On Mon, 4 Apr 2022 12:53:25 -0400 Zi Yan <zi.yan@xxxxxxxx> wrote: > From: Zi Yan <ziy@xxxxxxxxxx> > > With folios support, it is possible to have other than HPAGE_PMD_ORDER > THPs, in the form of folios, in the system. Use thp_order() to correctly > determine the source page order during migration. Changelog doesn't describe the end user visible effects of the bug. And it really should, because > Link: https://lore.kernel.org/linux-mm/20220404132908.GA785673@u2004/ it fixes a kernel crash!
