Re: [PATCH 03/17] cgroup, rcu: convert call_rcu(__free_css_id_cb) to kfree_rcu()
From: Paul Menage <hidden>
Date: 2011-03-15 20:04:33
Also in:
linux-nfs
2011/3/15 Lai Jiangshan [off-list ref]:
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 <redacted>
Acked-by: Paul Menage <redacted>
quoted hunk
--- kernel/cgroup.c | 10 +--------- 1 files changed, 1 insertions(+), 9 deletions(-)diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 5c83c91..b7d3f6d 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c@@ -4612,14 +4612,6 @@ 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;@@ -4634,7 +4626,7 @@ 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); -- 1.7.4