Commit a4fc9c51 authored Apr 20, 2018 by Michael S. Tsirkin Committed by Greg Kroah-Hartman May 02, 2018

virtio: add ability to iterate over vqs



commit 24a7e4d20783c0514850f24a5c41ede46ab058f0 upstream.

For cleanup it's helpful to be able to simply scan all vqs and discard
all data. Add an iterator to do that.

Cc: stable@vger.kernel.org
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 311a886f

include/linux/virtio.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -124,6 +124,9 @@ int virtio_device_freeze(struct virtio_device *dev);
		int virtio_device_restore(struct virtio_device *dev);
		#endif

		#define virtio_device_for_each_vq(vdev, vq) \
		list_for_each_entry(vq, &vdev->vqs, list)

		/**
		* virtio_driver - operations for a virtio I/O driver
		* @driver: underlying device driver (populate name and owner).