netdev - [PATCH v2 net-next 00/11] UDP/IPv6 refactoring

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Message-Id: <cover.1651153920.git.asml.silence@gmail.com>
Date:   Thu, 28 Apr 2022 14:57:55 +0100
From:   Pavel Begunkov <asml.silence@...il.com>
To:     netdev@...r.kernel.org, "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     David Ahern <dsahern@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        linux-kernel@...r.kernel.org,
        Pavel Begunkov <asml.silence@...il.com>
Subject: [PATCH v2 net-next 00/11] UDP/IPv6 refactoring

Refactor UDP/IPv6 and especially udpv6_sendmsg() paths. The end result looks
cleaner than it was before and the series also removes a bunch of instructions
and other overhead from the hot path positively affecting performance.

It was a part of a larger series, there were some perf numbers for it, see
https://lore.kernel.org/netdev/cover.1648981570.git.asml.silence@gmail.com/

v2: no code changes, just resending properly

Pavel Begunkov (11):
  ipv6: optimise ipcm6 cookie init
  udp/ipv6: refactor udpv6_sendmsg udplite checks
  udp/ipv6: move pending section of udpv6_sendmsg
  udp/ipv6: prioritise the ip6 path over ip4 checks
  udp/ipv6: optimise udpv6_sendmsg() daddr checks
  udp/ipv6: optimise out daddr reassignment
  udp/ipv6: clean up udpv6_sendmsg's saddr init
  ipv6: partially inline fl6_update_dst()
  ipv6: refactor opts push in __ip6_make_skb()
  ipv6: improve opt-less __ip6_make_skb()
  ipv6: clean up ip6_setup_cork

 include/net/ipv6.h    |  24 +++----
 net/ipv6/datagram.c   |   4 +-
 net/ipv6/exthdrs.c    |  15 ++--
 net/ipv6/ip6_output.c |  53 +++++++-------
 net/ipv6/raw.c        |   8 +--
 net/ipv6/udp.c        | 158 ++++++++++++++++++++----------------------
 net/l2tp/l2tp_ip6.c   |   8 +--
 7 files changed, 122 insertions(+), 148 deletions(-)

-- 
2.36.0