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 = maybe_null_fail_yield, 26 .enable = maybe_null_running, 27 .name = "maybe_null_fail_yield", 28 }; 29