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authorJozsef Kadlecsik <kadlec@blackhole.kfki.hu>2011-03-25 11:10:29 +0100
committerJozsef Kadlecsik <kadlec@blackhole.kfki.hu>2011-03-25 11:10:29 +0100
commitd90a2f5b8998f9063ff8aa7ae0fb301e3933f709 (patch)
tree5788a1833816977c3f6004136d591e6737c9102e /kernel/net/netfilter/ipset/ip_set_bitmap_ipmac.c
parent48509af4bc2a60c368c46f1351ddf5370e012bc0 (diff)
References are protected by rwlock instead of mutex
The timeout variant of the list:set type must reference the member sets. However, its garbage collector runs at timer interrupt so the mutex protection of the references is a no go. Therefore the reference protection is converted to rwlock.
Diffstat (limited to 'kernel/net/netfilter/ipset/ip_set_bitmap_ipmac.c')
-rw-r--r--kernel/net/netfilter/ipset/ip_set_bitmap_ipmac.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/net/netfilter/ipset/ip_set_bitmap_ipmac.c b/kernel/net/netfilter/ipset/ip_set_bitmap_ipmac.c
index 5e79017..00a3324 100644
--- a/kernel/net/netfilter/ipset/ip_set_bitmap_ipmac.c
+++ b/kernel/net/netfilter/ipset/ip_set_bitmap_ipmac.c
@@ -434,8 +434,7 @@ bitmap_ipmac_head(struct ip_set *set, struct sk_buff *skb)
goto nla_put_failure;
NLA_PUT_IPADDR4(skb, IPSET_ATTR_IP, htonl(map->first_ip));
NLA_PUT_IPADDR4(skb, IPSET_ATTR_IP_TO, htonl(map->last_ip));
- NLA_PUT_NET32(skb, IPSET_ATTR_REFERENCES,
- htonl(atomic_read(&set->ref) - 1));
+ NLA_PUT_NET32(skb, IPSET_ATTR_REFERENCES, htonl(set->ref - 1));
NLA_PUT_NET32(skb, IPSET_ATTR_MEMSIZE,
htonl(sizeof(*map)
+ (map->last_ip - map->first_ip + 1) * map->dsize));