PATCH/RFC numa: ia64: support memoryless nodes Against: 2.6.33-mmotm-100302-1838 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@xxxxxx> New in V2 arch/ia64/Kconfig | 4 ++++ arch/ia64/kernel/smpboot.c | 1 + 2 files changed, 5 insertions(+) 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 @@ -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 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 @@ -394,6 +394,7 @@ 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); -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>