Messages in this thread | | | From | "D. Wythe" <> | Subject | [RFC nf-next v1 0/2] netfilter: bpf: support prog update | Date | Fri, 15 Dec 2023 11:07:31 +0800 |
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From: "D. Wythe" <alibuda@linux.alibaba.com>
This patches attempt to implements updating of progs within bpf netfilter link, allowing user update their ebpf netfilter prog in hot update manner.
Besides, a corresponding test case has been added to verify whether the update works.
-- v1: 1. remove unnecessary context, access the prog directly via rcu. 2. remove synchronize_rcu(), dealloc the nf_link via kfree_rcu. 3. check the dead flag during the update.
D. Wythe (2): netfilter: bpf: support prog update selftests/bpf: Add netfilter link prog update test
net/netfilter/nf_bpf_link.c | 68 ++++++++++++++---- .../bpf/prog_tests/netfilter_link_update_prog.c | 83 ++++++++++++++++++++++ .../bpf/progs/test_netfilter_link_update_prog.c | 24 +++++++ 3 files changed, 160 insertions(+), 15 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
-- 1.8.3.1
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