bpf, xdp: Implement LINK_UPDATE for BPF XDP link

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Add support for LINK_UPDATE command for BPF XDP link to enable reliable
replacement of underlying BPF program.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200722064603.3350758-6-andriin@fb.com

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Andrii Nakryiko 2020-07-21 23:45:58 -07:00 • committed by Alexei Starovoitov

parent aa8d3a716b

commit 026a4c28e1

1 changed files with 43 additions and 0 deletions

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net/core/dev.c

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