linux-kernel - [RFC][PATCH v1 10/15] perf: export tracepoint events via sysfs: module

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Date:	Thu, 22 Jul 2010 19:16:59 +0800
From:	Lin Ming <ming.m.lin@...el.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Robert Richter <robert.richter@....com>,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	Johannes Berg <johannes@...solutions.net>,
	Peter Zijlstra <peterz@...radead.org>,
	Greg KH <greg@...ah.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Paul Mundt <lethal@...ux-sh.org>,
	"eranian@...il.com" <eranian@...il.com>,
	"Gary.Mohr@...l.com" <Gary.Mohr@...l.com>,
	"arjan@...ux.intel.com" <arjan@...ux.intel.com>,
	"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>,
	Paul Mackerras <paulus@...ba.org>,
	"David S. Miller" <davem@...emloft.net>,
	Russell King <rmk+kernel@....linux.org.uk>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Will Deacon <will.deacon@....com>,
	Maynard Johnson <mpjohn@...ibm.com>,
	Carl Love <carll@...ibm.com>,
	Kay Sievers <kay.sievers@...y.org>,
	lkml <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: [RFC][PATCH v1 10/15] perf: export tracepoint events via sysfs:
 module

module tracepoint events are exported like below,

/sys/module/events/
|-- module_free
|   |-- config
|   `-- type
|-- module_get
|   |-- config
|   `-- type
|-- module_load
|   |-- config
|   `-- type
|-- module_put
|   |-- config
|   `-- type
`-- module_request
    |-- config
    `-- type
---
 kernel/params.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/kernel/params.c b/kernel/params.c
index 0b30ecd..be3326c 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -24,6 +24,7 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/ctype.h>
+#include <linux/perf_event.h>
 
 #if 0
 #define DEBUGP printk
@@ -763,6 +764,8 @@ static int __init param_sysfs_init(void)
 
 	param_sysfs_builtin();
 
+	perf_sys_add_tp(&module_kset->kobj, "module");
+
 	return 0;
 }
 subsys_initcall(param_sysfs_init);



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