The nvmet invokes the cgroup_e_css for each bio and under the rcu protection. Signed-off-by: Peng Yu Assisted-by: Claude:claude-fable-5 [Claude Code] Assisted-by: Claude:claude-opus-5-5 [Claude Code] --- kernel/cgroup/cgroup.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c index 69b0f0cf2f3e..5a1708ed6b23 100644 --- a/kernel/cgroup/cgroup.c +++ b/kernel/cgroup/cgroup.c @@ -554,6 +554,7 @@ struct cgroup_subsys_state *cgroup_e_css(struct cgroup *cgrp, return rcu_dereference_check(cgrp->e_css[ss->id], lockdep_is_held(&cgroup_mutex)); } +EXPORT_SYMBOL_GPL(cgroup_e_css); /** * cgroup_get_e_css - get a cgroup's effective css for the specified subsystem -- 2.53.0