summaryrefslogtreecommitdiff
path: root/net/ipv4/netfilter/arp_tables.c
diff options
context:
space:
mode:
authorDavid S. Miller <davem@davemloft.net>2011-04-19 11:24:06 -0700
committerDavid S. Miller <davem@davemloft.net>2011-04-19 11:24:06 -0700
commit4805347c1eb12cfe79f42a12a5442ee01590a9c0 (patch)
treecb9d8b3cfc78d8411f0cea7b06c6472cdd35bb9a /net/ipv4/netfilter/arp_tables.c
parente1943424e43974f85b82bb31eaf832823bf49ce7 (diff)
parent91eb7c08c6cb3b8eeba1c61f5753c56dcb77f018 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6
Diffstat (limited to 'net/ipv4/netfilter/arp_tables.c')
-rw-r--r--net/ipv4/netfilter/arp_tables.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index 89bc7e66d59..fd7a3f68917 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -260,6 +260,7 @@ unsigned int arpt_do_table(struct sk_buff *skb,
void *table_base;
const struct xt_table_info *private;
struct xt_action_param acpar;
+ unsigned int addend;
if (!pskb_may_pull(skb, arp_hdr_len(skb->dev)))
return NF_DROP;
@@ -267,7 +268,8 @@ unsigned int arpt_do_table(struct sk_buff *skb,
indev = in ? in->name : nulldevname;
outdev = out ? out->name : nulldevname;
- xt_info_rdlock_bh();
+ local_bh_disable();
+ addend = xt_write_recseq_begin();
private = table->private;
table_base = private->entries[smp_processor_id()];
@@ -338,7 +340,8 @@ unsigned int arpt_do_table(struct sk_buff *skb,
/* Verdict */
break;
} while (!acpar.hotdrop);
- xt_info_rdunlock_bh();
+ xt_write_recseq_end(addend);
+ local_bh_enable();
if (acpar.hotdrop)
return NF_DROP;
@@ -712,7 +715,7 @@ static void get_counters(const struct xt_table_info *t,
unsigned int i;
for_each_possible_cpu(cpu) {
- seqlock_t *lock = &per_cpu(xt_info_locks, cpu).lock;
+ seqcount_t *s = &per_cpu(xt_recseq, cpu);
i = 0;
xt_entry_foreach(iter, t->entries[cpu], t->size) {
@@ -720,10 +723,10 @@ static void get_counters(const struct xt_table_info *t,
unsigned int start;
do {
- start = read_seqbegin(lock);
+ start = read_seqcount_begin(s);
bcnt = iter->counters.bcnt;
pcnt = iter->counters.pcnt;
- } while (read_seqretry(lock, start));
+ } while (read_seqcount_retry(s, start));
ADD_COUNTER(counters[i], bcnt, pcnt);
++i;
@@ -1115,6 +1118,7 @@ static int do_add_counters(struct net *net, const void __user *user,
int ret = 0;
void *loc_cpu_entry;
struct arpt_entry *iter;
+ unsigned int addend;
#ifdef CONFIG_COMPAT
struct compat_xt_counters_info compat_tmp;
@@ -1171,12 +1175,12 @@ static int do_add_counters(struct net *net, const void __user *user,
/* Choose the copy that is on our node */
curcpu = smp_processor_id();
loc_cpu_entry = private->entries[curcpu];
- xt_info_wrlock(curcpu);
+ addend = xt_write_recseq_begin();
xt_entry_foreach(iter, loc_cpu_entry, private->size) {
ADD_COUNTER(iter->counters, paddc[i].bcnt, paddc[i].pcnt);
++i;
}
- xt_info_wrunlock(curcpu);
+ xt_write_recseq_end(addend);
unlock_up_free:
local_bh_enable();
xt_table_unlock(t);