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-rw-r--r--net/ipv4/ipcomp.c17
-rw-r--r--net/ipv4/netfilter/ip_queue.c11
-rw-r--r--net/ipv4/xfrm4_tunnel.c11
3 files changed, 21 insertions, 18 deletions
diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c
index d64e2ec..c95020f 100644
--- a/net/ipv4/ipcomp.c
+++ b/net/ipv4/ipcomp.c
@@ -24,6 +24,7 @@
#include <linux/list.h>
#include <linux/vmalloc.h>
#include <linux/rtnetlink.h>
+#include <linux/mutex.h>
#include <net/ip.h>
#include <net/xfrm.h>
#include <net/icmp.h>
@@ -36,7 +37,7 @@ struct ipcomp_tfms {
int users;
};
-static DECLARE_MUTEX(ipcomp_resource_sem);
+static DEFINE_MUTEX(ipcomp_resource_mutex);
static void **ipcomp_scratches;
static int ipcomp_scratch_users;
static LIST_HEAD(ipcomp_tfms_list);
@@ -253,7 +254,7 @@ error:
}
/*
- * Must be protected by xfrm_cfg_sem. State and tunnel user references are
+ * Must be protected by xfrm_cfg_mutex. State and tunnel user references are
* always incremented on success.
*/
static int ipcomp_tunnel_attach(struct xfrm_state *x)
@@ -411,9 +412,9 @@ static void ipcomp_destroy(struct xfrm_state *x)
if (!ipcd)
return;
xfrm_state_delete_tunnel(x);
- down(&ipcomp_resource_sem);
+ mutex_lock(&ipcomp_resource_mutex);
ipcomp_free_data(ipcd);
- up(&ipcomp_resource_sem);
+ mutex_unlock(&ipcomp_resource_mutex);
kfree(ipcd);
}
@@ -440,14 +441,14 @@ static int ipcomp_init_state(struct xfrm_state *x)
if (x->props.mode)
x->props.header_len += sizeof(struct iphdr);
- down(&ipcomp_resource_sem);
+ mutex_lock(&ipcomp_resource_mutex);
if (!ipcomp_alloc_scratches())
goto error;
ipcd->tfms = ipcomp_alloc_tfms(x->calg->alg_name);
if (!ipcd->tfms)
goto error;
- up(&ipcomp_resource_sem);
+ mutex_unlock(&ipcomp_resource_mutex);
if (x->props.mode) {
err = ipcomp_tunnel_attach(x);
@@ -464,10 +465,10 @@ out:
return err;
error_tunnel:
- down(&ipcomp_resource_sem);
+ mutex_lock(&ipcomp_resource_mutex);
error:
ipcomp_free_data(ipcd);
- up(&ipcomp_resource_sem);
+ mutex_unlock(&ipcomp_resource_mutex);
kfree(ipcd);
goto out;
}
diff --git a/net/ipv4/netfilter/ip_queue.c b/net/ipv4/netfilter/ip_queue.c
index 08f80e2..1655866 100644
--- a/net/ipv4/netfilter/ip_queue.c
+++ b/net/ipv4/netfilter/ip_queue.c
@@ -35,6 +35,7 @@
#include <linux/sysctl.h>
#include <linux/proc_fs.h>
#include <linux/security.h>
+#include <linux/mutex.h>
#include <net/sock.h>
#include <net/route.h>
@@ -61,7 +62,7 @@ static unsigned int queue_dropped = 0;
static unsigned int queue_user_dropped = 0;
static struct sock *ipqnl;
static LIST_HEAD(queue_list);
-static DECLARE_MUTEX(ipqnl_sem);
+static DEFINE_MUTEX(ipqnl_mutex);
static void
ipq_issue_verdict(struct ipq_queue_entry *entry, int verdict)
@@ -539,7 +540,7 @@ ipq_rcv_sk(struct sock *sk, int len)
struct sk_buff *skb;
unsigned int qlen;
- down(&ipqnl_sem);
+ mutex_lock(&ipqnl_mutex);
for (qlen = skb_queue_len(&sk->sk_receive_queue); qlen; qlen--) {
skb = skb_dequeue(&sk->sk_receive_queue);
@@ -547,7 +548,7 @@ ipq_rcv_sk(struct sock *sk, int len)
kfree_skb(skb);
}
- up(&ipqnl_sem);
+ mutex_unlock(&ipqnl_mutex);
}
static int
@@ -708,8 +709,8 @@ cleanup_sysctl:
cleanup_ipqnl:
sock_release(ipqnl->sk_socket);
- down(&ipqnl_sem);
- up(&ipqnl_sem);
+ mutex_lock(&ipqnl_mutex);
+ mutex_unlock(&ipqnl_mutex);
cleanup_netlink_notifier:
netlink_unregister_notifier(&ipq_nl_notifier);
diff --git a/net/ipv4/xfrm4_tunnel.c b/net/ipv4/xfrm4_tunnel.c
index afbb0d4..b08d56b 100644
--- a/net/ipv4/xfrm4_tunnel.c
+++ b/net/ipv4/xfrm4_tunnel.c
@@ -5,6 +5,7 @@
#include <linux/skbuff.h>
#include <linux/module.h>
+#include <linux/mutex.h>
#include <net/xfrm.h>
#include <net/ip.h>
#include <net/protocol.h>
@@ -26,19 +27,19 @@ static int ipip_xfrm_rcv(struct xfrm_state *x, struct xfrm_decap_state *decap, s
}
static struct xfrm_tunnel *ipip_handler;
-static DECLARE_MUTEX(xfrm4_tunnel_sem);
+static DEFINE_MUTEX(xfrm4_tunnel_mutex);
int xfrm4_tunnel_register(struct xfrm_tunnel *handler)
{
int ret;
- down(&xfrm4_tunnel_sem);
+ mutex_lock(&xfrm4_tunnel_mutex);
ret = 0;
if (ipip_handler != NULL)
ret = -EINVAL;
if (!ret)
ipip_handler = handler;
- up(&xfrm4_tunnel_sem);
+ mutex_unlock(&xfrm4_tunnel_mutex);
return ret;
}
@@ -49,13 +50,13 @@ int xfrm4_tunnel_deregister(struct xfrm_tunnel *handler)
{
int ret;
- down(&xfrm4_tunnel_sem);
+ mutex_lock(&xfrm4_tunnel_mutex);
ret = 0;
if (ipip_handler != handler)
ret = -EINVAL;
if (!ret)
ipip_handler = NULL;
- up(&xfrm4_tunnel_sem);
+ mutex_unlock(&xfrm4_tunnel_mutex);
synchronize_net();