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Date:      Fri, 22 Jun 2001 10:35:32 -0700 (PDT)
From:      John Baldwin <jhb@FreeBSD.org>
To:        Alfred Perlstein <bright@sneakerz.org>
Cc:        freebsd-current@FreeBSD.org, Bosko Milekic <bmilekic@technokratis.com>, "Alexander N. Kabaev" <ak03@gte.com>
Subject:   Re: [HEADS-UP]: Mbuf allocator changes
Message-ID:  <XFMail.010622103532.jhb@FreeBSD.org>
In-Reply-To: <20010622121725.X4543@sneakerz.org>

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On 22-Jun-01 Alfred Perlstein wrote:
> * Alexander N. Kabaev <ak03@gte.com> [010622 10:46] wrote:
>> UP kernel can not be compiled in -CURRENT after your changes because
>> kern/subr_mbuf.c references mp_ncpus variable, which is defined only in SMP
>> case. Should this variable be moved out of #ifdef SMP?
> 
> Yes, I asked for this months ago, I thought it was already done.

mp_npcus is not initialized, etc. in the UP case.  I suppose it could be
statically initialized to 1 and moved, but in that case it needs renaming, as
mp_ncpus implies SMP (mp_ prefix).  If you want to make it ncpus and move it to
sys/systm.h and stick it somewhere MI initialized to 1 that is fine.  Then
hw.ncpus can reference that (well, it's called hw.ncpu right now, perhaps it
should be renamed to match the variable *shrug*) and kern.smp.cpus can die as
it won't be needed any longer.

> -Alfred

-- 

John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/
PGP Key: http://www.baldwin.cx/~john/pgpkey.asc
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/

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