Re: [PATCH] scsi: debug: remove jiffies_to_timespec

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On 2017-11-27 12:36 PM, Arnd Bergmann wrote:
There is no need to go through an intermediate timespec to convert
to ktime_t when we just want a simple multiplication. This gets
rid of one of the few users of jiffies_to_timespec, which I
hope to remove as part of the y2038 cleanup.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Acked-by: Douglas Gilbert <dgilbert@xxxxxxxxxxxx>

---
  drivers/scsi/scsi_debug.c | 5 +----
  1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index e4f037f0f38b..df7e9db44d44 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -4085,10 +4085,7 @@ static int schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip,
  		ktime_t kt;
if (delta_jiff > 0) {
-			struct timespec ts;
-
-			jiffies_to_timespec(delta_jiff, &ts);
-			kt = ktime_set(ts.tv_sec, ts.tv_nsec);
+			kt = ns_to_ktime((u64)delta_jiff * (NSEC_PER_SEC / HZ));
  		} else
  			kt = sdebug_ndelay;
  		if (NULL == sd_dp) {





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