linux-kernel - Re: [PATCH v2 3/9] mm/vmscan: introduce helper function reclaim_page

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Message-ID: <18ac3908-d162-f1ea-e91f-1da203272b74@huawei.com>
Date:   Mon, 11 Apr 2022 09:53:15 +0800
From:   Miaohe Lin <linmiaohe@...wei.com>
To:     Matthew Wilcox <willy@...radead.org>
CC:     <akpm@...ux-foundation.org>, <ying.huang@...el.com>,
        <songmuchun@...edance.com>, <hch@...radead.org>,
        <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 3/9] mm/vmscan: introduce helper function
 reclaim_page_list()

On 2022/4/9 21:44, Matthew Wilcox wrote:
> On Sat, Apr 09, 2022 at 05:34:54PM +0800, Miaohe Lin wrote:
>> +	nr_reclaimed = shrink_page_list(page_list, pgdat, &sc, &dummy_stat, false);
>> +	while (!list_empty(page_list)) {
>> +		folio = lru_to_folio(page_list);
>> +		list_del(&folio->lru);
>> +		putback_lru_page(&folio->page);
> 
> folio_putback_lru()

I thought folio_putback_lru is deliberately not to use because there is no caller of folio_putback_lru now.
But it seems I was wrong. Will do it in next version.

Thanks a lot!

> 
> .
>