On Tue, May 14, 2019 at 04:35:34PM +0200, Alexander Potapenko wrote:
> [...]
> diff --git a/mm/slab.h b/mm/slab.h
> index 43ac818b8592..24ae887359b8 100644
> --- a/mm/slab.h
> +++ b/mm/slab.h
> @@ -524,4 +524,20 @@ static inline int cache_random_seq_create(struct kmem_cache *cachep,
> [...]
> +static inline bool slab_want_init_on_free(struct kmem_cache *c)
> +{
> + if (static_branch_unlikely(&init_on_free))
> + return !(c->ctor);
BTW, why is this checking for c->ctor here? Shouldn't it not matter for
the free case?
> + else
> + return false;
> +}
--
Kees Cook
