27  * intel_vgpu_find_page_track - find page track rcord of guest page
44  * @handler: page track handler
53 	struct intel_vgpu_page_track *track;  in intel_vgpu_register_page_track()  local
56 	track = intel_vgpu_find_page_track(vgpu, gfn);  in intel_vgpu_register_page_track()
57 	if (track)  in intel_vgpu_register_page_track()
60 	track = kzalloc(sizeof(*track), GFP_KERNEL);  in intel_vgpu_register_page_track()
61 	if (!track)  in intel_vgpu_register_page_track()
64 	track->handler = handler;  in intel_vgpu_register_page_track()
65 	track->priv_data = priv;  in intel_vgpu_register_page_track()
67 	ret = radix_tree_insert(&vgpu->page_track_tree, gfn, track);  in intel_vgpu_register_page_track()
69 		kfree(track);  in intel_vgpu_register_page_track()
85 	struct intel_vgpu_page_track *track;  in intel_vgpu_unregister_page_track()  local
87 	track = radix_tree_delete(&vgpu->page_track_tree, gfn);  in intel_vgpu_unregister_page_track()
88 	if (track) {  in intel_vgpu_unregister_page_track()
89 		if (track->tracked)  in intel_vgpu_unregister_page_track()
91 		kfree(track);  in intel_vgpu_unregister_page_track()
105 	struct intel_vgpu_page_track *track;  in intel_vgpu_enable_page_track()  local
108 	track = intel_vgpu_find_page_track(vgpu, gfn);  in intel_vgpu_enable_page_track()
109 	if (!track)  in intel_vgpu_enable_page_track()
112 	if (track->tracked)  in intel_vgpu_enable_page_track()
118 	track->tracked = true;  in intel_vgpu_enable_page_track()
132 	struct intel_vgpu_page_track *track;  in intel_vgpu_disable_page_track()  local
135 	track = intel_vgpu_find_page_track(vgpu, gfn);  in intel_vgpu_disable_page_track()
136 	if (!track)  in intel_vgpu_disable_page_track()
139 	if (!track->tracked)  in intel_vgpu_disable_page_track()
145 	track->tracked = false;  in intel_vgpu_disable_page_track()