Re: [PATCH v10 net-next 3/6] udp: add low latency socket pollsupport

[Eric Dumazet]

On Mon, 2013-06-10 at 11:40 +0300, Eliezer Tamir wrote:
> Add upport for busy-polling on UDP sockets.
> In __udp[46]_lib_rcv add a call to sk_mark_ll() to copy the napi_id
> from the skb into the sk.
> This is done at the earliest possible moment, right after we identify
> which socket this skb is for.
> In __skb_recv_datagram When there is no data and the user
> tries to read we busy poll.
> 
> Signed-off-by: Alexander Duyck <alexander.h.duyck@xxxxxxxxx>
> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@xxxxxxxxx>
> Signed-off-by: Eliezer Tamir <eliezer.tamir@xxxxxxxxxxxxxxx>
> ---
> 
>  net/core/datagram.c |    4 ++++
>  net/ipv4/udp.c      |    6 +++++-
>  net/ipv6/udp.c      |    6 +++++-
>  3 files changed, 14 insertions(+), 2 deletions(-)

Acked-by: Eric Dumazet <edumazet@xxxxxxxxxx>


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