Re: [PATCH v7 20/22] dma: swiotlb: free dynamic pools from process context
Aneesh Kumar K.V <[email protected]>
| Newsgroups | dev.linux.lists.linux-coco,dev.linux.lists.iommu,org.infradead.lists.linux-arm-kernel,org.kernel.vger.linux-kernel,org.kernel.vger.linux-s390,org.ozlabs.lists.linuxppc-dev |
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| Message-ID | <[email protected]> |
Jason Gunthorpe <[email protected]> writes: > On Wed, Jul 01, 2026 at 11:19:24AM +0530, Aneesh Kumar K.V (Arm) wrote: > >> @@ -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