linux-kernel - Re: [PATCH v2 3/8] f2fs: drop usage of page

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Date: Sun, 28 Apr 2024 11:17:37 +0800
From: Chao Yu <chao@...nel.org>
To: Matthew Wilcox <willy@...radead.org>, Kairui Song <kasong@...cent.com>
Cc: linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
 "Huang, Ying" <ying.huang@...el.com>, Chris Li <chrisl@...nel.org>,
 Barry Song <v-songbaohua@...o.com>, Ryan Roberts <ryan.roberts@....com>,
 Neil Brown <neilb@...e.de>, Minchan Kim <minchan@...nel.org>,
 Hugh Dickins <hughd@...gle.com>, David Hildenbrand <david@...hat.com>,
 Yosry Ahmed <yosryahmed@...gle.com>, linux-fsdevel@...r.kernel.org,
 linux-kernel@...r.kernel.org, Jaegeuk Kim <jaegeuk@...nel.org>,
 linux-f2fs-devel@...ts.sourceforge.net
Subject: Re: [PATCH v2 3/8] f2fs: drop usage of page_index

On 2024/4/24 6:58, Matthew Wilcox wrote:
> On Wed, Apr 24, 2024 at 01:03:34AM +0800, Kairui Song wrote:
>> @@ -4086,8 +4086,7 @@ void f2fs_clear_page_cache_dirty_tag(struct page *page)
>>   	unsigned long flags;
>>   
>>   	xa_lock_irqsave(&mapping->i_pages, flags);
>> -	__xa_clear_mark(&mapping->i_pages, page_index(page),
>> -						PAGECACHE_TAG_DIRTY);
>> +	__xa_clear_mark(&mapping->i_pages, page->index, PAGECACHE_TAG_DIRTY);
>>   	xa_unlock_irqrestore(&mapping->i_pages, flags);
>>   }
> 
> I just sent a patch which is going to conflict with this:
> 
> https://lore.kernel.org/linux-mm/20240423225552.4113447-3-willy@infradead.org/
> 
> Chao Yu, Jaegeuk Kim; what are your plans for converting f2fs to use

Hi Matthew,

I've converted .read_folio and .readahead of f2fs to use folio w/ below patchset,
and let me take a look how to support and enable large folio...

https://lore.kernel.org/linux-f2fs-devel/20240422062417.2421616-1-chao@kernel.org/

Thanks,

> folios?  This is getting quite urgent.