Re: [PATCH] scsi: lpfc: use monotonic timestamps for statistics
From: Martin K. Petersen
Date: Tue Jun 26 2018 - 12:03:31 EST
Arnd,
> The get_seconds() function suffers from a possible overflow in 2038 or
> 2106, as well as jitter due to settimeofday or leap second updates,
> and is deprecated.
>
> As we are interested in elapsed time only, using ktime_get_seconds()
> to read the CLOCK_MONOTONIC timebase is ideal here. This also lets us
> remove the hack that tries to deal with get_seconds() going slightly
> backwards, which cannot happen with montonic timestamps.
Applied to 4.19/scsi-queue. Thanks!
--
Martin K. Petersen Oracle Linux Engineering