Re: [PATCH 1/6] mm/page_alloc: fix same zone check in __pageblock_pfn_to_page()
From: Mel Gorman <mgorman@suse.de>
Date: 2016-03-21 11:37:36
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On Mon, Mar 14, 2016 at 04:31:32PM +0900, js1304@gmail.com wrote:
From: Joonsoo Kim <redacted> There is a system that node's pfn are overlapped like as following. -----pfn--------> N0 N1 N2 N0 N1 N2 Therefore, we need to care this overlapping when iterating pfn range. In __pageblock_pfn_to_page(), there is a check for this but it's not sufficient. This check cannot distinguish the case that zone id is the same but node id is different. This patch fixes it.
I think you may be mixing up page_zone_id with page_zonenum. -- Mel Gorman SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>