On Mon, Aug 24, 2015 at 05:02:16PM +0200, Vlastimil Babka wrote:
> On 08/19/2015 11:21 AM, Kirill A. Shutemov wrote:
> >Since 8456a648cf44 ("slab: use struct page for slab management") nobody
> >uses slab_page field in struct page.
> >
> >Let's drop it.
>
> Ah, how about dropping this comment in mm/slab.c:slab_destroy() as well?
>
> /*
> * RCU free overloads the RCU head over the LRU.
> * slab_page has been overloeaded over the LRU,
> * however it is not used from now on so that
> * we can use it safely.
> */
Actually, whole block can be replaced by
call_rcu(&page->rcu_head, kmem_rcu_free);
Thanks.
--
Kirill A. Shutemov
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