| From | "Paul E. McKenney" <> | Subject | [PATCH tip/core/rcu 66/86] perf,rcu: convert call_rcu(swevent_hlist_release_rcu) to kfree_rcu() | Date | Sun, 1 May 2011 06:21:46 -0700 |
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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 --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) -- 1.7.3.2
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