On 15 July 2015 at 18:31, Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote: > On Wed, 15 Jul 2015, Baolin Wang wrote: > >> The cputime_to_timespec() and timespec_to_cputime() functions are >> not year 2038 safe on 32bit systems due to that the struct timepsec >> will overflow in 2038 year. > > And how is this relevant? cputime is not based on wall clock time at > all. So what has 2038 to do with cputime? > > We want proper explanations WHY we need such a change. When converting the posix-cpu-timers, it call the cputime_to_timespec() function. Thus it need a conversion for this function. You can see that conversion in patch "posix-cpu-timers: Convert to y2038 safe callbacks" from https://git.linaro.org/people/baolin.wang/upstream_0627.git. And I also will explain this in the changelog. Thanks for your comments. > > Thanks, > > tglx > > -- Baolin.wang Best Regards -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
