Messages in this thread |  | | | Date | Mon, 16 Sep 1996 16:18:28 +0200 (MET DST) | | From | Hans Lermen <> | | Subject | Re: Module Versioning Problems: How to "probe" for SMP |
| |
On Mon, 16 Sep 1996, Alan Cox wrote:
> > It also would be great if we have a kernel parameter to force an SMP-kernel > > to use only one CPU (e.g. smpboot=no). This would not need to change > > the BIOS's setup. > > A one processor SMP boot isnt the same as a non SMP kernel at all.
Agreed. Forget that one ;-)
> Also > smp_num_cpus is a constant in the single processor kernel so the loops fold ^^^^^^^^^^^^ > out of the single CPU kernel
Yes, I know about it. However, there is an important difference (though it is folded):
In an SMP kernel 'smp_num_cpus' is a _variable_, in non-SMP kernel it is a '#define smp_num_cpus 1', it is neither in ksyms nor can it be checked in a module or insmod.
Really, it would be good to have it as _variable_ in both kernel types.
So long, Hans <lermen@fgan.de>
|  |