Messages in this thread | | | From | Zi Yan <> | Subject | Re: [PATCH] mm: migrate: use thp_order instead of HPAGE_PMD_ORDER for new page allocation. | Date | Mon, 04 Apr 2022 14:37:41 -0400 |
| |
On 4 Apr 2022, at 14:28, Andrew Morton wrote:
> On Mon, 4 Apr 2022 12:53:25 -0400 Zi Yan <zi.yan@sent.com> wrote: > >> From: Zi Yan <ziy@nvidia.com> >> >> 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://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore.kernel.org%2Flinux-mm%2F20220404132908.GA785673%40u2004%2F&data=04%7C01%7Cziy%40nvidia.com%7Cbf27ebf19d8a49a9b4b008da1668dc09%7C43083d15727340c1b7db39efd9ccc17a%7C0%7C0%7C637846936880192108%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=pgvzV3wv6icqkMaWY2koB9X4VqlPMaSHeB8r7%2Fv1938%3D&reserved=0 > > it fixes a kernel crash!
Thank you for adding the information.
-- Best Regards, Yan, Zi [unhandled content-type:application/pgp-signature] | |