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authorSebastian Ott <sebott@linux.vnet.ibm.com>2017-09-12 11:21:00 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2017-09-28 07:29:43 +0200
commit08c6df97d65a1cb24393d2051bf12ab05f8d7fb6 (patch)
tree6deab9be48f8664b1a2a42bc40cf42d968b05ad5 /drivers/s390/cio/cmf.c
parents390/cmf: avg_utilization (diff)
downloadlinux-dev-08c6df97d65a1cb24393d2051bf12ab05f8d7fb6.tar.xz
linux-dev-08c6df97d65a1cb24393d2051bf12ab05f8d7fb6.zip
s390/cmf: use tod_to_ns()
Instead of open coding tod clock to ns conversions use the timex helper. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reviewed-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/cmf.c')
-rw-r--r--drivers/s390/cio/cmf.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/s390/cio/cmf.c b/drivers/s390/cio/cmf.c
index 0b10221c4661..7d59230e88bb 100644
--- a/drivers/s390/cio/cmf.c
+++ b/drivers/s390/cio/cmf.c
@@ -685,8 +685,7 @@ static int readall_cmb(struct ccw_device *cdev, struct cmbdata *data)
/* we only know values before device_busy_time */
data->size = offsetof(struct cmbdata, device_busy_time);
- /* convert to nanoseconds */
- data->elapsed_time = (time * 1000) >> 12;
+ data->elapsed_time = tod_to_ns(time);
/* copy data to new structure */
data->ssch_rsch_count = cmb->ssch_rsch_count;
@@ -945,8 +944,7 @@ static int readall_cmbe(struct ccw_device *cdev, struct cmbdata *data)
/* we only know values before device_busy_time */
data->size = offsetof(struct cmbdata, device_busy_time);
- /* conver to nanoseconds */
- data->elapsed_time = (time * 1000) >> 12;
+ data->elapsed_time = tod_to_ns(time);
cmb = cmb_data->last_block;
/* copy data to new structure */
@@ -1007,7 +1005,7 @@ static ssize_t cmb_show_avg_sample_interval(struct device *dev,
spin_lock_irq(cdev->ccwlock);
if (count) {
interval = get_tod_clock() - cdev->private->cmb_start_time;
- interval = (interval * 1000) >> 12;
+ interval = tod_to_ns(interval);
interval /= count;
} else
interval = -1;