Re: [PATCH v2 0/2] mm/hmm: A fix and a selftest

[Lorenzo Stoakes]

On Sat, May 30, 2026 at 08:54:10AM +0000, Dev Jain wrote:
> Patch 1 fixes a stale warning present from the time when only migration
> softleaf entries were supported at the PMD level.
>
> Patch 2 adds some code into hmm-tests.c which exercises the pagemap path
> for PMD device-private entries.

Thanks!

FYI running the HMM tests locally I ran into a nasty issue that I sent a patch
for [0]!

[0]: https://lore.kernel.org/linux-mm/20260601083044.57132-1-ljs@xxxxxxxxxx/

Cheers, Lorenzo

>
> ---
> Applies on mm-unstable (404fb4f38e8f).
>
> Dev Jain (2):
>   fs/proc/task_mmu: do not warn on seeing non-migration pmd entry
>   selftests/mm/hmm-tests: test pagemap reads of PMD device-private
>     entries
>
>  fs/proc/task_mmu.c                     |  1 -
>  tools/testing/selftests/mm/hmm-tests.c | 29 ++++++++++++++++++++++++++
>  2 files changed, 29 insertions(+), 1 deletion(-)
>
> --
> 2.43.0
>