linux-kernel - Re: [PATCH 08/10] mm: page_alloc: set migratetype inside move

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Message-ID: <59998760-491d-408b-a452-852d3250b5db@suse.cz>
Date: Tue, 26 Mar 2024 16:40:24 +0100
From: Vlastimil Babka <vbabka@...e.cz>
To: Johannes Weiner <hannes@...xchg.org>,
 Andrew Morton <akpm@...ux-foundation.org>
Cc: Mel Gorman <mgorman@...hsingularity.net>, Zi Yan <ziy@...dia.com>,
 "Huang, Ying" <ying.huang@...el.com>, David Hildenbrand <david@...hat.com>,
 linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 08/10] mm: page_alloc: set migratetype inside
 move_freepages()

On 3/20/24 7:02 PM, Johannes Weiner wrote:
> From: Zi Yan <ziy@...dia.com>
> 
> This avoids changing migratetype after move_freepages() or
> move_freepages_block(), which is error prone. It also prepares for
> upcoming changes to fix move_freepages() not moving free pages
> partially in the range.
> 
> Signed-off-by: Zi Yan <ziy@...dia.com>
> Signed-off-by: Johannes Weiner <hannes@...xchg.org>

Reviewed-by: Vlastimil Babka <vbabka@...e.cz>

BTW noticed in -mm this has R-b: Zi Yan which is odd as he's the author. In
the subthread for patch 9/10 Zi posted a R-b for patch 9/10 and its fixup,
not this one :)