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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2010-06-14 03:02:24 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-06-16 05:12:44 +0400 |
| commit | d27f9b35827ec91d71d3561c127a0a8135fb470d (patch) | |
| tree | a6a9c67628bf3b807d8bf24375fe6c075b25af32 /net/ipv4 | |
| parent | 2bbdf389a9432270147c8e8e35b021ad61772f65 (diff) | |
| download | linux-d27f9b35827ec91d71d3561c127a0a8135fb470d.tar.xz | |
ip_frag: Remove some atomic ops
Instead of doing one atomic operation per frag, we can factorize them.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/ip_fragment.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c index 75347ea70ea0..963c3689d0af 100644 --- a/net/ipv4/ip_fragment.c +++ b/net/ipv4/ip_fragment.c @@ -556,7 +556,6 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *prev, skb_shinfo(head)->frag_list = head->next; skb_push(head, head->data - skb_network_header(head)); - atomic_sub(head->truesize, &qp->q.net->mem); for (fp=head->next; fp; fp = fp->next) { head->data_len += fp->len; @@ -566,8 +565,8 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *prev, else if (head->ip_summed == CHECKSUM_COMPLETE) head->csum = csum_add(head->csum, fp->csum); head->truesize += fp->truesize; - atomic_sub(fp->truesize, &qp->q.net->mem); } + atomic_sub(head->truesize, &qp->q.net->mem); head->next = NULL; head->dev = dev; |