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[NET] sem2mutex: net/ 

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arjan van de Ven 2006-03-20 22:33:17 -08:00 committed by David S. Miller
parent d4ccd08cdf
commit 4a3e2f711a
19 changed files with 118 additions and 101 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
include/net/xfrm.h
View File

@ -11,6 +11,7 @@
#include <linux/crypto.h> #include <linux/crypto.h>
#include <linux/pfkeyv2.h> #include <linux/pfkeyv2.h>
#include <linux/in6.h> #include <linux/in6.h>
#include <linux/mutex.h>
#include <net/sock.h> #include <net/sock.h>
#include <net/dst.h> #include <net/dst.h>
@ -24,7 +25,7 @@ extern struct sock *xfrm_nl;
extern u32 sysctl_xfrm_aevent_etime; extern u32 sysctl_xfrm_aevent_etime;
extern u32 sysctl_xfrm_aevent_rseqth; extern u32 sysctl_xfrm_aevent_rseqth;
extern struct semaphore xfrm_cfg_sem; extern struct mutex xfrm_cfg_mutex;
/* Organization of SPD aka "XFRM rules" /* Organization of SPD aka "XFRM rules"
------------------------------------ ------------------------------------

15
net/atm/ioctl.c
View File

@ -18,6 +18,7 @@
#include <linux/atmmpc.h> #include <linux/atmmpc.h>
#include <net/atmclip.h> #include <net/atmclip.h>
#include <linux/atmlec.h> #include <linux/atmlec.h>
#include <linux/mutex.h>
#include <asm/ioctls.h> #include <asm/ioctls.h>
#include "resources.h" #include "resources.h"
@ -25,22 +26,22 @@
#include "common.h" #include "common.h"
static DECLARE_MUTEX(ioctl_mutex); static DEFINE_MUTEX(ioctl_mutex);
static LIST_HEAD(ioctl_list); static LIST_HEAD(ioctl_list);
void register_atm_ioctl(struct atm_ioctl *ioctl) void register_atm_ioctl(struct atm_ioctl *ioctl)
{ {
down(&ioctl_mutex); mutex_lock(&ioctl_mutex);
list_add_tail(&ioctl->list, &ioctl_list); list_add_tail(&ioctl->list, &ioctl_list);
up(&ioctl_mutex); mutex_unlock(&ioctl_mutex);
} }
void deregister_atm_ioctl(struct atm_ioctl *ioctl) void deregister_atm_ioctl(struct atm_ioctl *ioctl)
{ {
down(&ioctl_mutex); mutex_lock(&ioctl_mutex);
list_del(&ioctl->list); list_del(&ioctl->list);
up(&ioctl_mutex); mutex_unlock(&ioctl_mutex);
} }
EXPORT_SYMBOL(register_atm_ioctl); EXPORT_SYMBOL(register_atm_ioctl);
@ -137,7 +138,7 @@ int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
error = -ENOIOCTLCMD; error = -ENOIOCTLCMD;
down(&ioctl_mutex); mutex_lock(&ioctl_mutex);
list_for_each(pos, &ioctl_list) { list_for_each(pos, &ioctl_list) {
struct atm_ioctl * ic = list_entry(pos, struct atm_ioctl, list); struct atm_ioctl * ic = list_entry(pos, struct atm_ioctl, list);
if (try_module_get(ic->owner)) { if (try_module_get(ic->owner)) {
@ -147,7 +148,7 @@ int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
break; break;
} }
} }
up(&ioctl_mutex); mutex_unlock(&ioctl_mutex);
if (error != -ENOIOCTLCMD) if (error != -ENOIOCTLCMD)
goto done; goto done;

8
net/bluetooth/rfcomm/core.c
View File

@ -37,6 +37,8 @@
#include <linux/wait.h> #include <linux/wait.h>
#include <linux/device.h> #include <linux/device.h>
#include <linux/net.h> #include <linux/net.h>
#include <linux/mutex.h>
#include <net/sock.h> #include <net/sock.h>
#include <asm/uaccess.h> #include <asm/uaccess.h>
#include <asm/unaligned.h> #include <asm/unaligned.h>
@ -57,9 +59,9 @@ static unsigned int l2cap_mtu = RFCOMM_MAX_L2CAP_MTU;
static struct task_struct *rfcomm_thread; static struct task_struct *rfcomm_thread;
static DECLARE_MUTEX(rfcomm_sem); static DEFINE_MUTEX(rfcomm_mutex);
#define rfcomm_lock() down(&rfcomm_sem); #define rfcomm_lock() mutex_lock(&rfcomm_mutex)
#define rfcomm_unlock() up(&rfcomm_sem); #define rfcomm_unlock() mutex_unlock(&rfcomm_mutex)
static unsigned long rfcomm_event; static unsigned long rfcomm_event;

