ipv6: unify fragment thresh handling code
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Michal Kubeček <mkubecek@suse.cz>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 54274c3..1af12fde 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -566,11 +566,9 @@
hdr = ipv6_hdr(clone);
fhdr = (struct frag_hdr *)skb_transport_header(clone);
- if (atomic_read(&net->nf_frag.frags.mem) > net->nf_frag.frags.high_thresh) {
- local_bh_disable();
- inet_frag_evictor(&net->nf_frag.frags, &nf_frags);
- local_bh_enable();
- }
+ local_bh_disable();
+ inet_frag_evictor(&net->nf_frag.frags, &nf_frags, false);
+ local_bh_enable();
fq = fq_find(net, fhdr->identification, user, &hdr->saddr, &hdr->daddr);
if (fq == NULL) {
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index cf74f4e..da8a4e3 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -131,15 +131,6 @@
}
EXPORT_SYMBOL(ip6_frag_init);
-static void ip6_evictor(struct net *net, struct inet6_dev *idev)
-{
- int evicted;
-
- evicted = inet_frag_evictor(&net->ipv6.frags, &ip6_frags);
- if (evicted)
- IP6_ADD_STATS_BH(net, idev, IPSTATS_MIB_REASMFAILS, evicted);
-}
-
void ip6_expire_frag_queue(struct net *net, struct frag_queue *fq,
struct inet_frags *frags)
{
@@ -515,6 +506,7 @@
struct frag_queue *fq;
const struct ipv6hdr *hdr = ipv6_hdr(skb);
struct net *net = dev_net(skb_dst(skb)->dev);
+ int evicted;
IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_REASMREQDS);
@@ -539,8 +531,10 @@
return 1;
}
- if (atomic_read(&net->ipv6.frags.mem) > net->ipv6.frags.high_thresh)
- ip6_evictor(net, ip6_dst_idev(skb_dst(skb)));
+ evicted = inet_frag_evictor(&net->ipv6.frags, &ip6_frags, false);
+ if (evicted)
+ IP6_ADD_STATS_BH(net, ip6_dst_idev(skb_dst(skb)),
+ IPSTATS_MIB_REASMFAILS, evicted);
fq = fq_find(net, fhdr->identification, &hdr->saddr, &hdr->daddr);
if (fq != NULL) {