On Tue, Aug 25, 2020 at 11:26:58AM +0800, Alex Shi wrote: > I tried reusing page->prviate to store lruvec pointer, that could remove some > regression on this, since private is generally unused on a lru page. But the > patch > is too buggy now.
page->private is for the use of the filesystem. You can grep for attach_page_private() to see how most filesystems use it. Some still use set_page_private() for various reasons.
