powerpc: Reduce printk from pseries_mach_cpu_die()

Remove debug printks in pseries_mach_cpu_die().  These are
noisy at runtime.  Traceevents can be added to instrument this
section of code.

The following KERN_INFO printks are removed:

cpu 62 (hwid 62) returned from cede.
Decrementer value = b2802fff Timebase value = 2fa8f95035f4a
cpu 62 (hwid 62) got prodded to go online
cpu 58 (hwid 58) ceding for offline with hint 2

Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index fefb7f84800bdf582f31565a52f4457a05a095ac..a8e1d5d17a28270c0caecff35db904b138c2d7f8 100644 (file)
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -122,21 +122,10 @@ static void pseries_mach_cpu_die(void)
                if (!get_lppaca()->shared_proc)
                        get_lppaca()->donate_dedicated_cpu = 1;
 
-               printk(KERN_INFO
-                       "cpu %u (hwid %u) ceding for offline with hint %d\n",
-                       cpu, hwcpu, cede_latency_hint);
                while (get_preferred_offline_state(cpu) == CPU_STATE_INACTIVE) {
                        extended_cede_processor(cede_latency_hint);
-                       printk(KERN_INFO "cpu %u (hwid %u) returned from cede.\n",
-                               cpu, hwcpu);
-                       printk(KERN_INFO
-                       "Decrementer value = %x Timebase value = %llx\n",
-                       get_dec(), get_tb());
                }
 
-               printk(KERN_INFO "cpu %u (hwid %u) got prodded to go online\n",
-                       cpu, hwcpu);
-
                if (!get_lppaca()->shared_proc)
                        get_lppaca()->donate_dedicated_cpu = 0;
                get_lppaca()->idle = 0;