iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mtip32xx: fix bad use of smp_processor_id()

Browse Source 
mtip_pci_probe() dumps the current CPU when loaded, but it does
so in a preemptible context. Hence smp_processor_id() correctly
warns:

BUG: using smp_processor_id() in preemptible [00000000] code: systemd-udevd/155
caller is mtip_pci_probe+0x53/0x880 [mtip32xx]

Switch to raw_smp_processor_id(), since it's just informational
and persistent accuracy isn't important.

Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Jens Axboe 2014-03-10 14:29:37 -06:00
parent 10beafc190
commit 7f328908f9
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/block/mtip32xx/mtip32xx.c
View File

@ -4498,7 +4498,7 @@ static int mtip_pci_probe(struct pci_dev *pdev,
}
dev_info(&pdev->dev, "NUMA node %d (closest: %d,%d, probe on %d:%d)\n",
my_node, pcibus_to_node(pdev->bus), dev_to_node(&pdev->dev),
cpu_to_node(smp_processor_id()), smp_processor_id());
cpu_to_node(raw_smp_processor_id()), raw_smp_processor_id());
dd = kzalloc_node(sizeof(struct driver_data), GFP_KERNEL, my_node);
if (dd == NULL) {