diff options
Diffstat (limited to 'drivers/s390/char/vmur.h')
| -rw-r--r-- | drivers/s390/char/vmur.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/s390/char/vmur.h b/drivers/s390/char/vmur.h index fa959644735a..fa320ad4593d 100644 --- a/drivers/s390/char/vmur.h +++ b/drivers/s390/char/vmur.h @@ -62,7 +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; @@ -71,6 +70,9 @@ struct urdev { 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 */ }; /* |