586 			  struct metapath *mp, struct iomap *iomap)  in gfs2_hole_size()  argument
601 	iomap->length = hole_size << inode->i_blkbits;  in gfs2_hole_size()
663 static int gfs2_iomap_alloc(struct inode *inode, struct iomap *iomap,  in gfs2_iomap_alloc()  argument
671 	size_t dblks = iomap->length >> inode->i_blkbits;  in gfs2_iomap_alloc()
767 			iomap->addr = bn << inode->i_blkbits;  in gfs2_iomap_alloc()
768 			iomap->flags |= IOMAP_F_MERGED | IOMAP_F_NEW;  in gfs2_iomap_alloc()
773 	} while (iomap->addr == IOMAP_NULL_ADDR);  in gfs2_iomap_alloc()
775 	iomap->type = IOMAP_MAPPED;  in gfs2_iomap_alloc()
776 	iomap->length = (u64)dblks << inode->i_blkbits;  in gfs2_iomap_alloc()
843 			  unsigned flags, struct iomap *iomap,  in gfs2_iomap_get()  argument
874 			iomap->length = max_size;  in gfs2_iomap_get()
881 					iomap->offset = pos;  in gfs2_iomap_get()
882 					iomap->length = length;  in gfs2_iomap_get()
886 			iomap->length = size;  in gfs2_iomap_get()
888 		iomap->addr = (ip->i_no_addr << inode->i_blkbits) +  in gfs2_iomap_get()
890 		iomap->type = IOMAP_INLINE;  in gfs2_iomap_get()
891 		iomap->inline_data = dibh->b_data + sizeof(struct gfs2_dinode);  in gfs2_iomap_get()
897 	iomap->offset = lblock << inode->i_blkbits;  in gfs2_iomap_get()
900 	iomap->length = len << inode->i_blkbits;  in gfs2_iomap_get()
923 	iomap->addr = be64_to_cpu(*ptr) << inode->i_blkbits;  in gfs2_iomap_get()
924 	iomap->length = len << inode->i_blkbits;  in gfs2_iomap_get()
925 	iomap->type = IOMAP_MAPPED;  in gfs2_iomap_get()
926 	iomap->flags |= IOMAP_F_MERGED;  in gfs2_iomap_get()
928 		iomap->flags |= IOMAP_F_GFS2_BOUNDARY;  in gfs2_iomap_get()
931 	iomap->bdev = inode->i_sb->s_bdev;  in gfs2_iomap_get()
941 			ret = gfs2_hole_size(inode, lblock, len, mp, iomap);  in gfs2_iomap_get()
943 			iomap->length = size - pos;  in gfs2_iomap_get()
952 		if (alloc_size < iomap->length)  in gfs2_iomap_get()
953 			iomap->length = alloc_size;  in gfs2_iomap_get()
956 			ret = gfs2_hole_size(inode, lblock, len, mp, iomap);  in gfs2_iomap_get()
959 	iomap->addr = IOMAP_NULL_ADDR;  in gfs2_iomap_get()
960 	iomap->type = IOMAP_HOLE;  in gfs2_iomap_get()
977 	struct iomap iomap = { };  in gfs2_lblk_to_dblk()  local
982 	ret = gfs2_iomap_get(inode, pos, i_blocksize(inode), 0, &iomap, &mp);  in gfs2_lblk_to_dblk()
985 		*dblock = iomap.addr >> inode->i_blkbits;  in gfs2_lblk_to_dblk()
1031 				   unsigned len, struct iomap *iomap)  in gfs2_iomap_page_prepare()  argument
1043 				 struct iomap *iomap)  in gfs2_iomap_page_done()  argument
1065 				  struct iomap *iomap,  in gfs2_iomap_begin_write()  argument
1076 	if (unstuff || iomap->type == IOMAP_HOLE) {  in gfs2_iomap_begin_write()
1082 		gfs2_write_calc_reserv(ip, iomap->length, &data_blocks,  in gfs2_iomap_begin_write()
1103 				       iomap->length >> inode->i_blkbits);  in gfs2_iomap_begin_write()
