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authorMichael S. Tsirkin <mst@redhat.com>2013-06-06 16:20:39 +0400
committerDavid S. Miller <davem@davemloft.net>2013-06-11 13:46:21 +0400
commit05c05351943cc03bf5c77e86953b24ae6fb21368 (patch)
tree51274c86eeca2cd5040979d1fdebd81fe0518a19 /drivers/vhost/vhost.h
parentc2020be3c35ab230b4ee046c262ddab3e0d3aab4 (diff)
downloadlinux-05c05351943cc03bf5c77e86953b24ae6fb21368.tar.xz
vhost: check owner before we overwrite ubuf_info
If device has an owner, we shouldn't touch ubuf_info since it might be in use. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/vhost/vhost.h')
-rw-r--r--drivers/vhost/vhost.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index a7ad63592987..64adcf99ff33 100644
--- a/drivers/vhost/vhost.h
+++ b/drivers/vhost/vhost.h
@@ -133,6 +133,7 @@ struct vhost_dev {
long vhost_dev_init(struct vhost_dev *, struct vhost_virtqueue **vqs, int nvqs);
long vhost_dev_set_owner(struct vhost_dev *dev);
+bool vhost_dev_has_owner(struct vhost_dev *dev);
long vhost_dev_check_owner(struct vhost_dev *);
struct vhost_memory *vhost_dev_reset_owner_prepare(void);
void vhost_dev_reset_owner(struct vhost_dev *, struct vhost_memory *);