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authorMasayoshi Mizuma <m.mizuma@jp.fujitsu.com>2016-06-20 03:33:17 +0300
committerJens Axboe <axboe@fb.com>2016-07-13 19:17:55 +0300
commit2fa843512bb5bbc0e876e4f55e22f26a3a8d3edb (patch)
treeb67ab35ae369935c62c0b4d120af3f3e6de8dd25 /drivers/nvme
parentf80ec966c19b78af4360e26e32e1ab775253105f (diff)
downloadlinux-2fa843512bb5bbc0e876e4f55e22f26a3a8d3edb.tar.xz
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>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/host/pci.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 120f9b8c926e..8083ae8ec96d 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -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)