LXR linux/tools/testing/selftests/bpf/progs/bpf_iter_test

   1// SPDX-License-Identifier: GPL-2.0
   2/* Copyright (c) 2020 Facebook */
   3#include "bpf_iter.h"
   4#include <bpf/bpf_helpers.h>
   5
   6char _license[] SEC("license") = "GPL";
   7
   8SEC("iter/task")
   9int dump_task(struct bpf_iter__task *ctx)
  10{
  11        struct seq_file *seq = ctx->meta->seq;
  12        struct task_struct *task = ctx->task;
  13        int tgid;
  14
  15        tgid = task->tgid;
  16        bpf_seq_write(seq, &tgid, sizeof(tgid));
  17        return 0;
  18}
  19