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e626a13f6f
Drop bpf_iter.h header which uses vmlinux.h but re-defines a bunch of iterator structures and some of BPF constants for use in BPF iterator selftests. None of that is necessary when fresh vmlinux.h header is generated for vmlinux image that matches latest selftests. So drop ugly hacks and have a nice plain vmlinux.h usage everywhere. We could do the same with all the kfunc __ksym redefinitions, but that has dependency on very fresh pahole, so I'm not addressing that here. Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/r/20241029203919.1948941-1-andrii@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
41 lines
878 B
C
41 lines
878 B
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2020 Facebook */
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#include <vmlinux.h>
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#include <bpf/bpf_helpers.h>
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char _license[] SEC("license") = "GPL";
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int count = 0;
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int tgid = 0;
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int last_tgid = 0;
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int unique_tgid_count = 0;
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SEC("iter/task_file")
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int dump_task_file(struct bpf_iter__task_file *ctx)
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{
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struct seq_file *seq = ctx->meta->seq;
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struct task_struct *task = ctx->task;
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struct file *file = ctx->file;
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__u32 fd = ctx->fd;
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if (task == (void *)0 || file == (void *)0)
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return 0;
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if (ctx->meta->seq_num == 0) {
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count = 0;
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BPF_SEQ_PRINTF(seq, " tgid gid fd file\n");
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}
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if (tgid == task->tgid && task->tgid != task->pid)
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count++;
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if (last_tgid != task->tgid) {
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last_tgid = task->tgid;
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unique_tgid_count++;
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}
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BPF_SEQ_PRINTF(seq, "%8d %8d %8d %lx\n", task->tgid, task->pid, fd,
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(long)file->f_op);
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return 0;
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}
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