ocfs2/dlm: Dump the dlm state in a debugfs file
This patch dumps the dlm state (dlm_ctxt) into a debugfs file.
Useful for debugging.
Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
diff --git a/fs/ocfs2/dlm/dlmdebug.h b/fs/ocfs2/dlm/dlmdebug.h
index b969595..94cc10a 100644
--- a/fs/ocfs2/dlm/dlmdebug.h
+++ b/fs/ocfs2/dlm/dlmdebug.h
@@ -27,6 +27,19 @@
#ifdef CONFIG_DEBUG_FS
+struct dlm_debug_ctxt {
+ struct kref debug_refcnt;
+ struct dentry *debug_state_dentry;
+};
+
+struct debug_buffer {
+ int len;
+ char *buf;
+};
+
+int dlm_debug_init(struct dlm_ctxt *dlm);
+void dlm_debug_shutdown(struct dlm_ctxt *dlm);
+
int dlm_create_debugfs_subroot(struct dlm_ctxt *dlm);
void dlm_destroy_debugfs_subroot(struct dlm_ctxt *dlm);
@@ -35,6 +48,13 @@
#else
+static int dlm_debug_init(struct dlm_ctxt *dlm)
+{
+ return 0;
+}
+static void dlm_debug_shutdown(struct dlm_ctxt *dlm)
+{
+}
static int dlm_create_debugfs_subroot(struct dlm_ctxt *dlm)
{
return 0;