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[NET]: sem2mutex part 2

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Semaphore to mutex conversion.

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

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:
Ingo Molnar 2006-03-20 22:35:41 -08:00 committed by David S. Miller
parent 6613f82dd2
commit 57b47a53ec
13 changed files with 107 additions and 99 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/sunrpc/svcsock.h
View File

@ -36,7 +36,7 @@ struct svc_sock {
struct list_head sk_deferred; /* deferred requests that need to
* be revisted */
struct semaphore sk_sem; /* to serialize sending data */
struct mutex sk_mutex; /* to serialize sending data */
int (*sk_recvfrom)(struct svc_rqst *rqstp);
int (*sk_sendto)(struct svc_rqst *rqstp);

3
include/net/af_unix.h
View File

@ -4,6 +4,7 @@
#include <linux/config.h>
#include <linux/socket.h>
#include <linux/un.h>
#include <linux/mutex.h>
#include <net/sock.h>
extern void unix_inflight(struct file *fp);
@ -71,7 +72,7 @@ struct unix_sock {
struct unix_address *addr;
struct dentry *dentry;
struct vfsmount *mnt;
struct semaphore readsem;
struct mutex readlock;
struct sock *peer;
struct sock *other;
struct sock *gc_tree;

4
net/atm/common.c
View File

@ -451,12 +451,12 @@ int vcc_connect(struct socket *sock, int itf, short vpi, int vci)
dev = try_then_request_module(atm_dev_lookup(itf), "atm-device-%d", itf);
} else {
dev = NULL;
down(&atm_dev_mutex);
mutex_lock(&atm_dev_mutex);
if (!list_empty(&atm_devs)) {
dev = list_entry(atm_devs.next, struct atm_dev, dev_list);
atm_dev_hold(dev);
}
up(&atm_dev_mutex);
mutex_unlock(&atm_dev_mutex);
}
if (!dev)
return -ENODEV;

32
net/atm/resources.c
View File

@ -18,6 +18,8 @@
#include <linux/bitops.h>
#include <linux/capability.h>
#include <linux/delay.h>
#include <linux/mutex.h>
#include <net/sock.h> /* for struct sock */
#include "common.h"
@ -26,7 +28,7 @@
LIST_HEAD(atm_devs);
DECLARE_MUTEX(atm_dev_mutex);
DEFINE_MUTEX(atm_dev_mutex);
static struct atm_dev *__alloc_atm_dev(const char *type)
{
@ -65,9 +67,9 @@ struct atm_dev *atm_dev_lookup(int number)
{
struct atm_dev *dev;
down(&atm_dev_mutex);
mutex_lock(&atm_dev_mutex);
dev = __atm_dev_lookup(number);
up(&atm_dev_mutex);
mutex_unlock(&atm_dev_mutex);
return dev;
}
@ -83,11 +85,11 @@ struct atm_dev *atm_dev_register(const char *type, const struct atmdev_ops *ops,
type);
return NULL;
}
down(&atm_dev_mutex);
mutex_lock(&atm_dev_mutex);
if (number != -1) {
if ((inuse = __atm_dev_lookup(number))) {
atm_dev_put(inuse);
up(&atm_dev_mutex);
mutex_unlock(&atm_dev_mutex);
kfree(dev);
return NULL;
}
@ -112,12 +114,12 @@ struct atm_dev *atm_dev_register(const char *type, const struct atmdev_ops *ops,
printk(KERN_ERR "atm_dev_register: "
"atm_proc_dev_register failed for dev %s\n",
type);
up(&atm_dev_mutex);
mutex_unlock(&atm_dev_mutex);
kfree(dev);
return NULL;
}
list_add_tail(&dev->dev_list, &atm_devs);
up(&atm_dev_mutex);
mutex_unlock(&atm_dev_mutex);
return dev;
}
@ -133,9 +135,9 @@ void atm_dev_deregister(struct atm_dev *dev)
* with same number can appear, such we need deregister proc,
* release async all vccs and remove them from vccs list too
*/
down(&atm_dev_mutex);
mutex_lock(&atm_dev_mutex);
list_del(&dev->dev_list);
up(&atm_dev_mutex);
mutex_unlock(&atm_dev_mutex);
atm_dev_release_vccs(dev);
atm_proc_dev_deregister(dev);
@ -196,16 +198,16 @@ int atm_dev_ioctl(unsigned int cmd, void __user *arg)
return -EFAULT;
if (get_user(len, &iobuf->length))
return -EFAULT;
down(&atm_dev_mutex);
mutex_lock(&atm_dev_mutex);
list_for_each(p, &atm_devs)
size += sizeof(int);
if (size > len) {
up(&atm_dev_mutex);
mutex_unlock(&atm_dev_mutex);
return -E2BIG;
}
tmp_buf = kmalloc(size, GFP_ATOMIC);
if (!tmp_buf) {
up(&atm_dev_mutex);
mutex_unlock(&atm_dev_mutex);
return -ENOMEM;
}
tmp_p = tmp_buf;
@ -213,7 +215,7 @@ int atm_dev_ioctl(unsigned int cmd, void __user *arg)
dev = list_entry(p, struct atm_dev, dev_list);
*tmp_p++ = dev->number;
}
up(&atm_dev_mutex);
mutex_unlock(&atm_dev_mutex);
error = ((copy_to_user(buf, tmp_buf, size)) ||
put_user(size, &iobuf->length))
? -EFAULT : 0;
@ -400,13 +402,13 @@ static __inline__ void *dev_get_idx(loff_t left)
void *atm_dev_seq_start(struct seq_file *seq, loff_t *pos)
{
down(&atm_dev_mutex);
mutex_lock(&atm_dev_mutex);
return *pos ? dev_get_idx(*pos) : (void *) 1;
}
void atm_dev_seq_stop(struct seq_file *seq, void *v)
{
up(&atm_dev_mutex);
mutex_unlock(&atm_dev_mutex);
}
void *atm_dev_seq_next(struct seq_file *seq, void *v, loff_t *pos)

