Re: [PATCH] selftests/sched_ext: fix build after renames in sched_ext API

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On Thu, Nov 21, 2024 at 09:40:17PM +0000, Ihor Solodrai wrote:
> The selftests are falining to build on current tip of bpf-next and
> sched_ext [1]. This has broken BPF CI [2] after merge from upstream.
> 
> Use appropriate function names in the selftests according to the
> recent changes in the sched_ext API [3].
> 
> [1]
> https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=fc39fb56917bb3cb53e99560ca3612a84456ada2
> [2] https://github.com/kernel-patches/bpf/actions/runs/11959327258/job/33340923745
> [3] https://lore.kernel.org/all/20241109194853.580310-1-tj@xxxxxxxxxx/
> 
> Signed-off-by: Ihor Solodrai <ihor.solodrai@xxxxx>

Looks good to me, thanks!

Acked-by: Andrea Righi <arighi@xxxxxxxxxx>

> ---
>  .../testing/selftests/sched_ext/ddsp_bogus_dsq_fail.bpf.c | 2 +-
>  .../selftests/sched_ext/ddsp_vtimelocal_fail.bpf.c        | 4 ++--
>  tools/testing/selftests/sched_ext/dsp_local_on.bpf.c      | 2 +-
>  .../selftests/sched_ext/enq_select_cpu_fails.bpf.c        | 2 +-
>  tools/testing/selftests/sched_ext/exit.bpf.c              | 4 ++--
>  tools/testing/selftests/sched_ext/maximal.bpf.c           | 4 ++--
>  tools/testing/selftests/sched_ext/select_cpu_dfl.bpf.c    | 2 +-
>  .../selftests/sched_ext/select_cpu_dfl_nodispatch.bpf.c   | 2 +-
>  .../testing/selftests/sched_ext/select_cpu_dispatch.bpf.c | 2 +-
>  .../selftests/sched_ext/select_cpu_dispatch_bad_dsq.bpf.c | 2 +-
>  .../selftests/sched_ext/select_cpu_dispatch_dbl_dsp.bpf.c | 4 ++--
>  tools/testing/selftests/sched_ext/select_cpu_vtime.bpf.c  | 8 ++++----
>  12 files changed, 19 insertions(+), 19 deletions(-)
> 
> diff --git a/tools/testing/selftests/sched_ext/ddsp_bogus_dsq_fail.bpf.c b/tools/testing/selftests/sched_ext/ddsp_bogus_dsq_fail.bpf.c
> index 37d9bf6fb745..6f4c3f5a1c5d 100644
> --- a/tools/testing/selftests/sched_ext/ddsp_bogus_dsq_fail.bpf.c
> +++ b/tools/testing/selftests/sched_ext/ddsp_bogus_dsq_fail.bpf.c
> @@ -20,7 +20,7 @@ s32 BPF_STRUCT_OPS(ddsp_bogus_dsq_fail_select_cpu, struct task_struct *p,
>  		 * If we dispatch to a bogus DSQ that will fall back to the
>  		 * builtin global DSQ, we fail gracefully.
