Hi Andrew,
Following Christoph Hellwig's suggestion, aiming at a Linux Kernel Markers

inclusion for 2.6.24, I made a simplified version of the Linux Kernel Markers.

There are no more dependencies on any other patchset.
The modification only involved turning the immediate values into static

variables and adapting the documentation accordingly. It will have a little more

data cache impact when disabled than the version based on the immediate values,

but it is far less complex.
Since things have not moved much in the markers area recently (most of the

concerns were about the immediate values), I expect it to be ready for 2.6.24.
It applies to 2.6.23-rc7-mm1
Patches apply in this order:
seq_file_sorted.patch

module.c-sort-module-list.patch

kconfig-instrumentation.patch

linux-kernel-markers-architecture-independent-code.patch

linux-kernel-markers-instrumentation-menu.patch

linux-kernel-markers-documentation.patch

linux-kernel-markers-port-blktrace-to-markers.patch
Mathieu
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Mathieu Desnoyers

Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal

OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

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I've done a quick review and except for my usual nitpicking it looks

very good to me.  I'll try my sputrace code with this version and will

report on how it works.
I'd really love to see markers in 2.6.24.  The impact to core code of

the actual markers is minimal with some more struct fields in functions

in the module code, although we'll want Mathieu's fix for the modules

list aswell which is a little more invasive.  But I think we want that

one anyway.
I'd say we probably don't want the blktrace conversion that late in the

game, though - but we can queue that once together with the optimizations

from Mathieu's earlier patches in -mm.
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Well, since I just moved the marker iterators down in my patchset, I can

move down the module list fix altogether and keep it for later. It will
I provided blktrace as a first user of the markers, but I agree that it

may be a little late for merging. I can keep it for later too.
Mathieu
--

Mathieu Desnoyers

Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal

OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

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I we manage to get Dave's trace patches and your markers in I'll make

sure to get a sputrace version using them in as a demo for both.
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Great!
So the state of the patches for next post:
kconfig-instrumentation.patch

linux-kernel-markers.patch
(yeah, only 2 patches!) :)
I'm only waiting for you guys to settle about documentation/samples

before I can repost.
Mathieu
--

Mathieu Desnoyers

Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal

OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68

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