linux-kernel - Re: [PATCH 1/8] mm: page_alloc: use get_pfnblock

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Message-ID: <20230821212219.GC106501@cmpxchg.org>
Date:   Mon, 21 Aug 2023 17:22:19 -0400
From:   Johannes Weiner <hannes@...xchg.org>
To:     Zi Yan <ziy@...dia.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Mel Gorman <mgorman@...hsingularity.net>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/8] mm: page_alloc: use get_pfnblock_migratetype where
 pfn available

On Mon, Aug 21, 2023 at 04:29:36PM -0400, Zi Yan wrote:
> On 21 Aug 2023, at 14:33, Johannes Weiner wrote:
> 
> > Save a pfn_to_page() lookup when the pfn is right there already.
> >
> > Signed-off-by: Johannes Weiner <hannes@...xchg.org>
> > ---
> >  mm/page_alloc.c | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> Just notice that it is already done in:
> https://lkml.kernel.org/r/20230811115945.3423894-3-shikemeng@huaweicloud.com

Even better :) I'll rebase on top of this.