lkml.org 
[lkml]   [2007]   [Jun]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC] [Patch 4/4] lock contention tracking slimmed down
Ingo Molnar wrote:
> if the infrastructure your are advocating does not allow us to keep the
> existing output then it's simply not flexible enough.

Let's be precise. If "keep the existing output" means any format change is
unacceptible to you, then I broke things. If it means that my method provides
data equivalent in respect of content, then I didn't break the lock contention
output.

> Why on earth are you even arguing about this?
> A "cleanup" should not change the output, simple as that.
> Do a patch that has the _same_ output and then we can
> see whether it's a good patch. You made the same mistake with your
> /proc/timer_stats cleanups.

We got to be careful here. My other proposal was doomed because timerstat became
kernel ABI in the meantime. We won't break the kernel ABI. I was late, as simple
as that.

The lock contention stuff isn't kernel ABI yet. This is -mm code, stuff
intented for a wider audience and discussion. It should be perfectly fine
to scrutinize kernel ABI additions before we get beyond the point of no return.

> I dont like NACK-ing patches but you seem to
> be missing the basic precondition of cleanups: no functional effect to
> the code, and certainly no change in output.

I don't see the point of judging something by goals that have not been set.
I have advertised my patches as: same purpose, different or generalised method,
differences in output format, output equivalent in respect of content,
much more code sharing.

Martin

-
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/

\
 
 \ /
  Last update: 2007-06-08 18:11    [W:0.084 / U:1.536 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site