From: Vlastimil Babka <vbabka@suse.cz>
To: Zi Yan <ziy@nvidia.com>, linux-mm@kvack.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Steven Rostedt <rostedt@goodmis.org>,
David Hildenbrand <david@redhat.com>,
Mel Gorman <mgorman@techsingularity.net>,
Mike Rapoport <rppt@kernel.org>,
Oscar Salvador <osalvador@suse.de>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 2/2] mm: wrap __find_buddy_pfn() with a necessary buddy page validation.
Date: Mon, 4 Apr 2022 09:42:50 +0200 [thread overview]
Message-ID: <191c3fd8-b858-06b7-df1f-f2f40490d1b6@suse.cz> (raw)
In-Reply-To: <20220401230804.1658207-2-zi.yan@sent.com>
On 4/2/22 01:08, Zi Yan wrote:
> From: Zi Yan <ziy@nvidia.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@linux-foundation.org>
> Link: https://lore.kernel.org/linux-mm/CAHk-=wji_AmYygZMTsPMdJ7XksMt7kOur8oDfDdniBRMjm4VkQ@mail.gmail.com/
> Signed-off-by: Zi Yan <ziy@nvidia.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Thanks.
prev parent reply other threads:[~2022-04-04 7:43 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-01 23:08 [PATCH v3 1/2] mm: page_alloc: simplify pageblock migratetype check in __free_one_page() Zi Yan
2022-04-01 23:08 ` [PATCH v3 2/2] mm: wrap __find_buddy_pfn() with a necessary buddy page validation Zi Yan
2022-04-04 7:42 ` Vlastimil Babka [this message]
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