7
net/core/dev.c
View File

@ -81,6 +81,7 @@
#include <linux/types.h> #include <linux/types.h>
#include <linux/kernel.h> #include <linux/kernel.h>
#include <linux/sched.h> #include <linux/sched.h>
#include <linux/mutex.h>
#include <linux/string.h> #include <linux/string.h>
#include <linux/mm.h> #include <linux/mm.h>
#include <linux/socket.h> #include <linux/socket.h>
@ -2931,7 +2932,7 @@ static void netdev_wait_allrefs(struct net_device *dev)
* 2) Since we run with the RTNL semaphore not held, we can sleep * 2) Since we run with the RTNL semaphore not held, we can sleep
* safely in order to wait for the netdev refcnt to drop to zero. * safely in order to wait for the netdev refcnt to drop to zero.
*/ */
static DECLARE_MUTEX(net_todo_run_mutex); static DEFINE_MUTEX(net_todo_run_mutex);
void netdev_run_todo(void) void netdev_run_todo(void)
{ {
struct list_head list = LIST_HEAD_INIT(list); struct list_head list = LIST_HEAD_INIT(list);
@ -2939,7 +2940,7 @@ void netdev_run_todo(void)
/* Need to guard against multiple cpu's getting out of order. */ /* Need to guard against multiple cpu's getting out of order. */
down(&net_todo_run_mutex); mutex_lock(&net_todo_run_mutex);
/* Not safe to do outside the semaphore. We must not return /* Not safe to do outside the semaphore. We must not return
* until all unregister events invoked by the local processor * until all unregister events invoked by the local processor
@ -2996,7 +2997,7 @@ void netdev_run_todo(void)
} }
out: out:
up(&net_todo_run_mutex); mutex_unlock(&net_todo_run_mutex);
} }
/** /**

7
net/core/flow.c
View File

@ -20,6 +20,7 @@
#include <linux/notifier.h> #include <linux/notifier.h>
#include <linux/cpu.h> #include <linux/cpu.h>
#include <linux/cpumask.h> #include <linux/cpumask.h>
#include <linux/mutex.h>
#include <net/flow.h> #include <net/flow.h>
#include <asm/atomic.h> #include <asm/atomic.h>
#include <asm/semaphore.h> #include <asm/semaphore.h>
@ -287,11 +288,11 @@ static void flow_cache_flush_per_cpu(void *data)
void flow_cache_flush(void) void flow_cache_flush(void)
{ {
struct flow_flush_info info; struct flow_flush_info info;
static DECLARE_MUTEX(flow_flush_sem); static DEFINE_MUTEX(flow_flush_sem);
/* Don't want cpus going down or up during this. */ /* Don't want cpus going down or up during this. */
lock_cpu_hotplug(); lock_cpu_hotplug();
down(&flow_flush_sem); mutex_lock(&flow_flush_sem);
atomic_set(&info.cpuleft, num_online_cpus()); atomic_set(&info.cpuleft, num_online_cpus());
init_completion(&info.completion); init_completion(&info.completion);
@ -301,7 +302,7 @@ void flow_cache_flush(void)
local_bh_enable(); local_bh_enable();
wait_for_completion(&info.completion); wait_for_completion(&info.completion);
up(&flow_flush_sem); mutex_unlock(&flow_flush_sem);
unlock_cpu_hotplug(); unlock_cpu_hotplug();
} }

17
net/ipv4/ipcomp.c
View File

@ -24,6 +24,7 @@
#include <linux/list.h> #include <linux/list.h>
#include <linux/vmalloc.h> #include <linux/vmalloc.h>
#include <linux/rtnetlink.h> #include <linux/rtnetlink.h>
#include <linux/mutex.h>
#include <net/ip.h> #include <net/ip.h>
#include <net/xfrm.h> #include <net/xfrm.h>
#include <net/icmp.h> #include <net/icmp.h>
@ -36,7 +37,7 @@ struct ipcomp_tfms {
int users; int users;
}; };
static DECLARE_MUTEX(ipcomp_resource_sem); static DEFINE_MUTEX(ipcomp_resource_mutex);
static void **ipcomp_scratches; static void **ipcomp_scratches;
static int ipcomp_scratch_users; static int ipcomp_scratch_users;
static LIST_HEAD(ipcomp_tfms_list); 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. * always incremented on success.
*/ */
static int ipcomp_tunnel_attach(struct xfrm_state *x) static int ipcomp_tunnel_attach(struct xfrm_state *x)
@ -411,9 +412,9 @@ static void ipcomp_destroy(struct xfrm_state *x)
if (!ipcd) if (!ipcd)
return; return;
xfrm_state_delete_tunnel(x); xfrm_state_delete_tunnel(x);
down(&ipcomp_resource_sem); mutex_lock(&ipcomp_resource_mutex);
ipcomp_free_data(ipcd); ipcomp_free_data(ipcd);
up(&ipcomp_resource_sem); mutex_unlock(&ipcomp_resource_mutex);
kfree(ipcd); kfree(ipcd);
} }
@ -440,14 +441,14 @@ static int ipcomp_init_state(struct xfrm_state *x)
if (x->props.mode) if (x->props.mode)
x->props.header_len += sizeof(struct iphdr); x->props.header_len += sizeof(struct iphdr);
down(&ipcomp_resource_sem); mutex_lock(&ipcomp_resource_mutex);
if (!ipcomp_alloc_scratches()) if (!ipcomp_alloc_scratches())
goto error; goto error;
ipcd->tfms = ipcomp_alloc_tfms(x->calg->alg_name); ipcd->tfms = ipcomp_alloc_tfms(x->calg->alg_name);
if (!ipcd->tfms) if (!ipcd->tfms)
goto error; goto error;
up(&ipcomp_resource_sem); mutex_unlock(&ipcomp_resource_mutex);
if (x->props.mode) { if (x->props.mode) {
err = ipcomp_tunnel_attach(x); err = ipcomp_tunnel_attach(x);
@ -464,10 +465,10 @@ out:
return err; return err;
error_tunnel: error_tunnel:
down(&ipcomp_resource_sem); mutex_lock(&ipcomp_resource_mutex);
error: error:
ipcomp_free_data(ipcd); ipcomp_free_data(ipcd);
up(&ipcomp_resource_sem); mutex_unlock(&ipcomp_resource_mutex);
kfree(ipcd); kfree(ipcd);
goto out; goto out;
} }

