480 int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode)  in get_dnode_of_data()  argument
482 	struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);  in get_dnode_of_data()
491 	level = get_node_path(F2FS_I(dn->inode), index, offset, noffset);  in get_dnode_of_data()
493 	nids[0] = dn->inode->i_ino;  in get_dnode_of_data()
494 	npage[0] = dn->inode_page;  in get_dnode_of_data()
503 	if (f2fs_has_inline_data(dn->inode) && index) {  in get_dnode_of_data()
512 	dn->inode_page = npage[0];  in get_dnode_of_data()
513 	dn->inode_page_locked = true;  in get_dnode_of_data()
526 			dn->nid = nids[i];  in get_dnode_of_data()
527 			npage[i] = new_node_page(dn, noffset[i], NULL);  in get_dnode_of_data()
546 			dn->inode_page_locked = false;  in get_dnode_of_data()
565 	dn->nid = nids[level];  in get_dnode_of_data()
566 	dn->ofs_in_node = offset[level];  in get_dnode_of_data()
567 	dn->node_page = npage[level];  in get_dnode_of_data()
568 	dn->data_blkaddr = datablock_addr(dn->node_page, dn->ofs_in_node);  in get_dnode_of_data()
576 	dn->inode_page = NULL;  in get_dnode_of_data()
577 	dn->node_page = NULL;  in get_dnode_of_data()
581 static void truncate_node(struct dnode_of_data *dn)  in truncate_node()  argument
583 	struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);  in truncate_node()
586 	get_node_info(sbi, dn->nid, &ni);  in truncate_node()
587 	if (dn->inode->i_blocks == 0) {  in truncate_node()
595 	dec_valid_node_count(sbi, dn->inode);  in truncate_node()
598 	if (dn->nid == dn->inode->i_ino) {  in truncate_node()
599 		remove_orphan_inode(sbi, dn->nid);  in truncate_node()
602 		sync_inode_page(dn);  in truncate_node()
605 	clear_node_page_dirty(dn->node_page);  in truncate_node()
608 	f2fs_put_page(dn->node_page, 1);  in truncate_node()
611 			dn->node_page->index, dn->node_page->index);  in truncate_node()
613 	dn->node_page = NULL;  in truncate_node()
614 	trace_f2fs_truncate_node(dn->inode, dn->nid, ni.blk_addr);  in truncate_node()
617 static int truncate_dnode(struct dnode_of_data *dn)  in truncate_dnode()  argument
621 	if (dn->nid == 0)  in truncate_dnode()
625 	page = get_node_page(F2FS_I_SB(dn->inode), dn->nid);  in truncate_dnode()
632 	dn->node_page = page;  in truncate_dnode()
633 	dn->ofs_in_node = 0;  in truncate_dnode()
634 	truncate_data_blocks(dn);  in truncate_dnode()
635 	truncate_node(dn);  in truncate_dnode()
639 static int truncate_nodes(struct dnode_of_data *dn, unsigned int nofs,  in truncate_nodes()  argument
642 	struct dnode_of_data rdn = *dn;  in truncate_nodes()
650 	if (dn->nid == 0)  in truncate_nodes()
653 	trace_f2fs_truncate_nodes_enter(dn->inode, dn->nid, dn->data_blkaddr);  in truncate_nodes()
655 	page = get_node_page(F2FS_I_SB(dn->inode), dn->nid);  in truncate_nodes()
657 		trace_f2fs_truncate_nodes_exit(dn->inode, PTR_ERR(page));  in truncate_nodes()
695 		dn->node_page = page;  in truncate_nodes()
696 		truncate_node(dn);  in truncate_nodes()
701 	trace_f2fs_truncate_nodes_exit(dn->inode, freed);  in truncate_nodes()
706 	trace_f2fs_truncate_nodes_exit(dn->inode, ret);  in truncate_nodes()
710 static int truncate_partial_nodes(struct dnode_of_data *dn,  in truncate_partial_nodes()  argument
727 		pages[i] = get_node_page(F2FS_I_SB(dn->inode), nid[i]);  in truncate_partial_nodes()
741 		dn->nid = child_nid;  in truncate_partial_nodes()
742 		err = truncate_dnode(dn);  in truncate_partial_nodes()
