285 	struct xfs_bmbt_irec	*imap,  in xfs_map_blocks()  argument
318 				imap, &nimaps, bmapi_flags);  in xfs_map_blocks()
325 	    (!nimaps || isnullstartblock(imap->br_startblock))) {  in xfs_map_blocks()
326 		error = xfs_iomap_write_allocate(ip, offset, imap);  in xfs_map_blocks()
328 			trace_xfs_map_blocks_alloc(ip, offset, count, type, imap);  in xfs_map_blocks()
335 		ASSERT(imap->br_startblock != HOLESTARTBLOCK);  in xfs_map_blocks()
336 		ASSERT(imap->br_startblock != DELAYSTARTBLOCK);  in xfs_map_blocks()
340 		trace_xfs_map_blocks_found(ip, offset, count, type, imap);  in xfs_map_blocks()
347 	struct xfs_bmbt_irec	*imap,  in xfs_imap_valid()  argument
352 	return offset >= imap->br_startoff &&  in xfs_imap_valid()
353 		offset < imap->br_startoff + imap->br_blockcount;  in xfs_imap_valid()
602 	struct xfs_bmbt_irec	*imap,  in xfs_map_buffer()  argument
607 	xfs_off_t		iomap_offset = XFS_FSB_TO_B(m, imap->br_startoff);  in xfs_map_buffer()
608 	xfs_daddr_t		iomap_bn = xfs_fsb_to_db(XFS_I(inode), imap->br_startblock);  in xfs_map_buffer()
610 	ASSERT(imap->br_startblock != HOLESTARTBLOCK);  in xfs_map_buffer()
611 	ASSERT(imap->br_startblock != DELAYSTARTBLOCK);  in xfs_map_buffer()
626 	struct xfs_bmbt_irec	*imap,  in xfs_map_at_offset()  argument
629 	ASSERT(imap->br_startblock != HOLESTARTBLOCK);  in xfs_map_at_offset()
630 	ASSERT(imap->br_startblock != DELAYSTARTBLOCK);  in xfs_map_at_offset()
632 	xfs_map_buffer(inode, bh, imap, offset);  in xfs_map_at_offset()
692 	struct xfs_bmbt_irec	*imap,  in xfs_convert_page()  argument
748 	if (!xfs_imap_valid(inode, imap, end_offset))  in xfs_convert_page()
790 			ASSERT(xfs_imap_valid(inode, imap, offset));  in xfs_convert_page()
794 				xfs_map_at_offset(inode, bh, imap, offset);  in xfs_convert_page()
831 	struct xfs_bmbt_irec	*imap,  in xfs_cluster_write()  argument
848 					imap, ioendp, wbc);  in xfs_cluster_write()
949 	struct xfs_bmbt_irec	imap;  in xfs_vm_writepage()  local
1109 			imap_valid = xfs_imap_valid(inode, &imap, offset);  in xfs_vm_writepage()
1120 			err = xfs_map_blocks(inode, offset, &imap, type,  in xfs_vm_writepage()
1124 			imap_valid = xfs_imap_valid(inode, &imap, offset);  in xfs_vm_writepage()
1129 				xfs_map_at_offset(inode, bh, &imap, offset);  in xfs_vm_writepage()
1159 		end_index = imap.br_startoff + imap.br_blockcount;  in xfs_vm_writepage()
1171 		xfs_cluster_write(inode, page->index + 1, &imap, &ioend,  in xfs_vm_writepage()
1281 	struct xfs_bmbt_irec	*imap,  in xfs_map_direct()  argument
1289 	if (ISUNWRITTEN(imap))  in xfs_map_direct()
1294 	trace_xfs_gbmap_direct(XFS_I(inode), offset, size, type, imap);  in xfs_map_direct()
1299 					    imap);  in xfs_map_direct()
1315 					      imap);  in xfs_map_direct()
1327 					   imap);  in xfs_map_direct()
1330 					    imap);  in xfs_map_direct()
1350 	struct xfs_bmbt_irec	*imap,  in xfs_map_trim_size()  argument
1356 	mapping_size = imap->br_startoff + imap->br_blockcount - iblock;  in xfs_map_trim_size()
1388 	struct xfs_bmbt_irec	imap;  in __xfs_get_blocks()  local
1425 				&imap, &nimaps, XFS_BMAPI_ENTIRE);  in __xfs_get_blocks()
1432 	     (imap.br_startblock == HOLESTARTBLOCK ||  in __xfs_get_blocks()
1433 	      imap.br_startblock == DELAYSTARTBLOCK) ||  in __xfs_get_blocks()
1434 	     (IS_DAX(inode) && ISUNWRITTEN(&imap)))) {  in __xfs_get_blocks()
1444 						       &imap, nimaps);  in __xfs_get_blocks()
1458 			if (nimaps && imap.br_startblock == HOLESTARTBLOCK)  in __xfs_get_blocks()
1460 			error = xfs_iomap_write_delay(ip, offset, size, &imap);  in __xfs_get_blocks()
1467 				ISUNWRITTEN(&imap) ? XFS_IO_UNWRITTEN  in __xfs_get_blocks()
1468 						   : XFS_IO_DELALLOC, &imap);  in __xfs_get_blocks()
1471 				ISUNWRITTEN(&imap) ? XFS_IO_UNWRITTEN  in __xfs_get_blocks()
1472 						   : XFS_IO_OVERWRITE, &imap);  in __xfs_get_blocks()
1480 		ASSERT(!ISUNWRITTEN(&imap));  in __xfs_get_blocks()
1488 				  &imap, offset, size);  in __xfs_get_blocks()
1494 	if (imap.br_startblock != HOLESTARTBLOCK &&  in __xfs_get_blocks()
1495 	    imap.br_startblock != DELAYSTARTBLOCK &&  in __xfs_get_blocks()
1496 	    (create || !ISUNWRITTEN(&imap))) {  in __xfs_get_blocks()
1497 		xfs_map_buffer(inode, bh_result, &imap, offset);  in __xfs_get_blocks()
1498 		if (ISUNWRITTEN(&imap))  in __xfs_get_blocks()
1502 			xfs_map_direct(inode, bh_result, &imap, offset,  in __xfs_get_blocks()
1524 	     (new || ISUNWRITTEN(&imap))))  in __xfs_get_blocks()
1527 	if (imap.br_startblock == DELAYSTARTBLOCK) {  in __xfs_get_blocks()