From: Rusty Russell <rusty@rustcorp.com.au>
To: dipankar@in.ibm.com
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] New per-cpu patch v2.5.1
Date: Thu, 27 Dec 2001 17:50:33 +1100 [thread overview]
Message-ID: <20011227175033.13e1fcd0.rusty@rustcorp.com.au> (raw)
In-Reply-To: <20011220174335.A10791@in.ibm.com>
In-Reply-To: <20011220174335.A10791@in.ibm.com>
On Thu, 20 Dec 2001 17:43:35 +0530
Dipankar Sarma <dipankar@in.ibm.com> wrote:
> Hi Rusty,
>
> I appreciate the noble gesture of allowing NUMA people to
> locate the per-cpu areas in different places in memory ;-)
>
> That said, memcpy of static per-cpu areas doesn't seem right.
> Why copy the same area to all the dynamically allocated per-cpu
> areas ?
Initialization. Sure, we can't do it with the current macros...
> Also, shouldn't the size be &__per_cpu_end - &__per_cpu_start ?
Oops... Yes. (I wrote this just before my Xmas break, and didn't have time
to test it).
> And how do we use this with per-cpu data used right
> from smp boot, say apic_timer_irqs[] ?
No. You can't have everthing (without going into the arch-specific code).
Cheers,
Rusty.
--
Anyone who quotes me in their sig is an idiot. -- Rusty Russell.
next prev parent reply other threads:[~2001-12-30 4:11 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-20 12:13 Dipankar Sarma
2001-12-27 6:50 ` Rusty Russell [this message]
2002-01-13 5:52 ` Rusty Russell
-- strict thread matches above, loose matches on Subject: below --
2001-12-20 6:15 Rusty Russell
2001-12-20 6:24 ` Robert Love
2001-12-26 0:39 ` Rusty Russell
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