linux-kernel - Re: [PATCH 1/5] x86: Change size of node ids from u8 to u16 fixup

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Message-ID: <Pine.LNX.4.64.0801182055190.15604@fbirervta.pbzchgretzou.qr>
Date:	Fri, 18 Jan 2008 20:56:17 +0100 (CET)
From:	Jan Engelhardt <jengelh@...putergmbh.de>
To:	travis@....com
cc:	Andrew Morton <akpm@...ux-foundation.org>, Andi Kleen <ak@...e.de>,
	mingo@...e.hu, Christoph Lameter <clameter@....com>,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Eric Dumazet <dada1@...mosbay.com>
Subject: Re: [PATCH 1/5] x86: Change size of node ids from u8 to u16 fixup


On Jan 18 2008 10:30, travis@....com wrote:
>--- a/include/linux/numa.h
>+++ b/include/linux/numa.h
>@@ -10,4 +10,10 @@
> 
> #define MAX_NUMNODES    (1 << NODES_SHIFT)
> 
>+#if MAX_NUMNODES > 256
>+typedef u16 numanode_t;
>+#else
>+typedef u8 numanode_t;
>+#endif
>+

Do we really need numanode_t in userspace? I'd rather not, especially
when its type is dependent on MAX_NUMNODES. Wrap with #ifdef __KERNEL__.
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