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authorFrederic Weisbecker <fweisbec@gmail.com>2009-01-10 11:34:13 -0800
committerIngo Molnar <mingo@elte.hu>2009-01-14 12:11:37 +0100
commit002bb86d8d42f18937aef396c3ecd65c7e02e21a (patch)
treece8e81f6dc2515f6442198bbd4b527d900982f8e /Documentation/CodingStyle
parenta14a07b8018b714e03a39ff2180c66e307ef4238 (diff)
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op-kernel-dev-002bb86d8d42f18937aef396c3ecd65c7e02e21a.tar.gz
tracing/ftrace: separate events tracing and stats tracing engine
Impact: tracing's Api change Currently, the stat tracing depends on the events tracing. When you switch to a new tracer, the stats files of the previous tracer will disappear. But it's more scalable to separate those two engines. This way, we can keep the stat files of one or several tracers when we want, without bothering of multiple tracer stat files or tracer switching. To build/destroys its stats files, a tracer just have to call register_stat_tracer/unregister_stat_tracer everytimes it wants to. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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