/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */ #include char _license[] SEC("license") = "GPL"; u64 vtime_test; void BPF_STRUCT_OPS(maybe_null_running, struct task_struct *p) {} void BPF_STRUCT_OPS(maybe_null_success_dispatch, s32 cpu, struct task_struct *p) { if (p != NULL) vtime_test = p->scx.dsq_vtime; } bool BPF_STRUCT_OPS(maybe_null_success_yield, struct task_struct *from, struct task_struct *to) { if (to) bpf_printk("Yielding to %s[%d]", to->comm, to->pid); return false; } SEC(".struct_ops.link") struct sched_ext_ops maybe_null_success = { .dispatch = (void *) maybe_null_success_dispatch, .yield = (void *) maybe_null_success_yield, .enable = (void *) maybe_null_running, .name = "minimal", };