[PATCH 1/3] virtio: fix avail event support
flat view
STALE5627d
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: 2011-05-05 15:09:11
Also in:
kvm, linux-s390, lkml
Subsystem:
the rest, virtio core · Maintainers:
Linus Torvalds, "Michael S. Tsirkin", Jason Wang, Eugenio Pérez
Revision v1 of 4 in this series.
make valid flag false, not true, on overrun Reported-by: Tom Lendacky <redacted> 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