38 	struct dnode_of_data dn;  in f2fs_vm_page_mkwrite()  local
49 	set_new_dnode(&dn, inode, NULL, NULL, 0);  in f2fs_vm_page_mkwrite()
50 	err = f2fs_reserve_block(&dn, page->index);  in f2fs_vm_page_mkwrite()
55 	f2fs_put_dnode(&dn);  in f2fs_vm_page_mkwrite()
317 	struct dnode_of_data dn;  in f2fs_seek_block()  local
341 		set_new_dnode(&dn, inode, NULL, NULL, 0);  in f2fs_seek_block()
342 		err = get_dnode_of_data(&dn, pgofs, LOOKUP_NODE_RA);  in f2fs_seek_block()
356 		end_offset = ADDRS_PER_PAGE(dn.node_page, F2FS_I(inode));  in f2fs_seek_block()
359 		for (; dn.ofs_in_node < end_offset;  in f2fs_seek_block()
360 				dn.ofs_in_node++, pgofs++,  in f2fs_seek_block()
363 			blkaddr = datablock_addr(dn.node_page, dn.ofs_in_node);  in f2fs_seek_block()
366 				f2fs_put_dnode(&dn);  in f2fs_seek_block()
370 		f2fs_put_dnode(&dn);  in f2fs_seek_block()
422 int truncate_data_blocks_range(struct dnode_of_data *dn, int count)  in truncate_data_blocks_range()  argument
424 	int nr_free = 0, ofs = dn->ofs_in_node;  in truncate_data_blocks_range()
425 	struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);  in truncate_data_blocks_range()
429 	raw_node = F2FS_NODE(dn->node_page);  in truncate_data_blocks_range()
432 	for (; count > 0; count--, addr++, dn->ofs_in_node++) {  in truncate_data_blocks_range()
437 		dn->data_blkaddr = NULL_ADDR;  in truncate_data_blocks_range()
438 		set_data_blkaddr(dn);  in truncate_data_blocks_range()
439 		f2fs_update_extent_cache(dn);  in truncate_data_blocks_range()
441 		if (dn->ofs_in_node == 0 && IS_INODE(dn->node_page))  in truncate_data_blocks_range()
442 			clear_inode_flag(F2FS_I(dn->inode),  in truncate_data_blocks_range()
447 		dec_valid_block_count(sbi, dn->inode, nr_free);  in truncate_data_blocks_range()
448 		set_page_dirty(dn->node_page);  in truncate_data_blocks_range()
449 		sync_inode_page(dn);  in truncate_data_blocks_range()
451 	dn->ofs_in_node = ofs;  in truncate_data_blocks_range()
453 	trace_f2fs_truncate_data_blocks_range(dn->inode, dn->nid,  in truncate_data_blocks_range()
454 					 dn->ofs_in_node, nr_free);  in truncate_data_blocks_range()
458 void truncate_data_blocks(struct dnode_of_data *dn)  in truncate_data_blocks()  argument
460 	truncate_data_blocks_range(dn, ADDRS_PER_BLOCK);  in truncate_data_blocks()
494 	struct dnode_of_data dn;  in truncate_blocks()  local
521 	set_new_dnode(&dn, inode, ipage, NULL, 0);  in truncate_blocks()
522 	err = get_dnode_of_data(&dn, free_from, LOOKUP_NODE);  in truncate_blocks()
529 	count = ADDRS_PER_PAGE(dn.node_page, F2FS_I(inode));  in truncate_blocks()
531 	count -= dn.ofs_in_node;  in truncate_blocks()
534 	if (dn.ofs_in_node || IS_INODE(dn.node_page)) {  in truncate_blocks()
535 		truncate_data_blocks_range(&dn, count);  in truncate_blocks()
539 	f2fs_put_dnode(&dn);  in truncate_blocks()
695 		struct dnode_of_data dn;  in truncate_hole()  local
697 		set_new_dnode(&dn, inode, NULL, NULL, 0);  in truncate_hole()
698 		err = get_dnode_of_data(&dn, index, LOOKUP_NODE);  in truncate_hole()
705 		if (dn.data_blkaddr != NULL_ADDR)  in truncate_hole()
706 			truncate_data_blocks_range(&dn, 1);  in truncate_hole()
707 		f2fs_put_dnode(&dn);  in truncate_hole()
798 		struct dnode_of_data dn;  in expand_inode_data()  local
803 		set_new_dnode(&dn, inode, NULL, NULL, 0);  in expand_inode_data()
804 		ret = f2fs_reserve_block(&dn, index);  in expand_inode_data()