384 	char *kbuf; /* k-addr because vread() takes vmlist_lock rwlock */  in read_kmem()  local
414 			kbuf = xlate_dev_kmem_ptr((void *)p);  in read_kmem()
416 			if (copy_to_user(buf, kbuf, sz))  in read_kmem()
427 		kbuf = (char *)__get_free_page(GFP_KERNEL);  in read_kmem()
428 		if (!kbuf)  in read_kmem()
436 			sz = vread(kbuf, (char *)p, sz);  in read_kmem()
439 			if (copy_to_user(buf, kbuf, sz)) {  in read_kmem()
448 		free_page((unsigned long)kbuf);  in read_kmem()
512 	char *kbuf; /* k-addr because vwrite() takes vmlist_lock rwlock */  in write_kmem()  local
527 		kbuf = (char *)__get_free_page(GFP_KERNEL);  in write_kmem()
528 		if (!kbuf)  in write_kmem()
538 			n = copy_from_user(kbuf, buf, sz);  in write_kmem()
543 			vwrite(kbuf, (char *)p, sz);  in write_kmem()
549 		free_page((unsigned long)kbuf);  in write_kmem()