Re: [RFC][PATCH 7/7] kref: Implement using refcount_t

From: Kees Cook
Date: Thu Jan 26 2017 - 18:15:24 EST

On Mon, Nov 14, 2016 at 9:39 AM, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
> Provide refcount_t, an atomic_t like primitive built just for
> refcounting.
> It provides overflow and underflow checks as well as saturation
> semantics such that when it overflows, we'll never attempt to free it
> again, ever.
> Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>


I see the other 6 patches from this series are in -next, but the
refcount_t implementation is still missing. What's needed to land this
in -next? It's blocking sending the atomic_t -> refcount_t patches,
which will likely all go through various maintainers, so we need to
have refcount_t first. :)



Kees Cook
Nexus Security