11
net/ipv4/netfilter/ip_queue.c
View File

@ -35,6 +35,7 @@
#include <linux/sysctl.h> #include <linux/sysctl.h>
#include <linux/proc_fs.h> #include <linux/proc_fs.h>
#include <linux/security.h> #include <linux/security.h>
#include <linux/mutex.h>
#include <net/sock.h> #include <net/sock.h>
#include <net/route.h> #include <net/route.h>
@ -61,7 +62,7 @@ static unsigned int queue_dropped = 0;
static unsigned int queue_user_dropped = 0; static unsigned int queue_user_dropped = 0;
static struct sock *ipqnl; static struct sock *ipqnl;
static LIST_HEAD(queue_list); static LIST_HEAD(queue_list);
static DECLARE_MUTEX(ipqnl_sem); static DEFINE_MUTEX(ipqnl_mutex);
static void static void
ipq_issue_verdict(struct ipq_queue_entry *entry, int verdict) 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; struct sk_buff *skb;
unsigned int qlen; unsigned int qlen;
down(&ipqnl_sem); mutex_lock(&ipqnl_mutex);
for (qlen = skb_queue_len(&sk->sk_receive_queue); qlen; qlen--) { for (qlen = skb_queue_len(&sk->sk_receive_queue); qlen; qlen--) {
skb = skb_dequeue(&sk->sk_receive_queue); skb = skb_dequeue(&sk->sk_receive_queue);
@ -547,7 +548,7 @@ ipq_rcv_sk(struct sock *sk, int len)
kfree_skb(skb); kfree_skb(skb);
} }
up(&ipqnl_sem); mutex_unlock(&ipqnl_mutex);
} }
static int static int
@ -708,8 +709,8 @@ cleanup_sysctl:
cleanup_ipqnl: cleanup_ipqnl:
sock_release(ipqnl->sk_socket); sock_release(ipqnl->sk_socket);
down(&ipqnl_sem); mutex_lock(&ipqnl_mutex);
up(&ipqnl_sem); mutex_unlock(&ipqnl_mutex);
cleanup_netlink_notifier: cleanup_netlink_notifier:
netlink_unregister_notifier(&ipq_nl_notifier); netlink_unregister_notifier(&ipq_nl_notifier);

11
net/ipv4/xfrm4_tunnel.c
View File

@ -5,6 +5,7 @@
#include <linux/skbuff.h> #include <linux/skbuff.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/mutex.h>
#include <net/xfrm.h> #include <net/xfrm.h>
#include <net/ip.h> #include <net/ip.h>
#include <net/protocol.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 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 xfrm4_tunnel_register(struct xfrm_tunnel *handler)
{ {
int ret; int ret;
down(&xfrm4_tunnel_sem); mutex_lock(&xfrm4_tunnel_mutex);
ret = 0; ret = 0;
if (ipip_handler != NULL) if (ipip_handler != NULL)
ret = -EINVAL; ret = -EINVAL;
if (!ret) if (!ret)
ipip_handler = handler; ipip_handler = handler;
up(&xfrm4_tunnel_sem); mutex_unlock(&xfrm4_tunnel_mutex);
return ret; return ret;
} }
@ -49,13 +50,13 @@ int xfrm4_tunnel_deregister(struct xfrm_tunnel *handler)
{ {
int ret; int ret;
down(&xfrm4_tunnel_sem); mutex_lock(&xfrm4_tunnel_mutex);
ret = 0; ret = 0;
if (ipip_handler != handler) if (ipip_handler != handler)
ret = -EINVAL; ret = -EINVAL;
if (!ret) if (!ret)
ipip_handler = NULL; ipip_handler = NULL;
up(&xfrm4_tunnel_sem); mutex_unlock(&xfrm4_tunnel_mutex);
synchronize_net(); synchronize_net();

