[PATCH] s390: dasd readonly attribute

The independent read-only flags in devmap, dasd_device and gendisk are not
kept in sync.  Use one bit per feature in the dasd driver and keep that bit in
sync with the gendisk bit.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index 4586e0ecc526..a9f38b235981 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -6,7 +6,7 @@
  * Bugreports.to..: <Linux390@de.ibm.com>
  * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
  *
- * $Revision: 1.63 $
+ * $Revision: 1.64 $
  */
 
 #ifndef DASD_INT_H
@@ -329,8 +329,6 @@ struct dasd_device {
 #define DASD_STOPPED_DC_EIO  16        /* disconnected, return -EIO */
 
 /* per device flags */
-#define DASD_FLAG_RO            0       /* device is read-only */
-#define DASD_FLAG_USE_DIAG      1       /* use diag disciplnie */
 #define DASD_FLAG_DSC_ERROR     2       /* return -EIO when disconnected */
 #define DASD_FLAG_OFFLINE       3       /* device is in offline processing */
 
@@ -501,6 +499,9 @@ void dasd_devmap_exit(void);
 struct dasd_device *dasd_create_device(struct ccw_device *);
 void dasd_delete_device(struct dasd_device *);
 
+int dasd_get_feature(struct ccw_device *, int);
+int dasd_set_feature(struct ccw_device *, int, int);
+
 int dasd_add_sysfs_files(struct ccw_device *);
 void dasd_remove_sysfs_files(struct ccw_device *);