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SubjectRe: [PATCH 01/11] linux/time64.h:Introduce the 'struct itimerspec64' for 64bit
On Mon, 20 Apr 2015, Thomas Gleixner wrote:
> On Mon, 20 Apr 2015, Baolin Wang wrote:
> > This patch introduces the 'struct itimerspec64' for 64bit to replace itimerspec,
> > and also introduces the conversion methods: itimerspec64_to_itimerspec() and
> > itimerspec_to_itimerspec64(), that makes itimerspec to ready for 2038 year.
> >
> > Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
> > ---
> > include/linux/time64.h | 13 +++++++++++++
> > 1 file changed, 13 insertions(+)
> >
> > diff --git a/include/linux/time64.h b/include/linux/time64.h
> > index a383147..3647bdd 100644
> > --- a/include/linux/time64.h
> > +++ b/include/linux/time64.h
> > @@ -18,6 +18,11 @@ struct timespec64 {
> > };
> > #endif
> >
> > +struct itimerspec64 {
> > + struct timespec64 it_interval; /* timer period */
> > + struct timespec64 it_value; /* timer expiration */
> > +};

Aside of the macro mess. This really wants to be conditional on 64/32
but in the same way as we have the different implementations for
timespec64.

Your patch enforces a useless conversion from and to itimerspec64 even
on 64 bit because the compiler cannot map the types.

Sigh. timespec64 is a proper guidance here.

Thanks,

tglx


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