15
net/ipv6/ipcomp6.c
View File

@ -50,6 +50,7 @@
#include <net/protocol.h> #include <net/protocol.h>
#include <linux/ipv6.h> #include <linux/ipv6.h>
#include <linux/icmpv6.h> #include <linux/icmpv6.h>
#include <linux/mutex.h>
struct ipcomp6_tfms { struct ipcomp6_tfms {
struct list_head list; struct list_head list;
@ -57,7 +58,7 @@ struct ipcomp6_tfms {
int users; int users;
}; };
static DECLARE_MUTEX(ipcomp6_resource_sem); static DEFINE_MUTEX(ipcomp6_resource_mutex);
static void **ipcomp6_scratches; static void **ipcomp6_scratches;
static int ipcomp6_scratch_users; static int ipcomp6_scratch_users;
static LIST_HEAD(ipcomp6_tfms_list); static LIST_HEAD(ipcomp6_tfms_list);
@ -405,9 +406,9 @@ static void ipcomp6_destroy(struct xfrm_state *x)
if (!ipcd) if (!ipcd)
return; return;
xfrm_state_delete_tunnel(x); xfrm_state_delete_tunnel(x);
down(&ipcomp6_resource_sem); mutex_lock(&ipcomp6_resource_mutex);
ipcomp6_free_data(ipcd); ipcomp6_free_data(ipcd);
up(&ipcomp6_resource_sem); mutex_unlock(&ipcomp6_resource_mutex);
kfree(ipcd); kfree(ipcd);
xfrm6_tunnel_free_spi((xfrm_address_t *)&x->props.saddr); xfrm6_tunnel_free_spi((xfrm_address_t *)&x->props.saddr);
@ -436,14 +437,14 @@ static int ipcomp6_init_state(struct xfrm_state *x)
if (x->props.mode) if (x->props.mode)
x->props.header_len += sizeof(struct ipv6hdr); x->props.header_len += sizeof(struct ipv6hdr);
down(&ipcomp6_resource_sem); mutex_lock(&ipcomp6_resource_mutex);
if (!ipcomp6_alloc_scratches()) if (!ipcomp6_alloc_scratches())
goto error; goto error;
ipcd->tfms = ipcomp6_alloc_tfms(x->calg->alg_name); ipcd->tfms = ipcomp6_alloc_tfms(x->calg->alg_name);
if (!ipcd->tfms) if (!ipcd->tfms)
goto error; goto error;
up(&ipcomp6_resource_sem); mutex_unlock(&ipcomp6_resource_mutex);
if (x->props.mode) { if (x->props.mode) {
err = ipcomp6_tunnel_attach(x); err = ipcomp6_tunnel_attach(x);
@ -459,10 +460,10 @@ static int ipcomp6_init_state(struct xfrm_state *x)
out: out:
return err; return err;
error_tunnel: error_tunnel:
down(&ipcomp6_resource_sem); mutex_lock(&ipcomp6_resource_mutex);
error: error:
ipcomp6_free_data(ipcd); ipcomp6_free_data(ipcd);
up(&ipcomp6_resource_sem); mutex_unlock(&ipcomp6_resource_mutex);
kfree(ipcd); kfree(ipcd);
goto out; goto out;

11
net/ipv6/netfilter/ip6_queue.c
View File

@ -35,6 +35,7 @@
#include <linux/spinlock.h> #include <linux/spinlock.h>
#include <linux/sysctl.h> #include <linux/sysctl.h>
#include <linux/proc_fs.h> #include <linux/proc_fs.h>
#include <linux/mutex.h>
#include <net/sock.h> #include <net/sock.h>
#include <net/ipv6.h> #include <net/ipv6.h>
#include <net/ip6_route.h> #include <net/ip6_route.h>
@ -65,7 +66,7 @@ static unsigned int queue_dropped = 0;
static unsigned int queue_user_dropped = 0; static unsigned int queue_user_dropped = 0;
static struct sock *ipqnl; static struct sock *ipqnl;
static LIST_HEAD(queue_list); static LIST_HEAD(queue_list);
static DECLARE_MUTEX(ipqnl_sem); static DEFINE_MUTEX(ipqnl_mutex);
static void static void
ipq_issue_verdict(struct ipq_queue_entry *entry, int verdict) ipq_issue_verdict(struct ipq_queue_entry *entry, int verdict)
@ -537,7 +538,7 @@ ipq_rcv_sk(struct sock *sk, int len)
struct sk_buff *skb; struct sk_buff *skb;
unsigned int qlen; unsigned int qlen;
down(&ipqnl_sem); mutex_lock(&ipqnl_mutex);
for (qlen = skb_queue_len(&sk->sk_receive_queue); qlen; qlen--) { for (qlen = skb_queue_len(&sk->sk_receive_queue); qlen; qlen--) {
skb = skb_dequeue(&sk->sk_receive_queue); skb = skb_dequeue(&sk->sk_receive_queue);
@ -545,7 +546,7 @@ ipq_rcv_sk(struct sock *sk, int len)
kfree_skb(skb); kfree_skb(skb);
} }
up(&ipqnl_sem); mutex_unlock(&ipqnl_mutex);
} }
static int static int
@ -704,8 +705,8 @@ cleanup_sysctl:
cleanup_ipqnl: cleanup_ipqnl:
sock_release(ipqnl->sk_socket); sock_release(ipqnl->sk_socket);
down(&ipqnl_sem); mutex_lock(&ipqnl_mutex);
up(&ipqnl_sem); mutex_unlock(&ipqnl_mutex);
cleanup_netlink_notifier: cleanup_netlink_notifier:
netlink_unregister_notifier(&ipq_nl_notifier); netlink_unregister_notifier(&ipq_nl_notifier);

