diff mbox

[tip/core/rcu,66/86] perf,rcu: convert call_rcu(swevent_hlist_release_rcu) to kfree_rcu()

Message ID 1304256126-26015-66-git-send-email-paulmck@linux.vnet.ibm.com
State New
Headers show

Commit Message

Paul E. McKenney May 1, 2011, 1:21 p.m. UTC 
From: Lai Jiangshan <laijs@cn.fujitsu.com>

The rcu callback swevent_hlist_release_rcu() just calls a kfree(),
so we use kfree_rcu() instead of the call_rcu(swevent_hlist_release_rcu).

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 kernel/perf_event.c |   10 +---------
 1 files changed, 1 insertions(+), 9 deletions(-)
diff mbox

Patch

diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 865c6f7..6536a03 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -5311,14 +5311,6 @@  swevent_hlist_deref(struct swevent_htable *swhash)
 					 lockdep_is_held(&swhash->hlist_mutex));
 }
 
-static void swevent_hlist_release_rcu(struct rcu_head *rcu_head)
-{
-	struct swevent_hlist *hlist;
-
-	hlist = container_of(rcu_head, struct swevent_hlist, rcu_head);
-	kfree(hlist);
-}
-
 static void swevent_hlist_release(struct swevent_htable *swhash)
 {
 	struct swevent_hlist *hlist = swevent_hlist_deref(swhash);
@@ -5327,7 +5319,7 @@  static void swevent_hlist_release(struct swevent_htable *swhash)
 		return;
 
 	rcu_assign_pointer(swhash->swevent_hlist, NULL);
-	call_rcu(&hlist->rcu_head, swevent_hlist_release_rcu);
+	kfree_rcu(hlist, rcu_head);
 }
 
 static void swevent_hlist_put_cpu(struct perf_event *event, int cpu)