From: Andi Kleen <ak@muc.de>
To: Mikael Pettersson <mikpe@csd.uu.se>
Cc: Andi Kleen <ak@muc.de>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86 performance counters driver 3.0-pre2 for 2.5.44: [2/4] x86 support
Date: Fri, 25 Oct 2002 14:40:01 +0200 [thread overview]
Message-ID: <20021025124001.GA29937@averell> (raw)
In-Reply-To: <15801.14413.909403.323948@kim.it.uu.se>
> For what values of cpu is per_cpu(var,cpu) valid? For those where
> cpu_online(cpu) is true, or those where cpu_possible(cpu) is true?
> (I need to convert a memset() on the per_cpu_cache[] array to the
> per_cpu(,) framework.)
Currently for cpu_possible(), but there is a patchkit around that
makes it only true for cpu_online() so better assume that.
Of course that would require a hotplug CPU handler, but I would
just ignore that for now.
-Andi
prev parent reply other threads:[~2002-10-25 12:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-24 15:00 [PATCH] x86 performance counters driver 3.0-pre2 for 2.5.44: [2/4] x86 support Mikael Pettersson
2002-10-24 15:49 ` Andi Kleen
2002-10-25 12:25 ` Mikael Pettersson
2002-10-25 12:40 ` Andi Kleen [this message]
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