Re: [PATCH] mm: fix unproperly folio_put by changing API in read_pages

[Matthew Wilcox]

On Wed, Mar 27, 2024 at 01:54:06PM +0800, zhaoyang.huang wrote:
> From: Zhaoyang Huang <zhaoyang.huang@xxxxxxxxxx>
> 
> According to the comments of readahead_page[3], the refcnt which
> represents page cache dropped in [1] makes sense for two reasons, '1.
> The folio is going to do IO and is locked until IO done;2. The refcnt
> will be added back when found again from the page cache and then serve
> for PTE or vfs' while it doesn't make sense in [2] as the refcnt of
> page cache will be dropped in filemap_remove_folio.

NAK, per previous email.