diff options
| author | Keith Busch <[email protected]> | 2016-05-13 12:38:09 -0600 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2016-05-17 17:14:21 -0600 |
| commit | 2800b8e7d9dfca1fd9d044dcf7a046b5de5a7239 (patch) | |
| tree | 94ebf9f41b80b80f06faeacb234ec8673b471e29 | |
| parent | 24b9f0cf00c8e8df29a4ddfec8c139ad62753113 (diff) | |
NVMe: Allocate queues only for online cpus
The driver previously requested allocating queues for the total possible
number of CPUs so that blk-mq could rebalance these if CPUs were added
after initialization. The number of hardware contexts can now be changed
at runtime, so we only need to allocate the number of online queues
since we can add more later.
Suggested-by: Jeff Lien <[email protected]>
Signed-off-by: Keith Busch <[email protected]>
Reviewed-by: Johannes Thumshirn <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
| -rw-r--r-- | drivers/nvme/host/pci.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index 0f093f14d348..3c7b625a5e56 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -1394,7 +1394,7 @@ static int nvme_setup_io_queues(struct nvme_dev *dev) struct pci_dev *pdev = to_pci_dev(dev->dev); int result, i, vecs, nr_io_queues, size; - nr_io_queues = num_possible_cpus(); + nr_io_queues = num_online_cpus(); result = nvme_set_queue_count(&dev->ctrl, &nr_io_queues); if (result < 0) return result; |