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Diffstat (limited to 'net/netfilter/nfnetlink_acct.c')
-rw-r--r--net/netfilter/nfnetlink_acct.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/net/netfilter/nfnetlink_acct.c b/net/netfilter/nfnetlink_acct.c
index d44d89b56127..9898fb4d0512 100644
--- a/net/netfilter/nfnetlink_acct.c
+++ b/net/netfilter/nfnetlink_acct.c
@@ -11,6 +11,7 @@
#include <linux/kernel.h>
#include <linux/skbuff.h>
#include <linux/atomic.h>
+#include <linux/refcount.h>
#include <linux/netlink.h>
#include <linux/rculist.h>
#include <linux/slab.h>
@@ -32,7 +33,7 @@ struct nf_acct {
atomic64_t bytes;
unsigned long flags;
struct list_head head;
- atomic_t refcnt;
+ refcount_t refcnt;
char name[NFACCT_NAME_MAX];
struct rcu_head rcu_head;
char data[0];
@@ -123,7 +124,7 @@ static int nfnl_acct_new(struct net *net, struct sock *nfnl,
atomic64_set(&nfacct->pkts,
be64_to_cpu(nla_get_be64(tb[NFACCT_PKTS])));
}
- atomic_set(&nfacct->refcnt, 1);
+ refcount_set(&nfacct->refcnt, 1);
list_add_tail_rcu(&nfacct->head, &net->nfnl_acct_list);
return 0;
}
@@ -138,7 +139,7 @@ nfnl_acct_fill_info(struct sk_buff *skb, u32 portid, u32 seq, u32 type,
u64 pkts, bytes;
u32 old_flags;
- event |= NFNL_SUBSYS_ACCT << 8;
+ event = nfnl_msg_type(NFNL_SUBSYS_ACCT, event);
nlh = nlmsg_put(skb, portid, seq, event, sizeof(*nfmsg), flags);
if (nlh == NULL)
goto nlmsg_failure;
@@ -166,7 +167,7 @@ nfnl_acct_fill_info(struct sk_buff *skb, u32 portid, u32 seq, u32 type,
NFACCT_PAD) ||
nla_put_be64(skb, NFACCT_BYTES, cpu_to_be64(bytes),
NFACCT_PAD) ||
- nla_put_be32(skb, NFACCT_USE, htonl(atomic_read(&acct->refcnt))))
+ nla_put_be32(skb, NFACCT_USE, htonl(refcount_read(&acct->refcnt))))
goto nla_put_failure;
if (acct->flags & NFACCT_F_QUOTA) {
u64 *quota = (u64 *)acct->data;
@@ -243,7 +244,8 @@ nfacct_filter_alloc(const struct nlattr * const attr)
struct nlattr *tb[NFACCT_FILTER_MAX + 1];
int err;
- err = nla_parse_nested(tb, NFACCT_FILTER_MAX, attr, filter_policy);
+ err = nla_parse_nested(tb, NFACCT_FILTER_MAX, attr, filter_policy,
+ NULL);
if (err < 0)
return ERR_PTR(err);
@@ -329,7 +331,7 @@ static int nfnl_acct_try_del(struct nf_acct *cur)
/* We want to avoid races with nfnl_acct_put. So only when the current
* refcnt is 1, we decrease it to 0.
*/
- if (atomic_cmpxchg(&cur->refcnt, 1, 0) == 1) {
+ if (refcount_dec_if_one(&cur->refcnt)) {
/* We are protected by nfnl mutex. */
list_del_rcu(&cur->head);
kfree_rcu(cur, rcu_head);
@@ -413,7 +415,7 @@ struct nf_acct *nfnl_acct_find_get(struct net *net, const char *acct_name)
if (!try_module_get(THIS_MODULE))
goto err;
- if (!atomic_inc_not_zero(&cur->refcnt)) {
+ if (!refcount_inc_not_zero(&cur->refcnt)) {
module_put(THIS_MODULE);
goto err;
}
@@ -429,7 +431,7 @@ EXPORT_SYMBOL_GPL(nfnl_acct_find_get);
void nfnl_acct_put(struct nf_acct *acct)
{
- if (atomic_dec_and_test(&acct->refcnt))
+ if (refcount_dec_and_test(&acct->refcnt))
kfree_rcu(acct, rcu_head);
module_put(THIS_MODULE);
@@ -502,7 +504,7 @@ static void __net_exit nfnl_acct_net_exit(struct net *net)
list_for_each_entry_safe(cur, tmp, &net->nfnl_acct_list, head) {
list_del_rcu(&cur->head);
- if (atomic_dec_and_test(&cur->refcnt))
+ if (refcount_dec_and_test(&cur->refcnt))
kfree_rcu(cur, rcu_head);
}
}