Re: gettimeofday nanoseconds patch (makes it possible for theposix-timer functions to return higher accuracy)

From: john stultz
Date: Wed Jul 14 2004 - 16:21:04 EST


On Wed, 2004-07-14 at 13:28, Christoph Lameter wrote:
> > None the less, I do understand the desire for the change (and am working
> > to address it in 2.7), so could you at least use a better name then
> > gettimeofday()? Maybe get_ns_time() or something? Its just too similar
> > to do_gettimeofday and the syscall gettimeofday().
>
> Right. I had it named getnstimeofday before but the feeling was that the
> patch should not introduce a new name. Any approach that would allow
> progress on the issue would be fine with me.

Fair enough. getnstimeofday() sounds good enough for me.

> > Really, I feel the cleaner method is to fix do_gettimeofday() so it
> > returns a timespec and then convert it to a timeval in
> > sys_gettimeofday(). However this would add overhead to the syscall, so I
> > doubt folks would go for it.
>
> do_gettimeofday is used all over the linux kernel for a variety of
> purposes and lots of code depends on the presence of a timeval struct.

Indeed, it would be a decent amount of work to clean that up as well.

thanks
-john

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