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* tracing: replace TP<var> with TP_<var>Steven Rostedt2009-03-101-4/+4
| | | | | | | | | Impact: clean up The macros TPPROTO, TPARGS, TPFMT, TPRAWFMT, and TPCMD all look a bit ugly. This patch adds an underscore to their names. Signed-off-by: Steven Rostedt <srostedt@redhat.com>
* samples: mark {static|__init|__exit} for {init|exit} functionsQinghuang Feng2009-01-063-6/+6
| | | | | | | | | | | | None of these (init|exit) functions is called from other functions which is outside the kernel module mechanism or kernel itself, so mark them as {static|__init|__exit}. Signed-off-by: Qinghuang Feng <qhfeng.kernel@gmail.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* tracepoints: add DECLARE_TRACE() and DEFINE_TRACE()Mathieu Desnoyers2008-11-162-2/+5
| | | | | | | | | | | | | | | | | | Impact: API *CHANGE*. Must update all tracepoint users. Add DEFINE_TRACE() to tracepoints to let them declare the tracepoint structure in a single spot for all the kernel. It helps reducing memory consumption, especially when declaring a lot of tracepoints, e.g. for kmalloc tracing. *API CHANGE WARNING*: now, DECLARE_TRACE() must be used in headers for tracepoint declarations rather than DEFINE_TRACE(). This is the sane way to do it. The name previously used was misleading. Updates scheduler instrumentation to follow this API change. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* tracepoints: samples, fix teardownMathieu Desnoyers2008-11-162-0/+2
| | | | | | | | | | | Impact: fix a bug in sample tracepoints Need a tracepoint_synchronize_unregister() before the end of exit() to make sure every probe callers have exited the non preemptible section and thus are not executing the probe code anymore. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* tracing: tracepoints, samplesMathieu Desnoyers2008-10-145-0/+169
Tracepoint example code under samples/. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Acked-by: 'Peter Zijlstra' <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>