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libbpf: Add bpf_link detach APIs

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Add low-level bpf_link_detach() API. Also add higher-level bpf_link__detach()
one.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20200731182830.286260-3-andriin@fb.com
This commit is contained in:
Andrii Nakryiko
2020-07-31 11:28:27 -07:00
committed by Alexei Starovoitov
parent 73b11c2ab0
commit 2e49527e52
6 changed files with 25 additions and 0 deletions
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5
tools/lib/bpf/libbpf.c
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@@ -7748,6 +7748,11 @@ struct bpf_link *bpf_link__open(const char *path)
return link;
}
int bpf_link__detach(struct bpf_link *link)
{
return bpf_link_detach(link->fd) ? -errno : 0;
}
int bpf_link__pin(struct bpf_link *link, const char *path)
{
int err;