>  		 */
> -		scx_bpf_dispatch_vtime(p, 0xcafef00d, SCX_SLICE_DFL,
> +		scx_bpf_dsq_insert_vtime(p, 0xcafef00d, SCX_SLICE_DFL,
>  				       p->scx.dsq_vtime, 0);
>  		return cpu;
>  	}
> diff --git a/tools/testing/selftests/sched_ext/ddsp_vtimelocal_fail.bpf.c b/tools/testing/selftests/sched_ext/ddsp_vtimelocal_fail.bpf.c
> index dffc97d9cdf1..e4a55027778f 100644
> --- a/tools/testing/selftests/sched_ext/ddsp_vtimelocal_fail.bpf.c
> +++ b/tools/testing/selftests/sched_ext/ddsp_vtimelocal_fail.bpf.c
> @@ -17,8 +17,8 @@ s32 BPF_STRUCT_OPS(ddsp_vtimelocal_fail_select_cpu, struct task_struct *p,
>  
>  	if (cpu >= 0) {
>  		/* Shouldn't be allowed to vtime dispatch to a builtin DSQ. */
> -		scx_bpf_dispatch_vtime(p, SCX_DSQ_LOCAL, SCX_SLICE_DFL,
> -				       p->scx.dsq_vtime, 0);
> +		scx_bpf_dsq_insert_vtime(p, SCX_DSQ_LOCAL, SCX_SLICE_DFL,
> +					 p->scx.dsq_vtime, 0);
>  		return cpu;
>  	}
>  
> diff --git a/tools/testing/selftests/sched_ext/dsp_local_on.bpf.c b/tools/testing/selftests/sched_ext/dsp_local_on.bpf.c
> index 6a7db1502c29..6325bf76f47e 100644
> --- a/tools/testing/selftests/sched_ext/dsp_local_on.bpf.c
> +++ b/tools/testing/selftests/sched_ext/dsp_local_on.bpf.c
> @@ -45,7 +45,7 @@ void BPF_STRUCT_OPS(dsp_local_on_dispatch, s32 cpu, struct task_struct *prev)
>  
>  	target = bpf_get_prandom_u32() % nr_cpus;
>  
> -	scx_bpf_dispatch(p, SCX_DSQ_LOCAL_ON | target, SCX_SLICE_DFL, 0);
> +	scx_bpf_dsq_insert(p, SCX_DSQ_LOCAL_ON | target, SCX_SLICE_DFL, 0);
>  	bpf_task_release(p);
>  }
>  
> diff --git a/tools/testing/selftests/sched_ext/enq_select_cpu_fails.bpf.c b/tools/testing/selftests/sched_ext/enq_select_cpu_fails.bpf.c
> index 1efb50d61040..a7cf868d5e31 100644
> --- a/tools/testing/selftests/sched_ext/enq_select_cpu_fails.bpf.c
> +++ b/tools/testing/selftests/sched_ext/enq_select_cpu_fails.bpf.c
> @@ -31,7 +31,7 @@ void BPF_STRUCT_OPS(enq_select_cpu_fails_enqueue, struct task_struct *p,
>  	/* Can only call from ops.select_cpu() */
>  	scx_bpf_select_cpu_dfl(p, 0, 0, &found);
>  
> -	scx_bpf_dispatch(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, enq_flags);
> +	scx_bpf_dsq_insert(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, enq_flags);
>  }
>  
>  SEC(".struct_ops.link")
> diff --git a/tools/testing/selftests/sched_ext/exit.bpf.c b/tools/testing/selftests/sched_ext/exit.bpf.c
> index d75d4faf07f6..4bc36182d3ff 100644
> --- a/tools/testing/selftests/sched_ext/exit.bpf.c
> +++ b/tools/testing/selftests/sched_ext/exit.bpf.c
> @@ -33,7 +33,7 @@ void BPF_STRUCT_OPS(exit_enqueue, struct task_struct *p, u64 enq_flags)
>  	if (exit_point == EXIT_ENQUEUE)
>  		EXIT_CLEANLY();
>  
> -	scx_bpf_dispatch(p, DSQ_ID, SCX_SLICE_DFL, enq_flags);
> +	scx_bpf_dsq_insert(p, DSQ_ID, SCX_SLICE_DFL, enq_flags);
>  }
>  
>  void BPF_STRUCT_OPS(exit_dispatch, s32 cpu, struct task_struct *p)
> @@ -41,7 +41,7 @@ void BPF_STRUCT_OPS(exit_dispatch, s32 cpu, struct task_struct *p)
>  	if (exit_point == EXIT_DISPATCH)
