ocfs2/dlm: Trace insert/remove of resource to/from hash

[pandora-kernel.git] / fs / ocfs2 / dlm / dlmdomain.c

diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c
index ce225fb..200d988 100644 (file)
--- a/fs/ocfs2/dlm/dlmdomain.c
+++ b/fs/ocfs2/dlm/dlmdomain.c
@@ -157,16 +157,18 @@ static int dlm_protocol_compare(struct dlm_protocol_version *existing,
 
 static void dlm_unregister_domain_handlers(struct dlm_ctxt *dlm);
 
-void __dlm_unhash_lockres(struct dlm_lock_resource *lockres)
+void __dlm_unhash_lockres(struct dlm_ctxt *dlm, struct dlm_lock_resource *res)
 {
-       if (!hlist_unhashed(&lockres->hash_node)) {
-               hlist_del_init(&lockres->hash_node);
-               dlm_lockres_put(lockres);
-       }
+       if (hlist_unhashed(&res->hash_node))
+               return;
+
+       mlog(0, "%s: Unhash res %.*s\n", dlm->name, res->lockname.len,
+            res->lockname.name);
+       hlist_del_init(&res->hash_node);
+       dlm_lockres_put(res);
 }
 
-void __dlm_insert_lockres(struct dlm_ctxt *dlm,
-                      struct dlm_lock_resource *res)
+void __dlm_insert_lockres(struct dlm_ctxt *dlm, struct dlm_lock_resource *res)
 {
        struct hlist_head *bucket;
        struct qstr *q;
@@ -180,6 +182,9 @@ void __dlm_insert_lockres(struct dlm_ctxt *dlm,
        dlm_lockres_get(res);
 
        hlist_add_head(&res->hash_node, bucket);
+
+       mlog(0, "%s: Hash res %.*s\n", dlm->name, res->lockname.len,
+            res->lockname.name);
 }
 
 struct dlm_lock_resource * __dlm_lookup_lockres_full(struct dlm_ctxt *dlm,