- (trans,(io)->io_obj,bno,len,f,first,tot,mval,nmap,flist)
+ (trans,(io)->io_obj,bno,len,f,first,tot,mval,nmap,flist,delta)
+#define XFS_BUNMAPI(mp, trans,io,bno,len,f,nexts,first,flist,delta,done) \
+ (*(mp)->m_io_ops.xfs_bunmapi_func) \
+ (trans,(io)->io_obj,bno,len,f,nexts,first,flist,delta,done)