diff options
| -rw-r--r-- | net/bridge/netfilter/ebtables.c | 10 | ||||
| -rw-r--r-- | net/netfilter/core.c | 11 | ||||
| -rw-r--r-- | net/netfilter/ipvs/ip_vs_ctl.c | 19 | ||||
| -rw-r--r-- | net/netfilter/nf_sockopt.c | 8 | ||||
| -rw-r--r-- | net/netfilter/x_tables.c | 47 |
5 files changed, 22 insertions, 73 deletions
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c index 1059ed3bc255..6d69631b9f4d 100644 --- a/net/bridge/netfilter/ebtables.c +++ b/net/bridge/netfilter/ebtables.c @@ -327,10 +327,7 @@ find_inlist_lock_noload(struct list_head *head, const char *name, int *error, char name[EBT_FUNCTION_MAXNAMELEN]; } *e; - *error = mutex_lock_interruptible(mutex); - if (*error != 0) - return NULL; - + mutex_lock(mutex); list_for_each_entry(e, head, list) { if (strcmp(e->name, name) == 0) return e; @@ -1203,10 +1200,7 @@ ebt_register_table(struct net *net, const struct ebt_table *input_table) table->private = newinfo; rwlock_init(&table->lock); - ret = mutex_lock_interruptible(&ebt_mutex); - if (ret != 0) - goto free_chainstack; - + mutex_lock(&ebt_mutex); list_for_each_entry(t, &net->xt.tables[NFPROTO_BRIDGE], list) { if (strcmp(t->name, table->name) == 0) { ret = -EEXIST; diff --git a/net/netfilter/core.c b/net/netfilter/core.c index 1fbab0cdd302..a93c97f106d4 100644 --- a/net/netfilter/core.c +++ b/net/netfilter/core.c @@ -35,11 +35,7 @@ EXPORT_SYMBOL_GPL(nf_ipv6_ops); int nf_register_afinfo(const struct nf_afinfo *afinfo) { - int err; - - err = mutex_lock_interruptible(&afinfo_mutex); - if (err < 0) - return err; + mutex_lock(&afinfo_mutex); RCU_INIT_POINTER(nf_afinfo[afinfo->family], afinfo); mutex_unlock(&afinfo_mutex); return 0; @@ -68,11 +64,8 @@ static DEFINE_MUTEX(nf_hook_mutex); int nf_register_hook(struct nf_hook_ops *reg) { struct nf_hook_ops *elem; - int err; - err = mutex_lock_interruptible(&nf_hook_mutex); - if (err < 0) - return err; + mutex_lock(&nf_hook_mutex); list_for_each_entry(elem, &nf_hooks[reg->pf][reg->hooknum], list) { if (reg->priority < elem->priority) break; diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c index 8416307fdd1d..fd3f444a4f96 100644 --- a/net/netfilter/ipvs/ip_vs_ctl.c +++ b/net/netfilter/ipvs/ip_vs_ctl.c @@ -2271,10 +2271,7 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len) cmd == IP_VS_SO_SET_STOPDAEMON) { struct ip_vs_daemon_user *dm = (struct ip_vs_daemon_user *)arg; - if (mutex_lock_interruptible(&ipvs->sync_mutex)) { - ret = -ERESTARTSYS; - goto out_dec; - } + mutex_lock(&ipvs->sync_mutex); if (cmd == IP_VS_SO_SET_STARTDAEMON) ret = start_sync_thread(net, dm->state, dm->mcast_ifn, dm->syncid); @@ -2284,11 +2281,7 @@ do_ip_vs_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len) goto out_dec; } - if (mutex_lock_interruptible(&__ip_vs_mutex)) { - ret = -ERESTARTSYS; - goto out_dec; - } - + mutex_lock(&__ip_vs_mutex); if (cmd == IP_VS_SO_SET_FLUSH) { /* Flush the virtual service */ ret = ip_vs_flush(net, false); @@ -2573,9 +2566,7 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len) struct ip_vs_daemon_user d[2]; memset(&d, 0, sizeof(d)); - if (mutex_lock_interruptible(&ipvs->sync_mutex)) - return -ERESTARTSYS; - + mutex_lock(&ipvs->sync_mutex); if (ipvs->sync_state & IP_VS_STATE_MASTER) { d[0].state = IP_VS_STATE_MASTER; strlcpy(d[0].mcast_ifn, ipvs->master_mcast_ifn, @@ -2594,9 +2585,7 @@ do_ip_vs_get_ctl(struct sock *sk, int cmd, void __user *user, int *len) return ret; } - if (mutex_lock_interruptible(&__ip_vs_mutex)) - return -ERESTARTSYS; - + mutex_lock(&__ip_vs_mutex); switch (cmd) { case IP_VS_SO_GET_VERSION: { diff --git a/net/netfilter/nf_sockopt.c b/net/netfilter/nf_sockopt.c index f042ae521557..c68c1e58b362 100644 --- a/net/netfilter/nf_sockopt.c +++ b/net/netfilter/nf_sockopt.c @@ -26,9 +26,7 @@ int nf_register_sockopt(struct