linux-toradex.git/tools/lib/traceevent/plugin_jbd2.c, branch v5.3-rc6

tools lib traceevent: Rename input arguments of libtraceevent APIs from pevent to tep

2019-04-01T18:18:09+00:00

Input arguments of libtraceevent APIs are renamed from "struct
tep_handle *pevent" to "struct tep_handle *tep". This makes the API
consistent with the chosen naming convention: tep (trace event parser),
instead of the old pevent.

Signed-off-by: Tzvetomir Stoyanov 
Cc: Andrew Morton 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Link: http://lore.kernel.org/linux-trace-devel/20190401132111.13727-2-tstoyanov@vmware.com
Link: http://lkml.kernel.org/r/20190401164344.465573837@goodmis.org
Signed-off-by: Steven Rostedt (VMware) 
Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent, perf tools: Split trace-seq related APIs in a separate header file

2018-08-30T18:52:20+00:00

In order to make libtraceevent into a proper library, all its APIs
should be defined in corresponding header files.  This patch splits
trace-seq related APIs in a separate header file: trace-seq.h

Signed-off-by: Tzvetomir Stoyanov (VMware) 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Link: http://lkml.kernel.org/r/20180828185038.2dcb2743@gandalf.local.home
Signed-off-by: Steven Rostedt 
Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Rename pevent_register / unregister APIs

2018-08-13T18:27:35+00:00

In order to make libtraceevent into a proper library, variables, data
structures and functions require a unique prefix to prevent name space
conflicts. That prefix will be "tep_" and not "pevent_". This changes
APIs: pevent_register_print_function, pevent_unregister_print_function,
pevent_register_event_handler, pevent_unregister_event_handler,
pevent_register_function, pevent_register_trace_clock

Signed-off-by: Steven Rostedt 
Cc: Andrew Morton 
Cc: Peter Zijlstra 
Cc: Yordan Karadzhov (VMware) 
Cc: linux-trace-devel@vger.kernel.org
Link: http://lkml.kernel.org/r/20180808180702.524813185@goodmis.org
Signed-off-by: Tzvetomir Stoyanov (VMware) 
Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Rename pevent_function* APIs

2018-08-13T18:24:26+00:00

In order to make libtraceevent into a proper library, variables, data
structures and functions require a unique prefix to prevent name space
conflicts. That prefix will be "tep_" and not "pevent_". This changes
APIs: pevent_function_handler, pevent_func_handler,
pevent_func_arg_type, PEVENT_FUNC_ARG_VOID, PEVENT_FUNC_ARG_INT,
PEVENT_FUNC_ARG_LONG, PEVENT_FUNC_ARG_STRING, PEVENT_FUNC_ARG_PTRS,
PEVENT_FUNC_ARG_MAX_TYPES

Signed-off-by: Tzvetomir Stoyanov (VMware) 
Cc: Andrew Morton 
Cc: Peter Zijlstra 
Cc: Yordan Karadzhov (VMware) 
Cc: linux-trace-devel@vger.kernel.org
Link: http://lkml.kernel.org/r/20180808180701.935881193@goodmis.org
Signed-off-by: Steven Rostedt 
Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent, perf tools: Rename pevent plugin related APIs

2018-08-13T18:21:39+00:00

In order to make libtraceevent into a proper library, variables, data
structures and functions require a unique prefix to prevent name space
conflicts. That prefix will be "tep_" and not "pevent_". This changes
the pevent plugin related API.

Signed-off-by: Tzvetomir Stoyanov (VMware) 
Cc: Andrew Morton 
Cc: Peter Zijlstra 
Cc: Yordan Karadzhov (VMware) 
Cc: linux-trace-devel@vger.kernel.org
Link: http://lkml.kernel.org/r/20180808180700.005287044@goodmis.org
Signed-off-by: Steven Rostedt 
Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent, perf tools: Rename struct pevent to struct tep_handle

2018-08-10T18:29:35+00:00

In order to make libtraceevent into a proper library, variables, data
structures and functions require a unique prefix to prevent name space
conflicts. That prefix will be "tep_" and not "pevent_". This changes
the struct pevent to struct tep_handle.

