// SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2020 Facebook */ #include <vmlinux.h> #include <bpf/bpf_helpers.h> char _license[] SEC("license") = "GPL"; SEC("iter/bpf_map") int dump_bpf_map(struct bpf_iter__bpf_map *ctx) { struct seq_file *seq = ctx->meta->seq; __u64 seq_num = ctx->meta->seq_num; struct bpf_map *map = ctx->map; if (map == (void *)0) { BPF_SEQ_PRINTF(seq, " %%%%%% END %%%%%%\n"); return 0; } if (seq_num == 0) BPF_SEQ_PRINTF(seq, " id refcnt usercnt locked_vm\n"); BPF_SEQ_PRINTF(seq, "%8u %8ld %8ld %10lu\n", map->id, map->refcnt.counter, map->usercnt.counter, 0LLU); return 0; }