linux-kernel - Re: [PATCH 2/2] migrate_pages_batch: code cleanup: remove is

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Message-ID: <69A2F0FD-2F25-412B-978E-57984064E75C@nvidia.com>
Date:   Tue, 09 May 2023 10:26:40 -0400
From:   Zi Yan <ziy@...dia.com>
To:     Huang Ying <ying.huang@...el.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, Xin Hao <xhao@...ux.alibaba.com>,
        Yang Shi <shy828301@...il.com>,
        Baolin Wang <baolin.wang@...ux.alibaba.com>,
        Oscar Salvador <osalvador@...e.de>,
        Alistair Popple <apopple@...dia.com>
Subject: Re: [PATCH 2/2] migrate_pages_batch: code cleanup: remove is_large

On 8 May 2023, at 22:20, Huang Ying wrote:

> Previously, in migrate_pages_batch we need to track whether the source
> folio is large/THP before splitting.  So is_large is used to cache
> folio_test_large() result.  Now, we don't need that variable any more
> because we don't count retrying and failure of large folios (only
> counting that of THP folios).  So, in this patch, is_large is removed
> to simplify the code.
>
> This is just code cleanup, no functionality changes are expected.
>
> Signed-off-by: "Huang, Ying" <ying.huang@...el.com>
> Cc: Xin Hao <xhao@...ux.alibaba.com>
> Cc: Zi Yan <ziy@...dia.com>
> Cc: Yang Shi <shy828301@...il.com>
> Cc: Baolin Wang <baolin.wang@...ux.alibaba.com>
> Cc: Oscar Salvador <osalvador@...e.de>
> Cc: Alistair Popple <apopple@...dia.com>
> ---
>  mm/migrate.c | 11 ++---------
>  1 file changed, 2 insertions(+), 9 deletions(-)
>


LGTM. Reviewed-by: Zi Yan <ziy@...dia.com>

--
Best Regards,
Yan, Zi

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