Re: [PATCH 01/11] mm/mremap: introduce more mergeable mremap via MREMAP_RELOCATE_ANON

[Lorenzo Stoakes]

Hi Andrew, I enclose a fixpatch to address a couple issues here.

Obviously a lot of ongoing review but important to address known problems as we
go.

This address the two syzbot reports - one around folio locking in non-sleep
context due to PTE spinlock held [0] and the other around a lock misbalance due
to a coding error [1].

[0]: https://lore.kernel.org/all/aFEAPOozHsR1/PLI@ly-workstation/
[1]: https://lore.kernel.org/all/68512333.a70a0220.395abc.0205.GAE@xxxxxxxxxx/

I will (almost certainly) find a better way to address [0], I have an idea
already, but will put in a respin at that point.

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