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bpf: remove the verifier ops from program structure

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Since the verifier ops don't have to be associated with
the program for its entire lifetime we can move it to
verifier's struct bpf_verifier_env.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski
2017-10-16 16:40:54 -07:00
committed by David S. Miller
parent 7de16e3a35
commit 00176a34d9
4 changed files with 18 additions and 17 deletions
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kernel/bpf/syscall.c
-10
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@@ -748,22 +748,12 @@ static const struct bpf_prog_ops * const bpf_prog_types[] = {
#undef BPF_MAP_TYPE
};
static const struct bpf_verifier_ops * const bpf_verifier_ops[] = {
#define BPF_PROG_TYPE(_id, _name) \
[_id] = & _name ## _verifier_ops,
#define BPF_MAP_TYPE(_id, _ops)
#include <linux/bpf_types.h>
#undef BPF_PROG_TYPE
#undef BPF_MAP_TYPE
};
static int find_prog_type(enum bpf_prog_type type, struct bpf_prog *prog)
{
if (type >= ARRAY_SIZE(bpf_prog_types) || !bpf_prog_types[type])
return -EINVAL;
prog->aux->ops = bpf_prog_types[type];
prog->aux->vops = bpf_verifier_ops[type];
prog->type = type;
return 0;
}