>  		EXIT_CLEANLY();
>  
> -	scx_bpf_consume(DSQ_ID);
> +	scx_bpf_dsq_move_to_local(DSQ_ID);
>  }
>  
>  void BPF_STRUCT_OPS(exit_enable, struct task_struct *p)
> diff --git a/tools/testing/selftests/sched_ext/maximal.bpf.c b/tools/testing/selftests/sched_ext/maximal.bpf.c
> index 4d4cd8d966db..4c005fa71810 100644
> --- a/tools/testing/selftests/sched_ext/maximal.bpf.c
> +++ b/tools/testing/selftests/sched_ext/maximal.bpf.c
> @@ -20,7 +20,7 @@ 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_dispatch(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, enq_flags);
> +	scx_bpf_dsq_insert(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, enq_flags);
>  }
>  
>  void BPF_STRUCT_OPS(maximal_dequeue, struct task_struct *p, u64 deq_flags)
> @@ -28,7 +28,7 @@ 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_consume(SCX_DSQ_GLOBAL);
> +	scx_bpf_dsq_move_to_local(SCX_DSQ_GLOBAL);
>  }
>  
>  void BPF_STRUCT_OPS(maximal_runnable, struct task_struct *p, u64 enq_flags)
> diff --git a/tools/testing/selftests/sched_ext/select_cpu_dfl.bpf.c b/tools/testing/selftests/sched_ext/select_cpu_dfl.bpf.c
> index f171ac470970..13d0f5be788d 100644
> --- a/tools/testing/selftests/sched_ext/select_cpu_dfl.bpf.c
> +++ b/tools/testing/selftests/sched_ext/select_cpu_dfl.bpf.c
> @@ -30,7 +30,7 @@ void BPF_STRUCT_OPS(select_cpu_dfl_enqueue, struct task_struct *p,
>  	}
>  	scx_bpf_put_idle_cpumask(idle_mask);
>  
> -	scx_bpf_dispatch(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, enq_flags);
> +	scx_bpf_dsq_insert(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, enq_flags);
>  }
>  
>  SEC(".struct_ops.link")
> diff --git a/tools/testing/selftests/sched_ext/select_cpu_dfl_nodispatch.bpf.c b/tools/testing/selftests/sched_ext/select_cpu_dfl_nodispatch.bpf.c
> index 9efdbb7da928..815f1d5d61ac 100644
> --- a/tools/testing/selftests/sched_ext/select_cpu_dfl_nodispatch.bpf.c
> +++ b/tools/testing/selftests/sched_ext/select_cpu_dfl_nodispatch.bpf.c
> @@ -67,7 +67,7 @@ void BPF_STRUCT_OPS(select_cpu_dfl_nodispatch_enqueue, struct task_struct *p,
>  		saw_local = true;
>  	}
>  
> -	scx_bpf_dispatch(p, dsq_id, SCX_SLICE_DFL, enq_flags);
> +	scx_bpf_dsq_insert(p, dsq_id, SCX_SLICE_DFL, enq_flags);
>  }
>  
>  s32 BPF_STRUCT_OPS(select_cpu_dfl_nodispatch_init_task,
> diff --git a/tools/testing/selftests/sched_ext/select_cpu_dispatch.bpf.c b/tools/testing/selftests/sched_ext/select_cpu_dispatch.bpf.c
> index 59bfc4f36167..4bb99699e920 100644
> --- a/tools/testing/selftests/sched_ext/select_cpu_dispatch.bpf.c
> +++ b/tools/testing/selftests/sched_ext/select_cpu_dispatch.bpf.c
> @@ -29,7 +29,7 @@ s32 BPF_STRUCT_OPS(select_cpu_dispatch_select_cpu, struct task_struct *p,
>  	cpu = prev_cpu;
>  
>  dispatch:
> -	scx_bpf_dispatch(p, dsq_id, SCX_SLICE_DFL, 0);
> +	scx_bpf_dsq_insert(p, dsq_id, SCX_SLICE_DFL, 0);
>  	return cpu;
>  }
>  
> diff --git a/tools/testing/selftests/sched_ext/select_cpu_dispatch_bad_dsq.bpf.c b/tools/testing/selftests/sched_ext/select_cpu_dispatch_bad_dsq.bpf.c