3
net/atm/resources.h
View File

@ -8,10 +8,11 @@
#include <linux/config.h>
#include <linux/atmdev.h>
#include <linux/mutex.h>
extern struct list_head atm_devs;
extern struct semaphore atm_dev_mutex;
extern struct mutex atm_dev_mutex;
int atm_dev_ioctl(unsigned int cmd, void __user *arg);

91
net/bridge/netfilter/ebtables.c
View File

@ -35,6 +35,7 @@
#define ASSERT_READ_LOCK(x)
#define ASSERT_WRITE_LOCK(x)
#include <linux/netfilter_ipv4/listhelp.h>
#include <linux/mutex.h>
#if 0
/* use this for remote debugging
@ -81,7 +82,7 @@ static void print_string(char *str)
static DECLARE_MUTEX(ebt_mutex);
static DEFINE_MUTEX(ebt_mutex);
static LIST_HEAD(ebt_tables);
static LIST_HEAD(ebt_targets);
static LIST_HEAD(ebt_matches);
@ -296,18 +297,18 @@ letscontinue:
/* If it succeeds, returns element and locks mutex */
static inline void *
find_inlist_lock_noload(struct list_head *head, const char *name, int *error,
struct semaphore *mutex)
struct mutex *mutex)
{
void *ret;
*error = down_interruptible(mutex);
*error = mutex_lock_interruptible(mutex);
if (*error != 0)
return NULL;
ret = list_named_find(head, name);
if (!ret) {
*error = -ENOENT;
up(mutex);
mutex_unlock(mutex);
}
return ret;
}
@ -317,7 +318,7 @@ find_inlist_lock_noload(struct list_head *head, const char *name, int *error,
#else
static void *
find_inlist_lock(struct list_head *head, const char *name, const char *prefix,
int *error, struct semaphore *mutex)
int *error, struct mutex *mutex)
{
void *ret;
@ -331,25 +332,25 @@ find_inlist_lock(struct list_head *head, const char *name, const char *prefix,
#endif
static inline struct ebt_table *
find_table_lock(const char *name, int *error, struct semaphore *mutex)
find_table_lock(const char *name, int *error, struct mutex *mutex)
{
return find_inlist_lock(&ebt_tables, name, "ebtable_", error, mutex);
}
static inline struct ebt_match *
find_match_lock(const char *name, int *error, struct semaphore *mutex)
find_match_lock(const char *name, int *error, struct mutex *mutex)
{
return find_inlist_lock(&ebt_matches, name, "ebt_", error, mutex);
}
static inline struct ebt_watcher *
find_watcher_lock(const char *name, int *error, struct semaphore *mutex)
find_watcher_lock(const char *name, int *error, struct mutex *mutex)
{
return find_inlist_lock(&ebt_watchers, name, "ebt_", error, mutex);
}
static inline struct ebt_target *
find_target_lock(const char *name, int *error, struct semaphore *mutex)
find_target_lock(const char *name, int *error, struct mutex *mutex)
{
return find_inlist_lock(&ebt_targets, name, "ebt_", error, mutex);
}
@ -369,10 +370,10 @@ ebt_check_match(struct ebt_entry_match *m, struct ebt_entry *e,
return ret;
m->u.match = match;
if (!try_module_get(match->me)) {
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
return -ENOENT;
}
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
if (match->check &&
match->check(name, hookmask, e, m->data, m->match_size) != 0) {
BUGPRINT("match->check failed\n");
@ -398,10 +399,10 @@ ebt_check_watcher(struct ebt_entry_watcher *w, struct ebt_entry *e,
return ret;
w->u.watcher = watcher;
if (!try_module_get(watcher->me)) {
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
return -ENOENT;
}
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
if (watcher->check &&
watcher->check(name, hookmask, e, w->data, w->watcher_size) != 0) {
BUGPRINT("watcher->check failed\n");
@ -638,11 +639,11 @@ ebt_check_entry(struct ebt_entry *e, struct ebt_table_info *newinfo,
if (!target)
goto cleanup_watchers;
if (!try_module_get(target->me)) {
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
ret = -ENOENT;
goto cleanup_watchers;
}
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
t->u.target = target;
if (t->u.target == &ebt_standard_target) {
@ -1015,7 +1016,7 @@ static int do_replace(void __user *user, unsigned int len)
t->private = newinfo;
write_unlock_bh(&t->lock);
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
/* so, a user can change the chains while having messed up her counter
allocation. Only reason why this is done is because this way the lock
is held only once, while this doesn't bring the kernel into a
@ -1045,7 +1046,7 @@ static int do_replace(void __user *user, unsigned int len)
return ret;
free_unlock:
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
free_iterate:
EBT_ENTRY_ITERATE(newinfo->entries, newinfo->entries_size,
