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NVMe: Let the kthread take care of devices earlier 

If interrupts are misconfigured, the kthread will be needed to process
admin queue completions.

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
This commit is contained in:
Matthew Wilcox 2011-02-15 16:28:20 -05:00
parent b348b7d543
commit 740216fc59
1 changed files with 10 additions and 4 deletions
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14
drivers/block/nvme.c
View File

@ -1112,6 +1112,8 @@ static int nvme_kthread(void *data)
int i; int i;
for (i = 0; i < dev->queue_count; i++) { for (i = 0; i < dev->queue_count; i++) {
struct nvme_queue *nvmeq = dev->queues[i]; struct nvme_queue *nvmeq = dev->queues[i];
if (!nvmeq)
continue;
spin_lock_irq(&nvmeq->q_lock); spin_lock_irq(&nvmeq->q_lock);
if (nvme_process_cq(nvmeq)) if (nvme_process_cq(nvmeq))
printk("process_cq did something\n"); printk("process_cq did something\n");
@ -1437,17 +1439,21 @@ static int __devinit nvme_probe(struct pci_dev *pdev,
goto unmap; goto unmap;
dev->queue_count++; dev->queue_count++;
result = nvme_dev_add(dev);
if (result)
goto delete;
spin_lock(&dev_list_lock); spin_lock(&dev_list_lock);
list_add(&dev->node, &dev_list); list_add(&dev->node, &dev_list);
spin_unlock(&dev_list_lock); spin_unlock(&dev_list_lock);
result = nvme_dev_add(dev);
if (result)
goto delete;
return 0; return 0;
delete: delete:
spin_lock(&dev_list_lock);
list_del(&dev->node);
spin_unlock(&dev_list_lock);
nvme_free_queues(dev); nvme_free_queues(dev);
unmap: unmap:
iounmap(dev->bar); iounmap(dev->bar);