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Message-ID: <e3639580-5a84-bf03-970d-56163c3f68af@kernel.org> Date: Thu, 14 Sep 2023 08:55:53 -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 03/14] ipv6: lockless IPV6_MULTICAST_HOPS implementation On 9/12/23 10:02 AM, Eric Dumazet wrote: > This fixes data-races around np->mcast_hops, > and make IPV6_MULTICAST_HOPS lockless. > > Note that np->mcast_hops is never negative, > thus can fit an u8 field instead of s16. > > Signed-off-by: Eric Dumazet <edumazet@...gle.com> > --- > include/linux/ipv6.h | 9 +-------- > include/net/ipv6.h | 2 +- > net/dccp/ipv6.c | 2 +- > net/ipv6/ipv6_sockglue.c | 28 +++++++++++++++------------- > net/ipv6/tcp_ipv6.c | 3 ++- > net/netfilter/ipvs/ip_vs_sync.c | 2 +- > 6 files changed, 21 insertions(+), 25 deletions(-) > Reviewed-by: David Ahern <dsahern@...nel.org>
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