X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fs390%2Fchar%2Fvmur.h;h=fa320ad4593d790fb34af20f27afb9c3825e8af4;hb=74c76c84576eb2d806f40f6cb2fc8302c01869d8;hp=16d0a4e38e40a17ec4943c3fed13f0cba8245e04;hpb=e8b495fe09bc793ae26774e7b2667f7f658d56e2;p=linux-2.6

diff --git a/drivers/s390/char/vmur.h b/drivers/s390/char/vmur.h
index 16d0a4e38e..fa320ad459 100644
--- a/drivers/s390/char/vmur.h
+++ b/drivers/s390/char/vmur.h
@@ -50,7 +50,10 @@ struct file_control_block {
 	char  rest[200];
 } __attribute__ ((packed));
 
-#define FLG_CP_DUMP 0x10
+#define FLG_SYSTEM_HOLD	0x04
+#define FLG_CP_DUMP	0x10
+#define FLG_USER_HOLD	0x20
+#define FLG_IN_USE	0x80
 
 /*
  * A struct urdev is created for each ur device that is made available
@@ -59,7 +62,6 @@ struct file_control_block {
 struct urdev {
 	struct ccw_device *cdev;	/* Backpointer to ccw device */
 	struct mutex io_mutex;		/* Serialises device IO */
-	struct mutex open_mutex;	/* Serialises access to device */
 	struct completion *io_done;	/* do_ur_io waits; irq completes */
 	struct device *device;
 	struct cdev *char_device;
@@ -67,6 +69,10 @@ 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 */
+	wait_queue_head_t wait;		/* wait queue to serialize open */
+	int open_flag;			/* "urdev is open" flag */
+	spinlock_t open_lock;		/* serialize critical sections */
 };
 
 /*