scsi-ioctl: use clock_t <> jiffies

Convert the timeout ioctl scalling to use the clock_t functions
which are much more accurate with some USER_HZ vs HZ combinations.

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index d0bb92cbefb..ee9c67d7e1b 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -60,7 +60,7 @@ static int scsi_get_bus(struct request_queue *q, int __user *p)
 
 static int sg_get_timeout(struct request_queue *q)
 {
-        return q->sg_timeout / (HZ / USER_HZ);
+        return jiffies_to_clock_t(q->sg_timeout);
 }
 
 static int sg_set_timeout(struct request_queue *q, int __user *p)
@@ -68,7 +68,7 @@ static int sg_set_timeout(struct request_queue *q, int __user *p)
         int timeout, err = get_user(timeout, p);
 
         if (!err)
-                q->sg_timeout = timeout * (HZ / USER_HZ);
+                q->sg_timeout = clock_t_to_jiffies(timeout);
 
         return err;
 }