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tracepoints: API doc update to data argument

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Describe the @data argument (probe private data).

Link: http://lkml.kernel.org/r/1394587948-27878-1-git-send-email-mathieu.desnoyers@efficios.com

Fixes: 38516ab59f "tracing: Let tracepoints have data passed to tracepoint callbacks"
CC: Ingo Molnar <mingo@kernel.org>
CC: Frederic Weisbecker <fweisbec@gmail.com>
CC: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Mathieu Desnoyers 2014-03-11 21:32:28 -04:00 committed by Steven Rostedt
parent db0fbadcbd
commit 4c11628a16
1 changed files with 4 additions and 0 deletions
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4
kernel/tracepoint.c
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@ -376,6 +376,7 @@ tracepoint_add_probe(const char *name, void *probe, void *data)
* tracepoint_probe_register - Connect a probe to a tracepoint
* @name: tracepoint name
* @probe: probe handler
* @data: probe private data
*
* Returns 0 if ok, error value on error.
* The probe address must at least be aligned on the architecture pointer size.
@ -424,6 +425,7 @@ tracepoint_remove_probe(const char *name, void *probe, void *data)
* tracepoint_probe_unregister - Disconnect a probe from a tracepoint
* @name: tracepoint name
* @probe: probe function pointer
* @data: probe private data
*
* We do not need to call a synchronize_sched to make sure the probes have
* finished running before doing a module unload, because the module unload
@ -464,6 +466,7 @@ static void tracepoint_add_old_probes(void *old)
* tracepoint_probe_register_noupdate - register a probe but not connect
* @name: tracepoint name
* @probe: probe handler
* @data: probe private data
*
* caller must call tracepoint_probe_update_all()
*/
@ -488,6 +491,7 @@ EXPORT_SYMBOL_GPL(tracepoint_probe_register_noupdate);
* tracepoint_probe_unregister_noupdate - remove a probe but not disconnect
* @name: tracepoint name
* @probe: probe function pointer
* @data: probe private data
*
* caller must call tracepoint_probe_update_all()
*/