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authorRusty Russell <rusty@rustcorp.com.au>2010-02-24 14:22:14 -0600
committerRusty Russell <rusty@rustcorp.com.au>2010-02-24 14:22:17 +1030
commit169c246a30808588436794e96a97c61a01af9bed (patch)
treecce7c1e1ca52687f711a18f46ea741841f43ea34 /drivers/virtio/virtio_balloon.c
parent1f34c71afe5115e77a49c4e67720a66e27053e54 (diff)
downloadvexpress-lsk-169c246a30808588436794e96a97c61a01af9bed.tar.gz
virtio: fix balloon without VIRTIO_BALLOON_F_STATS_VQ
When running under qemu-kvm-0.11.0: BUG: unable to handle kernel paging request at 56e58955 ... Process vballoon (pid: 1297, ti=c7976000 task=c70a6ca0 task.ti=c7 ... Call Trace: [<c88253a3>] ? balloon+0x1b3/0x440 [virtio_balloon] [<c041c2d7>] ? schedule+0x327/0x9d0 [<c88251f0>] ? balloon+0x0/0x440 [virtio_balloon] [<c014a2d4>] ? kthread+0x74/0x80 [<c014a260>] ? kthread+0x0/0x80 [<c0103b36>] ? kernel_thread_helper+0x6/0x30 need_stats_update should be zero-initialized. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Adam Litke <agl@us.ibm.com>
Diffstat (limited to 'drivers/virtio/virtio_balloon.c')
-rw-r--r--drivers/virtio/virtio_balloon.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index 3db3d242c3e..369f2eebbad 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -292,6 +292,7 @@ static int virtballoon_probe(struct virtio_device *vdev)
vb->num_pages = 0;
init_waitqueue_head(&vb->config_change);
vb->vdev = vdev;
+ vb->need_stats_update = 0;
/* We expect two virtqueues: inflate and deflate,
* and optionally stat. */