linux-kernel - Re: [PATCH v2 2/2] mm:vmscan: the ref clean dirty folio skip unmap

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Message-ID: <e38bf11a-9372-4302-8405-af44422d879e@vivo.com>
Date:   Fri, 20 Oct 2023 11:37:41 +0800
From:   zhiguojiang <justinjiang@...o.com>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, opensource.kernel@...o.com
Subject: Re: [PATCH v2 2/2] mm:vmscan: the ref clean dirty folio skip unmap



在 2023/10/20 11:29, Matthew Wilcox 写道:
> On Thu, Oct 19, 2023 at 09:42:11PM +0800, Zhiguo Jiang wrote:
>> +++ b/mm/vmscan.c
>> @@ -1225,7 +1225,10 @@ static unsigned int shrink_folio_list(struct list_head *folio_list,
>>   			stat->nr_ref_keep += nr_pages;
>>   			goto keep_locked;
>>   		case FOLIOREF_RECLAIM:
>> +			break;
>>   		case FOLIOREF_RECLAIM_CLEAN:
>> +			if (dirty)
>> +				goto activate_locked;
> Why activate_locked and not keep_locked?
Hi,
This is  a mistake, should be keep_locked.