From: Lee Schermerhorn <lee.schermerhorn@hp.com>
To: linux-arch@vger.kernel.org, linux-mm@kvack.org,
linux-numa@vger.kernel.org
Cc: Tejun Heo <tj@kernel.org>, Mel Gorman <mel@csn.ul.ie>,
Andi Kleen <andi@firstfloor.org>,
Christoph Lameter <cl@linux-foundation.org>,
Nick Piggin <npiggin@suse.de>,
David Rientjes <rientjes@google.com>,
akpm@linux-foundation.org, eric.whitney@hp.com
Subject: [PATCH/RFC 4/8] numa: ia64: use generic percpu var numa_node_id() implementation
Date: Thu, 04 Mar 2010 12:07:22 -0500 [thread overview]
Message-ID: <20100304170722.10606.82223.sendpatchset@localhost.localdomain> (raw)
In-Reply-To: <20100304170654.10606.32225.sendpatchset@localhost.localdomain>
Against: 2.6.33-mmotm-100302-1838
ia64: Use generic percpu implementation of numa_node_id()
+ intialize per cpu 'numa_node'
+ remove ia64 cpu_to_node() macro; use generic
+ define CONFIG_USE_PERCPU_NUMA_NODE_ID when NUMA configured
Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
New in V2
arch/ia64/Kconfig | 4 ++++
arch/ia64/include/asm/topology.h | 5 -----
arch/ia64/kernel/smpboot.c | 6 ++++++
3 files changed, 10 insertions(+), 5 deletions(-)
Index: linux-2.6.33-mmotm-100302-1838/arch/ia64/kernel/smpboot.c
===================================================================
--- linux-2.6.33-mmotm-100302-1838.orig/arch/ia64/kernel/smpboot.c
+++ linux-2.6.33-mmotm-100302-1838/arch/ia64/kernel/smpboot.c
@@ -390,6 +390,11 @@ smp_callin (void)
fix_b0_for_bsp();
+ /*
+ * numa_node_id() works after this.
+ */
+ set_numa_node(cpu_to_node_map[cpuid]);
+
ipi_call_lock_irq();
spin_lock(&vector_lock);
/* Setup the per cpu irq handling data structures */
@@ -632,6 +637,7 @@ void __devinit smp_prepare_boot_cpu(void
{
cpu_set(smp_processor_id(), cpu_online_map);
cpu_set(smp_processor_id(), cpu_callin_map);
+ set_numa_node(cpu_to_node_map[smp_processor_id()]);
per_cpu(cpu_state, smp_processor_id()) = CPU_ONLINE;
paravirt_post_smp_prepare_boot_cpu();
}
Index: linux-2.6.33-mmotm-100302-1838/arch/ia64/include/asm/topology.h
===================================================================
--- linux-2.6.33-mmotm-100302-1838.orig/arch/ia64/include/asm/topology.h
+++ linux-2.6.33-mmotm-100302-1838/arch/ia64/include/asm/topology.h
@@ -26,11 +26,6 @@
#define RECLAIM_DISTANCE 15
/*
- * Returns the number of the node containing CPU 'cpu'
- */
-#define cpu_to_node(cpu) (int)(cpu_to_node_map[cpu])
-
-/*
* Returns a bitmask of CPUs on Node 'node'.
*/
#define cpumask_of_node(node) ((node) == -1 ? \
Index: linux-2.6.33-mmotm-100302-1838/arch/ia64/Kconfig
===================================================================
--- linux-2.6.33-mmotm-100302-1838.orig/arch/ia64/Kconfig
+++ linux-2.6.33-mmotm-100302-1838/arch/ia64/Kconfig
@@ -498,6 +498,10 @@ config HAVE_ARCH_NODEDATA_EXTENSION
def_bool y
depends on NUMA
+config USE_PERCPU_NUMA_NODE_ID
+ def_bool y
+ depends on NUMA
+
config ARCH_PROC_KCORE_TEXT
def_bool y
depends on PROC_KCORE
--
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next prev parent reply other threads:[~2010-03-04 16:59 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-04 17:06 [PATCH/RFC 0/8] Numa: Use Generic Per-cpu Variables for numa_*_id() Lee Schermerhorn
2010-03-04 17:07 ` [PATCH/RFC 1/8] numa: prep: move generic percpu interface definitions to percpu-defs.h Lee Schermerhorn
2010-03-09 8:46 ` Tejun Heo
2010-03-09 14:13 ` Lee Schermerhorn
2010-03-10 9:06 ` Tejun Heo
2010-03-04 17:07 ` [PATCH/RFC 2/8] numa: add generic percpu var implementation of numa_node_id() Lee Schermerhorn
2010-03-04 18:44 ` Christoph Lameter
2010-03-04 17:07 ` [PATCH/RFC 3/8] numa: x86_64: use generic percpu var for numa_node_id() implementation Lee Schermerhorn
2010-03-04 18:47 ` Christoph Lameter
2010-03-04 20:42 ` Lee Schermerhorn
2010-03-04 21:16 ` Christoph Lameter
2010-03-04 17:07 ` Lee Schermerhorn [this message]
2010-03-04 18:48 ` [PATCH/RFC 4/8] numa: ia64: use generic percpu var " Christoph Lameter
2010-03-04 17:08 ` [PATCH/RFC 5/8] numa: Introduce numa_mem_id()- effective local memory node id Lee Schermerhorn
2010-03-04 18:52 ` Christoph Lameter
2010-03-04 19:28 ` Lee Schermerhorn
2010-03-04 17:08 ` [PATCH/RFC 6/8] numa: ia64: support numa_mem_id() for memoryless nodes Lee Schermerhorn
2010-03-04 17:08 ` [PATCH/RFC 7/8] numa: slab: use numa_mem_id() for slab local memory node Lee Schermerhorn
2010-03-04 17:08 ` [PATCH/RFC 8/8] numa: in-kernel profiling -- support memoryless nodes Lee Schermerhorn
2010-03-05 1:19 ` [PATCH/RFC 0/8] Numa: Use Generic Per-cpu Variables for numa_*_id() KAMEZAWA Hiroyuki
2010-03-05 1:25 ` Lee Schermerhorn
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