On 7/1/25 8:48 PM, colyli@xxxxxxxxxx wrote: > From: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> > > Retrieve a folio from the page cache instead of a page. Removes a > hidden call to compound_head(). Then be sure to call folio_put() > instead of put_page() to release it. That doesn't save any calls > to compound_head(), just moves them around. Really needs a better subject line... I can do that while applying, however. How about: bcache: switch from pages to folios in read_super() or something like that. -- Jens Axboe
