On Wed, Mar 31, 2021 at 07:47:01PM +0100, Matthew Wilcox (Oracle) wrote: > The medium-term goal is to convert all filesystems and some device > drivers to work in terms of folios. This series contains a lot of > explicit conversions, but it's important to realise it's removing a lot > of implicit conversions in some relatively hot paths. There will be very > few conversions from folios when this work is completed; filesystems, > the page cache, the LRU and so on will generally only deal with folios. I'm pretty excited for this to land - 4k page overhead has been a pain point for me for quite some time. I know this is going to be a lot of churn but I think leveraging the type system is exactly the right way to go about this, and I can't wait to start converting bcachefs.