linux-kernel - [RFC][PATCH v1 09/15] perf: export tracepoint events via sysfs: mce

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Date:	Thu, 22 Jul 2010 19:16:42 +0800
From:	Lin Ming <ming.m.lin@...el.com>
To:	Ingo Molnar <mingo@...e.hu>,
	Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>,
	Huang Ying <ying.huang@...el.com>,
	Andi Kleen <ak@...ux.intel.com>
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 09/15] perf: export tracepoint events via sysfs: mce

mce tracepoint events are exported like below,

/sys/devices/system/machinecheck/machinecheck0/events/
`-- mce_record
    |-- config
    `-- type
/sys/devices/system/machinecheck/machinecheck1/events/
`-- mce_record
    |-- config
    `-- type 

---
 arch/x86/kernel/cpu/mcheck/mce.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index 7a6f81e..eb6e127 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -1971,6 +1971,8 @@ static __cpuinit int mce_create_device(unsigned int cpu)
 	if (err)
 		return err;
 
+	perf_sys_add_tp(&per_cpu(mce_dev, cpu).kobj, "mce");
+
 	for (i = 0; mce_attrs[i]; i++) {
 		err = sysdev_create_file(&per_cpu(mce_dev, cpu), mce_attrs[i]);
 		if (err)


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