Re: [RFC] add mount options to sysfs

From: Vasiliy Kulikov
Date: Fri May 20 2011 - 09:36:23 EST

On Fri, May 20, 2011 at 17:34 +0400, Vasiliy Kulikov wrote:
> On Fri, May 20, 2011 at 06:30 -0700, Greg KH wrote:
> > > Correct. So, if I understood you, you are OK with adding mount options
> > > for debugfs, but not sysfs, right? What is the difference between them
> > > in sense of permissions?
> >
> > debugfs is "there are no rules", so changing the permissions on it
> > shouldn't break anything as no userspace tools "should" rely on it. Now
> > that really isn't true (see the perf stuff), but overall it is, so I
> > don't worry about changing things there as much as sysfs, which has
> > hundreds of tools relying on it.
> What would break if the default behaviour is not changed?

Err... sorry, s/would break/would it break/

Vasiliy Kulikov - bringing security into open computing environments
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