On 2023/10/24 16:41, Huang Jiaqing wrote:
Adopt the new iopf_queue_find_pdev func() to look up PCI device
for better efficiency and avoid the CPU stuck issue with parallel
heavy dsa_test.
Signed-off-by: Huang Jiaqing <jiaqing.huang@xxxxxxxxx>
---
drivers/iommu/intel/svm.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c
index 659de9c16024..0f1018b76557 100644
--- a/drivers/iommu/intel/svm.c
+++ b/drivers/iommu/intel/svm.c
@@ -672,7 +672,7 @@ static irqreturn_t prq_event_thread(int irq, void *d)
if (unlikely(req->lpig && !req->rd_req && !req->wr_req))
goto prq_advance;
- pdev = pci_get_domain_bus_and_slot(iommu->segment,
+ pdev = iopf_queue_find_pdev(iommu->iopf_queue,
PCI_BUS_NUM(req->rid),
req->rid & 0xff);
Minor: align the new line with the left parenthesis.
/*
@@ -688,7 +688,6 @@ static irqreturn_t prq_event_thread(int irq, void *d)
trace_prq_report(iommu, &pdev->dev, req->qw_0, req->qw_1,
req->priv_data[0], req->priv_data[1],
iommu->prq_seq_number++);
- pci_dev_put(pdev);
prq_advance:
head = (head + sizeof(*req)) & PRQ_RING_MASK;
}
Best regards,
baolu
