3.16.7-ckt14 -stable review patch. If anyone has any objections, please let me know.
------------------ From: Jiang Liu <[email protected]> commit 210d150e1f5da506875e376422ba31ead2d49621 upstream. 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 <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]> [ luis: backported to 3.16: - file rename: virtio_pci_common.c -> virtio_pci.c ] Signed-off-by: Luis Henriques <[email protected]> --- drivers/virtio/virtio_pci.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c index 52c4607fec9e..c09527df161c 100644 --- a/drivers/virtio/virtio_pci.c +++ b/drivers/virtio/virtio_pci.c @@ -645,6 +645,7 @@ static 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); } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
