Messages in this thread Patch in this message | | | Date | Wed, 28 Jun 2017 14:05:04 -0700 | From | tip-bot for Christoph Hellwig <> | Subject | [tip:irq/core] nvme: Allocate queues for all possible CPUs |
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Commit-ID: 425a17cbfff933c4cca4eeef5caa5926d198dd85 Gitweb: http://git.kernel.org/tip/425a17cbfff933c4cca4eeef5caa5926d198dd85 Author: Christoph Hellwig <hch@lst.de> AuthorDate: Mon, 26 Jun 2017 12:20:58 +0200 Committer: Thomas Gleixner <tglx@linutronix.de> CommitDate: Wed, 28 Jun 2017 23:00:07 +0200
nvme: Allocate queues for all possible CPUs
Unlike most drіvers that simply pass the maximum possible vectors to pci_alloc_irq_vectors NVMe needs to configure the device before allocting the vectors, so it needs a manual update for the new scheme of using all present CPUs.
Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jens Axboe <axboe@kernel.dk> Cc: Keith Busch <keith.busch@intel.com> Cc: linux-block@vger.kernel.org Cc: linux-nvme@lists.infradead.org Link: http://lkml.kernel.org/r/20170626102058.10200-4-hch@lst.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
--- drivers/nvme/host/pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index 951042a..b3dcd7a 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -1525,7 +1525,7 @@ static int nvme_setup_io_queues(struct nvme_dev *dev) struct pci_dev *pdev = to_pci_dev(dev->dev); int result, nr_io_queues, size; - nr_io_queues = num_online_cpus(); + nr_io_queues = num_present_cpus(); result = nvme_set_queue_count(&dev->ctrl, &nr_io_queues); if (result < 0) return result;
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