1 files changed, 5 insertions, 1 deletions

diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h
index cecd094404cc..cdef87db5262 100644
--- a/fs/xfs/libxfs/xfs_bmap.h
+++ b/fs/xfs/libxfs/xfs_bmap.h
@@ -110,6 +110,9 @@ struct xfs_extent_free_item
 /* Map something in the CoW fork. */
 #define XFS_BMAPI_COWFORK       0x200
 
+/* Only convert delalloc space, don't allocate entirely new extents */
+#define XFS_BMAPI_DELALLOC      0x400
+
 #define XFS_BMAPI_FLAGS \
         { XFS_BMAPI_ENTIRE,     "ENTIRE" }, \
         { XFS_BMAPI_METADATA,   "METADATA" }, \
@@ -120,7 +123,8 @@ struct xfs_extent_free_item
         { XFS_BMAPI_CONVERT,    "CONVERT" }, \
         { XFS_BMAPI_ZERO,       "ZERO" }, \
         { XFS_BMAPI_REMAP,      "REMAP" }, \
-        { XFS_BMAPI_COWFORK,    "COWFORK" }
+        { XFS_BMAPI_COWFORK,    "COWFORK" }, \
+        { XFS_BMAPI_DELALLOC,   "DELALLOC" }
 
 
 static inline int xfs_bmapi_aflag(int w)