1 files changed, 4 insertions, 1 deletions

diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index cc2471094ca5..b75866115c21 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -859,7 +859,10 @@ typedef struct smb_com_lock_req {
         LOCKING_ANDX_RANGE Locks[1];
 } __attribute__((packed)) LOCK_REQ;
 
-
+/* lock type */
+#define CIFS_RDLCK      0
+#define CIFS_WRLCK      1
+#define CIFS_UNLCK      2
 typedef struct cifs_posix_lock {
         __le16  lock_type;  /* 0 = Read, 1 = Write, 2 = Unlock */
         __le16  lock_flags; /* 1 = Wait (only valid for setlock) */