ebt_cleanup_entry, NULL);
@ -1068,69 +1069,69 @@ int ebt_register_target(struct ebt_target *target)
{
int ret;
ret = down_interruptible(&ebt_mutex);
ret = mutex_lock_interruptible(&ebt_mutex);
if (ret != 0)
return ret;
if (!list_named_insert(&ebt_targets, target)) {
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
return -EEXIST;
}
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
return 0;
}
void ebt_unregister_target(struct ebt_target *target)
{
down(&ebt_mutex);
mutex_lock(&ebt_mutex);
LIST_DELETE(&ebt_targets, target);
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
}
int ebt_register_match(struct ebt_match *match)
{
int ret;
ret = down_interruptible(&ebt_mutex);
ret = mutex_lock_interruptible(&ebt_mutex);
if (ret != 0)
return ret;
if (!list_named_insert(&ebt_matches, match)) {
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
return -EEXIST;
}
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
return 0;
}
void ebt_unregister_match(struct ebt_match *match)
{
down(&ebt_mutex);
mutex_lock(&ebt_mutex);
LIST_DELETE(&ebt_matches, match);
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
}
int ebt_register_watcher(struct ebt_watcher *watcher)
{
int ret;
ret = down_interruptible(&ebt_mutex);
ret = mutex_lock_interruptible(&ebt_mutex);
if (ret != 0)
return ret;
if (!list_named_insert(&ebt_watchers, watcher)) {
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
return -EEXIST;
}
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
return 0;
}
void ebt_unregister_watcher(struct ebt_watcher *watcher)
{
down(&ebt_mutex);
mutex_lock(&ebt_mutex);
LIST_DELETE(&ebt_watchers, watcher);
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
}
int ebt_register_table(struct ebt_table *table)
@ -1178,7 +1179,7 @@ int ebt_register_table(struct ebt_table *table)
table->private = newinfo;
rwlock_init(&table->lock);
ret = down_interruptible(&ebt_mutex);
ret = mutex_lock_interruptible(&ebt_mutex);
if (ret != 0)
goto free_chainstack;
@ -1194,10 +1195,10 @@ int ebt_register_table(struct ebt_table *table)
goto free_unlock;
}
list_prepend(&ebt_tables, table);
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
return 0;
free_unlock:
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
free_chainstack:
if (newinfo->chainstack) {
for_each_cpu(i)
@ -1218,9 +1219,9 @@ void ebt_unregister_table(struct ebt_table *table)
BUGPRINT("Request to unregister NULL table!!!\n");
return;
}
down(&ebt_mutex);
mutex_lock(&ebt_mutex);
LIST_DELETE(&ebt_tables, table);
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
vfree(table->private->entries);
if (table->private->chainstack) {
for_each_cpu(i)
@ -1281,7 +1282,7 @@ static int update_counters(void __user *user, unsigned int len)
write_unlock_bh(&t->lock);
ret = 0;
unlock_mutex:
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
free_tmp:
vfree(tmp);
return ret;
@ -1328,7 +1329,7 @@ static inline int ebt_make_names(struct ebt_entry *e, char *base, char *ubase)
return 0;
}
/* called with ebt_mutex down */
/* called with ebt_mutex locked */
static int copy_everything_to_user(struct ebt_table *t, void __user *user,
int *len, int cmd)
{
@ -1440,7 +1441,7 @@ static int do_ebt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
case EBT_SO_GET_INIT_INFO:
if (*len != sizeof(struct ebt_replace)){
ret = -EINVAL;
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
break;
}
if (cmd == EBT_SO_GET_INFO) {
@ -1452,7 +1453,7 @@ static int do_ebt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
tmp.entries_size = t->table->entries_size;
tmp.valid_hooks = t->table->valid_hooks;
}
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
if (copy_to_user(user, &tmp, *len) != 0){
BUGPRINT("c2u Didn't work\n");
ret = -EFAULT;
@ -1464,11 +1465,11 @@ static int do_ebt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
case EBT_SO_GET_ENTRIES:
case EBT_SO_GET_INIT_ENTRIES:
ret = copy_everything_to_user(t, user, len, cmd);
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
break;
default:
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
ret = -EINVAL;
}
@ -1484,9 +1485,9 @@ static int __init init(void)
{
int ret;
down(&ebt_mutex);
mutex_lock(&ebt_mutex);
list_named_insert(&ebt_targets, &ebt_standard_target);
up(&ebt_mutex);
mutex_unlock(&ebt_mutex);
if ((ret = nf_register_sockopt(&ebt_sockopts)) < 0)
return ret;

