[PATCH v3] mtd: test: Replace timeval with ktime_t in speedtest.c and torturetest.c
Brian Norris
computersforpeace at gmail.com
Wed Jan 7 17:26:16 PST 2015
On Thu, Dec 18, 2014 at 08:53:10AM +0100, Arnd Bergmann wrote:
> On Thursday 18 December 2014 11:23:31 Chunyan Zhang wrote:
> > This patch changes the 32-bit time type (timeval) to the 64-bit one
> > (ktime_t), since 32-bit time types will break in the year 2038.
> >
> > I use ktime_t instead of timeval to define 'start' and 'finish'
> > which are used to get the time for tow points.
> >
> > This patch also changes do_gettimeofday() to ktime_get() accordingly,
> > since ktime_get returns a ktime_t, but do_gettimeofday returns a
> > struct timeval, and the other reason is that ktime_get() uses
> > the monotonic clock.
> >
> > This patch is based on another patch which privides a millisecond
> > time difference function 'ktime_ms_delta' in ktime.h
> >
> > http://lkml.iu.edu//hypermail/linux/kernel/1412.2/00625.html
> >
> > Signed-off-by: Chunyan Zhang <zhang.chunyan at linaro.org>
> > Reviewed-by: Arnd Bergmann <arnd at arndb.de>
> >
>
> The new version still looks good to me, but as there is now a
> dependency on another patch, I'd suggest we queue this up in the
> y2038 branch together with the patch that introduces ktime_ms_delta.
>
> David or Brian, can you provide an Ack for this, or do you have
> any objections?
I just tested v2, which doesn't have this dependency and has only a
trivial difference from v3. Seems to work OK. So:
Tested-by: Brian Norris <computersforpeace at gmail.com>
Acked-by: Brian Norris <computersforpeace at gmail.com>
Feel free to queue it in the dependent branch.
Thanks,
Brian
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