Commit 210d150e authored Jun 04, 2015 by Jiang Liu Committed by Michael S. Tsirkin Jun 04, 2015

virtio_pci: Clear stale cpumask when setting irq affinity



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.

Cc: stable@vger.kernel.org
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

parent 8a7b19d8

drivers/virtio/virtio_pci_common.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -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);
		}