From fa4bbc4ca5795fbf1303b98c924e51a21a920f14 Mon Sep 17 00:00:00 2001 From: Lai Jiangshan Date: Fri, 18 Mar 2011 12:08:29 +0800 Subject: [PATCH] perf,rcu: convert call_rcu(swevent_hlist_release_rcu) to kfree_rcu() 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 Acked-by: Peter Zijlstra Signed-off-by: Paul E. McKenney Reviewed-by: Josh Triplett --- kernel/perf_event.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/kernel/perf_event.c b/kernel/perf_event.c index 17a176f7ef11..b90d660fc875 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -5323,14 +5323,6 @@ 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); @@ -5339,7 +5331,7 @@ 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) -- 2.30.2