diff options
| -rw-r--r-- | drivers/s390/cio/cmf.c | 45 |
1 files changed, 14 insertions, 31 deletions
diff --git a/drivers/s390/cio/cmf.c b/drivers/s390/cio/cmf.c index 531861d005fd..78fb492d9881 100644 --- a/drivers/s390/cio/cmf.c +++ b/drivers/s390/cio/cmf.c @@ -589,22 +589,18 @@ static int set_cmb(struct ccw_device *cdev, u32 mme) static u64 read_cmb(struct ccw_device *cdev, int index) { + struct cmb_data *cmb_data; + unsigned long flags; struct cmb *cmb; + int ret = 0; u32 val; - int ret; - unsigned long flags; - - ret = cmf_cmb_copy_wait(cdev); - if (ret < 0) - return 0; spin_lock_irqsave(cdev->ccwlock, flags); - if (!cdev->private->cmb) { - ret = 0; + cmb_data = cdev->private->cmb; + if (!cmb_data) goto out; - } - cmb = ((struct cmb_data *)cdev->private->cmb)->last_block; + cmb = cmb_data->hw_block; switch (index) { case cmb_ssch_rsch_count: ret = cmb->ssch_rsch_count; @@ -628,7 +624,6 @@ static u64 read_cmb(struct ccw_device *cdev, int index) val = cmb->device_active_only_time; break; default: - ret = 0; goto out; } ret = time_to_avg_nsec(val, cmb->sample_count); @@ -841,27 +836,20 @@ static int set_cmbe(struct ccw_device *cdev, u32 mme) return set_schib_wait(cdev, mme, 1, mba); } - static u64 read_cmbe(struct ccw_device *cdev, int index) { - struct cmbe *cmb; struct cmb_data *cmb_data; - u32 val; - int ret; unsigned long flags; - - ret = cmf_cmb_copy_wait(cdev); - if (ret < 0) - return 0; + struct cmbe *cmb; + int ret = 0; + u32 val; spin_lock_irqsave(cdev->ccwlock, flags); cmb_data = cdev->private->cmb; - if (!cmb_data) { - ret = 0; + if (!cmb_data) goto out; - } - cmb = cmb_data->last_block; + cmb = cmb_data->hw_block; switch (index) { case cmb_ssch_rsch_count: ret = cmb->ssch_rsch_count; @@ -891,7 +879,6 @@ static u64 read_cmbe(struct ccw_device *cdev, int index) val = cmb->initial_command_response_time; break; default: - ret = 0; goto out; } ret = time_to_avg_nsec(val, cmb->sample_count); @@ -982,18 +969,14 @@ static ssize_t cmb_show_avg_sample_interval(struct device *dev, struct device_attribute *attr, char *buf) { - struct ccw_device *cdev; - long interval; + struct ccw_device *cdev = to_ccwdev(dev); unsigned long count; - struct cmb_data *cmb_data; + long interval; - cdev = to_ccwdev(dev); count = cmf_read(cdev, cmb_sample_count); spin_lock_irq(cdev->ccwlock); - cmb_data = cdev->private->cmb; if (count) { - interval = cmb_data->last_update - - cdev->private->cmb_start_time; + interval = get_tod_clock() - cdev->private->cmb_start_time; interval = (interval * 1000) >> 12; interval /= count; } else |