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.
