xfs: add initial DAX support

[deliverable/linux.git] / fs / xfs / xfs_mount.h

diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 8c995a2ccb6f94d01728812e47e361678ce61c22..cd44e88efa533d64be94da2547c6cf4dbbdbdeba 100644 (file)
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -179,6 +179,8 @@ typedef struct xfs_mount {
                                                   allocator */
 #define XFS_MOUNT_NOATTR2      (1ULL << 25)    /* disable use of attr2 format */
 
+#define XFS_MOUNT_DAX          (1ULL << 62)    /* TEST ONLY! */
+
 
 /*
  * Default minimum read and write sizes.