From: Greg KH <gregkh@suse.de>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Lin Ming <ming.m.lin@intel.com>, Ingo Molnar <mingo@elte.hu>,
Andi Kleen <andi@firstfloor.org>,
Stephane Eranian <eranian@google.com>,
Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
linux-kernel <linux-kernel@vger.kernel.org>,
Kay Sievers <kay.sievers@vrfy.org>
Subject: Re: [PATCH v2 1/6] perf: Add interface to add general events to sysfs
Date: Mon, 25 Jul 2011 08:20:38 -0700 [thread overview]
Message-ID: <20110725152038.GA23356@suse.de> (raw)
In-Reply-To: <1311582723.2617.50.camel@laptop>
On Mon, Jul 25, 2011 at 10:32:03AM +0200, Peter Zijlstra wrote:
> On Mon, 2011-07-25 at 16:11 +0800, Lin Ming wrote:
> > It's strange that I didn't find a way to check if a directory is present
> > in sysfs. Any hint?
>
> sysfs is voodoo for me, best I can come up with is, ask the sysfs
> folks ;-)
>
> Kay, Greg?
What are you trying to do here specifically?
sysfs is not ment to be walked from within the kernel, only from
userspace. Perhaps that is your problem here?
greg k-h
next prev parent reply other threads:[~2011-07-25 15:22 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-15 14:34 [PATCH v2 0/6] perf: Intel uncore pmu counting support Lin Ming
2011-07-15 14:34 ` [PATCH v2 1/6] perf: Add interface to add general events to sysfs Lin Ming
2011-07-18 13:34 ` Peter Zijlstra
2011-07-18 14:00 ` Lin Ming
2011-07-19 7:52 ` Lin Ming
2011-07-25 7:08 ` Lin Ming
2011-07-25 7:57 ` Peter Zijlstra
2011-07-25 8:32 ` Lin Ming
2011-07-25 8:11 ` Lin Ming
2011-07-25 8:32 ` Peter Zijlstra
2011-07-25 15:20 ` Greg KH [this message]
2011-07-26 1:06 ` Lin Ming
2011-07-26 4:42 ` Greg KH
2011-07-26 5:50 ` Lin Ming
2011-07-15 14:34 ` [PATCH v2 2/6] perf, x86: Add Intel Nehalem/Westmere uncore pmu Lin Ming
2011-07-15 14:48 ` Lin Ming
2011-07-18 14:20 ` Peter Zijlstra
2011-07-18 14:54 ` Lin Ming
2011-07-18 16:11 ` Peter Zijlstra
2011-07-15 14:35 ` [PATCH v2 3/6] perf, x86: Add Intel SandyBridge " Lin Ming
2011-07-15 14:35 ` [PATCH v2 4/6] perf: Remove perf_event_attr::type check Lin Ming
2011-07-15 14:35 ` [PATCH v2 5/6] perf tool: Allow system-wide 'perf stat' without 'command' Lin Ming
2011-07-15 14:35 ` [PATCH v2 6/6] perf tool: Parse general/raw events from sysfs Lin Ming
2011-08-06 20:10 ` Stephane Eranian
2011-08-06 23:38 ` Lin Ming
2011-08-07 23:47 ` Stephane Eranian
2011-08-08 1:08 ` Lin Ming
2011-08-08 5:54 ` Stephane Eranian
2011-08-08 8:48 ` Peter Zijlstra
2011-08-08 8:57 ` Lin Ming
2011-08-08 9:03 ` Peter Zijlstra
2011-08-11 22:38 ` Stephane Eranian
2011-08-15 19:18 ` Corey Ashford
2011-08-31 12:21 ` [PATCH v2 0/6] perf: Intel uncore pmu counting support Stephane Eranian
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