Andrew Morton writes:
> > + if ((time_adjust_step = time_adjust) != 0 ) {
>
> <mutters something about coding style>
Seems perfectly plain to me, but if you don't like it I can change it.
>
> > + /*
> > + * Limit the amount of the step to be in the range
> > + * -tickadj .. +tickadj
> > + */
> > + time_adjust_step = min(time_adjust_step, (long)tickadj);
> > + time_adjust_step = max(time_adjust_step, (long)-tickadj);
> > + }
> > + delta_nsec = tick_nsec + time_adjust_step * 1000;
>
> Is that going to overflow if sizeof(long) == 4?
No. time_adjust_step is in microseconds and is restricted to the
range -tickadj .. tickadj, and tickadj is between 1 and 10 (assuming
HZ >= 50). tick_nsec is around 1e9 / HZ. There's no way delta_nsec
could end up less than 0 or larger than around 20 million for any
reasonable HZ value (i.e. >= 50).
Paul.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
