ocfs2/dlm: Trace insert/remove of resource to/from hash
Add mlog to trace adding and removing the resource from/to the hash table.
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h
index 4a5d580..b1748ac 100644
--- a/fs/ocfs2/dlm/dlmcommon.h
+++ b/fs/ocfs2/dlm/dlmcommon.h
@@ -877,9 +877,8 @@
kref_get(&res->refs);
}
void dlm_lockres_put(struct dlm_lock_resource *res);
-void __dlm_unhash_lockres(struct dlm_lock_resource *res);
-void __dlm_insert_lockres(struct dlm_ctxt *dlm,
- struct dlm_lock_resource *res);
+void __dlm_unhash_lockres(struct dlm_ctxt *dlm, struct dlm_lock_resource *res);
+void __dlm_insert_lockres(struct dlm_ctxt *dlm, struct dlm_lock_resource *res);
struct dlm_lock_resource * __dlm_lookup_lockres_full(struct dlm_ctxt *dlm,
const char *name,
unsigned int len,
diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c
index ce225fb..200d988 100644
--- a/fs/ocfs2/dlm/dlmdomain.c
+++ b/fs/ocfs2/dlm/dlmdomain.c
@@ -157,16 +157,18 @@
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 @@
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,
diff --git a/fs/ocfs2/dlm/dlmthread.c b/fs/ocfs2/dlm/dlmthread.c
index 46faac2..4eff65e 100644
--- a/fs/ocfs2/dlm/dlmthread.c
+++ b/fs/ocfs2/dlm/dlmthread.c
@@ -207,7 +207,7 @@
BUG();
}
- __dlm_unhash_lockres(res);
+ __dlm_unhash_lockres(dlm, res);
/* lockres is not in the hash now. drop the flag and wake up
* any processes waiting in dlm_get_lock_resource. */
