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authorHeinz Graalfs <graalfs@linux.vnet.ibm.com>2013-10-29 03:10:19 +0400
committerRusty Russell <rusty@rustcorp.com.au>2013-10-29 04:58:17 +0400
commitb3b32c94133621c9ba7e4c8f29ec7533f2f4d8ec (patch)
treed24065656240c707ec76d6932e2f00554dc52713 /include
parent53c18c990644174935ca93e50d7ebd05e04cb9ee (diff)
downloadlinux-b3b32c94133621c9ba7e4c8f29ec7533f2f4d8ec.tar.xz
virtio_ring: add new function virtqueue_is_broken()
Add new function virtqueue_is_broken(). Callers of virtqueue_get_buf() should check for a broken queue. Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'include')
-rw-r--r--include/linux/virtio.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 9b4de15fcb2f..e4abb84199be 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -73,6 +73,8 @@ void *virtqueue_detach_unused_buf(struct virtqueue *vq);
unsigned int virtqueue_get_vring_size(struct virtqueue *vq);
+bool virtqueue_is_broken(struct virtqueue *vq);
+
/**
* virtio_device - representation of a device using virtio
* @index: unique position on the virtio bus