netdev - [PATCH net-next 0/2] ipv6: optimize rt6_score

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Message-ID: <20230313201732.887488-1-edumazet@google.com>
Date:   Mon, 13 Mar 2023 20:17:30 +0000
From:   Eric Dumazet <edumazet@...gle.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     David Ahern <dsahern@...nel.org>, netdev@...r.kernel.org,
        eric.dumazet@...il.com, Eric Dumazet <edumazet@...gle.com>
Subject: [PATCH net-next 0/2] ipv6: optimize rt6_score_route()

This patch series remove an expensive rwlock acquisition
in rt6_check_neigh()/rt6_score_route().

First patch adds missing annotations, and second patch implements
the optimization.

Eric Dumazet (2):
  neighbour: annotate lockless accesses to n->nud_state
  ipv6: remove one read_lock()/read_unlock() pair in rt6_check_neigh()

 drivers/net/vxlan/vxlan_core.c  |  4 ++--
 include/net/neighbour.h         |  2 +-
 net/bridge/br_arp_nd_proxy.c    |  4 ++--
 net/bridge/br_netfilter_hooks.c |  3 ++-
 net/core/filter.c               |  4 ++--
 net/core/neighbour.c            | 28 ++++++++++++++--------------
 net/ipv4/arp.c                  |  8 ++++----
 net/ipv4/fib_semantics.c        |  4 ++--
 net/ipv4/nexthop.c              |  4 ++--
 net/ipv4/route.c                |  2 +-
 net/ipv6/ip6_output.c           |  2 +-
 net/ipv6/ndisc.c                |  4 ++--
 net/ipv6/route.c                | 10 +++++-----
 13 files changed, 40 insertions(+), 39 deletions(-)

-- 
2.40.0.rc1.284.g88254d51c5-goog