Re: [PATCH] Provide an interface for getting the current tick length

[Paul Mackerras <paulus@samba.org>]

Andrew Morton writes:

> Ah, you copied-and-pasted from update_wall_time_one_tick().

Yep, and I didn't even notice the extra space.

> Can we share that code?

We could share the code that computes time_adjust_step, i.e. this
much:

	if ((time_adjust_step = time_adjust) != 0) {
		/*
		 * We are doing an adjtime thing.  Prepare time_adjust_step to
		 * be within bounds.  Note that a positive time_adjust means we
		 * want the clock to run faster.
		 *
		 * 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);
	}

Is that enough to be worth factoring out?  Note that
update_wall_time_one_tick() needs both time_adjust_step and
delta_nsec, so to share more, we would have to have a function
returning two values and it would start to get ugly.

Paul.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/