cgroup: Expose some cgroup helpers

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Expose the following through cgroup.h:

- cgroup_on_dfl()
- cgroup_is_dead()
- cgroup_for_each_live_child()
- cgroup_for_each_live_descendant_pre()
- cgroup_for_each_live_descendant_post()

Until now, these didn't need to be exposed because controllers only cared
about the css hierarchy. The planned sched_ext hierarchical scheduler
support will be based on the default cgroup hierarchy, which is in line
with the existing BPF cgroup support, and thus needs these exposed.

Signed-off-by: Tejun Heo <tj@kernel.org>

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This commit is contained in:

Tejun Heo 2026-03-04 11:26:47 -10:00

parent 5ee8dbf546

commit 5b30afc20b

3 changed files with 63 additions and 63 deletions

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65

include/linux/cgroup.h

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6

kernel/cgroup/cgroup-internal.h

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55

kernel/cgroup/cgroup.c

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