tracing/boot: Add instance node support

Add instance node support to boot-time tracing. User can set
some options and event nodes under instance node.

 - ftrace.instance.INSTANCE[...]
   Add new INSTANCE instance. Some options and event nodes
   are acceptable for instance node.

Link: http://lkml.kernel.org/r/157867242413.17873.9814204526141500278.stgit@devnote2

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Masami Hiramatsu 2020-01-11 01:07:04 +09:00 • committed by Steven Rostedt (VMware)
commit 4f712a4d04