tree e3e102f83c9a7fe44935ff7cd57540f4b6dce9e4
parent b8b94265337f83b7db9c5f429b1769d463d7da8c
author Frederic Weisbecker <fweisbec@gmail.com> 1237759844 +0100
committer Ingo Molnar <mingo@elte.hu> 1237821946 +0100

debugfs: function to know if debugfs is initialized

Impact: add new debugfs API

With ftrace, some tracers are registered in early initcalls
and attempt to create files on the debugfs filesystem.
Depending on when they are activated, they can try to create their
file at any time. Some checks can be done on the tracing area
but providing a helper to know if debugfs is registered make it
really more easy.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <1237759847-21025-2-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>