40 	struct dnode_of_data dn;  in f2fs_vm_page_mkwrite()  local
51 	set_new_dnode(&dn, inode, NULL, NULL, 0);  in f2fs_vm_page_mkwrite()
52 	err = f2fs_reserve_block(&dn, page->index);  in f2fs_vm_page_mkwrite()
57 	f2fs_put_dnode(&dn);  in f2fs_vm_page_mkwrite()
93 		f2fs_wait_on_encrypted_page_writeback(sbi, dn.data_blkaddr);  in f2fs_vm_page_mkwrite()
329 	struct dnode_of_data dn;  in f2fs_seek_block()  local
353 		set_new_dnode(&dn, inode, NULL, NULL, 0);  in f2fs_seek_block()
354 		err = get_dnode_of_data(&dn, pgofs, LOOKUP_NODE_RA);  in f2fs_seek_block()
368 		end_offset = ADDRS_PER_PAGE(dn.node_page, F2FS_I(inode));  in f2fs_seek_block()
371 		for (; dn.ofs_in_node < end_offset;  in f2fs_seek_block()
372 				dn.ofs_in_node++, pgofs++,  in f2fs_seek_block()
375 			blkaddr = datablock_addr(dn.node_page, dn.ofs_in_node);  in f2fs_seek_block()
378 				f2fs_put_dnode(&dn);  in f2fs_seek_block()
382 		f2fs_put_dnode(&dn);  in f2fs_seek_block()
452 int truncate_data_blocks_range(struct dnode_of_data *dn, int count)  in truncate_data_blocks_range()  argument
454 	struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);  in truncate_data_blocks_range()
456 	int nr_free = 0, ofs = dn->ofs_in_node, len = count;  in truncate_data_blocks_range()
459 	raw_node = F2FS_NODE(dn->node_page);  in truncate_data_blocks_range()
462 	for (; count > 0; count--, addr++, dn->ofs_in_node++) {  in truncate_data_blocks_range()
467 		dn->data_blkaddr = NULL_ADDR;  in truncate_data_blocks_range()
468 		set_data_blkaddr(dn);  in truncate_data_blocks_range()
470 		if (dn->ofs_in_node == 0 && IS_INODE(dn->node_page))  in truncate_data_blocks_range()
471 			clear_inode_flag(F2FS_I(dn->inode),  in truncate_data_blocks_range()
482 		fofs = start_bidx_of_node(ofs_of_node(dn->node_page),  in truncate_data_blocks_range()
483 						F2FS_I(dn->inode)) + ofs;  in truncate_data_blocks_range()
484 		f2fs_update_extent_cache_range(dn, fofs, 0, len);  in truncate_data_blocks_range()
485 		dec_valid_block_count(sbi, dn->inode, nr_free);  in truncate_data_blocks_range()
486 		set_page_dirty(dn->node_page);  in truncate_data_blocks_range()
487 		sync_inode_page(dn);  in truncate_data_blocks_range()
489 	dn->ofs_in_node = ofs;  in truncate_data_blocks_range()
491 	trace_f2fs_truncate_data_blocks_range(dn->inode, dn->nid,  in truncate_data_blocks_range()
492 					 dn->ofs_in_node, nr_free);  in truncate_data_blocks_range()
496 void truncate_data_blocks(struct dnode_of_data *dn)  in truncate_data_blocks()  argument
498 	truncate_data_blocks_range(dn, ADDRS_PER_BLOCK);  in truncate_data_blocks()
536 	struct dnode_of_data dn;  in truncate_blocks()  local
563 	set_new_dnode(&dn, inode, ipage, NULL, 0);  in truncate_blocks()
564 	err = get_dnode_of_data(&dn, free_from, LOOKUP_NODE);  in truncate_blocks()
571 	count = ADDRS_PER_PAGE(dn.node_page, F2FS_I(inode));  in truncate_blocks()
573 	count -= dn.ofs_in_node;  in truncate_blocks()
576 	if (dn.ofs_in_node || IS_INODE(dn.node_page)) {  in truncate_blocks()
577 		truncate_data_blocks_range(&dn, count);  in truncate_blocks()
581 	f2fs_put_dnode(&dn);  in truncate_blocks()
751 		struct dnode_of_data dn;  in truncate_hole()  local
754 		set_new_dnode(&dn, inode, NULL, NULL, 0);  in truncate_hole()
755 		err = get_dnode_of_data(&dn, pg_start, LOOKUP_NODE);  in truncate_hole()
764 		end_offset = ADDRS_PER_PAGE(dn.node_page, F2FS_I(inode));  in truncate_hole()
765 		count = min(end_offset - dn.ofs_in_node, pg_end - pg_start);  in truncate_hole()
769 		truncate_data_blocks_range(&dn, count);  in truncate_hole()
770 		f2fs_put_dnode(&dn);  in truncate_hole()
838 	struct dnode_of_data dn;  in __exchange_data_block()  local
843 	set_new_dnode(&dn, inode, NULL, NULL, 0);  in __exchange_data_block()
844 	ret = get_dnode_of_data(&dn, src, LOOKUP_NODE_RA);  in __exchange_data_block()
850 		new_addr = dn.data_blkaddr;  in __exchange_data_block()
852 			dn.data_blkaddr = NULL_ADDR;  in __exchange_data_block()
854 			set_data_blkaddr(&dn);  in __exchange_data_block()
855 			f2fs_update_extent_cache(&dn);  in __exchange_data_block()
858 		f2fs_put_dnode(&dn);  in __exchange_data_block()
873 		set_new_dnode(&dn, inode, ipage, NULL, 0);  in __exchange_data_block()
874 		ret = f2fs_reserve_block(&dn, dst);  in __exchange_data_block()
878 		truncate_data_blocks_range(&dn, 1);  in __exchange_data_block()
880 		get_node_info(sbi, dn.nid, &ni);  in __exchange_data_block()
881 		f2fs_replace_block(sbi, &dn, dn.data_blkaddr, new_addr,  in __exchange_data_block()
883 		f2fs_put_dnode(&dn);  in __exchange_data_block()
905 	if (!get_dnode_of_data(&dn, src, LOOKUP_NODE)) {  in __exchange_data_block()
906 		dn.data_blkaddr = new_addr;  in __exchange_data_block()
907 		set_data_blkaddr(&dn);  in __exchange_data_block()
908 		f2fs_update_extent_cache(&dn);  in __exchange_data_block()
909 		f2fs_put_dnode(&dn);  in __exchange_data_block()
1035 			struct dnode_of_data dn;  in f2fs_zero_range()  local
1047 			set_new_dnode(&dn, inode, ipage, NULL, 0);  in f2fs_zero_range()
1048 			ret = f2fs_reserve_block(&dn, index);  in f2fs_zero_range()
1054 			if (dn.data_blkaddr != NEW_ADDR) {  in f2fs_zero_range()
1055 				invalidate_blocks(sbi, dn.data_blkaddr);  in f2fs_zero_range()
1057 				dn.data_blkaddr = NEW_ADDR;  in f2fs_zero_range()
1058 				set_data_blkaddr(&dn);  in f2fs_zero_range()
1060 				dn.data_blkaddr = NULL_ADDR;  in f2fs_zero_range()
1061 				f2fs_update_extent_cache(&dn);  in f2fs_zero_range()
1063 			f2fs_put_dnode(&dn);  in f2fs_zero_range()
1178 		struct dnode_of_data dn;  in expand_inode_data()  local
1183 		set_new_dnode(&dn, inode, NULL, NULL, 0);  in expand_inode_data()
1184 		ret = f2fs_reserve_block(&dn, index);  in expand_inode_data()