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(parent: aef56f2) | patch
libbpf: Update a bpf_link with another struct_ops.
authorKui-Feng Lee <kuifeng@meta.com>
Thu, 23 Mar 2023 03:24:03 +0000 (20:24 -0700)
committerMartin KaFai Lau <martin.lau@kernel.org>
Thu, 23 Mar 2023 05:53:02 +0000 (22:53 -0700)
commit912dd4b0c2a50a839301520badb241f36664ae07
tree389be76c86c3de80341b8bf7678b213194c98744tree | snapshot
parentaef56f2e918bf8fc8de25f0b36e8c2aba44116eccommit | diff
libbpf: Update a bpf_link with another struct_ops.

Introduce bpf_link__update_map(), which allows to atomically update
underlying struct_ops implementation for given struct_ops BPF link.

Also add old_map_fd to struct bpf_link_update_opts to handle
BPF_F_REPLACE feature.

Signed-off-by: Kui-Feng Lee <kuifeng@meta.com>
Link: https://lore.kernel.org/r/20230323032405.3735486-7-kuifeng@meta.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
tools/lib/bpf/bpf.c diff | blob | history
tools/lib/bpf/bpf.h diff | blob | history
tools/lib/bpf/libbpf.c diff | blob | history
tools/lib/bpf/libbpf.h diff | blob | history
tools/lib/bpf/libbpf.map diff | blob | history
Domain: System / Kernel;