Messages in this thread | | | Date | Fri, 20 May 2011 06:54:24 -0700 | From | Greg KH <> | Subject | Re: [RFC] add mount options to sysfs |
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On Fri, May 20, 2011 at 05:36:15PM +0400, Vasiliy Kulikov wrote: > 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/
That's the question for you, we would be changing the kernel/user api here, and odds are, something will break.
thansk,
greg k-h
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