19
net/ipv4/ipvs/ip_vs_app.c
View File

@ -31,6 +31,7 @@
#include <linux/stat.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/mutex.h>
#include <net/ip_vs.h>
@ -40,7 +41,7 @@ EXPORT_SYMBOL(register_ip_vs_app_inc);
/* ipvs application list head */
static LIST_HEAD(ip_vs_app_list);
static DECLARE_MUTEX(__ip_vs_app_mutex);
static DEFINE_MUTEX(__ip_vs_app_mutex);
/*
@ -173,11 +174,11 @@ register_ip_vs_app_inc(struct ip_vs_app *app, __u16 proto, __u16 port)
{
int result;
down(&__ip_vs_app_mutex);
mutex_lock(&__ip_vs_app_mutex);
result = ip_vs_app_inc_new(app, proto, port);
up(&__ip_vs_app_mutex);
mutex_unlock(&__ip_vs_app_mutex);
return result;
}
@ -191,11 +192,11 @@ int register_ip_vs_app(struct ip_vs_app *app)
/* increase the module use count */
ip_vs_use_count_inc();
down(&__ip_vs_app_mutex);
mutex_lock(&__ip_vs_app_mutex);
list_add(&app->a_list, &ip_vs_app_list);
up(&__ip_vs_app_mutex);
mutex_unlock(&__ip_vs_app_mutex);
return 0;
}
@ -209,7 +210,7 @@ void unregister_ip_vs_app(struct ip_vs_app *app)
{
struct ip_vs_app *inc, *nxt;
down(&__ip_vs_app_mutex);
mutex_lock(&__ip_vs_app_mutex);
list_for_each_entry_safe(inc, nxt, &app->incs_list, a_list) {
ip_vs_app_inc_release(inc);
@ -217,7 +218,7 @@ void unregister_ip_vs_app(struct ip_vs_app *app)
list_del(&app->a_list);
up(&__ip_vs_app_mutex);
mutex_unlock(&__ip_vs_app_mutex);
/* decrease the module use count */
ip_vs_use_count_dec();
@ -498,7 +499,7 @@ static struct ip_vs_app *ip_vs_app_idx(loff_t pos)
static void *ip_vs_app_seq_start(struct seq_file *seq, loff_t *pos)
{
down(&__ip_vs_app_mutex);
mutex_lock(&__ip_vs_app_mutex);
return *pos ? ip_vs_app_idx(*pos - 1) : SEQ_START_TOKEN;
}
@ -530,7 +531,7 @@ static void *ip_vs_app_seq_next(struct seq_file *seq, void *v, loff_t *pos)
static void ip_vs_app_seq_stop(struct seq_file *seq, void *v)
{
up(&__ip_vs_app_mutex);
mutex_unlock(&__ip_vs_app_mutex);
}
static int ip_vs_app_seq_show(struct seq_file *seq, void *v)

