@@ -1067,9 +1067,18 @@ static int __nvme_poll(struct nvme_queue *nvmeq, unsigned int tag)
if (!nvme_cqe_pending(nvmeq))
return 0;
- spin_lock_irq(&nvmeq->cq_lock);
+ /*
+ * Polled queue doesn't have an IRQ, no need to disable ints
+ */
+ if (!nvmeq->polled)
+ local_irq_disable();
+
+ spin_lock(&nvmeq->cq_lock);
found = nvme_process_cq(nvmeq, &start, &end, tag);
- spin_unlock_irq(&nvmeq->cq_lock);
+ spin_unlock(&nvmeq->cq_lock);
+
+ if (!nvmeq->polled)
+ local_irq_enable();
nvme_complete_cqes(nvmeq, start, end);
return found;
A polled queued doesn't trigger interrupts, so it's always safe to grab the queue lock without disabling interrupts. Cc: Keith Busch <keith.busch@intel.com> Cc: linux-nvme@lists.infradead.org Signed-off-by: Jens Axboe <axboe@kernel.dk> --- drivers/nvme/host/pci.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-)