diff options
Diffstat (limited to 'drivers/s390/cio/vfio_ccw_private.h')
| -rw-r--r-- | drivers/s390/cio/vfio_ccw_private.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/s390/cio/vfio_ccw_private.h b/drivers/s390/cio/vfio_ccw_private.h index 50c52efb4fcb..32173cbd838d 100644 --- a/drivers/s390/cio/vfio_ccw_private.h +++ b/drivers/s390/cio/vfio_ccw_private.h @@ -28,6 +28,7 @@ * @mdev: pointer to the mediated device * @nb: notifier for vfio events * @io_region: MMIO region to input/output I/O arguments/results + * @io_mutex: protect against concurrent update of I/O regions * @cp: channel program for the current I/O operation * @irb: irb info received from interrupt * @scsw: scsw info @@ -42,6 +43,7 @@ struct vfio_ccw_private { struct mdev_device *mdev; struct notifier_block nb; struct ccw_io_region *io_region; + struct mutex io_mutex; struct channel_program cp; struct irb irb; |