2
net/ipv4/netfilter/arp_tables.c
View File

@ -22,7 +22,7 @@
#include <linux/init.h>
#include <asm/uaccess.h>
#include <asm/semaphore.h>
#include <linux/mutex.h>
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter_arp/arp_tables.h>

2
net/ipv4/netfilter/ip_tables.c
View File

@ -25,7 +25,7 @@
#include <linux/icmp.h>
#include <net/ip.h>
#include <asm/uaccess.h>
#include <asm/semaphore.h>
#include <linux/mutex.h>
#include <linux/proc_fs.h>
#include <linux/err.h>
#include <linux/cpumask.h>

2
net/ipv6/netfilter/ip6_tables.c
View File

@ -29,7 +29,7 @@
#include <linux/icmpv6.h>
#include <net/ipv6.h>
#include <asm/uaccess.h>
#include <asm/semaphore.h>
#include <linux/mutex.h>
#include <linux/proc_fs.h>
#include <linux/cpumask.h>

16
net/netfilter/nf_conntrack_core.c
View File

@ -185,7 +185,7 @@ static struct {
DEFINE_RWLOCK(nf_ct_cache_lock);
/* This avoids calling kmem_cache_create() with same name simultaneously */
DECLARE_MUTEX(nf_ct_cache_mutex);
static DEFINE_MUTEX(nf_ct_cache_mutex);
extern struct nf_conntrack_protocol nf_conntrack_generic_protocol;
struct nf_conntrack_protocol *
@ -278,7 +278,7 @@ int nf_conntrack_register_cache(u_int32_t features, const char *name,
return -EINVAL;
}
down(&nf_ct_cache_mutex);
mutex_lock(&nf_ct_cache_mutex);
write_lock_bh(&nf_ct_cache_lock);
/* e.g: multiple helpers are loaded */
@ -294,7 +294,7 @@ int nf_conntrack_register_cache(u_int32_t features, const char *name,
ret = -EBUSY;
write_unlock_bh(&nf_ct_cache_lock);
up(&nf_ct_cache_mutex);
mutex_unlock(&nf_ct_cache_mutex);
return ret;
}
write_unlock_bh(&nf_ct_cache_lock);
@ -338,7 +338,7 @@ int nf_conntrack_register_cache(u_int32_t features, const char *name,
out_free_name:
kfree(cache_name);
out_up_mutex:
up(&nf_ct_cache_mutex);
mutex_unlock(&nf_ct_cache_mutex);
return ret;
}
@ -353,12 +353,12 @@ void nf_conntrack_unregister_cache(u_int32_t features)
* slab cache.
*/
DEBUGP("nf_conntrack_unregister_cache: 0x%04x\n", features);
down(&nf_ct_cache_mutex);
mutex_lock(&nf_ct_cache_mutex);
write_lock_bh(&nf_ct_cache_lock);
if (--nf_ct_cache[features].use > 0) {
write_unlock_bh(&nf_ct_cache_lock);
up(&nf_ct_cache_mutex);
mutex_unlock(&nf_ct_cache_mutex);
return;
}
cachep = nf_ct_cache[features].cachep;
@ -373,7 +373,7 @@ void nf_conntrack_unregister_cache(u_int32_t features)
kmem_cache_destroy(cachep);
kfree(name);
up(&nf_ct_cache_mutex);
mutex_unlock(&nf_ct_cache_mutex);
}
int
@ -1408,6 +1408,8 @@ void __nf_ct_refresh_acct(struct nf_conn *ct,
#include <linux/netfilter/nfnetlink.h>
#include <linux/netfilter/nfnetlink_conntrack.h>
#include <linux/mutex.h>
/* Generic function for tcp/udp/sctp/dccp and alike. This needs to be
* in ip_conntrack_core, since we don't want the protocols to autoload

