From: Tom Zanussi <tom.zanussi@linux.intel.com>
To: rostedt@goodmis.org
Cc: tglx@linutronix.de, mhiramat@kernel.org, namhyung@kernel.org,
vedang.patel@intel.com, bigeasy@linutronix.de,
joel.opensrc@gmail.com, joelaf@google.com,
mathieu.desnoyers@efficios.com, baohong.liu@intel.com,
rajvi.jingar@intel.com, linux-kernel@vger.kernel.org,
linux-rt-users@vger.kernel.org,
Tom Zanussi <tom.zanussi@linux.intel.com>
Subject: [PATCH v3 30/33] tracing: Make tracing_set_clock() non-static
Date: Fri, 22 Sep 2017 15:00:10 -0500 [thread overview]
Message-ID: <8b288a2d1747d54402ca030fcb903a532ab7e698.1506105131.git.tom.zanussi@linux.intel.com> (raw)
In-Reply-To: <cover.1506105131.git.tom.zanussi@linux.intel.com>
In-Reply-To: <cover.1506105131.git.tom.zanussi@linux.intel.com>
Allow tracing code outside of trace.c to access tracing_set_clock().
Some applications may require a particular clock in order to function
properly, such as latency calculations.
Also, add an accessor returning the current clock string.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
---
kernel/trace/trace.c | 2 +-
kernel/trace/trace.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 5eb313a..a66a30a 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -6213,7 +6213,7 @@ static int tracing_clock_show(struct seq_file *m, void *v)
return 0;
}
-static int tracing_set_clock(struct trace_array *tr, const char *clockstr)
+int tracing_set_clock(struct trace_array *tr, const char *clockstr)
{
int i;
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 7b78762..1f3443a 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -288,6 +288,7 @@ enum {
extern void trace_array_put(struct trace_array *tr);
extern int tracing_set_time_stamp_abs(struct trace_array *tr, bool abs);
+extern int tracing_set_clock(struct trace_array *tr, const char *clockstr);
extern bool trace_clock_in_ns(struct trace_array *tr);
--
1.9.3
next prev parent reply other threads:[~2017-09-22 20:05 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-22 19:59 [PATCH v3 00/33] tracing: Inter-event (e.g. latency) support Tom Zanussi
2017-09-22 19:59 ` [PATCH v3 01/33] tracing: Add support to detect and avoid duplicates Tom Zanussi
2017-09-22 19:59 ` [PATCH v3 02/33] tracing: Remove code which merges duplicates Tom Zanussi
2017-09-22 19:59 ` [PATCH v3 03/33] ring-buffer: Add interface for setting absolute time stamps Tom Zanussi
2017-10-04 17:14 ` Steven Rostedt
2017-10-05 11:34 ` Tom Zanussi
2017-09-22 19:59 ` [PATCH v3 04/33] ring-buffer: Redefine the unimplemented RINGBUF_TIME_TIME_STAMP Tom Zanussi
2017-09-22 19:59 ` [PATCH v3 05/33] tracing: Give event triggers access to ring_buffer_event Tom Zanussi
2017-09-22 19:59 ` [PATCH v3 06/33] tracing: Add ring buffer event param to hist field functions Tom Zanussi
2017-09-22 19:59 ` [PATCH v3 07/33] tracing: Break out hist trigger assignment parsing Tom Zanussi
2017-09-22 19:59 ` [PATCH v3 08/33] tracing: Add hist trigger timestamp support Tom Zanussi
2017-09-22 19:59 ` [PATCH v3 09/33] tracing: Add per-element variable support to tracing_map Tom Zanussi
