Re: [PATCH RT] make hrtimer_nanosleep return immediately if timehas passed
From: Steven Rostedt
Date: Mon Jan 09 2006 - 20:49:27 EST
On Mon, 9 Jan 2006, George Anzinger wrote:
> Steven Rostedt wrote:
>
> Uh... I have been wondering about the "mode" thing, thinking "flags" might be
> better. And allowing, say, a "return if elapsed" flag as well as the ABS
> flag. Then all you would need to do is to add the "return if elapsed" flag
> to the nanosleep calls. I have other reasons for wanting to expand the
> "mode" to more that two states... but, even with out that, I think the result
> would be a) less code, and b) easier to follow and understand. I just have
> trouble pushing a word on the stack to make a call and then use only one bit
> of it when it could be combined...
And I perfectly agree with you :)
The problem is that the hrtimes is not my code, and I don't like doing
too many changes in code that I don't understand the consequences of. As
you showed me earlier, that the previous change broke the posix_timers.
So I really only did the bare minimum to fix what I considered a bug, and
let Thomas, John, Ingo or yourself do a proper fix. Someone that
understands the timers better than I do.
Currently, it seems those people are too busy, and I just wanted a quick
fix. I personally didn't like the patch, but my nose is stuck more into
the scheduling, memory and Ingo's rt_mutex now to spend time understanding
all the timer code. ;)
>
> Never the less, the following code looks like is does the right thing.
>
This was all I asked for.
Thanks,
-- Steve
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/