From 3a3814c28b13d038ce5e055fc01f9a7aa5b821b9 Mon Sep 17 00:00:00 2001 From: Michael Holzheu Date: Sat, 1 Aug 2015 18:12:41 +0200 Subject: 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 Signed-off-by: Michael Holzheu Signed-off-by: Martin Schwidefsky --- arch/s390/numa/mode_emu.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'arch/s390/numa/mode_emu.c') diff --git a/arch/s390/numa/mode_emu.c b/arch/s390/numa/mode_emu.c index 9d4e1e15a6f0..646cd94cff2f 100644 --- a/arch/s390/numa/mode_emu.c +++ b/arch/s390/numa/mode_emu.c @@ -51,6 +51,11 @@ enum {TOPTREE_ID_PHYS, TOPTREE_ID_NUMA}; 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 @@ static void print_node_to_core_map(void) * 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) { -- cgit v1.2.3-59-g8ed1b