On Jan 28, 2016 8:44 AM, "Joonsoo Kim" <iamjoonsoo.kim@lge.com> wrote:
>
> On Wed, Jan 27, 2016 at 07:25:07PM +0100, Alexander Potapenko wrote:
> > This patch adds KASAN hooks to SLAB allocator.
> >
> > This patch is based on the "mm: kasan: unified support for SLUB and
> > SLAB allocators" patch originally prepared by Dmitry Chernenkov.
> >
> > Signed-off-by: Alexander Potapenko <glider@google.com>
> > ---
> >  Documentation/kasan.txt  |  5 ++-
>
> ...
>
> > +#ifdef CONFIG_SLAB
> > +struct kasan_alloc_meta *get_alloc_info(struct kmem_cache *cache,
> > +                                     const void *object)
> > +{
> > +     return (void *)object + cache->kasan_info.alloc_meta_offset;
> > +}
> > +
> > +struct kasan_free_meta *get_free_info(struct kmem_cache *cache,
> > +                                   const void *object)
> > +{
> > +     return (void *)object + cache->kasan_info.free_meta_offset;
> > +}
> > +#endif
>
> I cannot find the place to store stack info for free. get_free_info()
> isn't used except print_object(). Plese let me know where.

This is covered by other patches in this patchset.

> Thanks.