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authorLai Jiangshan <laijs@cn.fujitsu.com>2011-03-15 17:56:10 +0800
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2011-05-07 22:50:47 -0700
commit025cea99db3fb110ebc8ede5ff647833fab9574f (patch)
treecfef202674eaf06953405b03b000e77251287099 /kernel/cgroup.c
parentf2da1c40dc003939f616f27a103b2592f1424b07 (diff)
downloadlinux-025cea99db3fb110ebc8ede5ff647833fab9574f.tar.bz2
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: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: Paul Menage <menage@google.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Diffstat (limited to 'kernel/cgroup.c')
-rw-r--r--kernel/cgroup.c10
1 files changed, 1 insertions, 9 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 20451ce7195f..909a35510af5 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -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);