Am 2022-10-06 um 22:26 schrieb Deming Wang:
Using vma_lookup() verifies the start address is contained in the found
vma. This results in easier to read the code.
Signed-off-by: Deming Wang <wangdeming@xxxxxxxxxx>
---
drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
index 2797029bd500..3599cc931b0a 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
@@ -529,8 +529,8 @@ svm_migrate_ram_to_vram(struct svm_range *prange, uint32_t best_loc,
for (addr = start; addr < end;) {
unsigned long next;
- vma = find_vma(mm, addr);
- if (!vma || addr < vma->vm_start)
+ vma = vma_lookup(mm, addr);
+ if (!vma)
break;
next = min(vma->vm_end, end);
@@ -798,8 +798,8 @@ int svm_migrate_vram_to_ram(struct svm_range *prange, struct mm_struct *mm,
for (addr = start; addr < end;) {
unsigned long next;
- vma = find_vma(mm, addr);
- if (!vma || addr < vma->vm_start) {
+ vma = vma_lookup(mm, addr)
There is a semicolon missing here. I will fix this before I submit the
patch.
Please do at least a minimum amount of due diligence before posting
patches. That would include a test to make sure your code compiles.
Regards,
Felix
+ if (!vma) {
pr_debug("failed to find vma for prange %p\n", prange);
r = -EFAULT;
break;
