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Date: Thu, 10 Nov 2016 22:13:10 +0100
From: Peter Zijlstra <>
To: Will Deacon <>
Cc: Elena Reshetova <>,,,,,,,
Subject: Re: [RFC v4 PATCH 00/13] HARDENED_ATOMIC

On Thu, Nov 10, 2016 at 08:48:38PM +0000, Will Deacon wrote:
> > That said, I still don't much like this.
> > 
> > I would much rather you make kref useful and use that. It still means
> > you get to audit all refcounts in the kernel, but hey, you had to do
> > that anyway.
> What needs to happen to kref to make it useful? Like many others, I've
> been guilty of using atomic_t for refcounts in the past.

As it stands kref is a pointless wrapper. If it were to provide
something actually useful, like wrap protection, then it might actually
make sense to use it.

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