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[NETNS][FRAGS]: Make the LRU list per namespace.

Browse source 
The inet_frags.lru_list is used for evicting only, so we have
to make it per-namespace, to evict only those fragments, who's
namespace exceeded its high threshold, but not the whole hash.
Besides, this helps to avoid long loops  in evictor.

The spinlock is not per-namespace because it protects the
hash table as well, which is global.

Signed-off-by: Pavel Emelyanov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Pavel Emelyanov 2008-01-22 06:11:48 -08:00 • committed by David S. Miller
commit 3140c25c82
5 changed files with 8 additions and 8 deletions
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2
net/ipv6/netfilter/nf_conntrack_reasm.c
View file

@ -385,7 +385,7 @@ static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
fq->q.last_in |= FIRST_IN;
}
write_lock(&nf_frags.lock);
list_move_tail(&fq->q.lru_list, &nf_frags.lru_list);
list_move_tail(&fq->q.lru_list, &nf_init_frags.lru_list);
write_unlock(&nf_frags.lock);
return 0;

2
net/ipv6/reassembly.c
View file

@ -424,7 +424,7 @@ static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
return ip6_frag_reasm(fq, prev, dev);
write_lock(&ip6_frags.lock);
list_move_tail(&fq->q.lru_list, &ip6_frags.lru_list);
list_move_tail(&fq->q.lru_list, &fq->q.net->lru_list);
write_unlock(&ip6_frags.lock);
return -1;