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authorSteven Rostedt <rostedt@goodmis.org>2008-05-22 00:22:20 -0400
committerThomas Gleixner <tglx@linutronix.de>2008-05-26 16:51:27 -0400
commitda89a7a2536c46e76a1a4351a70a8b8417e5fed1 (patch)
tree97443d1159d8965c9c349ddc0d63b4468ce14c15 /kernel
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>
Diffstat (limited to 'kernel')
-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 761f3ec66c50..421d6fe3650e 100644
--- a/kernel/trace/trace_irqsoff.c
+++ b/kernel/trace/trace_irqsoff.c
@@ -165,22 +165,6 @@ check_critical_timing(struct trace_array *tr,
165 165
166 update_max_tr_single(tr, current, cpu); 166 update_max_tr_single(tr, current, cpu);
167 167
168 if (!runqueue_is_locked()) {
169 if (tracing_thresh) {
170 printk(KERN_INFO "(%16s-%-5d|#%d): %lu us critical"
171 " section violates %lu us threshold.\n",
172 current->comm, current->pid,
173 raw_smp_processor_id(),
174 latency, nsecs_to_usecs(tracing_thresh));
175 } else {
176 printk(KERN_INFO "(%16s-%-5d|#%d): new %lu us"
177 " maximum-latency critical section.\n",
178 current->comm, current->pid,
179 raw_smp_processor_id(),
180 latency);
181 }
182 }
183
184 max_sequence++; 168 max_sequence++;
185 169
186out_unlock: 170out_unlock: