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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2010-03-06 04:44:14 +0000
committerEric Van Hensbergen <ericvh@gmail.com>2010-03-13 08:57:28 -0600
commit97ee9b0257402f4731b55dfea42f24d26d793ddf (patch)
tree191e6b08fd882862ede97925a0584f408f6e6e1c /include/linux
parentdaf9fe2ee9a203c4fc555cfe5c5f3d9f660e743c (diff)
net/9p: Use the tag name in the config space for identifying mount point
This patch use the tag name in the config space to identify the mount device. The the virtio device name depend on the enumeration order of the device and may not remain the same across multiple boots So we use the tag name which is set via qemu option to uniquely identify the mount device Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/virtio_9p.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/virtio_9p.h b/include/linux/virtio_9p.h
index 33227508008..5cf11765146 100644
--- a/include/linux/virtio_9p.h
+++ b/include/linux/virtio_9p.h
@@ -5,4 +5,16 @@
#include <linux/virtio_ids.h>
#include <linux/virtio_config.h>
+/* The feature bitmap for virtio 9P */
+
+/* The mount point is specified in a config variable */
+#define VIRTIO_9P_MOUNT_TAG 0
+
+struct virtio_9p_config {
+ /* length of the tag name */
+ __u16 tag_len;
+ /* non-NULL terminated tag name */
+ __u8 tag[0];
+} __attribute__((packed));
+
#endif /* _LINUX_VIRTIO_9P_H */