From 859dc4ec5a4321298d8978cb6eeb3e21a2eebab5 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 4 Sep 2024 10:24:59 -1000 Subject: [PATCH] sched: Expose css_tg() A new BPF extensible sched_class will use css_tg() in the init and exit paths to visit all task_groups by walking cgroups. v4: __setscheduler_prio() is already exposed. Dropped from this patch. v3: Dropped SCHED_CHANGE_BLOCK() as upstream is adding more generic cleanup mechanism. v2: Expose SCHED_CHANGE_BLOCK() too and update the description. Signed-off-by: Tejun Heo Reviewed-by: David Vernet Acked-by: Josh Don Acked-by: Hao Luo Acked-by: Barret Rhoden --- kernel/sched/core.c | 5 ----- kernel/sched/sched.h | 5 +++++ 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index df56301bfa97..b05705dd5e92 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -8942,11 +8942,6 @@ void sched_move_task(struct task_struct *tsk) } } -static inline struct task_group *css_tg(struct cgroup_subsys_state *css) -{ - return css ? container_of(css, struct task_group, css) : NULL; -} - static struct cgroup_subsys_state * cpu_cgroup_css_alloc(struct cgroup_subsys_state *parent_css) { diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 73ba0cfe4226..b052ce72cdcd 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -514,6 +514,11 @@ static inline int walk_tg_tree(tg_visitor down, tg_visitor up, void *data) return walk_tg_tree_from(&root_task_group, down, up, data); } +static inline struct task_group *css_tg(struct cgroup_subsys_state *css) +{ + return css ? container_of(css, struct task_group, css) : NULL; +} + extern int tg_nop(struct task_group *tg, void *data); #ifdef CONFIG_FAIR_GROUP_SCHED