| Date | Thu, 5 May 2011 18:08:04 +0300 | From | "Michael S. Tsirkin" <> | Subject | [PATCH 1/3] virtio: fix avail event support |
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make valid flag false, not true, on overrun
Reported-by: Tom Lendacky <tahm@linux.vnet.ibm.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> --- drivers/virtio/virtio_ring.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 57bf9d5..0ea0781 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -242,7 +242,7 @@ add_head: * kicked_avail index we stored. TODO: make sure all drivers * kick at least once in 2^16 and remove this. */ if (unlikely(vq->vring.avail->idx == vq->kicked_avail)) - vq->kicked_avail_valid = true; + vq->kicked_avail_valid = false; pr_debug("Added buffer head %i to %p\n", head, vq); END_USE(vq); -- 1.7.5.53.gc233e
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