s390/topology: remove topology lock
Since we are already protected by the "sched_domains_mutex" lock, we can
safely remove the topology lock.
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/numa/mode_emu.c b/arch/s390/numa/mode_emu.c
index 9d4e1e1..646cd94 100644
--- a/arch/s390/numa/mode_emu.c
+++ b/arch/s390/numa/mode_emu.c
@@ -51,6 +51,11 @@
static int emu_nodes = 1;
/* NUMA stripe size */
static unsigned long emu_size;
+
+/*
+ * Node to core pinning information updates are protected by
+ * "sched_domains_mutex".
+ */
/* Pinned core to node mapping */
static int cores_to_node_id[CONFIG_NR_CPUS];
/* Total number of pinned cores */
@@ -393,7 +398,7 @@
* Transfer physical topology into a NUMA topology and modify CPU masks
* according to the NUMA topology.
*
- * This function is called under the CPU hotplug lock.
+ * Must be called with "sched_domains_mutex" lock held.
*/
static void emu_update_cpu_topology(void)
{