BMV_IF_PREALLOC  5805 fs/xfs/xfs_bmap.c 	sh_unwritten = (interface & BMV_IF_PREALLOC) != 0;
BMV_IF_PREALLOC   116 fs/xfs/xfs_fs.h #define BMV_IF_VALID	(BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC)