From: Christoph Hellwig <hch@lst.de>
To: Thomas Gleixner <tglx@linutronix.de>, Jens Axboe <axboe@kernel.dk>
Cc: Keith Busch <keith.busch@intel.com>,
linux-nvme@lists.infradead.org, linux-block@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 7/7] nvme: allocate queues for all possible CPUs
Date: Fri, 19 May 2017 10:57:56 +0200 [thread overview]
Message-ID: <20170519085756.29742-8-hch@lst.de> (raw)
In-Reply-To: <20170519085756.29742-1-hch@lst.de>
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>
---
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 fed803232edc..6580a21d1425 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -1520,7 +1520,7 @@ 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;
--
2.11.0
prev parent reply other threads:[~2017-05-19 8:58 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-19 8:57 spread MSI(-X) vectors to all possible CPUs V2 Christoph Hellwig
2017-05-19 8:57 ` [PATCH 1/7] genirq: allow assigning affinity to present but not online CPUs Christoph Hellwig
2017-05-19 8:57 ` [PATCH 2/7] genirq/affinity: assign vectors to all present CPUs Christoph Hellwig
2017-05-21 18:31 ` Thomas Gleixner
2017-05-23 9:35 ` Christoph Hellwig
2017-05-19 8:57 ` [PATCH 3/7] genirq/affinity: factor out a irq_affinity_set helper Christoph Hellwig
2017-05-21 19:03 ` Thomas Gleixner
2017-05-23 9:37 ` Christoph Hellwig
2017-05-19 8:57 ` [PATCH 4/7] genirq/affinity: update CPU affinity for CPU hotplug events Christoph Hellwig
2017-05-19 8:57 ` [PATCH 5/7] blk-mq: include all present CPUs in the default queue mapping Christoph Hellwig
2017-05-19 8:57 ` [PATCH 6/7] blk-mq: create hctx for each present CPU Christoph Hellwig
2017-05-19 8:57 ` Christoph Hellwig [this message]
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