nf_sockopt_ops *reg) struct nf_sockopt_ops *ops; int ret = 0; - if (mutex_lock_interruptible(&nf_sockopt_mutex) != 0) - return -EINTR; - + mutex_lock(&nf_sockopt_mutex); list_for_each_entry(ops, &nf_sockopts, list) { if (ops->pf == reg->pf && (overlap(ops->set_optmin, ops->set_optmax, @@ -65,9 +63,7 @@ static struct nf_sockopt_ops *nf_sockopt_find(struct sock *sk, u_int8_t pf, { struct nf_sockopt_ops *ops; - if (mutex_lock_interruptible(&nf_sockopt_mutex) != 0) - return ERR_PTR(-EINTR); - + mutex_lock(&nf_sockopt_mutex); list_for_each_entry(ops, &nf_sockopts, list) { if (ops->pf == pf) { if (!try_module_get(ops->owner)) diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c index 47b978bc3100..272ae4d6fdf4 100644 --- a/net/netfilter/x_tables.c +++ b/net/netfilter/x_tables.c @@ -71,18 +71,14 @@ static const char *const xt_prefix[NFPROTO_NUMPROTO] = { static const unsigned int xt_jumpstack_multiplier = 2; /* Registration hooks for targets. */ -int -xt_register_target(struct xt_target *target) +int xt_register_target(struct xt_target *target) { u_int8_t af = target->family; - int ret; - ret = mutex_lock_interruptible(&xt[af].mutex); - if (ret != 0) - return ret; + mutex_lock(&xt[af].mutex); list_add(&target->list, &xt[af].target); mutex_unlock(&xt[af].mutex); - return ret; + return 0; } EXPORT_SYMBOL(xt_register_target); @@ -125,20 +121,14 @@ xt_unregister_targets(struct xt_target *target, unsigned int n) } EXPORT_SYMBOL(xt_unregister_targets); -int -xt_register_match(struct xt_match *match) +int xt_register_match(struct xt_match *match) { u_int8_t af = match->family; - int ret; - - ret = mutex_lock_interruptible(&xt[af].mutex); - if (ret != 0) - return ret; + mutex_lock(&xt[af].mutex); list_add(&match->list, &xt[af].match); mutex_unlock(&xt[af].mutex); - - return ret; + return 0; } EXPORT_SYMBOL(xt_register_match); @@ -194,9 +184,7 @@ struct xt_match *xt_find_match(u8 af, const char *name, u8 revision) struct xt_match *m; int err = -ENOENT; - if (mutex_lock_interruptible(&xt[af].mutex) != 0) - return ERR_PTR(-EINTR); - + mutex_lock(&xt[af].mutex); list_for_each_entry(m, &xt[af].match, list) { if (strcmp(m->name, name) == 0) { if (m->revision == revision) { @@ -239,9 +227,7 @@ struct xt_target *xt_find_target(u8 af, const char *name, u8 revision) struct xt_target *t; int err = -ENOENT; - if (mutex_lock_interruptible(&xt[af].mutex) != 0) - return ERR_PTR(-EINTR); - + mutex_lock(&xt[af].mutex); list_for_each_entry(t, &xt[af].target, list) { if (strcmp(t->name, name) == 0) { if (t->revision == revision) { @@ -323,10 +309,7 @@ int xt_find_revision(u8 af, const char *name, u8 revision, int target, { int have_rev, best = -1; - if (mutex_lock_interruptible(&xt[af].mutex) != 0) { - *err = -EINTR; - return 1; - } + mutex_lock(&xt[af].mutex); if (target == 1) have_rev = target_revfn(af, name, revision, &best); else @@ -732,9 +715,7 @@ struct xt_table *xt_find_table_lock(struct net *net, u_int8_t af, { struct xt_table *t; - if (mutex_lock_interruptible(&xt[af].mutex) != 0) - return ERR_PTR(-EINTR); - + mutex_lock(&xt[af].mutex); list_for_each_entry(t, &net->xt.tables[af], list) if (strcmp(t->name, name) == 0 && try_module_get(t->me)) return t; @@ -883,10 +864,7 @@ struct xt_table *xt_register_table(struct net *net, goto out; } - ret = mutex_lock_interruptible(&xt[table->af].mutex); - if (ret != 0) - goto out_free; - + mutex_lock(&xt[table->af].mutex); /* Don't autoload: we'd eat our tail... */ list_for_each_entry(t, &net->xt.tables[table->af], list) { if (strcmp(t->name, table->name) == 0) { @@ -911,9 +889,8 @@ struct xt_table *xt_register_table(struct net *net, mutex_unlock(&xt[table->af].mutex); return table; - unlock: +unlock: mutex_unlock(&xt[table->af].mutex); -out_free: kfree(table); out: return ERR_PTR(ret); |