From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lee Schermerhorn Subject: [PATCH/RFC 5/6] numa: ia64: support numa_mem_id() for memoryless nodes Date: Fri, 13 Nov 2009 16:18:17 -0500 Message-ID: <20091113211817.15074.72532.sendpatchset@localhost.localdomain> References: <20091113211714.15074.29078.sendpatchset@localhost.localdomain> Return-path: Received: from g1t0026.austin.hp.com ([15.216.28.33]:44072 "EHLO g1t0026.austin.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932301AbZKMVNE (ORCPT ); Fri, 13 Nov 2009 16:13:04 -0500 In-Reply-To: <20091113211714.15074.29078.sendpatchset@localhost.localdomain> Sender: linux-arch-owner@vger.kernel.org List-ID: To: linux-arch@vger.kernel.org, linux-mm@kvack.org Cc: akpm@linux-foundation.org, Mel Gorman , Christoph Lameter , Nick Piggin , David Rientjes , eric.whitney@hp.com PATCH/RFC numa: ia64: support memoryless nodes Against: 2.6.32-rc5-mmotm-091101-1001 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 New in V2 --- arch/ia64/Kconfig | 4 ++++ arch/ia64/kernel/smpboot.c | 1 + 2 files changed, 5 insertions(+) Index: linux-2.6.32-rc5-mmotm-091101-1001/arch/ia64/Kconfig =================================================================== --- linux-2.6.32-rc5-mmotm-091101-1001.orig/arch/ia64/Kconfig 2009-11-11 12:09:13.000000000 -0500 +++ linux-2.6.32-rc5-mmotm-091101-1001/arch/ia64/Kconfig 2009-11-11 12:16:56.000000000 -0500 @@ -499,6 +499,10 @@ 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 Index: linux-2.6.32-rc5-mmotm-091101-1001/arch/ia64/kernel/smpboot.c =================================================================== --- linux-2.6.32-rc5-mmotm-091101-1001.orig/arch/ia64/kernel/smpboot.c 2009-11-11 12:05:42.000000000 -0500 +++ linux-2.6.32-rc5-mmotm-091101-1001/arch/ia64/kernel/smpboot.c 2009-11-11 12:16:56.000000000 -0500 @@ -395,6 +395,7 @@ smp_callin (void) * numa_node_id() works after this. */ set_numa_node(cpu_to_node_map[cpuid]); + set_numa_mem(local_memory_node(cpu_to_node_map[cpuid])); ipi_call_lock_irq(); spin_lock(&vector_lock);