Re: [PATCH v2 2/4] drm/amdkfd: use vma_is_initial_stack() and vma_is_initial_heap()

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On 19.07.23 09:51, Kefeng Wang wrote:
Use the helpers to simplify code.

Cc: Felix Kuehling <Felix.Kuehling@xxxxxxx>
Cc: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: "Christian König" <christian.koenig@xxxxxxx>
Cc: "Pan, Xinhui" <Xinhui.Pan@xxxxxxx>
Cc: David Airlie <airlied@xxxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
---
  drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 5 +----
  1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
index 5ff1a5a89d96..0b7bfbd0cb66 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
@@ -2621,10 +2621,7 @@ svm_range_get_range_boundaries(struct kfd_process *p, int64_t addr,
  		return -EFAULT;
  	}
- *is_heap_stack = (vma->vm_start <= vma->vm_mm->brk &&
-			  vma->vm_end >= vma->vm_mm->start_brk) ||
-			 (vma->vm_start <= vma->vm_mm->start_stack &&
-			  vma->vm_end >= vma->vm_mm->start_stack);
+	*is_heap_stack = vma_is_initial_heap(vma) || vma_is_initial_stack(vma);
start_limit = max(vma->vm_start >> PAGE_SHIFT,
  		      (unsigned long)ALIGN_DOWN(addr, 2UL << 8));

Certainly a valid refactoring, although questionable if such code should care about that.

Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>

--
Cheers,

David / dhildenb





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