netdev - [bpf PATCH v3 0/6] sockmap fixes

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Message-ID: <160556562395.73229.12161576665124541961.stgit@john-XPS-13-9370>
Date:   Mon, 16 Nov 2020 14:27:23 -0800
From:   John Fastabend <john.fastabend@...il.com>
To:     jakub@...udflare.com, ast@...nel.org, daniel@...earbox.net
Cc:     john.fastabend@...il.com, bpf@...r.kernel.org,
        netdev@...r.kernel.org
Subject: [bpf PATCH v3 0/6] sockmap fixes 

This includes fixes for sockmap found after I started running skmsg and
verdict programs on systems that I use daily. To date with attached
series I've been running for multiple weeks without seeing any issues
on systems doing calls, mail, movies, etc.

Also I started running packetdrill and after this series last remaining
fix needed is to handle MSG_EOR correctly. This will come as a follow
up to this, but because we use sendpage to pass pages into TCP stack
we need to enable TCP side some.

v3:
 - Simplify patch5 as suggested by Jakub
v2:
 - Added patch3 to use truesize in sk_rmem_schedule (Daniel)
 - cleaned up some small nits... goto and extra set of brackets (Daniel)


---

John Fastabend (6):
      bpf, sockmap: fix partial copy_page_to_iter so progress can still be made
      bpf, sockmap: Ensure SO_RCVBUF memory is observed on ingress redirect
      bpf, sockmap: Use truesize with sk_rmem_schedule()
      bpf, sockmap: Avoid returning unneeded EAGAIN when redirecting to self
      bpf, sockmap: Handle memory acct if skb_verdict prog redirects to self
      bpf, sockmap: Avoid failures from skb_to_sgvec when skb has frag_list


 net/core/skmsg.c   | 87 +++++++++++++++++++++++++++++++++++++++-------
 net/ipv4/tcp_bpf.c |  3 +-
 2 files changed, 76 insertions(+), 14 deletions(-)

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