Thread (24 messages) 24 messages, 5 authors, 5d ago

Re: [PATCH v2 4/4] mm/mlock: migrate folios out of CMA when mlocking a range

From: "David Hildenbrand (Arm)" <david@kernel.org>
Date: 2026-07-09 10:04:48
Also in: linux-mm, linux-rt-devel, lkml

On 7/7/26 14:59, Wandun Chen wrote:
From: Wandun Chen <redacted>

The region covered by mlock[all] may contain CMA pages. cma_alloc installs
What about ZONE_MOVABLE where memory is supposed to be migratable?

Also, what about drivers that mmap() CMA memory to user space, and
__mm_populate()->populate_vma_page_range() would actually try mlocking them, and
they actually must remain on CMA areas?

-- 
Cheers,

David
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