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-rw-r--r--arch/s390/kernel/topology.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 14ef6f05e432..bcef00766a64 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -37,7 +37,8 @@ struct tl_cpu {
};
struct tl_container {
- unsigned char reserved[8];
+ unsigned char reserved[7];
+ unsigned char id;
};
union tl_entry {
@@ -58,6 +59,7 @@ struct tl_info {
struct core_info {
struct core_info *next;
+ unsigned char id;
cpumask_t mask;
};
@@ -73,6 +75,7 @@ static DECLARE_WORK(topology_work, topology_work_fn);
static DEFINE_SPINLOCK(topology_lock);
cpumask_t cpu_core_map[NR_CPUS];
+unsigned char cpu_core_id[NR_CPUS];
static cpumask_t cpu_coregroup_map(unsigned int cpu)
{
@@ -116,6 +119,7 @@ static void add_cpus_to_core(struct tl_cpu *tl_cpu, struct core_info *core)
for_each_present_cpu(lcpu) {
if (cpu_logical_map(lcpu) == rcpu) {
cpu_set(lcpu, core->mask);
+ cpu_core_id[lcpu] = core->id;
smp_cpu_polarization[lcpu] = tl_cpu->pp;
}
}
@@ -158,6 +162,7 @@ static void tl_to_cores(struct tl_info *info)
break;
case 1:
core = core->next;
+ core->id = tle->container.id;
break;
case 0:
add_cpus_to_core(&tle->cpu, core);
@@ -165,10 +170,11 @@ static void tl_to_cores(struct tl_info *info)
default:
clear_cores();
machine_has_topology = 0;
- return;
+ goto out;
}
tle = next_tle(tle);
}
+out:
spin_unlock_irq(&topology_lock);
}
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