ftrace: cleanups

factor out code and clean it up.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 6 insertions, 12 deletions

diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c
index 3d10ff01f80..688df965f3f 100644
--- a/kernel/trace/trace_sched_wakeup.c
+++ b/kernel/trace/trace_sched_wakeup.c
@@ -107,24 +107,18 @@ wakeup_sched_switch(struct task_struct *prev, struct task_struct *next)
         update_max_tr(tr, wakeup_task, wakeup_cpu);
 
         if (tracing_thresh) {
-                printk(KERN_INFO "(%16s-%-5d|#%d): %lu us wakeup latency "
-                       "violates %lu us threshold.\n"
-                       " => started at timestamp %lu: ",
+                printk(KERN_INFO "(%16s-%-5d|#%d):"
+                        " %lu us wakeup latency violates %lu us threshold.\n",
                                 wakeup_task->comm, wakeup_task->pid,
                                 raw_smp_processor_id(),
-                                latency, nsecs_to_usecs(tracing_thresh), t0);
+                                latency, nsecs_to_usecs(tracing_thresh));
         } else {
-                printk(KERN_INFO "(%16s-%-5d|#%d): new %lu us maximum "
-                       "wakeup latency.\n => started at timestamp %lu: ",
+                printk(KERN_INFO "(%16s-%-5d|#%d):"
+                        " new %lu us maximum wakeup latency.\n",
                                 wakeup_task->comm, wakeup_task->pid,
-                                cpu, latency, t0);
+                                cpu, latency);
         }
 
-        printk(KERN_CONT "   ended at timestamp %lu: ", t1);
-        dump_stack();
-        t1 = nsecs_to_usecs(now(cpu));
-        printk(KERN_CONT "   dump-end timestamp %lu\n\n", t1);
-
 out_unlock:
         __wakeup_reset(tr);
         spin_unlock_irqrestore(&wakeup_lock, flags);