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@xxxxxxxxxx>
Reviewed-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
