linux-kernel - [PATCH 21/36] net,rcu: convert call_rcu(netlbl_unlhsh_free_addr6) to kfree

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Message-ID: <4D82D9E2.4000408@cn.fujitsu.com>
Date:	Fri, 18 Mar 2011 12:04:50 +0800
From:	Lai Jiangshan <laijs@...fujitsu.com>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...e.hu>, Paul Moore <paul.moore@...com>,
	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 21/36] net,rcu: convert call_rcu(netlbl_unlhsh_free_addr6)
 to kfree_rcu()



The rcu callback netlbl_unlhsh_free_addr6() just calls a kfree(),
so we use kfree_rcu() instead of the call_rcu(netlbl_unlhsh_free_addr6).

Signed-off-by: Lai Jiangshan <laijs@...fujitsu.com>
---
 net/netlabel/netlabel_unlabeled.c |   22 +---------------------
 1 files changed, 1 insertions(+), 21 deletions(-)

diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c
index 4e5ad90..9c38658 100644
--- a/net/netlabel/netlabel_unlabeled.c
+++ b/net/netlabel/netlabel_unlabeled.c
@@ -153,26 +153,6 @@ static const struct nla_policy netlbl_unlabel_genl_policy[NLBL_UNLABEL_A_MAX + 1
  * Unlabeled Connection Hash Table Functions
  */
 
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
-/**
- * netlbl_unlhsh_free_addr6 - Frees an IPv6 address entry from the hash table
- * @entry: the entry's RCU field
- *
- * Description:
- * This function is designed to be used as a callback to the call_rcu()
- * function so that memory allocated to a hash table address entry can be
- * released safely.
- *
- */
-static void netlbl_unlhsh_free_addr6(struct rcu_head *entry)
-{
-	struct netlbl_unlhsh_addr6 *ptr;
-
-	ptr = container_of(entry, struct netlbl_unlhsh_addr6, rcu);
-	kfree(ptr);
-}
-#endif /* IPv6 */
-
 /**
  * netlbl_unlhsh_free_iface - Frees an interface entry from the hash table
  * @entry: the entry's RCU field
@@ -611,7 +591,7 @@ static int netlbl_unlhsh_remove_addr6(struct net *net,
 	if (entry == NULL)
 		return -ENOENT;
 
-	call_rcu(&entry->rcu, netlbl_unlhsh_free_addr6);
+	kfree_rcu(entry, rcu);
 	return 0;
 }
 #endif /* IPv6 */
-- 
1.7.4
--
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