28 lines · c
1// SPDX-License-Identifier: GPL-2.02/* Copyright (c) 2020 Facebook */3#include "bpf_iter.h"4#include <bpf/bpf_helpers.h>5 6char _license[] SEC("license") = "GPL";7 8SEC("iter/bpf_map")9int 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