11
net/ipv6/xfrm6_tunnel.c
View File

@ -31,6 +31,7 @@
#include <net/protocol.h> #include <net/protocol.h>
#include <linux/ipv6.h> #include <linux/ipv6.h>
#include <linux/icmpv6.h> #include <linux/icmpv6.h>
#include <linux/mutex.h>
#ifdef CONFIG_IPV6_XFRM6_TUNNEL_DEBUG #ifdef CONFIG_IPV6_XFRM6_TUNNEL_DEBUG
# define X6TDEBUG 3 # define X6TDEBUG 3
@ -357,19 +358,19 @@ static int xfrm6_tunnel_input(struct xfrm_state *x, struct xfrm_decap_state *dec
} }
static struct xfrm6_tunnel *xfrm6_tunnel_handler; static struct xfrm6_tunnel *xfrm6_tunnel_handler;
static DECLARE_MUTEX(xfrm6_tunnel_sem); static DEFINE_MUTEX(xfrm6_tunnel_mutex);
int xfrm6_tunnel_register(struct xfrm6_tunnel *handler) int xfrm6_tunnel_register(struct xfrm6_tunnel *handler)
{ {
int ret; int ret;
down(&xfrm6_tunnel_sem); mutex_lock(&xfrm6_tunnel_mutex);
ret = 0; ret = 0;
if (xfrm6_tunnel_handler != NULL) if (xfrm6_tunnel_handler != NULL)
ret = -EINVAL; ret = -EINVAL;
if (!ret) if (!ret)
xfrm6_tunnel_handler = handler; xfrm6_tunnel_handler = handler;
up(&xfrm6_tunnel_sem); mutex_unlock(&xfrm6_tunnel_mutex);
return ret; return ret;
} }
@ -380,13 +381,13 @@ int xfrm6_tunnel_deregister(struct xfrm6_tunnel *handler)
{ {
int ret; int ret;
down(&xfrm6_tunnel_sem); mutex_lock(&xfrm6_tunnel_mutex);
ret = 0; ret = 0;
if (xfrm6_tunnel_handler != handler) if (xfrm6_tunnel_handler != handler)
ret = -EINVAL; ret = -EINVAL;
if (!ret) if (!ret)
xfrm6_tunnel_handler = NULL; xfrm6_tunnel_handler = NULL;
up(&xfrm6_tunnel_sem); mutex_unlock(&xfrm6_tunnel_mutex);
synchronize_net(); synchronize_net();

4
net/key/af_key.c
View File

@ -3080,9 +3080,9 @@ static int pfkey_sendmsg(struct kiocb *kiocb,
if (!hdr) if (!hdr)
goto out; goto out;
down(&xfrm_cfg_sem); mutex_lock(&xfrm_cfg_mutex);
err = pfkey_process(sk, skb, hdr); err = pfkey_process(sk, skb, hdr);
up(&xfrm_cfg_sem); mutex_unlock(&xfrm_cfg_mutex);
out: out:
if (err && hdr && pfkey_error(hdr, err, sk) == 0) if (err && hdr && pfkey_error(hdr, err, sk) == 0)

25
net/netfilter/nf_sockopt.c
View File

@ -4,6 +4,7 @@
#include <linux/module.h> #include <linux/module.h>
#include <linux/skbuff.h> #include <linux/skbuff.h>
#include <linux/netfilter.h> #include <linux/netfilter.h>
#include <linux/mutex.h>
#include <net/sock.h> #include <net/sock.h>
#include "nf_internals.h" #include "nf_internals.h"
@ -11,7 +12,7 @@
/* Sockopts only registered and called from user context, so /* Sockopts only registered and called from user context, so
net locking would be overkill. Also, [gs]etsockopt calls may net locking would be overkill. Also, [gs]etsockopt calls may
sleep. */ sleep. */
static DECLARE_MUTEX(nf_sockopt_mutex); static DEFINE_MUTEX(nf_sockopt_mutex);
static LIST_HEAD(nf_sockopts); static LIST_HEAD(nf_sockopts);
/* Do exclusive ranges overlap? */ /* Do exclusive ranges overlap? */
@ -26,7 +27,7 @@ int nf_register_sockopt(struct nf_sockopt_ops *reg)
struct list_head *i; struct list_head *i;
int ret = 0; int ret = 0;
if (down_interruptible(&nf_sockopt_mutex) != 0) if (mutex_lock_interruptible(&nf_sockopt_mutex) != 0)
return -EINTR; return -EINTR;
list_for_each(i, &nf_sockopts) { list_for_each(i, &nf_sockopts) {
@ -48,7 +49,7 @@ int nf_register_sockopt(struct nf_sockopt_ops *reg)
list_add(&reg->list, &nf_sockopts); list_add(&reg->list, &nf_sockopts);
out: out:
up(&nf_sockopt_mutex); mutex_unlock(&nf_sockopt_mutex);
return ret; return ret;
} }
EXPORT_SYMBOL(nf_register_sockopt); EXPORT_SYMBOL(nf_register_sockopt);
@ -57,18 +58,18 @@ void nf_unregister_sockopt(struct nf_sockopt_ops *reg)
{ {
/* No point being interruptible: we're probably in cleanup_module() */ /* No point being interruptible: we're probably in cleanup_module() */
restart: restart:
down(&nf_sockopt_mutex); mutex_lock(&nf_sockopt_mutex);
if (reg->use != 0) { if (reg->use != 0) {
/* To be woken by nf_sockopt call... */ /* To be woken by nf_sockopt call... */
/* FIXME: Stuart Young's name appears gratuitously. */ /* FIXME: Stuart Young's name appears gratuitously. */
set_current_state(TASK_UNINTERRUPTIBLE); set_current_state(TASK_UNINTERRUPTIBLE);
reg->cleanup_task = current; reg->cleanup_task = current;
up(&nf_sockopt_mutex); mutex_unlock(&nf_sockopt_mutex);
schedule(); schedule();
goto restart; goto restart;
} }
list_del(&reg->list); list_del(&reg->list);
up(&nf_sockopt_mutex); mutex_unlock(&nf_sockopt_mutex);
} }
EXPORT_SYMBOL(nf_unregister_sockopt); EXPORT_SYMBOL(nf_unregister_sockopt);
@ -80,7 +81,7 @@ static int nf_sockopt(struct sock *sk, int pf, int val,
struct nf_sockopt_ops *ops; struct nf_sockopt_ops *ops;
int ret; int ret;
if (down_interruptible(&nf_sockopt_mutex) != 0) if (mutex_lock_interruptible(&nf_sockopt_mutex) != 0)
return -EINTR; return -EINTR;
list_for_each(i, &nf_sockopts) { list_for_each(i, &nf_sockopts) {
@ -90,7 +91,7 @@ static int nf_sockopt(struct sock *sk, int pf, int val,
if (val >= ops->get_optmin if (val >= ops->get_optmin
&& val < ops->get_optmax) { && val < ops->get_optmax) {
ops->use++; ops->use++;
up(&nf_sockopt_mutex); mutex_unlock(&nf_sockopt_mutex);
ret = ops->get(sk, val, opt, len); ret = ops->get(sk, val, opt, len);
goto out; goto out;
} }
@ -98,22 +99,22 @@ static int nf_sockopt(struct sock *sk, int pf, int val,
if (val >= ops->set_optmin if (val >= ops->set_optmin
&& val < ops->set_optmax) { && val < ops->set_optmax) {
ops->use++; ops->use++;
up(&nf_sockopt_mutex); mutex_unlock(&nf_sockopt_mutex);
ret = ops->set(sk, val, opt, *len); ret = ops->set(sk, val, opt, *len);
goto out; goto out;
} }
} }
} }
} }
up(&nf_sockopt_mutex); mutex_unlock(&nf_sockopt_mutex);
return -ENOPROTOOPT; return -ENOPROTOOPT;
out: out:
down(&nf_sockopt_mutex); mutex_lock(&nf_sockopt_mutex);
ops->use--; ops->use--;
if (ops->cleanup_task) if (ops->cleanup_task)
wake_up_process(ops->cleanup_task); wake_up_process(ops->cleanup_task);
up(&nf_sockopt_mutex); mutex_unlock(&nf_sockopt_mutex);
return ret; return ret;
} }

