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SubjectRe: [PATCH v2 1/6] perf: Add interface to add general events to sysfs
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


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