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Documentation: tracing: Add per-group/all events enablement desciption

Add ftrace.event.<GROUP>.enable and ftrace.event.enable bootconfig
description in the boot-time tracing document.

Link: https://lkml.kernel.org/r/162264438901.302580.10697703336929432947.stgit@devnote2

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

authored by

Masami Hiramatsu and committed by
Steven Rostedt (VMware) ee0a0701 4f99f848

+6
+6
Documentation/trace/boottime-trace.rst
··· 99 99 ftrace.[instance.INSTANCE.]event.GROUP.EVENT.enable 100 100 Enable GROUP:EVENT tracing. 101 101 102 + ftrace.[instance.INSTANCE.]event.GROUP.enable 103 + Enable all event tracing within GROUP. 104 + 105 + ftrace.[instance.INSTANCE.]event.enable 106 + Enable all event tracing. 107 + 102 108 ftrace.[instance.INSTANCE.]event.GROUP.EVENT.filter = FILTER 103 109 Set FILTER rule to the GROUP:EVENT. 104 110