linux-kernel - [PATCH 19/36] security,rcu: convert call_rcu(sel_netif_free) to kfree

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Date:	Fri, 18 Mar 2011 12:03:19 +0800
From:	Lai Jiangshan <laijs@...fujitsu.com>
To:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...e.hu>,
	Stephen Smalley <sds@...ho.nsa.gov>,
	James Morris <jmorris@...ei.org>,
	Eric Paris <eparis@...isplace.org>,
	linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 19/36] security,rcu: convert call_rcu(sel_netif_free) to kfree_rcu()



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

Signed-off-by: Lai Jiangshan <laijs@...fujitsu.com>
---
 security/selinux/netif.c |   18 +-----------------
 1 files changed, 1 insertions(+), 17 deletions(-)

diff --git a/security/selinux/netif.c b/security/selinux/netif.c
index d6095d6..58cc481 100644
--- a/security/selinux/netif.c
+++ b/security/selinux/netif.c
@@ -104,22 +104,6 @@ static int sel_netif_insert(struct sel_netif *netif)
 }
 
 /**
- * sel_netif_free - Frees an interface entry
- * @p: 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 interface entry can be
- * released safely.
- *
- */
-static void sel_netif_free(struct rcu_head *p)
-{
-	struct sel_netif *netif = container_of(p, struct sel_netif, rcu_head);
-	kfree(netif);
-}
-
-/**
  * sel_netif_destroy - Remove an interface record from the table
  * @netif: the existing interface record
  *
@@ -131,7 +115,7 @@ static void sel_netif_destroy(struct sel_netif *netif)
 {
 	list_del_rcu(&netif->list);
 	sel_netif_total--;
-	call_rcu(&netif->rcu_head, sel_netif_free);
+	kfree_rcu(netif, rcu_head);
 }
 
 /**
-- 
1.7.4
--
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