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| author | Michael S. Tsirkin <mst@redhat.com> | 2010-06-24 16:59:59 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2010-06-27 11:52:25 +0300 |
| commit | d5675bd204efd87a174eeea592de23c4c4e7f908 (patch) | |
| tree | 11ec7e455d21285da68fa7db40af07ebf45f9d0e /drivers/vhost/vhost.h | |
| parent | 38000a94a902e94ca8b5498f7871c6316de8957a (diff) | |
| download | linux-d5675bd204efd87a174eeea592de23c4c4e7f908.tar.gz linux-d5675bd204efd87a174eeea592de23c4c4e7f908.tar.bz2 linux-d5675bd204efd87a174eeea592de23c4c4e7f908.zip | |
vhost: break out of polling loop on error
When ring parsing fails, we currently handle this
as ring empty condition. This means that we enable
kicks and recheck ring empty: if this not empty,
we re-start polling which of course will fail again.
Instead, let's return a negative error code and stop polling.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vhost/vhost.h')
| -rw-r--r-- | drivers/vhost/vhost.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index 44591ba9b07a..11ee13dba0f7 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -120,10 +120,10 @@ long vhost_dev_ioctl(struct vhost_dev *, unsigned int ioctl, unsigned long arg); int vhost_vq_access_ok(struct vhost_virtqueue *vq); int vhost_log_access_ok(struct vhost_dev *); -unsigned vhost_get_vq_desc(struct vhost_dev *, struct vhost_virtqueue *, - struct iovec iov[], unsigned int iov_count, - unsigned int *out_num, unsigned int *in_num, - struct vhost_log *log, unsigned int *log_num); +int vhost_get_vq_desc(struct vhost_dev *, struct vhost_virtqueue *, + struct iovec iov[], unsigned int iov_count, + unsigned int *out_num, unsigned int *in_num, + struct vhost_log *log, unsigned int *log_num); void vhost_discard_vq_desc(struct vhost_virtqueue *); int vhost_add_used(struct vhost_virtqueue *, unsigned int head, int len); |