From: Greg KH on
2.6.33-stable review patch. If anyone has any objections, please let us know.


From: Vaidyanathan Srinivasan <svaidy(a)>

commit a8e6da093ea8642b1320fb5d64134366f2a8d0ac upstream.

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(a)>
Cc: Gautham R Shenoy <ego(a)>
Signed-off-by: Benjamin Herrenschmidt <benh(a)>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)>

arch/powerpc/platforms/pseries/hotplug-cpu.c | 11 -----------
1 file changed, 11 deletions(-)

--- 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) {
- 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;

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