[PATCH v3 14/23] iommu/pages: Move from struct page to struct ioptdesc and folio

[Baolu Lu]

On 2/26/25 03:39, Jason Gunthorpe wrote:
> This brings the iommu page table allocator into the modern world of having
> its own private page descriptor and not re-using fields from struct page
> for its own purpose. It follows the basic pattern of struct ptdesc which
> did this transformation for the CPU page table allocator.
> 
> Currently iommu-pages is pretty basic so this isn't a huge benefit,
> however I see a coming need for features that CPU allocator has, like sub
> PAGE_SIZE allocations, and RCU freeing. This provides the base
> infrastructure to implement those cleanly.
> 
> Remove numa_node_id() calls from the inlines and instead use NUMA_NO_NODE
> which will get switched to numa_mem_id(), which seems to be the right ID
> to use for memory allocations.
> 
> Signed-off-by: Jason Gunthorpe<jgg at nvidia.com>

Reviewed-by: Lu Baolu <baolu.lu at linux.intel.com>