> index 3bbd5fcdfb18..2a75de11b2cf 100644
> --- a/tools/testing/selftests/sched_ext/select_cpu_dispatch_bad_dsq.bpf.c
> +++ b/tools/testing/selftests/sched_ext/select_cpu_dispatch_bad_dsq.bpf.c
> @@ -18,7 +18,7 @@ s32 BPF_STRUCT_OPS(select_cpu_dispatch_bad_dsq_select_cpu, struct task_struct *p
>  		   s32 prev_cpu, u64 wake_flags)
>  {
>  	/* Dispatching to a random DSQ should fail. */
> -	scx_bpf_dispatch(p, 0xcafef00d, SCX_SLICE_DFL, 0);
> +	scx_bpf_dsq_insert(p, 0xcafef00d, SCX_SLICE_DFL, 0);
>  
>  	return prev_cpu;
>  }
> diff --git a/tools/testing/selftests/sched_ext/select_cpu_dispatch_dbl_dsp.bpf.c b/tools/testing/selftests/sched_ext/select_cpu_dispatch_dbl_dsp.bpf.c
> index 0fda57fe0ecf..99d075695c97 100644
> --- a/tools/testing/selftests/sched_ext/select_cpu_dispatch_dbl_dsp.bpf.c
> +++ b/tools/testing/selftests/sched_ext/select_cpu_dispatch_dbl_dsp.bpf.c
> @@ -18,8 +18,8 @@ s32 BPF_STRUCT_OPS(select_cpu_dispatch_dbl_dsp_select_cpu, struct task_struct *p
>  		   s32 prev_cpu, u64 wake_flags)
>  {
>  	/* Dispatching twice in a row is disallowed. */
> -	scx_bpf_dispatch(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, 0);
> -	scx_bpf_dispatch(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, 0);
> +	scx_bpf_dsq_insert(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, 0);
> +	scx_bpf_dsq_insert(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, 0);
>  
>  	return prev_cpu;
>  }
> diff --git a/tools/testing/selftests/sched_ext/select_cpu_vtime.bpf.c b/tools/testing/selftests/sched_ext/select_cpu_vtime.bpf.c
> index e6c67bcf5e6e..bfcb96cd4954 100644
> --- a/tools/testing/selftests/sched_ext/select_cpu_vtime.bpf.c
> +++ b/tools/testing/selftests/sched_ext/select_cpu_vtime.bpf.c
> @@ -2,8 +2,8 @@
>  /*
>   * A scheduler that validates that enqueue flags are properly stored and
>   * applied at dispatch time when a task is directly dispatched from
> - * ops.select_cpu(). We validate this by using scx_bpf_dispatch_vtime(), and
> - * making the test a very basic vtime scheduler.
> + * ops.select_cpu(). We validate this by using scx_bpf_dsq_insert_vtime(),
> + * and making the test a very basic vtime scheduler.
>   *
>   * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
>   * Copyright (c) 2024 David Vernet <dvernet@xxxxxxxx>
> @@ -47,13 +47,13 @@ s32 BPF_STRUCT_OPS(select_cpu_vtime_select_cpu, struct task_struct *p,
>  	cpu = prev_cpu;
>  	scx_bpf_test_and_clear_cpu_idle(cpu);
>  ddsp:
> -	scx_bpf_dispatch_vtime(p, VTIME_DSQ, SCX_SLICE_DFL, task_vtime(p), 0);
> +	scx_bpf_dsq_insert_vtime(p, VTIME_DSQ, SCX_SLICE_DFL, task_vtime(p), 0);
>  	return cpu;
>  }
>  
>  void BPF_STRUCT_OPS(select_cpu_vtime_dispatch, s32 cpu, struct task_struct *p)
>  {
> -	if (scx_bpf_consume(VTIME_DSQ))
> +	if (scx_bpf_dsq_move_to_local(VTIME_DSQ))
>  		consumed = true;
>  }
>  
> -- 
> 2.47.0
> 
> 




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