netdev - Re: [PATCH net-next 2/8] inet: implement lockless IP_MTU

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Message-ID: <e303dccf-7809-833a-58c7-e347d7c17610@kernel.org>
Date: Thu, 21 Sep 2023 13:03:19 -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 net-next 2/8] inet: implement lockless IP_MTU_DISCOVER

On 9/21/23 7:30 AM, Eric Dumazet wrote:
> inet->pmtudisc can be read locklessly.
> 
> Implement proper lockless reads and writes to inet->pmtudisc
> 
> ip_sock_set_mtu_discover() can now be called from arbitrary
> contexts.
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> ---
>  include/net/ip.h                | 13 ++++++++-----
>  net/ipv4/ip_output.c            |  7 ++++---
>  net/ipv4/ip_sockglue.c          | 17 ++++++-----------
>  net/ipv4/ping.c                 |  2 +-
>  net/ipv4/raw.c                  |  2 +-
>  net/ipv4/udp.c                  |  2 +-
>  net/netfilter/ipvs/ip_vs_sync.c |  2 +-
>  7 files changed, 22 insertions(+), 23 deletions(-)
> 

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