summaryrefslogtreecommitdiff
path: root/drivers/s390/char/vmur.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/s390/char/vmur.h')
-rw-r--r--drivers/s390/char/vmur.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/s390/char/vmur.h b/drivers/s390/char/vmur.h
index fa320ad4593d..608b0719ce17 100644
--- a/drivers/s390/char/vmur.h
+++ b/drivers/s390/char/vmur.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Linux driver for System z and s390 unit record devices
* (z/VM virtual punch, reader, printer)
@@ -11,6 +12,8 @@
#ifndef _VMUR_H_
#define _VMUR_H_
+#include <linux/refcount.h>
+
#define DEV_CLASS_UR_I 0x20 /* diag210 unit record input device class */
#define DEV_CLASS_UR_O 0x10 /* diag210 unit record output device class */
/*
@@ -69,7 +72,7 @@ struct urdev {
size_t reclen; /* Record length for *write* CCWs */
int class; /* VM device class */
int io_request_rc; /* return code from I/O request */
- atomic_t ref_count; /* reference counter */
+ refcount_t ref_count; /* reference counter */
wait_queue_head_t wait; /* wait queue to serialize open */
int open_flag; /* "urdev is open" flag */
spinlock_t open_lock; /* serialize critical sections */