1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2020 Facebook */
3 #include "bpf_iter.h"
4 #include <bpf/bpf_helpers.h>
5
6 char _license[] SEC("license") = "GPL";
7
8 SEC("iter/bpf_map")
9 int dump_bpf_map(struct bpf_iter__bpf_map *ctx)
10 {
11 struct seq_file *seq = ctx->meta->seq;
12 __u64 seq_num = ctx->meta->seq_num;
13 struct bpf_map *map = ctx->map;
14
15 if (map == (void *)0) {
16 BPF_SEQ_PRINTF(seq, " %%%%%% END %%%%%%\n");
17 return 0;
18 }
19
20 if (seq_num == 0)
21 BPF_SEQ_PRINTF(seq, " id refcnt usercnt locked_vm\n");
22
23 BPF_SEQ_PRINTF(seq, "%8u %8ld %8ld %10lu\n", map->id, map->refcnt.counter,
24 map->usercnt.counter,
25 0LLU);
26 return 0;
27 }
28
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