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Date: Thu, 21 Sep 2023 13:03:19 -0600
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Subject: Re: [PATCH net-next 2/8] inet: implement lockless IP_MTU_DISCOVER
Content-Language: en-US
To: Eric Dumazet <edumazet@google.com>, "David S . Miller"
 <davem@davemloft.net>, Jakub Kicinski <kuba@kernel.org>,
 Paolo Abeni <pabeni@redhat.com>
Cc: netdev@vger.kernel.org, eric.dumazet@gmail.com
References: <20230921133021.1995349-1-edumazet@google.com>
 <20230921133021.1995349-3-edumazet@google.com>
From: David Ahern <dsahern@kernel.org>
In-Reply-To: <20230921133021.1995349-3-edumazet@google.com>
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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@google.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@kernel.org>