linux/kernel/trace
Steven Rostedt 81698831bc tracing: Enable comm recording if trace_printk() is used
If comm recording is not enabled when trace_printk() is used then
you just get this type of output:

[ adding trace_printk("hello! %d", irq); in do_IRQ ]

           <...>-2843  [001] d.h.    80.812300: do_IRQ: hello! 14
           <...>-2734  [002] d.h2    80.824664: do_IRQ: hello! 14
           <...>-2713  [003] d.h.    80.829971: do_IRQ: hello! 14
           <...>-2814  [000] d.h.    80.833026: do_IRQ: hello! 14

By enabling the comm recorder when trace_printk is enabled:

       hackbench-6715  [001] d.h.   193.233776: do_IRQ: hello! 21
            sshd-2659  [001] d.h.   193.665862: do_IRQ: hello! 21
          <idle>-0     [001] d.h1   193.665996: do_IRQ: hello! 21

Suggested-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-10-31 16:45:29 -04:00
..
blktrace.c simple_open: automatically convert to simple_open() 2012-04-05 15:25:50 -07:00
ftrace.c tracing: Allow tracers to start at core initcall 2012-10-31 16:45:24 -04:00
Kconfig trace: Stop compiling in trace_clock unconditionally 2012-09-13 22:52:08 -04:00
Makefile trace: Stop compiling in trace_clock unconditionally 2012-09-13 22:52:08 -04:00
power-traces.c
ring_buffer_benchmark.c
ring_buffer.c ring-buffer: Add a 'dropped events' counter 2012-10-31 16:45:27 -04:00
rpm-traces.c
trace_branch.c tracing: Allow tracers to start at core initcall 2012-10-31 16:45:24 -04:00
trace_clock.c
trace_entries.h Merge branch 'tip/perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace into perf/urgent 2012-03-24 08:19:09 +01:00
trace_event_perf.c perf/core improvements and fixes: 2012-08-21 11:27:00 +02:00
trace_events_filter_test.h
trace_events_filter.c tracing: Replace strict_strto* with kstrto* 2012-10-31 16:45:23 -04:00
trace_events.c tracing: Enable comm recording if trace_printk() is used 2012-10-31 16:45:29 -04:00
trace_export.c tracing: Do not enable function event with enable 2012-05-10 15:55:43 -04:00
trace_functions_graph.c tracing: Allow tracers to start at core initcall 2012-10-31 16:45:24 -04:00
trace_functions.c tracing: Allow tracers to start at core initcall 2012-10-31 16:45:24 -04:00
trace_irqsoff.c tracing: Change tracer's integer flags to bool 2012-10-31 16:45:25 -04:00
trace_kdb.c
trace_kprobe.c tracing: Replace strict_strto* with kstrto* 2012-10-31 16:45:23 -04:00
trace_mmiotrace.c
trace_nop.c
trace_output.c tracing: Register the ftrace internal events during early boot 2012-06-14 15:22:14 -04:00
trace_output.h
trace_printk.c tracing: Add percpu buffers for trace_printk() 2012-04-23 21:15:55 -04:00
trace_probe.c tracing: Replace strict_strto* with kstrto* 2012-10-31 16:45:23 -04:00
trace_probe.h tracing: Provide trace events interface for uprobes 2012-05-07 14:30:17 +02:00
trace_sched_switch.c
trace_sched_wakeup.c tracing: Change tracer's integer flags to bool 2012-10-31 16:45:25 -04:00
trace_selftest_dynamic.c
trace_selftest.c tracing: Fix wakeup_rt self test on virtual machines 2012-08-07 09:40:51 -04:00
trace_stack.c ftrace: Add default recursion protection for function tracing 2012-07-31 10:29:52 -04:00
trace_stat.c
trace_stat.h
trace_syscalls.c trace: Move trace event enable from fs_initcall to core_initcall 2012-09-24 14:13:02 -04:00
trace_uprobe.c tracing: Replace strict_strto* with kstrto* 2012-10-31 16:45:23 -04:00
trace.c tracing: Enable comm recording if trace_printk() is used 2012-10-31 16:45:29 -04:00
trace.h tracing: Enable comm recording if trace_printk() is used 2012-10-31 16:45:29 -04:00