Re: [PATCH v4 03/18] PCI/P2PDMA: Restrict the p2pmem search to pool backed providers

On Fri, 21 Aug 2026 22:38:34 +0300, Leon Romanovsky [off-list ref] wrote:

pci_p2pmem_find_many() exists to pick a provider that the caller will
then allocate from with pci_alloc_p2pmem(), which goes straight to the
gen_pool:

	ret = (void *)gen_pool_alloc_owner(p2pdma->pool, size, (void **) &ref);

pci_has_p2pmem() does not ask for that pool, only for the published flag.
The two used to be equivalent, because a provider could only exist by way
of pci_p2pdma_add_resource(), which always creates the pool.

[...]

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>

-- 
Jason