[PATCH tip/core/rcu 71/86] net,rcu: convert call_rcu(kfree_tid_tx) to kfree_rcu()

Paul E. McKenney
2011-05-01T13:25:28Z

From: Lai Jiangshan <laijs@cn.fujitsu.com>

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

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: "John W. Linville" <linville@tuxdriver.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: "David S. Miller" <davem@davemloft.net>
---
net/mac80211/agg-tx.c | 14 +++-----------
1 files changed, 3 insertions(+), 11 deletions(-)

diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 63d852c..53defaf 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -136,14 +136,6 @@ void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u1
ieee80211_tx_skb(sdata, skb);
}

-static void kfree_tid_tx(struct rcu_head *rcu_head)
-{
- struct tid_ampdu_tx *tid_tx =
- container_of(rcu_head, struct tid_ampdu_tx, rcu_head);
-
- kfree(tid_tx);
-}
-
int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
enum ieee80211_back_parties initiator,
bool tx)
@@ -163,7 +155,7 @@ int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
/* not even started yet! */
rcu_assign_pointer(sta->ampdu_mlme.tid_tx[tid], NULL);
spin_unlock_bh(&sta->lock);
- call_rcu(&tid_tx->rcu_head, kfree_tid_tx);
+ kfree_rcu(tid_tx, rcu_head);
return 0;
}

@@ -322,7 +314,7 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
spin_unlock_bh(&sta->lock);

ieee80211_wake_queue_agg(local, tid);
- call_rcu(&tid_tx->rcu_head, kfree_tid_tx);
+ kfree_rcu(tid_tx, rcu_head);
return;
}

@@ -701,7 +693,7 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid)

ieee80211_agg_splice_finish(local, tid);

- call_rcu(&tid_tx->rcu_head, kfree_tid_tx);
+ kfree_rcu(tid_tx, rcu_head);

unlock_sta:
spin_unlock_bh(&sta->lock);
--
1.7.3.2