59 lines
1.1 KiB
C
59 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Create and destroy DSQs in a loop.
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*
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* Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
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* Copyright (c) 2024 David Vernet <dvernet@meta.com>
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*/
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#include <scx/common.bpf.h>
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char _license[] SEC("license") = "GPL";
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void BPF_STRUCT_OPS(create_dsq_exit_task, struct task_struct *p,
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struct scx_exit_task_args *args)
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{
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scx_bpf_destroy_dsq(p->pid);
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}
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s32 BPF_STRUCT_OPS_SLEEPABLE(create_dsq_init_task, struct task_struct *p,
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struct scx_init_task_args *args)
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{
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s32 err;
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err = scx_bpf_create_dsq(p->pid, -1);
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if (err)
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scx_bpf_error("Failed to create DSQ for %s[%d]",
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p->comm, p->pid);
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return err;
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}
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s32 BPF_STRUCT_OPS_SLEEPABLE(create_dsq_init)
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{
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u32 i;
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s32 err;
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bpf_for(i, 0, 1024) {
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err = scx_bpf_create_dsq(i, -1);
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if (err) {
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scx_bpf_error("Failed to create DSQ %d", i);
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return 0;
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}
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}
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bpf_for(i, 0, 1024) {
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scx_bpf_destroy_dsq(i);
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}
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return 0;
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}
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SEC(".struct_ops.link")
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struct sched_ext_ops create_dsq_ops = {
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.init_task = (void *) create_dsq_init_task,
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.exit_task = (void *) create_dsq_exit_task,
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.init = (void *) create_dsq_init,
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.name = "create_dsq",
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};
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