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Date: Mon, 4 Apr 2022 09:42:50 +0200
From: Vlastimil Babka <vbabka@...e.cz>
To: Zi Yan <ziy@...dia.com>, linux-mm@...ck.org
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
Steven Rostedt <rostedt@...dmis.org>,
David Hildenbrand <david@...hat.com>,
Mel Gorman <mgorman@...hsingularity.net>,
Mike Rapoport <rppt@...nel.org>,
Oscar Salvador <osalvador@...e.de>,
Andrew Morton <akpm@...ux-foundation.org>,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/2] mm: wrap __find_buddy_pfn() with a necessary buddy
page validation.
On 4/2/22 01:08, Zi Yan wrote:
> From: Zi Yan <ziy@...dia.com>
>
> Whenever the buddy of a page is found from __find_buddy_pfn(),
> page_is_buddy() should be used to check its validity. Add a helper
> function find_buddy_page_pfn() to find the buddy page and do the check
> together.
>
> Suggested-by: Linus Torvalds <torvalds@...ux-foundation.org>
> Link: https://lore.kernel.org/linux-mm/CAHk-=wji_AmYygZMTsPMdJ7XksMt7kOur8oDfDdniBRMjm4VkQ@mail.gmail.com/
> Signed-off-by: Zi Yan <ziy@...dia.com>
Acked-by: Vlastimil Babka <vbabka@...e.cz>
Thanks.
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