On Thu, Oct 04, 2018 at 12:09:49PM +0200, Johannes Thumshirn wrote: > On Tue, Oct 02, 2018 at 08:06:34AM -0700, Christoph Hellwig wrote: > > There is no promise, sorry. > > Well there have been lot's of articles on for instance lwn.net [1] [2] > [3] describing how to avoid the "overhead" of the page cache when > running on persistent memory. Since when is an article on some website a promise (of what exactly) by linux kernel developers?