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bpf: Add map_name to bpf_map_info

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This patch allows userspace to specify a name for a map
during BPF_MAP_CREATE.

The map's name can later be exported to user space
via BPF_OBJ_GET_INFO_BY_FD.

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Alexei Starovoitov <ast@fb.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Martin KaFai Lau 2017-09-27 14:37:53 -07:00 • committed by David S. Miller
parent cb4d2b3f03
commit ad5b177bd7
3 changed files with 9 additions and 1 deletions
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1
include/linux/bpf.h
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@ -56,6 +56,7 @@ struct bpf_map {
struct work_struct work;
atomic_t usercnt;
struct bpf_map *inner_map_meta;
u8 name[BPF_OBJ_NAME_LEN];
};
/* function argument constraints */