On Mon, 4 Feb 2019, Christoph Hellwig wrote: > 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. Well until last year I never thought there was a problem because I considered it separate from regular filesystem I/O.
