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Message-ID: <823f7b14-864f-6d60-99f7-e22c64e16488@kernel.org>
Date: Thu, 14 Sep 2023 09:11:11 -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 14/14] ipv6: lockless IPV6_FLOWINFO_SEND
implementation
On 9/12/23 10:02 AM, Eric Dumazet wrote:
> np->sndflow reads are racy.
>
> Use one bit ftom atomic inet->inet_flags instead,
> IPV6_FLOWINFO_SEND setsockopt() can be lockless.
>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> ---
> include/linux/ipv6.h | 3 +--
> include/net/inet_sock.h | 1 +
> net/dccp/ipv6.c | 2 +-
> net/ipv4/ping.c | 3 +--
> net/ipv6/af_inet6.c | 2 +-
> net/ipv6/datagram.c | 7 ++++---
> net/ipv6/ipv6_sockglue.c | 13 ++++++-------
> net/ipv6/ping.c | 2 +-
> net/ipv6/raw.c | 2 +-
> net/ipv6/tcp_ipv6.c | 2 +-
> net/ipv6/udp.c | 2 +-
> net/l2tp/l2tp_ip6.c | 4 ++--
> net/sctp/ipv6.c | 3 ++-
> 13 files changed, 23 insertions(+), 23 deletions(-)
>
Reviewed-by: David Ahern <dsahern@...nel.org>
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