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From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Tom Zanussi <tom.zanussi@linux.intel.com>
Subject: [for-next][PATCH 33/46] tracing: Make tracing_set_clock() non-static
Date: Tue, 20 Mar 2018 22:21:25 -0400	[thread overview]
Message-ID: <20180321022129.551521939@goodmis.org> (raw)
In-Reply-To: 20180321022052.030055576@goodmis.org

[-- Attachment #1: 0033-tracing-Make-tracing_set_clock-non-static.patch --]
[-- Type: text/plain, Size: 1543 bytes --]

From: Tom Zanussi <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.

Link: http://lkml.kernel.org/r/6d1c53e9ee2163f54e1849f5376573f54f0e6009.1516069914.git.tom.zanussi@linux.intel.com

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 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 68f8702af9fb..551a7cd0d705 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -6214,7 +6214,7 @@ 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 99b7ee7ed127..9de3e2a2f042 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -289,6 +289,7 @@ extern int trace_array_get(struct trace_array *tr);
 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);
 
-- 
2.15.1

  parent reply	other threads:[~2018-03-21  2:25 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-21  2:20 [for-next][PATCH 00/46] tracing: Updates for v4.17 Steven Rostedt
2018-03-21  2:20 ` [for-next][PATCH 01/46] tracing: Move hist trigger Documentation to histogram.txt Steven Rostedt
2018-03-21  2:20 ` [for-next][PATCH 02/46] tracing: Add Documentation for log2 modifier Steven Rostedt
2018-03-21  2:20 ` [for-next][PATCH 03/46] tracing: Add support to detect and avoid duplicates Steven Rostedt
2018-03-21  2:20 ` [for-next][PATCH 04/46] tracing: Remove code which merges duplicates Steven Rostedt
2018-03-21  2:20 ` [for-next][PATCH 05/46] ring-buffer: Add interface for setting absolute time stamps Steven Rostedt
2018-03-21  2:20 ` [for-next][PATCH 06/46] ring-buffer: Redefine the unimplemented RINGBUF_TYPE_TIME_STAMP Steven Rostedt
2018-03-21  2:20 ` [for-next][PATCH 07/46] tracing: Add timestamp_mode trace file Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 08/46] tracing: Give event triggers access to ring_buffer_event Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 09/46] tracing: Add ring buffer event param to hist field functions Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 10/46] tracing: Break out hist trigger assignment parsing Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 11/46] tracing: Add hist trigger timestamp support Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 12/46] tracing: Add per-element variable support to tracing_map Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 13/46] tracing: Add hist_data member to hist_field Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 14/46] tracing: Add usecs modifier for hist trigger timestamps Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 15/46] tracing: Add variable support to hist triggers Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 16/46] tracing: Account for variables in named trigger compatibility Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 17/46] tracing: Move get_hist_field_flags() Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 18/46] tracing: Add simple expression support to hist triggers Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 19/46] tracing: Generalize per-element hist trigger data Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 20/46] tracing: Pass tracing_map_elt to hist_field accessor functions Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 21/46] tracing: Add hist_field type field Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 22/46] tracing: Add variable reference handling to hist triggers Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 23/46] tracing: Add hist trigger action hook Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 24/46] tracing: Add support for synthetic events Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 25/46] tracing: Add support for field variables Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 26/46] tracing: Add onmatch hist trigger action support Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 27/46] tracing: Add onmax " Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 28/46] tracing: Allow whitespace to surround hist trigger filter Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 29/46] tracing: Add cpu field for hist triggers Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 30/46] tracing: Add hist trigger support for variable reference aliases Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 31/46] tracing: Add last error error facility for hist triggers Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 32/46] tracing: Add inter-event hist trigger Documentation Steven Rostedt
2018-03-21  2:21 ` Steven Rostedt [this message]
2018-03-21  2:21 ` [for-next][PATCH 34/46] tracing: Add a clock attribute for hist triggers Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 35/46] ring-buffer: Add nesting for adding events within events Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 36/46] tracing: Use the ring-buffer nesting to allow synthetic events to be traced Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 37/46] tracing: Add inter-event blurb to HIST_TRIGGERS config option Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 38/46] selftests: ftrace: Add inter-event hist triggers testcases Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 39/46] tracing: Remove BUG_ON() from append_filter_string() Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 40/46] tracing: Use trace_seq instead of open code string appending Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 41/46] tracing: Remove filter allocator helper Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 42/46] tracing: Only add filter list when needed Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 43/46] tracing: Embed replace_filter_string() helper function Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 44/46] tracing: Combine enum and arrays into single macro in filter code Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 45/46] tracing: Clean up and document pred_funcs_##type creation and use Steven Rostedt
2018-03-21  2:21 ` [for-next][PATCH 46/46] tracing: Rewrite filter logic to be simpler and faster Steven Rostedt

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