497 	struct dmirror_chunk *devmem;  in dmirror_allocate_chunk()  local
505 	devmem = kzalloc(sizeof(*devmem), GFP_KERNEL);  in dmirror_allocate_chunk()
506 	if (!devmem)  in dmirror_allocate_chunk()
515 		devmem->pagemap.range.start = res->start;  in dmirror_allocate_chunk()
516 		devmem->pagemap.range.end = res->end;  in dmirror_allocate_chunk()
517 		devmem->pagemap.type = MEMORY_DEVICE_PRIVATE;  in dmirror_allocate_chunk()
520 		devmem->pagemap.range.start = (MINOR(mdevice->cdevice.dev) - 2) ?  in dmirror_allocate_chunk()
523 		devmem->pagemap.range.end = devmem->pagemap.range.start +  in dmirror_allocate_chunk()
525 		devmem->pagemap.type = MEMORY_DEVICE_COHERENT;  in dmirror_allocate_chunk()
532 	devmem->pagemap.nr_range = 1;  in dmirror_allocate_chunk()
533 	devmem->pagemap.ops = &dmirror_devmem_ops;  in dmirror_allocate_chunk()
534 	devmem->pagemap.owner = mdevice;  in dmirror_allocate_chunk()
552 	ptr = memremap_pages(&devmem->pagemap, numa_node_id());  in dmirror_allocate_chunk()
561 	devmem->mdevice = mdevice;  in dmirror_allocate_chunk()
562 	pfn_first = devmem->pagemap.range.start >> PAGE_SHIFT;  in dmirror_allocate_chunk()
563 	pfn_last = pfn_first + (range_len(&devmem->pagemap.range) >> PAGE_SHIFT);  in dmirror_allocate_chunk()
564 	mdevice->devmem_chunks[mdevice->devmem_count++] = devmem;  in dmirror_allocate_chunk()
592 	if (res && devmem->pagemap.type == MEMORY_DEVICE_PRIVATE)  in dmirror_allocate_chunk()
593 		release_mem_region(devmem->pagemap.range.start,  in dmirror_allocate_chunk()
594 				   range_len(&devmem->pagemap.range));  in dmirror_allocate_chunk()
596 	kfree(devmem);  in dmirror_allocate_chunk()
1233 static void dmirror_remove_free_pages(struct dmirror_chunk *devmem)  in dmirror_remove_free_pages()  argument
1235 	struct dmirror_device *mdevice = devmem->mdevice;  in dmirror_remove_free_pages()
1239 		if (dmirror_page_to_chunk(page) == devmem)  in dmirror_remove_free_pages()
1250 			struct dmirror_chunk *devmem =  in dmirror_device_remove_chunks()  local
1254 			devmem->remove = true;  in dmirror_device_remove_chunks()
1255 			dmirror_remove_free_pages(devmem);  in dmirror_device_remove_chunks()
1258 			dmirror_device_evict_chunk(devmem);  in dmirror_device_remove_chunks()
1259 			memunmap_pages(&devmem->pagemap);  in dmirror_device_remove_chunks()
1260 			if (devmem->pagemap.type == MEMORY_DEVICE_PRIVATE)  in dmirror_device_remove_chunks()
1261 				release_mem_region(devmem->pagemap.range.start,  in dmirror_device_remove_chunks()
1262 						   range_len(&devmem->pagemap.range));  in dmirror_device_remove_chunks()
1263 			kfree(devmem);  in dmirror_device_remove_chunks()