bpf: Introduce bpf_map ID

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This patch generates an unique ID for each created bpf_map.
The approach is similar to the earlier patch for bpf_prog ID.

It is worth to note that the bpf_map's ID and bpf_prog's ID
are in two independent ID spaces and both have the same valid range:
[1, INT_MAX).

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>

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Martin KaFai Lau 2017-06-05 12:15:47 -07:00 • committed by David S. Miller

parent dc4bb0e235

commit f3f1c054c2

2 changed files with 34 additions and 1 deletions

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1

include/linux/bpf.h

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34

kernel/bpf/syscall.c

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