[OpenAFS-devel] Linux Kernel Module build question

[Derek Atkins]

Yep, I figured this out late last night, but thank you for verifying
what I thought.  Based on this....

I have sent a patch to Derrick that will enable me to better build Red
Hat kernels (especially on 7.1).  The kludge I'm going to use is to
replace /boot/kernel.h for each kernel-module build.

The other problem is choosing the right module.  I'm still working on
that one.

-derek

Jeremy Katz <katzj@linuxpower.org> writes:

> On Wednesday, July 11 2001, Derek Atkins said:
> > Currently the Module build system for Linux automatically compiles
> > with -U__SMP__ on UP/SP builds and -D__SMP__ on MP/SMP builds.  These
> > are currently defined in src/libafs/MakefileProto.LINUX.in.  My
> > question is: do we actually need this?  Does the AFS code depend on
> > these definitions existing?  Who is actually depending on __SMP__
> > being defined (or undefined)?
> 
> These are used in the 2.2 kernel headers for defining various things
> based on whether you are using an SMP or UP kernel.  Primary use is for
> making sure the proper kernel lock declarations are used.  Nothing in
> the 2.4 kernel should require __SMP__ to be defined; if it does, that is
> considered to be a driver bug which should be fixed.
> 
> Cheers,
> 
> Jeremy
> 
> -- 
> Jeremy Katz
> katzj@linuxpower.org    | jlkatz@eos.ncsu.edu
> http://linuxpower.org   | Developer, NCSU Realm Kit for Red Hat Linux
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> 
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-- 
       Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory
       Member, MIT Student Information Processing Board  (SIPB)
       URL: http://web.mit.edu/warlord/    PP-ASEL-IA     N1NWH
       warlord@MIT.EDU                        PGP key available