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authorChristian König <christian.koenig@amd.com>2018-10-18 15:29:28 +0300
committerAlex Deucher <alexander.deucher@amd.com>2018-10-25 22:04:40 +0300
commit0af5c656fdb797f74ee57414e0c07cd57406d0c3 (patch)
tree0ffabe681c3f80a1909954df74a41ede03fccfab /drivers/gpu/drm
parent3732eb0683c17113201cd29fdefd7a58b1acfa7f (diff)
downloadlinux-0af5c656fdb797f74ee57414e0c07cd57406d0c3.tar.xz
drm/amdgpu: fix amdgpu_vm_fini
We should not remove mappings in rbtree_postorder_for_each_entry_safe because that rebalances the tree. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Chunming Zhou <david1.zhou@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 6904d794d60a..db0cbf8d219d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -3234,8 +3234,10 @@ void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm)
}
rbtree_postorder_for_each_entry_safe(mapping, tmp,
&vm->va.rb_root, rb) {
+ /* Don't remove the mapping here, we don't want to trigger a
+ * rebalance and the tree is about to be destroyed anyway.
+ */
list_del(&mapping->list);
- amdgpu_vm_it_remove(mapping, &vm->va);
kfree(mapping);
}
list_for_each_entry_safe(mapping, tmp, &vm->freed, list) {