749 		dn->node_page = pages[idx];  in truncate_partial_nodes()
750 		dn->nid = nid[idx];  in truncate_partial_nodes()
751 		truncate_node(dn);  in truncate_partial_nodes()
762 	trace_f2fs_truncate_partial_nodes(dn->inode, nid, depth, err);  in truncate_partial_nodes()
777 	struct dnode_of_data dn;  in truncate_inode_blocks()  local
790 	set_new_dnode(&dn, inode, page, NULL, 0);  in truncate_inode_blocks()
803 		err = truncate_partial_nodes(&dn, ri, offset, level);  in truncate_inode_blocks()
812 		err = truncate_partial_nodes(&dn, ri, offset, level);  in truncate_inode_blocks()
822 		dn.nid = le32_to_cpu(ri->i_nid[offset[0] - NODE_DIR1_BLOCK]);  in truncate_inode_blocks()
826 			err = truncate_dnode(&dn);  in truncate_inode_blocks()
831 			err = truncate_nodes(&dn, nofs, offset[1], 2);  in truncate_inode_blocks()
835 			err = truncate_nodes(&dn, nofs, offset[1], 3);  in truncate_inode_blocks()
870 	struct dnode_of_data dn;  in truncate_xattr_node()  local
885 	set_new_dnode(&dn, inode, page, npage, nid);  in truncate_xattr_node()
888 		dn.inode_page_locked = true;  in truncate_xattr_node()
889 	truncate_node(&dn);  in truncate_xattr_node()
899 	struct dnode_of_data dn;  in remove_inode_page()  local
901 	set_new_dnode(&dn, inode, NULL, NULL, inode->i_ino);  in remove_inode_page()
902 	if (get_dnode_of_data(&dn, 0, LOOKUP_NODE))  in remove_inode_page()
905 	if (truncate_xattr_node(inode, dn.inode_page)) {  in remove_inode_page()
906 		f2fs_put_dnode(&dn);  in remove_inode_page()
913 		truncate_data_blocks_range(&dn, 1);  in remove_inode_page()
920 	truncate_node(&dn);  in remove_inode_page()
925 	struct dnode_of_data dn;  in new_inode_page()  local
928 	set_new_dnode(&dn, inode, NULL, NULL, inode->i_ino);  in new_inode_page()
931 	return new_node_page(&dn, 0, NULL);  in new_inode_page()
934 struct page *new_node_page(struct dnode_of_data *dn,  in new_node_page()  argument
937 	struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);  in new_node_page()
942 	if (unlikely(is_inode_flag_set(F2FS_I(dn->inode), FI_NO_ALLOC)))  in new_node_page()
945 	page = grab_cache_page(NODE_MAPPING(sbi), dn->nid);  in new_node_page()
949 	if (unlikely(!inc_valid_node_count(sbi, dn->inode))) {  in new_node_page()
954 	get_node_info(sbi, dn->nid, &old_ni);  in new_node_page()
959 	new_ni.ino = dn->inode->i_ino;  in new_node_page()
963 	fill_node_footer(page, dn->nid, dn->inode->i_ino, ofs, true);  in new_node_page()
964 	set_cold_node(dn->inode, page);  in new_node_page()
969 		F2FS_I(dn->inode)->i_xattr_nid = dn->nid;  in new_node_page()
971 	dn->node_page = page;  in new_node_page()
973 		update_inode(dn->inode, ipage);  in new_node_page()
975 		sync_inode_page(dn);  in new_node_page()
1124 void sync_inode_page(struct dnode_of_data *dn)  in sync_inode_page()  argument
1126 	if (IS_INODE(dn->node_page) || dn->inode_page == dn->node_page) {  in sync_inode_page()
1127 		update_inode(dn->inode, dn->node_page);  in sync_inode_page()
1128 	} else if (dn->inode_page) {  in sync_inode_page()
1129 		if (!dn->inode_page_locked)  in sync_inode_page()
1130 			lock_page(dn->inode_page);  in sync_inode_page()
1131 		update_inode(dn->inode, dn->inode_page);  in sync_inode_page()
1132 		if (!dn->inode_page_locked)  in sync_inode_page()
1133 			unlock_page(dn->inode_page);  in sync_inode_page()
1135 		update_inode_page(dn->inode);  in sync_inode_page()