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Re: [PATCH 5/5] mm/page_owner: don't define fields on struct page_ext by hard-coding

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On 08/10/2016 08:16 AM, js1304@gmail.com wrote:
> From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
>
> There is a memory waste problem if we define field on struct page_ext
> by hard-coding. Entry size of struct page_ext includes the size of
> those fields even if it is disabled at runtime. Now, extra memory request
> at runtime is possible so page_owner don't need to define it's own fields
> by hard-coding.
>
> This patch removes hard-coded define and uses extra memory for storing
> page_owner information in page_owner. Most of code are just mechanical
> changes.
>
> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>

Acked-by: Vlastimil Babka <vbabka@suse.cz>

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[PATCH 0/5] Reduce memory waste by page extension user js1304@gmail.com - 2016-08-11 00:20 +0200
  [PATCH 2/5] mm/debug_pagealloc: don't allocate page_ext if we don't use guard page js1304@gmail.com - 2016-08-11 00:50 +0200
    Re: [PATCH 2/5] mm/debug_pagealloc: don't allocate page_ext if we  don't use guard page Vlastimil Babka <vbabka@suse.cz> - 2016-08-11 12:00 +0200
  Re: [PATCH 1/5] mm/debug_pagealloc: clean-up guard page handling code Vlastimil Babka <vbabka@suse.cz> - 2016-08-11 11:40 +0200
  Re: [PATCH 1/5] mm/debug_pagealloc: clean-up guard page handling code Vlastimil Babka <vbabka@suse.cz> - 2016-08-11 11:50 +0200
    Re: [PATCH 1/5] mm/debug_pagealloc: clean-up guard page handling code Sergey Senozhatsky <sergey.senozhatsky@gmail.com> - 2016-08-12 14:30 +0200
      Re: [PATCH 1/5] mm/debug_pagealloc: clean-up guard page handling code Joonsoo Kim <iamjoonsoo.kim@lge.com> - 2016-08-16 05:00 +0200
  Re: [PATCH 3/5] mm/page_owner: move page_owner specific function to  page_owner.c Vlastimil Babka <vbabka@suse.cz> - 2016-08-11 14:40 +0200
  Re: [PATCH 4/5] mm/page_ext: support extra space allocation by  page_ext user Vlastimil Babka <vbabka@suse.cz> - 2016-08-11 15:00 +0200
  Re: [PATCH 5/5] mm/page_owner: don't define fields on struct page_ext  by hard-coding Vlastimil Babka <vbabka@suse.cz> - 2016-08-11 15:10 +0200

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