linux-kernel - [RFC nf-next 0/2] netfilter: bpf: support prog update

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Message-Id: <1702467945-38866-1-git-send-email-alibuda@linux.alibaba.com>
Date:   Wed, 13 Dec 2023 19:45:43 +0800
From:   "D. Wythe" <alibuda@...ux.alibaba.com>
To:     pablo@...filter.org, kadlec@...filter.org, fw@...len.de
Cc:     bpf@...r.kernel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, coreteam@...filter.org,
        netfilter-devel@...r.kernel.org, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
        ast@...nel.org, "D. Wythe" <alibuda@...ux.alibaba.com>
Subject: [RFC nf-next 0/2] netfilter: bpf: support prog update

From: "D. Wythe" <alibuda@...ux.alibaba.com>

This patches attempt to support updating of progs with
bpf netfilter link, introducing a new RCU-protected context
to access the prog, and adding a corresponding test case.

D. Wythe (2):
  netfilter: bpf: support prog update
  selftests/bpf: Add netfilter link prog update test

 net/netfilter/nf_bpf_link.c                        | 124 ++++++++++++++++++---
 .../bpf/prog_tests/netfilter_link_update_prog.c    |  83 ++++++++++++++
 .../bpf/progs/test_netfilter_link_update_prog.c    |  24 ++++
 3 files changed, 218 insertions(+), 13 deletions(-)
 create mode 100644 tools/testing/selftests/bpf/prog_tests/netfilter_link_update_prog.c
 create mode 100644 tools/testing/selftests/bpf/progs/test_netfilter_link_update_prog.c

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