netdev - Re: [PATCH 4.9 stable 0/5] net: ip6 defrag: backport fixes

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Message-ID: <CAFTs51VUqReSAvr_pu3eUioJ2N4uOP4r4AAbGTadVoq657NY0A@mail.gmail.com>
Date:   Fri, 26 Apr 2019 14:26:56 -0700
From:   Peter Oskolkov <posk@...k.io>
To:     stable@...r.kernel.org, linux-netdev <netdev@...r.kernel.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        David Miller <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Florian Westphal <fw@...len.de>,
        Sasha Levin <sashal@...nel.org>,
        Captain Wiggum <captwiggum@...il.com>,
        Lars Persson <lists@...h.nu>, Peter Oskolkov <posk@...gle.com>
Subject: Re: [PATCH 4.9 stable 0/5] net: ip6 defrag: backport fixes

On Fri, Apr 26, 2019 at 8:41 AM Peter Oskolkov <posk@...gle.com> wrote:
>
> This is a backport of a 5.1rc patchset:
>   https://patchwork.ozlabs.org/cover/1029418/
>
> Which was backported into 4.19:
>   https://patchwork.ozlabs.org/cover/1081619/
>
> and into 4.14:
>   https://patchwork.ozlabs.org/cover/1089651/
>
>
> This 4.9 patchset is very close to the 4.14 patchset above
> (cherry-picks from 4.14 were almost clean).

FYI: I have a patchset that backports these into 4.4, but things got
much hairier
there, as I needed to backport three additional netfilter patches. So I'm not
going to send the patchset to the lists unless there is a real need and somebody
with enough knowledge of netfitler volunteers to review/test it (I tested
that IP defrag works, but there are netfilter-related pieces that
I understand little about).

>
>
> Eric Dumazet (1):
>   ipv6: frags: fix a lockdep false positive
>
> Florian Westphal (1):
>   ipv6: remove dependency of nf_defrag_ipv6 on ipv6 module
>
> Peter Oskolkov (3):
>   net: IP defrag: encapsulate rbtree defrag code into callable functions
>   net: IP6 defrag: use rbtrees for IPv6 defrag
>   net: IP6 defrag: use rbtrees in nf_conntrack_reasm.c
>
>  include/net/inet_frag.h                   |  16 +-
>  include/net/ipv6.h                        |  29 --
>  include/net/ipv6_frag.h                   | 111 +++++++
>  net/ieee802154/6lowpan/reassembly.c       |   2 +-
>  net/ipv4/inet_fragment.c                  | 293 ++++++++++++++++++
>  net/ipv4/ip_fragment.c                    | 295 +++---------------
>  net/ipv6/netfilter/nf_conntrack_reasm.c   | 273 +++++-----------
>  net/ipv6/netfilter/nf_defrag_ipv6_hooks.c |   3 +-
>  net/ipv6/reassembly.c                     | 361 ++++++----------------
>  net/openvswitch/conntrack.c               |   1 +
>  10 files changed, 631 insertions(+), 753 deletions(-)
>  create mode 100644 include/net/ipv6_frag.h
>
> --
> 2.21.0.593.g511ec345e18-goog
>