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From: Mike Travis <travis@sgi.com>
To: Paul Mundt <lethal@linux-sh.org>, Mike Travis <travis@sgi.com>,
	Ingo Molnar <mingo@elte.hu>,
	Andrew Morton <akpm@linux-foundation.org>,
	bunk@kernel.org, linux-sh@vger.kernel.org,
	linux-kernel@vger.kernel.org, Richard Henderson <rth@twiddle.net>,
	Paul Mackerras <paulus@samba.org>,
	Anton Blanchard <anton@samba.org>,
	"David S. Miller" <davem@davemloft.net>,
	"William L. Irwin" <wli@holomorphy.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH 1/1] mm: define default cpu_to_node
Date: Fri, 09 May 2008 15:01:29 +0000	[thread overview]
Message-ID: <48246749.9000101@sgi.com> (raw)
In-Reply-To: <20080509052049.GA2161@linux-sh.org>

Paul Mundt wrote:
> On Thu, May 08, 2008 at 04:02:39PM -0700, Mike Travis wrote:
>>   * Some architectures have CONFIG_NUMA=y but do not define a
>>     default cpu_to_node macro.  This provides the default in
>>     asm-generic/topology.h but it relies on the fact that
>>     cpu_to_node is a defined macro (and not an inline function).
>>
> NACK.. This isn't going to work anyways, cpu_to_node() is just where the
> first build error occurs. If you do this, then parent_node() is the next
> one to blow up, node_to_cpumask() after that, etc, etc. For now I've just
> stubbed the asm-generic/topology.h definitions in to asm-sh/topology.h.


Ok, Thanks!  I was looking at that but without being able to compile it,
it was just a wild swing towards the fence... ;-)  And your rationale makes
sense, if an arch really has numa topology then it should define what that is.

Cheers,
Mike


WARNING: multiple messages have this Message-ID (diff)
From: Mike Travis <travis@sgi.com>
To: Paul Mundt <lethal@linux-sh.org>, Mike Travis <travis@sgi.com>,
	Ingo Molnar <mingo@elte.hu>,
	Andrew Morton <akpm@linux-foundation.org>,
	bunk@kernel.org, linux-sh@vger.kernel.org,
	linux-kernel@vger.kernel.org, Richard Henderson <rth@twiddle.net>,
	Paul Mackerras <paulus@samba.org>,
	Anton Blanchard <anton@samba.org>,
	"David S. Miller" <davem@davemloft.net>,
	"William L. Irwin" <wli@holomorphy.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH 1/1] mm: define default cpu_to_node
Date: Fri, 09 May 2008 08:01:29 -0700	[thread overview]
Message-ID: <48246749.9000101@sgi.com> (raw)
In-Reply-To: <20080509052049.GA2161@linux-sh.org>

Paul Mundt wrote:
> On Thu, May 08, 2008 at 04:02:39PM -0700, Mike Travis wrote:
>>   * Some architectures have CONFIG_NUMA=y but do not define a
>>     default cpu_to_node macro.  This provides the default in
>>     asm-generic/topology.h but it relies on the fact that
>>     cpu_to_node is a defined macro (and not an inline function).
>>
> NACK.. This isn't going to work anyways, cpu_to_node() is just where the
> first build error occurs. If you do this, then parent_node() is the next
> one to blow up, node_to_cpumask() after that, etc, etc. For now I've just
> stubbed the asm-generic/topology.h definitions in to asm-sh/topology.h.


Ok, Thanks!  I was looking at that but without being able to compile it,
it was just a wild swing towards the fence... ;-)  And your rationale makes
sense, if an arch really has numa topology then it should define what that is.

Cheers,
Mike


  reply	other threads:[~2008-05-09 15:01 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-08 23:02 [PATCH 0/1] mm: define default cpu_to_node Mike Travis
2008-05-08 23:02 ` Mike Travis
2008-05-08 23:02 ` [PATCH 1/1] " Mike Travis
2008-05-08 23:02   ` Mike Travis
2008-05-09  5:20   ` Paul Mundt
2008-05-09  5:20     ` Paul Mundt
2008-05-09 15:01     ` Mike Travis [this message]
2008-05-09 15:01       ` Mike Travis

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