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authorTejun Heo <[email protected]>2024-09-04 10:24:59 -1000
committerTejun Heo <[email protected]>2024-09-04 10:24:59 -1000
commit859dc4ec5a4321298d8978cb6eeb3e21a2eebab5 (patch)
tree9dcf0a9b1d0fa3fe438f180851f76f0184b12fa2
parenta8532fac7b5d27b8d62008a89593dccb6f9786ef (diff)
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 <[email protected]> Reviewed-by: David Vernet <[email protected]> Acked-by: Josh Don <[email protected]> Acked-by: Hao Luo <[email protected]> Acked-by: Barret Rhoden <[email protected]>
-rw-r--r--kernel/sched/core.c5
-rw-r--r--kernel/sched/sched.h5
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