linux-kernel - Re: [PATCH v2 2/2] mm/damon: replace pmd_huge() with pmd_trans

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Message-Id: <228E21D0-536C-40BC-A21A-52C1762DD2EB@linux.dev>
Date:   Thu, 18 Aug 2022 17:07:23 +0800
From:   Muchun Song <muchun.song@...ux.dev>
To:     Baolin Wang <baolin.wang@...ux.alibaba.com>
Cc:     sj@...nel.org, Andrew Morton <akpm@...ux-foundation.org>,
        Mike Kravetz <mike.kravetz@...cle.com>, damon@...ts.linux.dev,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/2] mm/damon: replace pmd_huge() with pmd_trans_huge()
 for THP



> On Aug 18, 2022, at 15:37, Baolin Wang <baolin.wang@...ux.alibaba.com> wrote:
> 
> The pmd_huge() is usually used to indicate if a pmd level hugetlb,
> however a pmd mapped huge page can only be THP in damon_mkold_pmd_entry()
> or damon_young_pmd_entry(), so replacing pmd_huge() with pmd_trans_huge()
> in this case to make code more readable according to the discussion [1].
> 
> [1] https://lore.kernel.org/all/098c1480-416d-bca9-cedb-ca495df69b64@linux.alibaba.com/
> 
> Signed-off-by: Baolin Wang <baolin.wang@...ux.alibaba.com>

Reviewed-by: Muchun Song <songmuchun@...edance.com>

Thanks.