tejun Heo
2026-02-27 23:50 ` Andrea Righi
2026-02-25 5:00 ` [PATCH 12/34] sched_ext: scx_dsq_move() should validate the task belongs to the right scheduler Tejun Heo
2026-02-25 5:00 ` [PATCH 13/34] sched_ext: Refactor task init/exit helpers Tejun Heo
2026-02-27 6:55 ` Andrea Righi
2026-02-27 19:50 ` Tejun Heo
2026-02-25 5:00 ` [PATCH 14/34] sched_ext: Make scx_prio_less() handle multiple schedulers Tejun Heo
2026-02-25 5:00 ` [PATCH 15/34] sched_ext: Move default slice to per-scheduler field Tejun Heo
2026-02-25 5:00 ` [PATCH 16/34] sched_ext: Move aborting flag " Tejun Heo
2026-02-25 5:00 ` [PATCH 17/34] sched_ext: Move bypass_dsq into scx_sched_pcpu Tejun Heo
2026-02-25 5:00 ` [PATCH 18/34] sched_ext: Move bypass state into scx_sched Tejun Heo
2026-02-25 5:00 ` [PATCH 19/34] sched_ext: Prepare bypass mode for hierarchical operation Tejun Heo
2026-02-25 5:00 ` [PATCH 20/34] sched_ext: Factor out scx_dispatch_sched() Tejun Heo
2026-02-25 5:00 ` [PATCH 21/34] sched_ext: When calling ops.dispatch() @prev must be on the same scx_sched Tejun Heo
2026-02-25 5:00 ` [PATCH 22/34] sched_ext: Separate bypass dispatch enabling from bypass depth tracking Tejun Heo
2026-02-25 5:00 ` [PATCH 23/34] sched_ext: Implement hierarchical bypass mode Tejun Heo
2026-02-25 5:00 ` [PATCH 24/34] sched_ext: Dispatch from all scx_sched instances Tejun Heo
2026-02-25 5:01 ` [PATCH 25/34] sched_ext: Move scx_dsp_ctx and scx_dsp_max_batch into scx_sched Tejun Heo
2026-02-25 5:01 ` [PATCH 26/34] sched_ext: Make watchdog sub-sched aware Tejun Heo
2026-02-25 5:01 ` [PATCH 27/34] sched_ext: Convert scx_dump_state() spinlock to raw spinlock Tejun Heo
2026-02-25 5:01 ` [PATCH 28/34] sched_ext: Support dumping multiple schedulers and add scheduler identification Tejun Heo
2026-02-25 5:01 ` [PATCH 29/34] sched_ext: Implement cgroup sub-sched enabling and disabling Tejun Heo
2026-02-25 5:01 ` [PATCH 30/34] sched_ext: Add scx_sched back pointer to scx_sched_pcpu Tejun Heo
2026-02-25 5:01 ` [PATCH 31/34] sched_ext: Make scx_bpf_reenqueue_local() sub-sched aware Tejun Heo
2026-02-25 5:01 ` [PATCH 32/34] sched_ext: Factor out scx_link_sched() and scx_unlink_sched() Tejun Heo
2026-02-25 5:01 ` [PATCH 33/34] sched_ext: Add rhashtable lookup for sub-schedulers Tejun Heo
2026-02-25 5:01 ` [PATCH 34/34] sched_ext: Add basic building blocks for nested sub-scheduler dispatching Tejun Heo
2026-02-25 5:14 ` [PATCHSET v2 sched_ext/for-7.1] sched_ext: Implement cgroup sub-scheduler support Tejun Heo
-- strict thread matches above, loose matches on Subject: below --
2026-03-04 22:00 [PATCHSET v3 " Tejun Heo
2026-03-04 22:00 ` [PATCH 02/34] sched_ext: Add @kargs to scx_fork() Tejun Heo
2026-02-25 5:01 [PATCHSET v2 sched_ext/for-7.1] sched_ext: Implement cgroup sub-scheduler support Tejun Heo
2026-02-25 5:01 ` [PATCH 02/34] sched_ext: Add @kargs to scx_fork() Tejun Heo
2026-01-21 23:11 [PATCHSET v1 sched_ext/for-6.20] sched_ext: Implement cgroup sub-scheduler support Tejun Heo
2026-01-21 23:11 ` [PATCH 02/34] sched_ext: Add @kargs to scx_fork() Tejun Heo
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