jbd2: add lockdep support

Ported from similar patch for the jbd layer.

Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index 98a2bc5d3e3f..2cbf6fdb1799 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -418,6 +418,10 @@ struct handle_s
         unsigned int    h_sync:         1;      /* sync-on-close */
         unsigned int    h_jdata:        1;      /* force data journaling */
         unsigned int    h_aborted:      1;      /* fatal error on handle */
+
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+        struct lockdep_map      h_lockdep_map;
+#endif
 };