Date: Thu, 10 Apr 2003 00:33:23 -0700 (PDT) From: Julian Elischer <julian@elischer.org> To: FreeBSD current users <current@FreeBSD.ORG> Subject: Re: variable mp_ncpu Message-ID: <Pine.BSF.4.21.0304100028020.55025-100000@InterJet.elischer.org> In-Reply-To: <Pine.BSF.4.21.0304100022040.55025-100000@InterJet.elischer.org>
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On Thu, 10 Apr 2003, Julian Elischer wrote: > > Would it be possible to have the sysclt hw.ncpu > always available, even in a UP kernel? I meant "to a kernel routine" > > it is currently only valid in an SMP kernel > whichmeans that userland code that needs to know this has to do: ok It's too late at night.. hw.ncpu does exist in UP what I really meant to say is: could there always be the kernel variable mp_ncpus? for example the following code is in the kernel: 605 /* Too bad, why hasn't kernel always a cpu counter !? */ 606 #ifdef SMP 607 ncpus = mp_ncpus; 608 #else 609 ncpus = 1; 610 #endif ok, so maybe it would need to be renamed, but at teh moment I need to have 2 kernel modules, one for SMP and one for UP to be able to cope with this if it needs to know how many cpus there are.. (or am I missing something still)
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