31
net/socket.c
View File

@ -68,6 +68,7 @@
#include <linux/netdevice.h> #include <linux/netdevice.h>
#include <linux/proc_fs.h> #include <linux/proc_fs.h>
#include <linux/seq_file.h> #include <linux/seq_file.h>
#include <linux/mutex.h>
#include <linux/wanrouter.h> #include <linux/wanrouter.h>
#include <linux/if_bridge.h> #include <linux/if_bridge.h>
#include <linux/if_frad.h> #include <linux/if_frad.h>
@ -826,36 +827,36 @@ static ssize_t sock_aio_write(struct kiocb *iocb, const char __user *ubuf,
* with module unload. * with module unload.
*/ */
static DECLARE_MUTEX(br_ioctl_mutex); static DEFINE_MUTEX(br_ioctl_mutex);
static int (*br_ioctl_hook)(unsigned int cmd, void __user *arg) = NULL; static int (*br_ioctl_hook)(unsigned int cmd, void __user *arg) = NULL;
void brioctl_set(int (*hook)(unsigned int, void __user *)) void brioctl_set(int (*hook)(unsigned int, void __user *))
{ {
down(&br_ioctl_mutex); mutex_lock(&br_ioctl_mutex);
br_ioctl_hook = hook; br_ioctl_hook = hook;
up(&br_ioctl_mutex); mutex_unlock(&br_ioctl_mutex);
} }
EXPORT_SYMBOL(brioctl_set); EXPORT_SYMBOL(brioctl_set);
static DECLARE_MUTEX(vlan_ioctl_mutex); static DEFINE_MUTEX(vlan_ioctl_mutex);
static int (*vlan_ioctl_hook)(void __user *arg); static int (*vlan_ioctl_hook)(void __user *arg);
void vlan_ioctl_set(int (*hook)(void __user *)) void vlan_ioctl_set(int (*hook)(void __user *))
{ {
down(&vlan_ioctl_mutex); mutex_lock(&vlan_ioctl_mutex);
vlan_ioctl_hook = hook; vlan_ioctl_hook = hook;
up(&vlan_ioctl_mutex); mutex_unlock(&vlan_ioctl_mutex);
} }
EXPORT_SYMBOL(vlan_ioctl_set); EXPORT_SYMBOL(vlan_ioctl_set);
static DECLARE_MUTEX(dlci_ioctl_mutex); static DEFINE_MUTEX(dlci_ioctl_mutex);
static int (*dlci_ioctl_hook)(unsigned int, void __user *); static int (*dlci_ioctl_hook)(unsigned int, void __user *);
void dlci_ioctl_set(int (*hook)(unsigned int, void __user *)) void dlci_ioctl_set(int (*hook)(unsigned int, void __user *))
{ {
down(&dlci_ioctl_mutex); mutex_lock(&dlci_ioctl_mutex);
dlci_ioctl_hook = hook; dlci_ioctl_hook = hook;
up(&dlci_ioctl_mutex); mutex_unlock(&dlci_ioctl_mutex);
} }
EXPORT_SYMBOL(dlci_ioctl_set); EXPORT_SYMBOL(dlci_ioctl_set);
@ -899,10 +900,10 @@ static long sock_ioctl(struct file *file, unsigned cmd, unsigned long arg)
if (!br_ioctl_hook) if (!br_ioctl_hook)
request_module("bridge"); request_module("bridge");
down(&br_ioctl_mutex); mutex_lock(&br_ioctl_mutex);
if (br_ioctl_hook) if (br_ioctl_hook)
err = br_ioctl_hook(cmd, argp); err = br_ioctl_hook(cmd, argp);
up(&br_ioctl_mutex); mutex_unlock(&br_ioctl_mutex);
break; break;
case SIOCGIFVLAN: case SIOCGIFVLAN:
case SIOCSIFVLAN: case SIOCSIFVLAN:
@ -910,10 +911,10 @@ static long sock_ioctl(struct file *file, unsigned cmd, unsigned long arg)
if (!vlan_ioctl_hook) if (!vlan_ioctl_hook)
request_module("8021q"); request_module("8021q");
down(&vlan_ioctl_mutex); mutex_lock(&vlan_ioctl_mutex);
if (vlan_ioctl_hook) if (vlan_ioctl_hook)
err = vlan_ioctl_hook(argp); err = vlan_ioctl_hook(argp);
up(&vlan_ioctl_mutex); mutex_unlock(&vlan_ioctl_mutex);
break; break;
case SIOCGIFDIVERT: case SIOCGIFDIVERT:
case SIOCSIFDIVERT: case SIOCSIFDIVERT:
@ -927,9 +928,9 @@ static long sock_ioctl(struct file *file, unsigned cmd, unsigned long arg)
request_module("dlci"); request_module("dlci");
if (dlci_ioctl_hook) { if (dlci_ioctl_hook) {
down(&dlci_ioctl_mutex); mutex_lock(&dlci_ioctl_mutex);
err = dlci_ioctl_hook(cmd, argp); err = dlci_ioctl_hook(cmd, argp);
up(&dlci_ioctl_mutex); mutex_unlock(&dlci_ioctl_mutex);
} }
break; break;
default: default:

