css release is planned to do more and would require process context. Bounce it through css->destroy_work.
Signed-off-by: Tejun Heo <[email protected]> --- kernel/cgroup.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/kernel/cgroup.c b/kernel/cgroup.c index bb67acb..b382383 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -4125,10 +4125,10 @@ static void css_free_rcu_fn(struct rcu_head *rcu_head) queue_work(cgroup_destroy_wq, &css->destroy_work); } -static void css_release(struct percpu_ref *ref) +static void css_release_work_fn(struct work_struct *work) { struct cgroup_subsys_state *css = - container_of(ref, struct cgroup_subsys_state, refcnt); + container_of(work, struct cgroup_subsys_state, destroy_work); struct cgroup_subsys *ss = css->ss; cgroup_idr_remove(&ss->css_idr, css->id); @@ -4136,6 +4136,15 @@ static void css_release(struct percpu_ref *ref) call_rcu(&css->rcu_head, css_free_rcu_fn); } +static void css_release(struct percpu_ref *ref) +{ + struct cgroup_subsys_state *css = + container_of(ref, struct cgroup_subsys_state, refcnt); + + INIT_WORK(&css->destroy_work, css_release_work_fn); + queue_work(cgroup_destroy_wq, &css->destroy_work); +} + static void init_and_link_css(struct cgroup_subsys_state *css, struct cgroup_subsys *ss, struct cgroup *cgrp) { -- 1.9.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
