502 	struct dmirror_chunk *devmem;  in dmirror_allocate_chunk()  local
510 	devmem = kzalloc(sizeof(*devmem), GFP_KERNEL);  in dmirror_allocate_chunk()
511 	if (!devmem)  in dmirror_allocate_chunk()
520 		devmem->pagemap.range.start = res->start;  in dmirror_allocate_chunk()
521 		devmem->pagemap.range.end = res->end;  in dmirror_allocate_chunk()
522 		devmem->pagemap.type = MEMORY_DEVICE_PRIVATE;  in dmirror_allocate_chunk()
525 		devmem->pagemap.range.start = (MINOR(mdevice->cdevice.dev) - 2) ?  in dmirror_allocate_chunk()
528 		devmem->pagemap.range.end = devmem->pagemap.range.start +  in dmirror_allocate_chunk()
530 		devmem->pagemap.type = MEMORY_DEVICE_COHERENT;  in dmirror_allocate_chunk()
537 	devmem->pagemap.nr_range = 1;  in dmirror_allocate_chunk()
538 	devmem->pagemap.ops = &dmirror_devmem_ops;  in dmirror_allocate_chunk()
539 	devmem->pagemap.owner = mdevice;  in dmirror_allocate_chunk()
557 	ptr = memremap_pages(&devmem->pagemap, numa_node_id());  in dmirror_allocate_chunk()
566 	devmem->mdevice = mdevice;  in dmirror_allocate_chunk()
567 	pfn_first = devmem->pagemap.range.start >> PAGE_SHIFT;  in dmirror_allocate_chunk()
568 	pfn_last = pfn_first + (range_len(&devmem->pagemap.range) >> PAGE_SHIFT);  in dmirror_allocate_chunk()
569 	mdevice->devmem_chunks[mdevice->devmem_count++] = devmem;  in dmirror_allocate_chunk()
597 	if (res && devmem->pagemap.type == MEMORY_DEVICE_PRIVATE)  in dmirror_allocate_chunk()
598 		release_mem_region(devmem->pagemap.range.start,  in dmirror_allocate_chunk()
599 				   range_len(&devmem->pagemap.range));  in dmirror_allocate_chunk()
601 	kfree(devmem);  in dmirror_allocate_chunk()
1264 static void dmirror_remove_free_pages(struct dmirror_chunk *devmem)  in dmirror_remove_free_pages()  argument
1266 	struct dmirror_device *mdevice = devmem->mdevice;  in dmirror_remove_free_pages()
1270 		if (dmirror_page_to_chunk(page) == devmem)  in dmirror_remove_free_pages()
1281 			struct dmirror_chunk *devmem =  in dmirror_device_remove_chunks()  local
1285 			devmem->remove = true;  in dmirror_device_remove_chunks()
1286 			dmirror_remove_free_pages(devmem);  in dmirror_device_remove_chunks()
1289 			dmirror_device_evict_chunk(devmem);  in dmirror_device_remove_chunks()
1290 			memunmap_pages(&devmem->pagemap);  in dmirror_device_remove_chunks()
1291 			if (devmem->pagemap.type == MEMORY_DEVICE_PRIVATE)  in dmirror_device_remove_chunks()
1292 				release_mem_region(devmem->pagemap.range.start,  in dmirror_device_remove_chunks()
1293 						   range_len(&devmem->pagemap.range));  in dmirror_device_remove_chunks()
1294 			kfree(devmem);  in dmirror_device_remove_chunks()