[S390] Remove smp_cpu_not_running.

[linux-beck.git] / arch / s390 / kernel / smp.c

diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 9261495ca2c35dd40a9cc087a0811a1715421c3d..56c16876b9190b067e71ddde1865566e6d17261f 100644 (file)
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -71,6 +71,23 @@ static DEFINE_PER_CPU(struct cpu, cpu_devices);
 
 static void smp_ext_bitcall(int, ec_bit_sig);
 
+static int cpu_stopped(int cpu)
+{
+       __u32 status;
+
+       switch (signal_processor_ps(&status, 0, cpu, sigp_sense)) {
+       case sigp_order_code_accepted:
+       case sigp_status_stored:
+               /* Check for stopped and check stop state */
+               if (status & 0x50)
+                       return 1;
+               break;
+       default:
+               break;
+       }
+       return 0;
+}
+
 void smp_send_stop(void)
 {
        int cpu, rc;
@@ -87,7 +104,7 @@ void smp_send_stop(void)
                        rc = signal_processor(cpu, sigp_stop);
                } while (rc == sigp_busy);
 
-               while (!smp_cpu_not_running(cpu))
+               while (!cpu_stopped(cpu))
                        cpu_relax();
        }
 }
@@ -270,19 +287,6 @@ static inline void smp_get_save_area(unsigned int cpu, unsigned int phy_cpu) { }
 
 #endif /* CONFIG_ZFCPDUMP */
 
-static int cpu_stopped(int cpu)
-{
-       __u32 status;
-
-       /* Check for stopped state */
-       if (signal_processor_ps(&status, 0, cpu, sigp_sense) ==
-           sigp_status_stored) {
-               if (status & 0x40)
-                       return 1;
-       }
-       return 0;
-}
-
 static int cpu_known(int cpu_id)
 {
        int cpu;
@@ -636,7 +640,7 @@ int __cpu_disable(void)
 void __cpu_die(unsigned int cpu)
 {
        /* Wait until target cpu is down */
-       while (!smp_cpu_not_running(cpu))
+       while (!cpu_stopped(cpu))
                cpu_relax();
        smp_free_lowcore(cpu);
        pr_info("Processor %d stopped\n", cpu);