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