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Message-ID: <bd4dad72-2f4f-79a0-8660-fd5ea6f95c06@kernel.org> Date: Thu, 14 Sep 2023 09:10:20 -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 13/14] ipv6: lockless IPV6_MTU_DISCOVER implementation On 9/12/23 10:02 AM, Eric Dumazet wrote: > Most np->pmtudisc reads are racy. > > Move this 3bit field on a full byte, add annotations > and make IPV6_MTU_DISCOVER setsockopt() lockless. > > Signed-off-by: Eric Dumazet <edumazet@...gle.com> > --- > include/linux/ipv6.h | 5 ++--- > include/net/ip6_route.h | 14 +++++++++----- > net/ipv6/ip6_output.c | 4 ++-- > net/ipv6/ipv6_sockglue.c | 17 ++++++++--------- > net/ipv6/raw.c | 2 +- > net/ipv6/udp.c | 2 +- > net/netfilter/ipvs/ip_vs_sync.c | 2 +- > 7 files changed, 24 insertions(+), 22 deletions(-) > Reviewed-by: David Ahern <dsahern@...nel.org>
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