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inet: frag: move evictor calls into frag_find function

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First step to move eviction handling into a work queue.

We lose two spots that accounted evicted fragments in MIB counters.

Accounting will be restored since the upcoming work-queue evictor
invokes the frag queue timer callbacks instead.

Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Florian Westphal 2014-07-24 16:50:31 +02:00 • committed by David S. Miller
commit 86e93e470c
6 changed files with 9 additions and 35 deletions
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4
net/ipv6/netfilter/nf_conntrack_reasm.c
View file

@ -594,10 +594,6 @@ struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb, u32 user)
hdr = ipv6_hdr(clone);
fhdr = (struct frag_hdr *)skb_transport_header(clone);
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,
ip6_frag_ecn(hdr));
if (fq == NULL) {

6
net/ipv6/reassembly.c
View file

@ -519,7 +519,6 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
struct frag_queue *fq;
const struct ipv6hdr *hdr = ipv6_hdr(skb);
struct net *net = dev_net(skb_dst(skb)->dev);
int evicted;
if (IP6CB(skb)->flags & IP6SKB_FRAGMENTED)
goto fail_hdr;
@ -548,11 +547,6 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
return 1;
}
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,
ip6_frag_ecn(hdr));
if (fq != NULL) {