Re: [PATCH v3 08/14] mm: Combine first three unions in struct page

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On Wed, Apr 18, 2018 at 11:49:06AM -0700, Matthew Wilcox wrote:
> From: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx>
> 
> By combining these three one-word unions into one three-word union,
> we make it easier for users to add their own multi-word fields to struct
> page, as well as making it obvious that SLUB needs to keep its double-word
> alignment for its freelist & counters.
> 
> No field moves position; verified with pahole.
> 
> Signed-off-by: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx>

Acked-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>

-- 
 Kirill A. Shutemov




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