Re: [RFC][PATCH] page->mapping clarification [1/3] base functions

From: KAMEZAWA Hiroyuki
Date: Wed Sep 26 2007 - 17:51:27 EST

On Wed, 26 Sep 2007 20:31:02 +0100 (BST)
Hugh Dickins <hugh@xxxxxxxxxxx> wrote:
> Would that waste a little memory? I think not with SLUB,
> but perhaps with SLOB, which packs a little tighter.

maybe just depends on the amount of used anon_vma and page_mapping_info etc...
I don't think a system which uses SLOB consumes such structs so much
as that memory-for-alignment is considered as "waste" of memory.

Anyway, I decided to go ahead with current container-info-per-page
implementation. If the size of page struct is problem at mainline inclusion
discussion, I'll be back.

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