Re: [PATCH v4 0/3] mm/hmm: Add mmap lock-drop support for userfaultfd-backed mappings

[Andrew Morton]

On Tue, 30 Jun 2026 08:21:21 -0700 Stanislav Kinsburskii <skinsburskii@xxxxxxxxx> wrote:

> This series extends the HMM framework to support userfaultfd-backed memory
> by allowing the mmap read lock to be dropped during hmm_range_fault().

Cool.

AI review might have found some issues:

	https://sashiko.dev/#/patchset/178283277041.183052.6873574850714079228.stgit@skinsburskii

One of these is pre-existing so please take a look, see if there's
something you feel should be done about it.

As the series is presently unreviewed, I'll await that review feedback
and/or v5, thanks.