Messages in this thread Patch in this message | | | From | Jiang Liu <> | Subject | [PATCH] virtio_pci: Clear stale cpumask when setting irq affinity | Date | Thu, 4 Jun 2015 16:41:44 +0800 |
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The cpumask vp_dev->msix_affinity_masks[info->msix_vector] may contain staled information when vp_set_vq_affinity() gets called, so clear it before setting the new cpu bit mask.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> --- drivers/virtio/virtio_pci_common.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/virtio/virtio_pci_common.c b/drivers/virtio/virtio_pci_common.c index e894eb278d83..eba1b7ac7294 100644 --- a/drivers/virtio/virtio_pci_common.c +++ b/drivers/virtio/virtio_pci_common.c @@ -423,6 +423,7 @@ int vp_set_vq_affinity(struct virtqueue *vq, int cpu) if (cpu == -1) irq_set_affinity_hint(irq, NULL); else { + cpumask_clear(mask); cpumask_set_cpu(cpu, mask); irq_set_affinity_hint(irq, mask); } -- 1.7.10.4
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