diff --git a/fs/ocfs2/cluster/masklog.c b/fs/ocfs2/cluster/masklog.c
index bbea7b6..07ac24f 100644
--- a/fs/ocfs2/cluster/masklog.c
+++ b/fs/ocfs2/cluster/masklog.c
@@ -91,7 +91,6 @@
 	define_mask(DLM_THREAD),
 	define_mask(DLM_MASTER),
 	define_mask(DLM_RECOVERY),
-	define_mask(AIO),
 	define_mask(DLM_GLUE),
 	define_mask(VOTE),
 	define_mask(CONN),
diff --git a/fs/ocfs2/cluster/masklog.h b/fs/ocfs2/cluster/masklog.h
index 7a86add..0fe96c2 100644
--- a/fs/ocfs2/cluster/masklog.h
+++ b/fs/ocfs2/cluster/masklog.h
@@ -93,7 +93,6 @@
 #define ML_DLM_THREAD	0x0000000000000400ULL /* dlm domain thread */
 #define ML_DLM_MASTER	0x0000000000000800ULL /* dlm master functions */
 #define ML_DLM_RECOVERY	0x0000000000001000ULL /* dlm master functions */
-#define ML_AIO		0x0000000000002000ULL /* ocfs2 aio read and write */
 #define ML_DLM_GLUE	0x0000000000080000ULL /* ocfs2 dlm glue layer */
 #define ML_VOTE		0x0000000001000000ULL /* ocfs2 node messaging  */
 #define ML_CONN		0x0000000004000000ULL /* net connection management */