cpumask: convert node_to_cpumask_map[] to cpumask_var_t
Impact: reduce kernel memory usage when CONFIG_CPUMASK_OFFSTACK=y
Straightforward conversion: done for 32 and 64 bit kernels.
node_to_cpumask_map is now a cpumask_var_t array.
64-bit used to be a dynamic cpumask_t array, and 32-bit used to be a
static cpumask_t array.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index eee1490..9d2b3d2 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -681,12 +681,12 @@
void __cpuinit numa_add_cpu(int cpu)
{
- cpu_set(cpu, node_to_cpumask_map[early_cpu_to_node(cpu)]);
+ cpumask_set_cpu(cpu, node_to_cpumask_map[early_cpu_to_node(cpu)]);
}
void __cpuinit numa_remove_cpu(int cpu)
{
- cpu_clear(cpu, node_to_cpumask_map[early_cpu_to_node(cpu)]);
+ cpumask_clear_cpu(cpu, node_to_cpumask_map[early_cpu_to_node(cpu)]);
}
#else /* CONFIG_DEBUG_PER_CPU_MAPS */
@@ -700,17 +700,17 @@
cpumask_t *mask;
char buf[64];
- if (node_to_cpumask_map == NULL) {
- printk(KERN_ERR "node_to_cpumask_map NULL\n");
+ mask = node_to_cpumask_map[node];
+ if (mask == NULL) {
+ printk(KERN_ERR "node_to_cpumask_map[%i] NULL\n", node);
dump_stack();
return;
}
- mask = &node_to_cpumask_map[node];
if (enable)
- cpu_set(cpu, *mask);
+ cpumask_set_cpu(cpu, mask);
else
- cpu_clear(cpu, *mask);
+ cpumask_clear_cpu(cpu, mask);
cpulist_scnprintf(buf, sizeof(buf), mask);
printk(KERN_DEBUG "%s cpu %d node %d: mask now %s\n",