On Thursday 21 May 2015 10:56:34 Geert Uytterhoeven wrote:
> > + * value using
> > + *
> > + * user_semid_ds.sem_otime = kernel_semid64_ds.sem_otime +
> > + * (long long)(kernel_semid64_ds.sem_otime_high << 32)
>
> The cast to "long long" should be inside the parentheses, to promote the
> (32-bit) sem_otime_high to a first 64-bit integer first.
> Else it will be shifted into oblivion (oh no, C undefined behavior).
>
>
Fixed now to say
* user_semid_ds.sem_otime = kernel_semid64_ds.sem_otime +
* ((long long)kernel_semid64_ds.sem_otime_high << 32)
Thanks!
Arnd
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