diff options
Diffstat (limited to 'drivers/scsi/st.c')
| -rw-r--r-- | drivers/scsi/st.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 6ec1cfeb92ff..85867120c8a9 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -4703,6 +4703,24 @@ options_show(struct device *dev, struct device_attribute *attr, char *buf) } static DEVICE_ATTR_RO(options); +/** + * position_lost_in_reset_show - Value 1 indicates that reads, writes, etc. + * are blocked because a device reset has occurred and no operation positioning + * the tape has been issued. + * @dev: struct device + * @attr: attribute structure + * @buf: buffer to return formatted data in + */ +static ssize_t position_lost_in_reset_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct st_modedef *STm = dev_get_drvdata(dev); + struct scsi_tape *STp = STm->tape; + + return sprintf(buf, "%d", STp->pos_unknown); +} +static DEVICE_ATTR_RO(position_lost_in_reset); + /* Support for tape stats */ /** @@ -4887,6 +4905,7 @@ static struct attribute *st_dev_attrs[] = { &dev_attr_default_density.attr, &dev_attr_default_compression.attr, &dev_attr_options.attr, + &dev_attr_position_lost_in_reset.attr, NULL, }; |