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nvme-pci: fix dma_vecs leak on p2p memory

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We don't unmap P2P memory, so we don't need to track it. The dma_vec
allocation was getting leaked on the completion.

Fixes: b8b7570a7e ("nvme-pci: fix dma unmapping when using PRPs and not using the IOVA mapping")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Keith Busch 2026-05-19 18:03:44 -07:00
parent 431e40042d
commit 85686c7296
1 changed files with 2 additions and 1 deletions
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3
drivers/nvme/host/pci.c
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@ -966,7 +966,8 @@ static bool nvme_pci_prp_save_mapping(struct request *req,
{
struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
if (dma_use_iova(&iod->dma_state) || !dma_need_unmap(dma_dev))
if (dma_use_iova(&iod->dma_state) || !dma_need_unmap(dma_dev) ||
(iod->flags & IOD_DATA_P2P))
return true;
if (!iod->nr_dma_vecs) {