Jason Gunthorpe [off-list ref] writes:

On Wed, Jul 01, 2026 at 11:19:24AM +0530, Aneesh Kumar K.V (Arm) wrote:

quoted

@@ -840,7 +843,7 @@ static void swiotlb_del_pool(struct device *dev, struct io_tlb_pool *pool)
 	list_del_rcu(&pool->node);
 	spin_unlock_irqrestore(&dev->dma_io_tlb_lock, flags);
 
-	call_rcu(&pool->rcu, swiotlb_dyn_free);
+	swiotlb_schedule_dyn_free(pool);

This knows if the pool has cc_shared memory in it since there is now a
flag tracking that? So should the work queue version be conditional on
that flag?

We could definitely do that. I was not sure whether it was worth it,
considering that it would add two paths for SWIOTLB dynamic free.

-aneesh