2017-09-22 19:59 ` [PATCH v3 10/33] tracing: Add hist_data member to hist_field Tom Zanussi
2017-09-22 19:59 ` [PATCH v3 11/33] tracing: Add usecs modifier for hist trigger timestamps Tom Zanussi
2017-09-22 19:59 ` [PATCH v3 12/33] tracing: Add variable support to hist triggers Tom Zanussi
2017-10-09 3:27 ` Namhyung Kim
2017-10-11 13:33 ` Tom Zanussi
2017-10-11 23:23 ` Namhyung Kim
2017-10-12 15:51 ` Tom Zanussi
2017-09-22 19:59 ` [PATCH v3 13/33] tracing: Account for variables in named trigger compatibility Tom Zanussi
2017-09-22 19:59 ` [PATCH v3 14/33] tracing: Move get_hist_field_flags() Tom Zanussi
2017-09-22 19:59 ` [PATCH v3 15/33] tracing: Add simple expression support to hist triggers Tom Zanussi
2017-10-09 12:54 ` Namhyung Kim
2017-10-11 14:08 ` Tom Zanussi
2017-09-22 19:59 ` [PATCH v3 16/33] tracing: Generalize per-element hist trigger data Tom Zanussi
2017-10-04 17:34 ` Steven Rostedt
2017-10-04 19:22 ` Tom Zanussi
2017-09-22 19:59 ` [PATCH v3 17/33] tracing: Pass tracing_map_elt to hist_field accessor functions Tom Zanussi
2017-09-22 19:59 ` [PATCH v3 18/33] tracing: Add hist_field 'type' field Tom Zanussi
2017-09-22 19:59 ` [PATCH v3 19/33] tracing: Add variable reference handling to hist triggers Tom Zanussi
2017-10-09 12:46 ` Namhyung Kim
2017-10-11 14:07 ` Tom Zanussi
2017-09-22 20:00 ` [PATCH v3 20/33] tracing: Add hist trigger action hook Tom Zanussi
2017-09-22 20:00 ` [PATCH v3 21/33] tracing: Add support for 'synthetic' events Tom Zanussi
2017-10-04 18:08 ` Steven Rostedt
2017-10-04 19:50 ` Tom Zanussi
2017-10-12 0:53 ` Namhyung Kim
2017-09-22 20:00 ` [PATCH v3 22/33] tracing: Add support for 'field variables' Tom Zanussi
2017-10-12 2:52 ` Namhyung Kim
2017-10-12 21:35 ` Tom Zanussi
2017-09-22 20:00 ` [PATCH v3 23/33] tracing: Add 'onmatch' hist trigger action support Tom Zanussi
2017-09-22 20:00 ` [PATCH v3 24/33] tracing: Add 'onmax' " Tom Zanussi
2017-09-22 20:00 ` [PATCH v3 25/33] tracing: Allow whitespace to surround hist trigger filter Tom Zanussi
2017-10-04 18:11 ` Steven Rostedt
2017-10-04 19:05 ` Tom Zanussi
2017-10-04 19:28 ` Steven Rostedt
2017-10-18 3:00 ` Namhyung Kim
2017-10-18 14:11 ` Tom Zanussi
2017-09-22 20:00 ` [PATCH v3 26/33] tracing: Add cpu field for hist triggers Tom Zanussi
2017-10-04 18:12 ` Steven Rostedt
2017-10-04 19:21 ` Tom Zanussi
2017-10-04 19:30 ` Steven Rostedt
2017-09-22 20:00 ` [PATCH v3 27/33] tracing: Add hist trigger support for variable reference aliases Tom Zanussi
2017-09-22 20:00 ` [PATCH v3 28/33] tracing: Add 'last error' error facility for hist triggers Tom Zanussi
2017-09-22 20:00 ` [PATCH v3 29/33] tracing: Add inter-event hist trigger Documentation Tom Zanussi
2017-10-18 1:36 ` Steven Rostedt
2017-10-18 14:07 ` Tom Zanussi
2017-09-22 20:00 ` Tom Zanussi [this message]
2017-09-22 20:00 ` [PATCH v3 31/33] tracing: Add a clock attribute for hist triggers Tom Zanussi
2017-09-22 20:00 ` [PATCH v3 32/33] tracing: Increase trace_recursive_lock() limit for synthetic events Tom Zanussi
2017-09-22 20:00 ` [PATCH v3 33/33] tracing: Add inter-event blurb to HIST_TRIGGERS config option Tom Zanussi
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