Ensure that IRQ affinity setup also respects the queue-to-CPU mapping constraints provided by the block layer. This allows the NVMe driver to avoid assigning interrupts to CPUs that the block layer has excluded (e.g., isolated CPUs).
Reviewed-by: Hannes Reinecke <[email protected]> Signed-off-by: Daniel Wagner <[email protected]> --- drivers/nvme/host/pci.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index 2c6d9506b172509fb35716eba456c375f52f5b86..1d9c13aeddb12fa39eef68b7288d1f13eb98a0d7 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -2604,6 +2604,7 @@ static int nvme_setup_irqs(struct nvme_dev *dev, unsigned int nr_io_queues) .pre_vectors = 1, .calc_sets = nvme_calc_irq_sets, .priv = dev, + .mask = blk_mq_possible_queue_affinity(), }; unsigned int irq_queues, poll_queues; unsigned int flags = PCI_IRQ_ALL_TYPES | PCI_IRQ_AFFINITY; -- 2.51.0
