From: Eric Dumazet
Date: Wed, 17 Aug 2016 07:48:36 -0700
> From: Eric Dumazet
>
> While chasing tcp_xmit_retransmit_queue() kasan issue, I found
> that we could avoid reading sacked field of skb that we wont send,
> possibly removing one cache line miss.
>
> Very minor change in slow path, but
On Wed, Aug 17, 2016 at 10:48 AM, Eric Dumazet wrote:
>
> From: Eric Dumazet
>
> While chasing tcp_xmit_retransmit_queue() kasan issue, I found
> that we could avoid reading sacked field of skb that we wont send,
> possibly removing one cache line miss.
>
> Very minor change in slow path, but why
From: Eric Dumazet
While chasing tcp_xmit_retransmit_queue() kasan issue, I found
that we could avoid reading sacked field of skb that we wont send,
possibly removing one cache line miss.
Very minor change in slow path, but why not ? ;)
Signed-off-by: Eric Dumazet
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net/ipv4/tcp_output.c |
