Re: [PATCH] Shrink rbtree

[David Woodhouse <dwmw2@infradead.org>]

On Fri, 2006-04-21 at 21:57 +0100, Hugh Dickins wrote:
> 
> } __attribute__((aligned(sizeof(long))));
>         /*
>          * On most architectures that alignment is already the case; but
>          * must be enforced here for CRIS, to let the least signficant bit
>          * of struct page's "mapping" pointer be used for PAGE_MAPPING_ANON.
>          */
> 
> You can often get away with it - I notice we never added the same
> alignment to struct anon_vma, which in theory needed it just as much.
> Some accident of how structures are packed into slabs on CRIS, I suppose.

That sounds very strange to me, but it's harmless enough to add the
explicit alignment.

-- 
dwmw2