On Mon, Feb 04, 2019 at 04:08:02PM +0000, Christopher Lameter wrote: > It may be worth noting a couple of times in this text that this was > designed for anonymous memory and that such use is/was ok. We are talking > about a use case here using mmapped access with a regular filesystem that > was not initially intended. The mmapping of from the hugepages filesystem > is special in that it is not a device that is actually writing things > back. > > Any use with a filesystem that actually writes data back to a medium > is something that is broken. Saying it was not intended seems rather odd, as it was supported since day 0 and people made use of it.