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scx: Fix maximal BPF selftest prog

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[ Upstream commit b8f614207b0d5e4abd6df8d5cb3cc11f009d1d93 ]

maximal.bpf.c is still dispatching to and consuming from SCX_DSQ_GLOBAL.
Let's have it use its own DSQ to avoid any runtime errors.

Signed-off-by: David Vernet <void@manifault.com>
Tested-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
David Vernet
2024-12-09 09:29:24 -06:00
committed by Greg Kroah-Hartman
parent fc20e87419
commit 21900bfd33
1 changed files with 5 additions and 3 deletions
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tools/testing/selftests/sched_ext/maximal.bpf.c
+5 -3
View File
@@ -12,6 +12,8 @@
char _license[] SEC("license") = "GPL";
#define DSQ_ID 0
s32 BPF_STRUCT_OPS(maximal_select_cpu, struct task_struct *p, s32 prev_cpu,
u64 wake_flags)
{
@@ -20,7 +22,7 @@ s32 BPF_STRUCT_OPS(maximal_select_cpu, struct task_struct *p, s32 prev_cpu,
void BPF_STRUCT_OPS(maximal_enqueue, struct task_struct *p, u64 enq_flags)
{
scx_bpf_dsq_insert(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, enq_flags);
scx_bpf_dsq_insert(p, DSQ_ID, SCX_SLICE_DFL, enq_flags);
}
void BPF_STRUCT_OPS(maximal_dequeue, struct task_struct *p, u64 deq_flags)
@@ -28,7 +30,7 @@ void BPF_STRUCT_OPS(maximal_dequeue, struct task_struct *p, u64 deq_flags)
void BPF_STRUCT_OPS(maximal_dispatch, s32 cpu, struct task_struct *prev)
{
scx_bpf_dsq_move_to_local(SCX_DSQ_GLOBAL);
scx_bpf_dsq_move_to_local(DSQ_ID);
}
void BPF_STRUCT_OPS(maximal_runnable, struct task_struct *p, u64 enq_flags)
@@ -123,7 +125,7 @@ void BPF_STRUCT_OPS(maximal_cgroup_set_weight, struct cgroup *cgrp, u32 weight)
s32 BPF_STRUCT_OPS_SLEEPABLE(maximal_init)
{
return 0;
return scx_bpf_create_dsq(DSQ_ID, -1);
}
void BPF_STRUCT_OPS(maximal_exit, struct scx_exit_info *info)