308 static int insert_memory_segment(struct memory_segment *seg)  in insert_memory_segment()  argument
312 	if (seg->start + seg->size > VMEM_MAX_PHYS ||  in insert_memory_segment()
313 	    seg->start + seg->size < seg->start)  in insert_memory_segment()
317 		if (seg->start >= tmp->start + tmp->size)  in insert_memory_segment()
319 		if (seg->start + seg->size <= tmp->start)  in insert_memory_segment()
323 	list_add(&seg->list, &mem_segs);  in insert_memory_segment()
330 static void remove_memory_segment(struct memory_segment *seg)  in remove_memory_segment()  argument
332 	list_del(&seg->list);  in remove_memory_segment()
335 static void __remove_shared_memory(struct memory_segment *seg)  in __remove_shared_memory()  argument
337 	remove_memory_segment(seg);  in __remove_shared_memory()
338 	vmem_remove_range(seg->start, seg->size);  in __remove_shared_memory()
343 	struct memory_segment *seg;  in vmem_remove_mapping()  local
349 	list_for_each_entry(seg, &mem_segs, list) {  in vmem_remove_mapping()
350 		if (seg->start == start && seg->size == size)  in vmem_remove_mapping()
354 	if (seg->start != start || seg->size != size)  in vmem_remove_mapping()
358 	__remove_shared_memory(seg);  in vmem_remove_mapping()
359 	kfree(seg);  in vmem_remove_mapping()
367 	struct memory_segment *seg;  in vmem_add_mapping()  local
372 	seg = kzalloc(sizeof(*seg), GFP_KERNEL);  in vmem_add_mapping()
373 	if (!seg)  in vmem_add_mapping()
375 	seg->start = start;  in vmem_add_mapping()
376 	seg->size = size;  in vmem_add_mapping()
378 	ret = insert_memory_segment(seg);  in vmem_add_mapping()
388 	__remove_shared_memory(seg);  in vmem_add_mapping()
390 	kfree(seg);  in vmem_add_mapping()
433 	struct memory_segment *seg;  in vmem_convert_memory_chunk()  local
437 		seg = kzalloc(sizeof(*seg), GFP_KERNEL);  in vmem_convert_memory_chunk()
438 		if (!seg)  in vmem_convert_memory_chunk()
440 		seg->start = reg->base;  in vmem_convert_memory_chunk()
441 		seg->size = reg->size;  in vmem_convert_memory_chunk()
442 		insert_memory_segment(seg);  in vmem_convert_memory_chunk()