From: Ingo Molnar The patch below fixes smp_processor_id() warnings that are triggered by numa_node_id(). All uses of numa_node_id() in mm/mempolicy.c seem to use it as a 'hint' only, not as a correctness number. Once a node is established, it's used in a preemption-safe way. So the simple fix is to disable the checking for numa_node_id(). But additional review would be more than welcome, because this patch turns off the preemption-checking of numa_node_id() permanently. Tested on amd64. Signed-off-by: Ingo Molnar Signed-off-by: Andrew Morton --- 25-akpm/include/linux/mmzone.h | 2 +- 1 files changed, 1 insertion(+), 1 deletion(-) diff -puN include/linux/mmzone.h~fix-smp_processor_id-warning-in-numa_node_id include/linux/mmzone.h --- 25/include/linux/mmzone.h~fix-smp_processor_id-warning-in-numa_node_id 2004-10-28 01:19:25.114460048 -0700 +++ 25-akpm/include/linux/mmzone.h 2004-10-28 01:19:25.118459440 -0700 @@ -375,7 +375,7 @@ int lower_zone_protection_sysctl_handler #include /* Returns the number of the current Node. */ -#define numa_node_id() (cpu_to_node(smp_processor_id())) +#define numa_node_id() (cpu_to_node(_smp_processor_id())) #ifndef CONFIG_DISCONTIGMEM _