1112 			ret = gfs2_iomap_get(inode, iomap->offset,  in gfs2_iomap_begin_write()
1113 					     iomap->length, flags, iomap, mp);  in gfs2_iomap_begin_write()
1118 		if (iomap->type == IOMAP_HOLE) {  in gfs2_iomap_begin_write()
1119 			ret = gfs2_iomap_alloc(inode, iomap, mp);  in gfs2_iomap_begin_write()
1123 				punch_hole(ip, iomap->offset, iomap->length);  in gfs2_iomap_begin_write()
1136 		iomap->page_ops = &gfs2_iomap_page_ops;  in gfs2_iomap_begin_write()
1154 			    unsigned flags, struct iomap *iomap,  in gfs2_iomap_begin()  argument
1155 			    struct iomap *srcmap)  in gfs2_iomap_begin()
1162 		iomap->flags |= IOMAP_F_BUFFER_HEAD;  in gfs2_iomap_begin()
1171 	ret = gfs2_iomap_get(inode, pos, length, flags, iomap, &mp);  in gfs2_iomap_begin()
1182 			if (iomap->type != IOMAP_MAPPED)  in gfs2_iomap_begin()
1188 		if (iomap->type == IOMAP_HOLE)  in gfs2_iomap_begin()
1195 	ret = gfs2_iomap_begin_write(inode, pos, length, flags, iomap, &mp);  in gfs2_iomap_begin()
1202 	trace_gfs2_iomap_end(ip, iomap, ret);  in gfs2_iomap_begin()
1207 			  ssize_t written, unsigned flags, struct iomap *iomap)  in gfs2_iomap_end()  argument
1218 		 if (iomap->type == IOMAP_HOLE)  in gfs2_iomap_end()
1233 	if (length != written && (iomap->flags & IOMAP_F_NEW)) {  in gfs2_iomap_end()
1251 	if (iomap->flags & IOMAP_F_SIZE_CHANGED)  in gfs2_iomap_end()
1294 	struct iomap iomap = { };  in gfs2_block_map()  local
1303 	ret = gfs2_iomap_get(inode, pos, length, flags, &iomap, &mp);  in gfs2_block_map()
1304 	if (create && !ret && iomap.type == IOMAP_HOLE)  in gfs2_block_map()
1305 		ret = gfs2_iomap_alloc(inode, &iomap, &mp);  in gfs2_block_map()
1310 	if (iomap.length > bh_map->b_size) {  in gfs2_block_map()
1311 		iomap.length = bh_map->b_size;  in gfs2_block_map()
1312 		iomap.flags &= ~IOMAP_F_GFS2_BOUNDARY;  in gfs2_block_map()
1314 	if (iomap.addr != IOMAP_NULL_ADDR)  in gfs2_block_map()
1315 		map_bh(bh_map, inode->i_sb, iomap.addr >> inode->i_blkbits);  in gfs2_block_map()
1316 	bh_map->b_size = iomap.length;  in gfs2_block_map()
1317 	if (iomap.flags & IOMAP_F_GFS2_BOUNDARY)  in gfs2_block_map()
1319 	if (iomap.flags & IOMAP_F_NEW)  in gfs2_block_map()
1465 			 struct iomap *iomap)  in gfs2_iomap_get_alloc()  argument
1470 	ret = gfs2_iomap_get(inode, pos, length, IOMAP_WRITE, iomap, &mp);  in gfs2_iomap_get_alloc()
1471 	if (!ret && iomap->type == IOMAP_HOLE)  in gfs2_iomap_get_alloc()
1472 		ret = gfs2_iomap_alloc(inode, iomap, &mp);  in gfs2_iomap_get_alloc()
2528 	if (offset >= wpc->iomap.offset &&  in gfs2_map_blocks()
2529 	    offset < wpc->iomap.offset + wpc->iomap.length)  in gfs2_map_blocks()
2532 	memset(&wpc->iomap, 0, sizeof(wpc->iomap));  in gfs2_map_blocks()
2533 	ret = gfs2_iomap_get(inode, offset, INT_MAX, 0, &wpc->iomap, &mp);  in gfs2_map_blocks()