Documentation/trace/tracepoints.txt: add links to TRACE_EVENT documentation

Existing tracepoint documentation doesn't mention the popular
TRACE_EVENT macro.  Since an excellent series of articles on proper
usage already exists, respective links are added to the existing
documentation.

Signed-off-by: Stefan Raspl <[email protected]>
Cc: Rob Landley <[email protected]>
Cc: Jiri Kosina <[email protected]>
Acked-by: Mathieu Desnoyers <[email protected]>
Cc: Zoltan Kiss <[email protected]>
Cc: Steven Rostedt <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/Documentation/trace/tracepoints.txt b/Documentation/trace/tracepoints.txt
index ac4170dd0f24d9adb67c9b857739e06926d39d0b..6b018b53177aa7ee499b5adb0e95d52e2e92d9ee 100644 (file)
--- a/Documentation/trace/tracepoints.txt
+++ b/Documentation/trace/tracepoints.txt
@@ -114,3 +114,8 @@ core kernel image or in modules.
 If the tracepoint has to be used in kernel modules, an
 EXPORT_TRACEPOINT_SYMBOL_GPL() or EXPORT_TRACEPOINT_SYMBOL() can be
 used to export the defined tracepoints.
+
+Note: The convenience macro TRACE_EVENT provides an alternative way to
+      define tracepoints. Check http://lwn.net/Articles/379903,
+      http://lwn.net/Articles/381064 and http://lwn.net/Articles/383362
+      for a series of articles with more details.