17
net/sunrpc/cache.c
View File

@ -26,6 +26,7 @@
#include <linux/proc_fs.h> #include <linux/proc_fs.h>
#include <linux/net.h> #include <linux/net.h>
#include <linux/workqueue.h> #include <linux/workqueue.h>
#include <linux/mutex.h>
#include <asm/ioctls.h> #include <asm/ioctls.h>
#include <linux/sunrpc/types.h> #include <linux/sunrpc/types.h>
#include <linux/sunrpc/cache.h> #include <linux/sunrpc/cache.h>
@ -532,7 +533,7 @@ void cache_clean_deferred(void *owner)
*/ */
static DEFINE_SPINLOCK(queue_lock); static DEFINE_SPINLOCK(queue_lock);
static DECLARE_MUTEX(queue_io_sem); static DEFINE_MUTEX(queue_io_mutex);
struct cache_queue { struct cache_queue {
struct list_head list; struct list_head list;
@ -561,7 +562,7 @@ cache_read(struct file *filp, char __user *buf, size_t count, loff_t *ppos)
if (count == 0) if (count == 0)
return 0; return 0;
down(&queue_io_sem); /* protect against multiple concurrent mutex_lock(&queue_io_mutex); /* protect against multiple concurrent
* readers on this file */ * readers on this file */
again: again:
spin_lock(&queue_lock); spin_lock(&queue_lock);
@ -574,7 +575,7 @@ cache_read(struct file *filp, char __user *buf, size_t count, loff_t *ppos)
} }
if (rp->q.list.next == &cd->queue) { if (rp->q.list.next == &cd->queue) {
spin_unlock(&queue_lock); spin_unlock(&queue_lock);
up(&queue_io_sem); mutex_unlock(&queue_io_mutex);
BUG_ON(rp->offset); BUG_ON(rp->offset);
return 0; return 0;
} }
@ -621,11 +622,11 @@ cache_read(struct file *filp, char __user *buf, size_t count, loff_t *ppos)
} }
if (err == -EAGAIN) if (err == -EAGAIN)
goto again; goto again;
up(&queue_io_sem); mutex_unlock(&queue_io_mutex);
return err ? err : count; return err ? err : count;
} }
static char write_buf[8192]; /* protected by queue_io_sem */ static char write_buf[8192]; /* protected by queue_io_mutex */
static ssize_t static ssize_t
cache_write(struct file *filp, const char __user *buf, size_t count, cache_write(struct file *filp, const char __user *buf, size_t count,
@ -639,10 +640,10 @@ cache_write(struct file *filp, const char __user *buf, size_t count,
if (count >= sizeof(write_buf)) if (count >= sizeof(write_buf))
return -EINVAL; return -EINVAL;
down(&queue_io_sem); mutex_lock(&queue_io_mutex);
if (copy_from_user(write_buf, buf, count)) { if (copy_from_user(write_buf, buf, count)) {
up(&queue_io_sem); mutex_unlock(&queue_io_mutex);
return -EFAULT; return -EFAULT;
} }
write_buf[count] = '\0'; write_buf[count] = '\0';
@ -651,7 +652,7 @@ cache_write(struct file *filp, const char __user *buf, size_t count,
else else
err = -EINVAL; err = -EINVAL;
up(&queue_io_sem); mutex_unlock(&queue_io_mutex);
return err ? err : count; return err ? err : count;
} }

