Re: [RFC][PATCH 7/7] kref: Implement using refcount_t
From: Kees Cook
Date: Fri Jan 27 2017 - 16:14:39 EST
On Fri, Jan 27, 2017 at 1:58 AM, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
> On Thu, Jan 26, 2017 at 03:14:41PM -0800, Kees Cook wrote:
>> 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. :)
> Nothing much, except lack of time. I spend the last several days hunting
> bugs, that trumps new features on my todo list.
Totally understood. I was just trying to see if there was anything I
could help with for it. Are you expecting it to change much from your
original posted version?