On Thu, Sep 27, 2018 at 12:14 AM Christopher Lameter <cl@xxxxxxxxx> wrote:
>
> On Wed, 26 Sep 2018, Pingfan Liu wrote:
>
> > -
> > if (unlikely(!freelist)) {
> > slab_out_of_memory(s, gfpflags, node);
> > return NULL;
> > }
> >
> > + VM_BUG_ON(!pfmemalloc_match(page, gfpflags));
> > page = c->page;
> > - if (likely(!kmem_cache_debug(s) && pfmemalloc_match(page, gfpflags)))
> > + if (likely(!kmem_cache_debug(s))
> > goto load_freelist;
> >
> > /* Only entered in the debug case */
> > - if (kmem_cache_debug(s) &&
> > - !alloc_debug_processing(s, page, freelist, addr))
> > + if (!alloc_debug_processing(s, page, freelist, addr))
> > goto new_slab; /* Slab failed checks. Next slab needed */
> > -
> > - deactivate_slab(s, page, get_freepointer(s, freelist), c);
>
> In the debug case the slab needs to be deactivated. Otherwise the
> slowpath will not be used and debug checks on the following objects will
> not be done.
>
Got it.
Thanks,
Pingfan
