1 files changed, 6 insertions, 16 deletions

diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index f2f05c5277f4..e88ebe5339fc 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -99,13 +99,6 @@ __vector128 __initdata boot_cpu_vector_save_area[__NUM_VXRS];
 static unsigned int smp_max_threads __initdata = -1U;
 cpumask_t cpu_setup_mask;
 
-static int __init early_nosmt(char *s)
-{
-	smp_max_threads = 1;
-	return 0;
-}
-early_param("nosmt", early_nosmt);
-
 static int __init early_smt(char *s)
 {
 	get_option(&s, &smp_max_threads);
@@ -182,13 +175,10 @@ static struct pcpu *pcpu_find_address(const struct cpumask *mask, u16 address)
 
 static void pcpu_ec_call(struct pcpu *pcpu, int ec_bit)
 {
-	int order;
-
 	if (test_and_set_bit(ec_bit, &pcpu->ec_mask))
 		return;
-	order = pcpu_running(pcpu) ? SIGP_EXTERNAL_CALL : SIGP_EMERGENCY_SIGNAL;
 	pcpu->ec_clk = get_tod_clock_fast();
-	pcpu_sigp_retry(pcpu, order, 0);
+	pcpu_sigp_retry(pcpu, SIGP_EXTERNAL_CALL, 0);
 }
 
 static int pcpu_alloc_lowcore(struct pcpu *pcpu, int cpu)
@@ -265,13 +255,12 @@ static void pcpu_prepare_secondary(struct pcpu *pcpu, int cpu)
 	lc->percpu_offset = __per_cpu_offset[cpu];
 	lc->kernel_asce = get_lowcore()->kernel_asce;
 	lc->user_asce = s390_invalid_asce;
-	lc->machine_flags = get_lowcore()->machine_flags;
 	lc->user_timer = lc->system_timer =
 		lc->steal_timer = lc->avg_steal_timer = 0;
 	abs_lc = get_abs_lowcore();
 	memcpy(lc->cregs_save_area, abs_lc->cregs_save_area, sizeof(lc->cregs_save_area));
 	put_abs_lowcore(abs_lc);
-	lc->cregs_save_area[1] = lc->kernel_asce;
+	lc->cregs_save_area[1] = lc->user_asce;
 	lc->cregs_save_area[7] = lc->user_asce;
 	save_access_regs((unsigned int *) lc->access_regs_save_area);
 	arch_spin_lock_setup(cpu);
@@ -441,16 +430,16 @@ void notrace smp_emergency_stop(void)
 	cpumask_copy(&cpumask, cpu_online_mask);
 	cpumask_clear_cpu(smp_processor_id(), &cpumask);
 
-	end = get_tod_clock() + (1000000UL << 12);
+	end = get_tod_clock_monotonic() + (1000000UL << 12);
 	for_each_cpu(cpu, &cpumask) {
 		struct pcpu *pcpu = per_cpu_ptr(&pcpu_devices, cpu);
 		set_bit(ec_stop_cpu, &pcpu->ec_mask);
 		while (__pcpu_sigp(pcpu->address, SIGP_EMERGENCY_SIGNAL,
 				   0, NULL) == SIGP_CC_BUSY &&
-		       get_tod_clock() < end)
+		       get_tod_clock_monotonic() < end)
 			cpu_relax();
 	}
-	while (get_tod_clock() < end) {
+	while (get_tod_clock_monotonic() < end) {
 		for_each_cpu(cpu, &cpumask)
 			if (pcpu_stopped(per_cpu_ptr(&pcpu_devices, cpu)))
 				cpumask_clear_cpu(cpu, &cpumask);
@@ -809,6 +798,7 @@ void __init smp_detect_cpus(void)
 	mtid = boot_core_type ? sclp.mtid : sclp.mtid_cp;
 	mtid = (mtid < smp_max_threads) ? mtid : smp_max_threads - 1;
 	pcpu_set_smt(mtid);
+	cpu_smt_set_num_threads(smp_cpu_mtid + 1, smp_cpu_mtid + 1);
 
 	/* Print number of CPUs */
 	c_cpus = s_cpus = 0;