tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
fork
Configure Feed
Select the types of activity you want to include in your feed.
1// SPDX-License-Identifier: GPL-2.0
2// Copyright (c) 2019 Facebook
3#include <linux/sched.h>
4#include <linux/ptrace.h>
5#include <stdint.h>
6#include <stddef.h>
7#include <stdbool.h>
8#include <linux/bpf.h>
9#include "bpf_helpers.h"
10
11char _license[] SEC("license") = "GPL";
12
13SEC("raw_tracepoint/kfree_skb")
14int nested_loops(volatile struct pt_regs* ctx)
15{
16 int i, j, sum = 0, m;
17
18 for (j = 0; j < 300; j++)
19 for (i = 0; i < j; i++) {
20 if (j & 1)
21 m = PT_REGS_RC(ctx);
22 else
23 m = j;
24 sum += i * m;
25 }
26
27 return sum;
28}