Commit 025cea99 authored by Lai Jiangshan's avatar Lai Jiangshan Committed by Paul E. McKenney

cgroup,rcu: convert call_rcu(__free_css_id_cb) to kfree_rcu()

The rcu callback __free_css_id_cb() just calls a kfree(),
so we use kfree_rcu() instead of the call_rcu(__free_css_id_cb).
Signed-off-by: default avatarLai Jiangshan <laijs@cn.fujitsu.com>
Acked-by: default avatarPaul Menage <menage@google.com>
Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: default avatarJosh Triplett <josh@joshtriplett.org>
parent f2da1c40
......@@ -4610,14 +4610,6 @@ bool css_is_ancestor(struct cgroup_subsys_state *child,
return ret;
}
static void __free_css_id_cb(struct rcu_head *head)
{
struct css_id *id;
id = container_of(head, struct css_id, rcu_head);
kfree(id);
}
void free_css_id(struct cgroup_subsys *ss, struct cgroup_subsys_state *css)
{
struct css_id *id = css->id;
......@@ -4632,7 +4624,7 @@ void free_css_id(struct cgroup_subsys *ss, struct cgroup_subsys_state *css)
spin_lock(&ss->id_lock);
idr_remove(&ss->idr, id->id);
spin_unlock(&ss->id_lock);
call_rcu(&id->rcu_head, __free_css_id_cb);
kfree_rcu(id, rcu_head);
}
EXPORT_SYMBOL_GPL(free_css_id);
......
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