8
net/sunrpc/svcsock.c
View File

@ -1296,13 +1296,13 @@ svc_send(struct svc_rqst *rqstp)
xb->page_len +
xb->tail[0].iov_len;
/* Grab svsk->sk_sem to serialize outgoing data. */
down(&svsk->sk_sem);
/* Grab svsk->sk_mutex to serialize outgoing data. */
mutex_lock(&svsk->sk_mutex);
if (test_bit(SK_DEAD, &svsk->sk_flags))
len = -ENOTCONN;
else
len = svsk->sk_sendto(rqstp);
up(&svsk->sk_sem);
mutex_unlock(&svsk->sk_mutex);
svc_sock_release(rqstp);
if (len == -ECONNREFUSED || len == -ENOTCONN || len == -EAGAIN)
@ -1351,7 +1351,7 @@ svc_setup_socket(struct svc_serv *serv, struct socket *sock,
svsk->sk_lastrecv = get_seconds();
INIT_LIST_HEAD(&svsk->sk_deferred);
INIT_LIST_HEAD(&svsk->sk_ready);
sema_init(&svsk->sk_sem, 1);
mutex_init(&svsk->sk_mutex);
/* Initialize the socket */
if (sock->type == SOCK_DGRAM)

22
net/unix/af_unix.c
View File

@ -566,7 +566,7 @@ static struct sock * unix_create1(struct socket *sock)
u->mnt = NULL;
spin_lock_init(&u->lock);
atomic_set(&u->inflight, sock ? 0 : -1);
init_MUTEX(&u->readsem); /* single task reading lock */
mutex_init(&u->readlock); /* single task reading lock */
init_waitqueue_head(&u->peer_wait);
unix_insert_socket(unix_sockets_unbound, sk);
out:
@ -623,7 +623,7 @@ static int unix_autobind(struct socket *sock)
struct unix_address * addr;
int err;
down(&u->readsem);
mutex_lock(&u->readlock);
err = 0;
if (u->addr)
@ -661,7 +661,7 @@ retry:
spin_unlock(&unix_table_lock);
err = 0;
out: up(&u->readsem);
out: mutex_unlock(&u->readlock);
return err;
}
@ -744,7 +744,7 @@ static int unix_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
goto out;
addr_len = err;
down(&u->readsem);
mutex_lock(&u->readlock);
err = -EINVAL;
if (u->addr)
@ -816,7 +816,7 @@ static int unix_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
out_unlock:
spin_unlock(&unix_table_lock);
out_up:
up(&u->readsem);
mutex_unlock(&u->readlock);
out:
return err;
@ -1545,7 +1545,7 @@ static int unix_dgram_recvmsg(struct kiocb *iocb, struct socket *sock,
msg->msg_namelen = 0;
down(&u->readsem);
mutex_lock(&u->readlock);
skb = skb_recv_datagram(sk, flags, noblock, &err);
if (!skb)
@ -1600,7 +1600,7 @@ static int unix_dgram_recvmsg(struct kiocb *iocb, struct socket *sock,
out_free:
skb_free_datagram(sk,skb);
out_unlock:
up(&u->readsem);
mutex_unlock(&u->readlock);
out:
return err;
}
@ -1676,7 +1676,7 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
memset(&tmp_scm, 0, sizeof(tmp_scm));
}
down(&u->readsem);
mutex_lock(&u->readlock);
do
{
@ -1700,7 +1700,7 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
err = -EAGAIN;
if (!timeo)
break;
up(&u->readsem);
mutex_unlock(&u->readlock);
timeo = unix_stream_data_wait(sk, timeo);
@ -1708,7 +1708,7 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
err = sock_intr_errno(timeo);
goto out;
}
down(&u->readsem);
mutex_lock(&u->readlock);
continue;
}
@ -1774,7 +1774,7 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
}
} while (size);
up(&u->readsem);
mutex_unlock(&u->readlock);
scm_recv(sock, msg, siocb->scm, flags);
out:
return copied ? : err;