Adrian,
On Sat, Dec 23, 2006 at 12:40:15PM +0100, Adrian Bunk wrote:
> >
> > If you look at the perfmon-new-base patch, you'll see a base.diff patch which
> > includes this one. I am slowly getting rid of this requirement by pushing
> > those "infrastructure patches" to mainline so that the perfmon patch gets
> > smaller over time. Submitting smaller patches makes it easier for maintainers
> > to integrate.
>
> No, the preferred way is to start with getting both the infrastructure
> and the users into -mm.
>
> Adding infrastructure without users doesn't fit into the kernel
> development model.
>
I am hearing conflicting opinions on this one.
Perfmon is a fairly big patch. It is hard to take it as one. I have tried to
split it up in smaller, more manageable pieces as requested by top-level
maintainers. This process implies that I supply small patches which may not
necessarily have users just yet.
> The unused x86-64 idle notifiers are now bloating the kernel since
> nearly one year.
>
> > > And why does it bloat the kernel with EXPORT_SYMBOL's although even your
> > > perfmon-new-base-061204 doesn't seem to add any modular user?
> >
> Where does the perfmon code use the EXPORT_SYMBOL's?
The perfmon patch includes several kernel modules which make use of
the exported entry points. The following symbols are exported:
pfm_pmu_register/pfm_pmu_unregister:
* PMU description module registration.
* Used to describe PMU model.
* Used by perfmon_p4.c, perfmon_core.c, perfmon_mckinley.c, and others
pfm_fmt_register/pfm_fmt_unregister:
* Sampling format module registration
* Used by perfmon_dfl_smpl.c, perfmon_pebs_smpl.c
pfm_interrupt_handler:
* PMU interrupt handler
* Used by MIPS-specific perfmon code
pfm_pmu_conf/pfm_controls:
* global state/control variable
All exported symbols are currently used. Why are you saying this adds bloat?
--
-Stephane
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