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nvme: avoid crashes when node 0 is memoryless node. 

When CONFIG_NUMA is enabled and node 0 is memoryless, the system
crashes because nvme_probe() sets the device->numa_node to 0 by
set_dev_node(&pdev->dev, 0), so it tries to allocate memory from node 0.
To avoid the crash, we should change the 0 to first_memory_node.

Signed-off-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Masayoshi Mizuma 2016-06-20 09:33:17 +09:00 committed by Jens Axboe
parent f80ec966c1
commit 2fa843512b
1 changed files with 1 additions and 1 deletions
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2
drivers/nvme/host/pci.c
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@ -1918,7 +1918,7 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
node = dev_to_node(&pdev->dev);
if (node == NUMA_NO_NODE)
set_dev_node(&pdev->dev, 0);
set_dev_node(&pdev->dev, first_memory_node);
dev = kzalloc_node(sizeof(*dev), GFP_KERNEL, node);
if (!dev)