From fd1197f1131a1f1d8bc192f9cfbbe17e305f17f3 Mon Sep 17 00:00:00 2001
From: Lee Schermerhorn <lee.schermerhorn@hp.com>
Date: Wed, 26 May 2010 14:45:01 -0700
Subject: numa: ia64: support numa_mem_id() for memoryless nodes

Enable 'HAVE_MEMORYLESS_NODES' by default when NUMA configured on ia64.
Initialize percpu 'numa_mem' variable when starting secondary cpus.
Generic initialization will handle the boot cpu.

Nothing uses 'numa_mem_id()' yet.  Subsequent patch with modify slab to
use this.

Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Nick Piggin <npiggin@suse.de>
Cc: David Rientjes <rientjes@google.com>
Cc: Eric Whitney <eric.whitney@hp.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/ia64/Kconfig | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'arch/ia64/Kconfig')

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 00ba08708873..95610820041e 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -502,6 +502,10 @@ config USE_PERCPU_NUMA_NODE_ID
 	def_bool y
 	depends on NUMA
 
+config HAVE_MEMORYLESS_NODES
+	def_bool y
+	depends on NUMA
+
 config ARCH_PROC_KCORE_TEXT
 	def_bool y
 	depends on PROC_KCORE
-- 
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