void ocfs2_setup_hb_callbacks(struct ocfs2_super *osb)
{
/* Not exactly a heartbeat callback, but leads to essentially
* the same path so we set it up here. */
dlm_setup_eviction_cb(&osb->osb_eviction_cb,
ocfs2_dlm_eviction_cb,
osb);
}
static int o2cb_cluster_connect(struct ocfs2_cluster_connection *conn)
{
int rc = 0;
u32 dlm_key;
struct dlm_ctxt *dlm;
struct o2dlm_private *priv;
struct dlm_protocol_version fs_version;
BUG_ON(conn == NULL);
BUG_ON(conn->cc_proto == NULL);
/* for now we only have one cluster/node, make sure we see it
* in the heartbeat universe */
if (!o2hb_check_local_node_heartbeating()) {
if (o2hb_global_heartbeat_active())
mlog(ML_ERROR, "Global heartbeat not started\n");
rc = -EINVAL;
goto out;
}
priv = kzalloc(sizeof(struct o2dlm_private), GFP_KERNEL);
if (!priv) {
rc = -ENOMEM;
goto out_free;
}
/* This just fills the structure in. It is safe to pass conn. */
dlm_setup_eviction_cb(&priv->op_eviction_cb, o2dlm_eviction_cb,
conn);
conn->cc_private = priv;
/* used by the dlm code to make message headers unique, each
* node in this domain must agree on this. */
dlm_key = crc32_le(0, conn->cc_name, conn->cc_namelen);
fs_version.pv_major = conn->cc_version.pv_major;
fs_version.pv_minor = conn->cc_version.pv_minor;
dlm = dlm_register_domain(conn->cc_name, dlm_key, &fs_version);
if (IS_ERR(dlm)) {
rc = PTR_ERR(dlm);
mlog_errno(rc);
goto out_free;
}
conn->cc_version.pv_major = fs_version.pv_major;
conn->cc_version.pv_minor = fs_version.pv_minor;
conn->cc_lockspace = dlm;
dlm_register_eviction_cb(dlm, &priv->op_eviction_cb);
out_free:
if (rc && conn->cc_private)
kfree(conn->cc_private);
out:
return rc;
}
static int o2cb_cluster_connect(struct ocfs2_cluster_connection *conn)
{
int rc = 0;
u32 dlm_key;
struct dlm_ctxt *dlm;
struct o2dlm_private *priv;
struct dlm_protocol_version fs_version;
BUG_ON(conn == NULL);
BUG_ON(conn->cc_proto == NULL);
/* Ensure cluster stack is up and all nodes are connected */
rc = o2cb_cluster_check();
if (rc) {
printk(KERN_ERR "o2cb: Cluster check failed. Fix errors "
"before retrying.\n");
goto out;
}
priv = kzalloc(sizeof(struct o2dlm_private), GFP_KERNEL);
if (!priv) {
rc = -ENOMEM;
goto out_free;
}
/* This just fills the structure in. It is safe to pass conn. */
dlm_setup_eviction_cb(&priv->op_eviction_cb, o2dlm_eviction_cb,
conn);
conn->cc_private = priv;
/* used by the dlm code to make message headers unique, each
* node in this domain must agree on this. */
dlm_key = crc32_le(0, conn->cc_name, conn->cc_namelen);
fs_version.pv_major = conn->cc_version.pv_major;
fs_version.pv_minor = conn->cc_version.pv_minor;
dlm = dlm_register_domain(conn->cc_name, dlm_key, &fs_version);
if (IS_ERR(dlm)) {
rc = PTR_ERR(dlm);
mlog_errno(rc);
goto out_free;
}
conn->cc_version.pv_major = fs_version.pv_major;
conn->cc_version.pv_minor = fs_version.pv_minor;
conn->cc_lockspace = dlm;
dlm_register_eviction_cb(dlm, &priv->op_eviction_cb);
out_free:
if (rc && conn->cc_private)
kfree(conn->cc_private);
out:
return rc;
}
void ocfs2_setup_hb_callbacks(struct ocfs2_super *osb)
{
o2hb_setup_callback(&osb->osb_hb_down, O2HB_NODE_DOWN_CB,
ocfs2_hb_node_down_cb, osb,
OCFS2_HB_NODE_DOWN_PRI);
o2hb_setup_callback(&osb->osb_hb_up, O2HB_NODE_UP_CB,
ocfs2_hb_node_up_cb, osb, OCFS2_HB_NODE_UP_PRI);
/* Not exactly a heartbeat callback, but leads to essentially
* the same path so we set it up here. */
dlm_setup_eviction_cb(&osb->osb_eviction_cb,
ocfs2_dlm_eviction_cb,
osb);
}