提交 267fb90b 编写于 作者: M Mike Christie 提交者: Ilya Dryomov

rbd: add 'cluster_fsid' sysfs rbd device attribute

Export the cluster fsid, so tools like udev and multipath-tools can use
it for part of the uuid.
Signed-off-by: NMike Christie <mchristi@redhat.com>
Signed-off-by: NIlya Dryomov <idryomov@gmail.com>
上级 005a07bf
......@@ -53,6 +53,10 @@ client_id
The ceph unique client id that was assigned for this specific session.
cluster_fsid
The ceph cluster UUID. (August 2016, since 4.9.)
features
A hexadecimal encoding of the feature bits for this image.
......
......@@ -4612,6 +4612,14 @@ static ssize_t rbd_client_id_show(struct device *dev,
ceph_client_gid(rbd_dev->rbd_client->client));
}
static ssize_t rbd_cluster_fsid_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct rbd_device *rbd_dev = dev_to_rbd_dev(dev);
return sprintf(buf, "%pU\n", &rbd_dev->rbd_client->client->fsid);
}
static ssize_t rbd_pool_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
......@@ -4715,6 +4723,7 @@ static DEVICE_ATTR(major, S_IRUGO, rbd_major_show, NULL);
static DEVICE_ATTR(minor, S_IRUGO, rbd_minor_show, NULL);
static DEVICE_ATTR(client_addr, S_IRUGO, rbd_client_addr_show, NULL);
static DEVICE_ATTR(client_id, S_IRUGO, rbd_client_id_show, NULL);
static DEVICE_ATTR(cluster_fsid, S_IRUGO, rbd_cluster_fsid_show, NULL);
static DEVICE_ATTR(pool, S_IRUGO, rbd_pool_show, NULL);
static DEVICE_ATTR(pool_id, S_IRUGO, rbd_pool_id_show, NULL);
static DEVICE_ATTR(name, S_IRUGO, rbd_name_show, NULL);
......@@ -4730,6 +4739,7 @@ static struct attribute *rbd_attrs[] = {
&dev_attr_minor.attr,
&dev_attr_client_addr.attr,
&dev_attr_client_id.attr,
&dev_attr_cluster_fsid.attr,
&dev_attr_pool.attr,
&dev_attr_pool_id.attr,
&dev_attr_name.attr,
......
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