11
net/sunrpc/sched.c
View File

@ -18,6 +18,7 @@
#include <linux/smp.h> #include <linux/smp.h>
#include <linux/smp_lock.h> #include <linux/smp_lock.h>
#include <linux/spinlock.h> #include <linux/spinlock.h>
#include <linux/mutex.h>
#include <linux/sunrpc/clnt.h> #include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/xprt.h> #include <linux/sunrpc/xprt.h>
@ -62,7 +63,7 @@ static LIST_HEAD(all_tasks);
/* /*
* rpciod-related stuff * rpciod-related stuff
*/ */
static DECLARE_MUTEX(rpciod_sema); static DEFINE_MUTEX(rpciod_mutex);
static unsigned int rpciod_users; static unsigned int rpciod_users;
static struct workqueue_struct *rpciod_workqueue; static struct workqueue_struct *rpciod_workqueue;
@ -1047,7 +1048,7 @@ rpciod_up(void)
struct workqueue_struct *wq; struct workqueue_struct *wq;
int error = 0; int error = 0;
down(&rpciod_sema); mutex_lock(&rpciod_mutex);
dprintk("rpciod_up: users %d\n", rpciod_users); dprintk("rpciod_up: users %d\n", rpciod_users);
rpciod_users++; rpciod_users++;
if (rpciod_workqueue) if (rpciod_workqueue)
@ -1070,14 +1071,14 @@ rpciod_up(void)
rpciod_workqueue = wq; rpciod_workqueue = wq;
error = 0; error = 0;
out: out:
up(&rpciod_sema); mutex_unlock(&rpciod_mutex);
return error; return error;
} }
void void
rpciod_down(void) rpciod_down(void)
{ {
down(&rpciod_sema); mutex_lock(&rpciod_mutex);
dprintk("rpciod_down sema %d\n", rpciod_users); dprintk("rpciod_down sema %d\n", rpciod_users);
if (rpciod_users) { if (rpciod_users) {
if (--rpciod_users) if (--rpciod_users)
@ -1094,7 +1095,7 @@ rpciod_down(void)
destroy_workqueue(rpciod_workqueue); destroy_workqueue(rpciod_workqueue);
rpciod_workqueue = NULL; rpciod_workqueue = NULL;
out: out:
up(&rpciod_sema); mutex_unlock(&rpciod_mutex);
} }
#ifdef RPC_DEBUG #ifdef RPC_DEBUG

7
net/unix/garbage.c
View File

@ -76,6 +76,7 @@
#include <linux/netdevice.h> #include <linux/netdevice.h>
#include <linux/file.h> #include <linux/file.h>
#include <linux/proc_fs.h> #include <linux/proc_fs.h>
#include <linux/mutex.h>
#include <net/sock.h> #include <net/sock.h>
#include <net/af_unix.h> #include <net/af_unix.h>
@ -169,7 +170,7 @@ static void maybe_unmark_and_push(struct sock *x)
void unix_gc(void) void unix_gc(void)
{ {
static DECLARE_MUTEX(unix_gc_sem); static DEFINE_MUTEX(unix_gc_sem);
int i; int i;
struct sock *s; struct sock *s;
struct sk_buff_head hitlist; struct sk_buff_head hitlist;
@ -179,7 +180,7 @@ void unix_gc(void)
* Avoid a recursive GC. * Avoid a recursive GC.
*/ */
if (down_trylock(&unix_gc_sem)) if (!mutex_trylock(&unix_gc_sem))
return; return;
spin_lock(&unix_table_lock); spin_lock(&unix_table_lock);
@ -308,5 +309,5 @@ void unix_gc(void)
*/ */
__skb_queue_purge(&hitlist); __skb_queue_purge(&hitlist);
up(&unix_gc_sem); mutex_unlock(&unix_gc_sem);
} }

4
net/xfrm/xfrm_policy.c
View File

@ -26,8 +26,8 @@
#include <net/xfrm.h> #include <net/xfrm.h>
#include <net/ip.h> #include <net/ip.h>
DECLARE_MUTEX(xfrm_cfg_sem); DEFINE_MUTEX(xfrm_cfg_mutex);
EXPORT_SYMBOL(xfrm_cfg_sem); EXPORT_SYMBOL(xfrm_cfg_mutex);
static DEFINE_RWLOCK(xfrm_policy_lock); static DEFINE_RWLOCK(xfrm_policy_lock);

4
net/xfrm/xfrm_user.c
View File

@ -1486,9 +1486,9 @@ static void xfrm_netlink_rcv(struct sock *sk, int len)
unsigned int qlen = 0; unsigned int qlen = 0;
do { do {
down(&xfrm_cfg_sem); mutex_lock(&xfrm_cfg_mutex);
netlink_run_queue(sk, &qlen, &xfrm_user_rcv_msg); netlink_run_queue(sk, &qlen, &xfrm_user_rcv_msg);
up(&xfrm_cfg_sem); mutex_unlock(&xfrm_cfg_mutex);
} while (qlen); } while (qlen);
} }