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| author | Lai Jiangshan <laijs@cn.fujitsu.com> | 2011-03-18 12:08:29 +0800 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2011-05-07 22:51:09 -0700 |
| commit | fa4bbc4ca5795fbf1303b98c924e51a21a920f14 (patch) | |
| tree | 91f504045a57d1c88b68a5a0102de01008828232 /kernel | |
| parent | cb796ff338db9f064f4ecb7d41898e8bedcad4d9 (diff) | |
| download | linux-fa4bbc4ca5795fbf1303b98c924e51a21a920f14.tar.bz2 | |
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 <laijs@cn.fujitsu.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | 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 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) |