Messages in this thread | | | Date | Thu, 8 Jun 2017 07:56:55 +0200 | From | Greg KH <> | Subject | 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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