Re: 2.6.18 perfmon new code base + libpfm + pfmon

From: Andrew Morton
Date: Wed Sep 27 2006 - 19:40:56 EST

On Wed, 27 Sep 2006 15:48:32 -0700
Stephane Eranian <eranian@xxxxxxxxxx> wrote:

> Andrew,
> Here is the summary of the various point raised by your review and the current
> status. I am hoping to close all points by next release.
> ...
> [akpm]: use fget_light() in some place instead of fget()
> - not sure understand when to use one versus the other

They are always interchangeable. fget_light() is simply an optimised,
messier-to-use version.

> ..
> [akpm]: carta_random32() should be in another header file
> - yes, I know. Should I create a specific header file? I don't think random.h
> is meant for this.

I suppose so. Or just stick the declaration into kernel.h.

I had a patch go past the other day which had a hand-rolled
fast-but-not-very-good pseudo random number generator in it. I couldn't
remember where I'd seen one, and now I can't remember what patch it was
that needed it. Sigh.

Anyway, a standalone patch which adds that function into lib/whatever.c
would be nice.

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