ocfs2: wait for recovery when starting lock mastery
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c
index c699a45..b03feca 100644
--- a/fs/ocfs2/dlm/dlmrecovery.c
+++ b/fs/ocfs2/dlm/dlmrecovery.c
@@ -343,6 +343,18 @@
return dead;
}
+/* returns true if node is no longer in the domain
+ * could be dead or just not joined */
+int dlm_is_node_recovered(struct dlm_ctxt *dlm, u8 node)
+{
+ int recovered;
+ spin_lock(&dlm->spinlock);
+ recovered = !test_bit(node, dlm->recovery_map);
+ spin_unlock(&dlm->spinlock);
+ return recovered;
+}
+
+
int dlm_wait_for_node_death(struct dlm_ctxt *dlm, u8 node, int timeout)
{
if (timeout) {
@@ -361,6 +373,24 @@
return 0;
}
+int dlm_wait_for_node_recovery(struct dlm_ctxt *dlm, u8 node, int timeout)
+{
+ if (timeout) {
+ mlog(0, "%s: waiting %dms for notification of "
+ "recovery of node %u\n", dlm->name, timeout, node);
+ wait_event_timeout(dlm->dlm_reco_thread_wq,
+ dlm_is_node_recovered(dlm, node),
+ msecs_to_jiffies(timeout));
+ } else {
+ mlog(0, "%s: waiting indefinitely for notification "
+ "of recovery of node %u\n", dlm->name, node);
+ wait_event(dlm->dlm_reco_thread_wq,
+ dlm_is_node_recovered(dlm, node));
+ }
+ /* for now, return 0 */
+ return 0;
+}
+
/* callers of the top-level api calls (dlmlock/dlmunlock) should
* block on the dlm->reco.event when recovery is in progress.
* the dlm recovery thread will set this state when it begins