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Re: [PATCH v2] refcount: Create unchecked atomic_t implementation

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On Wed, Jun 07, 2017 at 07:58:31PM -0700, Kees Cook wrote:
> Many subsystems will not use refcount_t unless there is a way to build the
> kernel so that there is no regression in speed compared to atomic_t. This
> adds CONFIG_REFCOUNT_FULL to enable the full refcount_t implementation
> which has the validation but is slightly slower. When not enabled,
> refcount_t uses the basic unchecked atomic_t routines, which results in
> no code changes compared to just using atomic_t directly.
> 
> Signed-off-by: Kees Cook <keescook@chromium.org>

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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[PATCH v2] refcount: Create unchecked atomic_t implementation Kees Cook <keescook@chromium.org> - 2017-06-08 05:00 +0200
  Re: [PATCH v2] refcount: Create unchecked atomic_t implementation Greg KH <gregkh@linuxfoundation.org> - 2017-06-08 08:00 +0200
  Re: [PATCH v2] refcount: Create unchecked atomic_t implementation Christoph Hellwig <hch@infradead.org> - 2017-06-08 09:00 +0200
    RE: [PATCH v2] refcount: Create unchecked atomic_t implementation "Reshetova, Elena" <elena.reshetova@intel.com> - 2017-06-08 10:00 +0200
      Re: [PATCH v2] refcount: Create unchecked atomic_t implementation Davidlohr Bueso <dave@stgolabs.net> - 2017-06-08 22:10 +0200
        Re: [PATCH v2] refcount: Create unchecked atomic_t implementation Manfred Spraul <manfred@colorfullife.com> - 2017-06-09 06:30 +0200
          Re: [PATCH v2] refcount: Create unchecked atomic_t implementation Peter Zijlstra <peterz@infradead.org> - 2017-06-09 09:30 +0200

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