On Wed, 28 Feb 2007 11:49:49 -0800 (PST)
David Miller <[EMAIL PROTECTED]> wrote:
>
> commit 71b270d966cd42e29eabcd39434c4ad4d33aa2be
> Author: David S. Miller <[EMAIL PROTECTED]>
> Date: Tue Feb 27 19:28:07 2007 -0800
>
> [TCP]: Kill fastpath_{skb,cnt}_hint.
>
> Now that we have per-skb fack_counts and an interval
> search mechanism for the retransmit queue, we don't
> need these things any more.
>
> Instead, as we traverse the SACK blocks to tag the
> queue, we use the RB tree to lookup the first SKB
> covering the SACK block by sequence number.
>
> Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
I would be happy to see this go. Have you tried this code with
a SACK DoS stream? I.e. before you could consume a huge amount
of cpu time by giving an certain bad sequence of SACK's. This
code should have a better worst case run time.
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