Re: [PATCH v1 03/14] mm: add iomem vma selection for memory migration
From: Christoph Hellwig <hch@lst.de>
Date: 2021-08-25 07:46:07
Also in:
amd-gfx, linux-mm, linux-xfs
On Tue, Aug 24, 2021 at 10:48:17PM -0500, Alex Sierra wrote:
} else {
- if (!(migrate->flags & MIGRATE_VMA_SELECT_SYSTEM))
+ if (!(migrate->flags & MIGRATE_VMA_SELECT_SYSTEM) &&
+ !(migrate->flags & MIGRATE_VMA_SELECT_IOMEM))
goto next;
pfn = pte_pfn(pte);
if (is_zero_pfn(pfn)) {.. also how is this going to work for the device public memory? That should be pte_special() an thus fail vm_normal_page.