netdev - Re: [PATCH v2 net-next 3/8] inet: implement lockless IP

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Date: Fri, 22 Sep 2023 07:07:56 -0600
From: David Ahern <dsahern@...nel.org>
To: Eric Dumazet <edumazet@...gle.com>, "David S . Miller"
 <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>,
 Paolo Abeni <pabeni@...hat.com>
Cc: netdev@...r.kernel.org, eric.dumazet@...il.com
Subject: Re: [PATCH v2 net-next 3/8] inet: implement lockless IP_TOS

On 9/21/23 9:42 PM, Eric Dumazet wrote:
> Some reads of inet->tos are racy.
> 
> Add needed READ_ONCE() annotations and convert IP_TOS option lockless.
> 
> v2: missing changes in include/net/route.h (David Ahern)
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> ---
>  include/net/ip.h                              |  3 +-
>  include/net/route.h                           |  4 +--
>  net/dccp/ipv4.c                               |  2 +-
>  net/ipv4/inet_diag.c                          |  2 +-
>  net/ipv4/ip_output.c                          |  4 +--
>  net/ipv4/ip_sockglue.c                        | 29 ++++++++-----------
>  net/ipv4/tcp_ipv4.c                           |  9 +++---
>  net/mptcp/sockopt.c                           |  8 ++---
>  net/sctp/protocol.c                           |  4 +--
>  .../selftests/net/mptcp/mptcp_connect.sh      |  2 +-
>  10 files changed, 31 insertions(+), 36 deletions(-)
> 

Reviewed-by: David Ahern <dsahern@...nel.org>