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SubjectRe: [PATCH] tracefs: Do not allocate and free proxy_ops for lockdown
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On Fri, 2019-10-11 at 14:36 -0400, Steven Rostedt wrote:
> On Fri, 11 Oct 2019 11:20:30 -0700
> Linus Torvalds <torvalds@linux-foundation.org> wrote:
>
> > Willing to do that instead?
>
> Honestly, what you described was my preferred solution ;-)
>
> I just didn't want to upset the lockdown crowd if a new tracefs file
> was opened without doing this.
>
> Once locked down is set, can it ever be undone without rebooting?
[...]

Earlier versions of the lockdown patch set added a magic SysRq command
to turn it off. That's not currently present upstream but there may be
plans to add it.

Ben.

--
Ben Hutchings
It is easier to change the specification to fit the program
than vice versa.


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