Messages in this thread | | | Subject | Re: [PATCH] Shrink rbtree | From | David Woodhouse <> | Date | Fri, 21 Apr 2006 23:12:53 +0100 |
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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
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