Signed-off-by: Tzvetomir Stoyanov (VMware) 
Cc: Andrew Morton 
Cc: Peter Zijlstra 
Cc: Yordan Karadzhov (VMware) 
Cc: linux-trace-devel@vger.kernel.org
Link: http://lkml.kernel.org/r/20180808180659.706175783@goodmis.org
Signed-off-by: Steven Rostedt 
Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Clean up format of args in jbd2 plugin

2014-06-19T16:18:37+00:00

While synchronizing what's in trace-cmd vs what's in perf, I came
across a change that was made when entering the jbd2 plugin into
the tools/lib/traceevent directory. For example, one of the function
prototypes went from:

unsigned long long process_jbd2_dev_to_name(struct trace_seq *s,
					    unsigned long long *args)

to:

static unsigned long long
process_jbd2_dev_to_name(struct trace_seq *s,
			 unsigned long long *args)

I can understand the line break after the long long, but there's no
reason to keep args on a separate line.

Signed-off-by: Steven Rostedt 
Link: http://lkml.kernel.org/r/20140612204144.018410d4@gandalf.local.home
Signed-off-by: Jiri Olsa

tools lib traceevent: Unregister handler when jbd2 plugin is is unloaded

2014-01-16T19:26:25+00:00

The function handlers should be unregistered when the plugin unloaded
otherwise they'll try to access invalid memory.

Signed-off-by: Namhyung Kim 
Reviewed-by: Jiri Olsa 
Acked-by: Steven Rostedt 
Cc: Frederic Weisbecker 
Cc: Ingo Molnar 
Cc: Jiri Olsa 
Cc: Namhyung Kim 
Cc: Peter Zijlstra 
Cc: Steven Rostedt 
Link: http://lkml.kernel.org/r/1389839478-5887-11-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Use static functions in jbd2 plugin

2013-12-04T18:36:24+00:00

There's no need for following functions to be global:

  process_jbd2_dev_to_name
  process_jiffies_to_msecs

Make them static.

Signed-off-by: Jiri Olsa 
Cc: Corey Ashford 
Cc: David Ahern 
Cc: Frederic Weisbecker 
Cc: Ingo Molnar 
Cc: Namhyung Kim 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Steven Rostedt 
Link: http://lkml.kernel.org/r/1386076182-14484-24-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Add jbd2 plugin

2013-12-04T18:24:47+00:00

Backporting jbd2 plugin.

Backported from Steven Rostedt's trace-cmd repo (HEAD 0f2c2fb):
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git

This plugin adds field resolving functions for following tracepoint
events:

  jbd2:jbd2_checkpoint_stats
  jbd2:jbd2_run_stats

The diff of 'perf script' output generated by old and new code:
(data was generated by 'perf record -e 'jbd2:jbd2_run_stats,jbd2:jbd2_checkpoint_stats' -a')

  --- script.jbd2.old
  +++ script.jbd2.new
  -     jbd2/dm-3-8   576 [000]  2983.748423: jbd2:jbd2_checkpoint_stats: [FAILED TO PARSE] dev=265289731 tid=0x3f2bbb chp_time=0x0 forced_to_close=0 written=0 dropped=2
  +     jbd2/dm-3-8   576 [000]  2983.748423: jbd2:jbd2_checkpoint_stats: dev 253,3 tid 4139963 chp_time 0 forced_to_close 0 written 0 dropped 2
  -     jbd2/dm-3-8   576 [000]  2983.852789: jbd2:jbd2_run_stats: [FAILED TO PARSE] dev=265289731 tid=0x3f2bc0 wait=0x0 request_delay=0x0 running=0x138d locked=0x0 flushing=0x0 logging=0x68 handle_count=2995 blocks=17 blocks_logged=18
  +     jbd2/dm-3-8   576 [000]  2983.852789: jbd2:jbd2_run_stats: dev 253,3 tid 4139968 wait 0 request_delay 0 running 5005 locked 0 flushing 0 logging 104 handle_count 2995 blocks 17 blocks_logged 18

This plugin also adds jbd2_dev_to_name function, which was removed from
jdb2 tracepoints recently. Keeping it in for backward compatibility
reasons.

Signed-off-by: Jiri Olsa 
Cc: Corey Ashford 
Cc: David Ahern 
Cc: Frederic Weisbecker 
Cc: Ingo Molnar 
Cc: Namhyung Kim 
Cc: Paul Mackerras 
Cc: Peter Zijlstra 
Cc: Steven Rostedt 
Link: http://lkml.kernel.org/r/1386076182-14484-13-git-send-email-jolsa@redhat.com
Signed-off-by: Steven Rostedt 
Signed-off-by: Arnaldo Carvalho de Melo