Messages in this thread | | | Subject | Re: [PATCH v2 2/3] mm/compaction: pass only pageblock aligned range to pageblock_pfn_to_page | From | Vlastimil Babka <> | Date | Wed, 10 Feb 2016 13:52:08 +0100 |
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On 02/04/2016 07:19 AM, Joonsoo Kim wrote: > pageblock_pfn_to_page() is used to check there is valid pfn and all pages > in the pageblock is in a single zone. If there is a hole in the pageblock, > passing arbitrary position to pageblock_pfn_to_page() could cause to skip > whole pageblock scanning, instead of just skipping the hole page. For > deterministic behaviour, it's better to always pass pageblock aligned > range to pageblock_pfn_to_page(). It will also help further optimization > on pageblock_pfn_to_page() in the following patch. > > Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
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