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| author | Shan Wei <shanwei@cn.fujitsu.com> | 2010-06-14 16:28:23 +0200 |
|---|---|---|
| committer | Patrick McHardy <kaber@trash.net> | 2010-06-14 16:28:23 +0200 |
| commit | 841a5940eb872d70dad2b9ee7f946d8fd13a8c22 (patch) | |
| tree | 7727cf76129dbb783f02059517bc293183f545db /net/ipv6 | |
| parent | c86ee67c7c4bbab2818f653eb00a70671821624a (diff) | |
| download | linux-3.10-841a5940eb872d70dad2b9ee7f946d8fd13a8c22.tar.gz linux-3.10-841a5940eb872d70dad2b9ee7f946d8fd13a8c22.tar.bz2 linux-3.10-841a5940eb872d70dad2b9ee7f946d8fd13a8c22.zip | |
netfilter: defrag: remove one redundant atomic ops
Instead of doing one atomic operation per frag, we can factorize them.
Reported from Eric Dumazet.
Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/netfilter/nf_conntrack_reasm.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c index 6fb890187de..bc5b86d477c 100644 --- a/net/ipv6/netfilter/nf_conntrack_reasm.c +++ b/net/ipv6/netfilter/nf_conntrack_reasm.c @@ -442,7 +442,6 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev) skb_shinfo(head)->frag_list = head->next; skb_reset_transport_header(head); skb_push(head, head->data - skb_network_header(head)); - atomic_sub(head->truesize, &nf_init_frags.mem); for (fp=head->next; fp; fp = fp->next) { head->data_len += fp->len; @@ -452,8 +451,8 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev) else if (head->ip_summed == CHECKSUM_COMPLETE) head->csum = csum_add(head->csum, fp->csum); head->truesize += fp->truesize; - atomic_sub(fp->truesize, &nf_init_frags.mem); } + atomic_sub(head->truesize, &nf_init_frags.mem); head->next = NULL; head->dev = dev; |