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authorDavid Vernet <void@manifault.com>2024-12-09 09:29:24 -0600
committerTejun Heo <tj@kernel.org>2024-12-10 20:30:50 -1000
commitb8f614207b0d5e4abd6df8d5cb3cc11f009d1d93 (patch)
tree3f8c032b9db73b7983579f66104e289d6d68ef53 /tools/testing/selftests/sched_ext/maximal.bpf.c
parentf24d192985cbd6782850fdbb3839039da2f0ee76 (diff)
scx: Fix maximal BPF selftest prog
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>
Diffstat (limited to 'tools/testing/selftests/sched_ext/maximal.bpf.c')
-rw-r--r--tools/testing/selftests/sched_ext/maximal.bpf.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/tools/testing/selftests/sched_ext/maximal.bpf.c b/tools/testing/selftests/sched_ext/maximal.bpf.c
index 4c005fa71810..430f5e13bf55 100644
--- a/tools/testing/selftests/sched_ext/maximal.bpf.c
+++ b/tools/testing/selftests/sched_ext/maximal.bpf.c
@@ -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)