linux-kernel - [PATCH 2/3] tracing: Add comments for the other bits of ftrace_event

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Date:	Thu, 14 Jun 2012 21:01:25 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	linux-kernel@...r.kernel.org
Cc:	Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH 2/3] tracing: Add comments for the other bits of ftrace_event_call.flags

From: Steven Rostedt <srostedt@...hat.com>

	TRACE_EVENT_FL_ENABLED_BIT,
	TRACE_EVENT_FL_FILTERED_BIT,
	TRACE_EVENT_FL_RECORDED_CMD_BIT,

Have comments about what they are, but:

	TRACE_EVENT_FL_CAP_ANY_BIT,
	TRACE_EVENT_FL_NO_SET_FILTER_BIT,
	TRACE_EVENT_FL_IGNORE_ENABLE_BIT,

do not, making them second class citizens. To prevent another
class warfare, these bits have protested for their right to be
commented. And By Golly! I'll give them what they want!

Signed-off-by: Steven Rostedt <rostedt@...dmis.org>
---
 include/linux/ftrace_event.h |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 176a939..1aff183 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -207,6 +207,9 @@ struct ftrace_event_call {
 	 *   bit 1:		enabled
 	 *   bit 2:		filter_active
 	 *   bit 3:		enabled cmd record
+	 *   bit 4:		allow trace by non root (cap any)
+	 *   bit 5:		failed to apply filter
+	 *   bit 6:		ftrace internal event (do not enable)
 	 *
 	 * Changes to flags must hold the event_mutex.
 	 *
-- 
1.7.10



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