1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
4 */
5
6 #include <scx/common.bpf.h>
7
8 char _license[] SEC("license") = "GPL";
9
10 u64 vtime_test;
11
12 void BPF_STRUCT_OPS(maybe_null_running, struct task_struct *p)
13 {}
14
15 bool BPF_STRUCT_OPS(maybe_null_fail_yield, struct task_struct *from,
16 struct task_struct *to)
17 {
18 bpf_printk("Yielding to %s[%d]", to->comm, to->pid);
19
20 return false;
21 }
22
23 SEC(".struct_ops.link")
24 struct sched_ext_ops maybe_null_fail = {
25 .yield = (void *) maybe_null_fail_yield,
26 .enable = (void *) maybe_null_running,
27 .name = "maybe_null_fail_yield",
28 };
29
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