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authorSteven Rostedt <rostedt@goodmis.org>2008-05-22 00:22:20 -0400
committerThomas Gleixner <tglx@linutronix.de>2008-05-26 22:51:27 +0200
commitda89a7a2536c46e76a1a4351a70a8b8417e5fed1 (patch)
tree97443d1159d8965c9c349ddc0d63b4468ce14c15
parent7e18d8e701b6798a5df11e0a16881a60ab1018b6 (diff)
ftrace: remove printks from irqsoff trace
Printing out new max latencies was fine for the old RT tracer. But for mainline it is a bit messy. We also need to test if the run queue is locked before we can do the print. This means that we may not be printing out latencies if the run queue is locked on another CPU. This produces inconsistencies in the output. This patch simply removes the print altogether. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Cc: pq@iki.fi Cc: proski@gnu.org Cc: sandmann@redhat.com Cc: a.p.zijlstra@chello.nl Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r--kernel/trace/trace_irqsoff.c16
1 files changed, 0 insertions, 16 deletions
diff --git a/kernel/trace/trace_irqsoff.c b/kernel/trace/trace_irqsoff.c
index 761f3ec66c5..421d6fe3650 100644
--- a/kernel/trace/trace_irqsoff.c
+++ b/kernel/trace/trace_irqsoff.c
@@ -165,22 +165,6 @@ check_critical_timing(struct trace_array *tr,
update_max_tr_single(tr, current, cpu);
- if (!runqueue_is_locked()) {
- if (tracing_thresh) {
- printk(KERN_INFO "(%16s-%-5d|#%d): %lu us critical"
- " section violates %lu us threshold.\n",
- current->comm, current->pid,
- raw_smp_processor_id(),
- latency, nsecs_to_usecs(tracing_thresh));
- } else {
- printk(KERN_INFO "(%16s-%-5d|#%d): new %lu us"
- " maximum-latency critical section.\n",
- current->comm, current->pid,
- raw_smp_processor_id(),
- latency);
- }
- }
-
max_sequence++;
out_unlock: