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libbpf: Support exclusive map creation

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Implement setters and getters that allow map to be registered as
exclusive to the specified program. The registration should be done
before the exclusive program is loaded.

Signed-off-by: KP Singh <kpsingh@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20250914215141.15144-5-kpsingh@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
KP Singh
2025-09-14 23:51:33 +02:00
committed by Andrii Nakryiko
parent 1202ada5c1
commit 59ed98f687
5 changed files with 101 additions and 2 deletions
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src/bpf.h
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@@ -54,9 +54,12 @@ struct bpf_map_create_opts {
__s32 value_type_btf_obj_fd;
__u32 token_fd;
const void *excl_prog_hash;
__u32 excl_prog_hash_size;
size_t :0;
};
#define bpf_map_create_opts__last_field token_fd
#define bpf_map_create_opts__last_field excl_prog_hash_size
LIBBPF_API int bpf_map_create(enum bpf_map_type map_type,
const char *map_name,