From patchwork Sun May 1 13:21:51 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Paul E. McKenney" X-Patchwork-Id: 1298 Return-Path: Delivered-To: unknown Received: from imap.gmail.com (74.125.159.109) by localhost6.localdomain6 with IMAP4-SSL; 08 Jun 2011 14:50:46 -0000 Delivered-To: patches@linaro.org Received: by 10.224.2.73 with SMTP id 9cs230909qai; Sun, 1 May 2011 06:22:36 -0700 (PDT) Received: by 10.91.136.15 with SMTP id o15mr5873219agn.155.1304256155774; Sun, 01 May 2011 06:22:35 -0700 (PDT) Received: from e5.ny.us.ibm.com (e5.ny.us.ibm.com [32.97.182.145]) by mx.google.com with ESMTPS id m5si6568165ann.58.2011.05.01.06.22.35 (version=TLSv1/SSLv3 cipher=OTHER); Sun, 01 May 2011 06:22:35 -0700 (PDT) Received-SPF: pass (google.com: domain of paulmck@linux.vnet.ibm.com designates 32.97.182.145 as permitted sender) client-ip=32.97.182.145; Authentication-Results: mx.google.com; spf=pass (google.com: domain of paulmck@linux.vnet.ibm.com designates 32.97.182.145 as permitted sender) smtp.mail=paulmck@linux.vnet.ibm.com Received: from d01relay06.pok.ibm.com (d01relay06.pok.ibm.com [9.56.227.116]) by e5.ny.us.ibm.com (8.14.4/8.13.1) with ESMTP id p41Cu6AY030166 for ; Sun, 1 May 2011 08:56:06 -0400 Received: from d01av01.pok.ibm.com (d01av01.pok.ibm.com [9.56.224.215]) by d01relay06.pok.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id p41DMYY71273930 for ; Sun, 1 May 2011 09:22:34 -0400 Received: from d01av01.pok.ibm.com (loopback [127.0.0.1]) by d01av01.pok.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id p41DMQY6021122 for ; Sun, 1 May 2011 09:22:32 -0400 Received: from paulmck-ThinkPad-W500 (sig-9-65-224-93.mts.ibm.com [9.65.224.93]) by d01av01.pok.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with ESMTP id p41DMBcV019039; Sun, 1 May 2011 09:22:18 -0400 Received: by paulmck-ThinkPad-W500 (Postfix, from userid 1000) id 6F33213F849; Sun, 1 May 2011 06:22:09 -0700 (PDT) From: "Paul E. McKenney" To: linux-kernel@vger.kernel.org Cc: mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@polymtl.ca, josh@joshtriplett.org, niv@us.ibm.com, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, Valdis.Kletnieks@vt.edu, dhowells@redhat.com, eric.dumazet@gmail.com, darren@dvhart.com, patches@linaro.org, "Paul E. McKenney" , "John W. Linville" , Johannes Berg , "David S. Miller" Subject: [PATCH tip/core/rcu 71/86] net, rcu: convert call_rcu(kfree_tid_tx) to kfree_rcu() Date: Sun, 1 May 2011 06:21:51 -0700 Message-Id: <1304256126-26015-71-git-send-email-paulmck@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.3.2 In-Reply-To: <20110501132142.GA25494@linux.vnet.ibm.com> References: <20110501132142.GA25494@linux.vnet.ibm.com> From: Lai Jiangshan 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 Signed-off-by: Paul E. McKenney Cc: "John W. Linville" Cc: Johannes Berg Cc: "David S. Miller" --- 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);