Re: [PATCH RFC 07/29] mm/migrate: rename isolate_movable_page() to isolate_movable_ops_page()
From: Zi Yan <ziy@nvidia.com>
Date: 2025-06-18 18:14:22
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linux-doc, linux-fsdevel, linux-mm, lkml, virtualization
On 18 Jun 2025, at 13:39, David Hildenbrand wrote:
... and start moving back to per-page things that will absolutely not be folio things in the future. Add documentation and a comment that the remaining folio stuff (lock, refcount) will have to be reworked as well. While at it, convert the VM_BUG_ON() into a WARN_ON_ONCE() and handle it gracefully (relevant with further changes), and convert a WARN_ON_ONCE() into a VM_WARN_ON_ONCE_PAGE().
The reason is that there is no upstream code, which use movable_ops for folios? Is there any fundamental reason preventing movable_ops from being used on folios? Best Regards, Yan, Zi