488 int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode)  in get_dnode_of_data()  argument
490 	struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);  in get_dnode_of_data()
499 	level = get_node_path(F2FS_I(dn->inode), index, offset, noffset);  in get_dnode_of_data()
501 	nids[0] = dn->inode->i_ino;  in get_dnode_of_data()
502 	npage[0] = dn->inode_page;  in get_dnode_of_data()
511 	if (f2fs_has_inline_data(dn->inode) && index) {  in get_dnode_of_data()
520 	dn->inode_page = npage[0];  in get_dnode_of_data()
521 	dn->inode_page_locked = true;  in get_dnode_of_data()
534 			dn->nid = nids[i];  in get_dnode_of_data()
535 			npage[i] = new_node_page(dn, noffset[i], NULL);  in get_dnode_of_data()
554 			dn->inode_page_locked = false;  in get_dnode_of_data()
573 	dn->nid = nids[level];  in get_dnode_of_data()
574 	dn->ofs_in_node = offset[level];  in get_dnode_of_data()
575 	dn->node_page = npage[level];  in get_dnode_of_data()
576 	dn->data_blkaddr = datablock_addr(dn->node_page, dn->ofs_in_node);  in get_dnode_of_data()
584 	dn->inode_page = NULL;  in get_dnode_of_data()
585 	dn->node_page = NULL;  in get_dnode_of_data()
589 static void truncate_node(struct dnode_of_data *dn)  in truncate_node()  argument
591 	struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);  in truncate_node()
594 	get_node_info(sbi, dn->nid, &ni);  in truncate_node()
595 	if (dn->inode->i_blocks == 0) {  in truncate_node()
603 	dec_valid_node_count(sbi, dn->inode);  in truncate_node()
606 	if (dn->nid == dn->inode->i_ino) {  in truncate_node()
607 		remove_orphan_inode(sbi, dn->nid);  in truncate_node()
610 		sync_inode_page(dn);  in truncate_node()
613 	clear_node_page_dirty(dn->node_page);  in truncate_node()
616 	f2fs_put_page(dn->node_page, 1);  in truncate_node()
619 			dn->node_page->index, dn->node_page->index);  in truncate_node()
621 	dn->node_page = NULL;  in truncate_node()
622 	trace_f2fs_truncate_node(dn->inode, dn->nid, ni.blk_addr);  in truncate_node()
625 static int truncate_dnode(struct dnode_of_data *dn)  in truncate_dnode()  argument
629 	if (dn->nid == 0)  in truncate_dnode()
633 	page = get_node_page(F2FS_I_SB(dn->inode), dn->nid);  in truncate_dnode()
640 	dn->node_page = page;  in truncate_dnode()
641 	dn->ofs_in_node = 0;  in truncate_dnode()
642 	truncate_data_blocks(dn);  in truncate_dnode()
643 	truncate_node(dn);  in truncate_dnode()
647 static int truncate_nodes(struct dnode_of_data *dn, unsigned int nofs,  in truncate_nodes()  argument
650 	struct dnode_of_data rdn = *dn;  in truncate_nodes()
658 	if (dn->nid == 0)  in truncate_nodes()
661 	trace_f2fs_truncate_nodes_enter(dn->inode, dn->nid, dn->data_blkaddr);  in truncate_nodes()
663 	page = get_node_page(F2FS_I_SB(dn->inode), dn->nid);  in truncate_nodes()
665 		trace_f2fs_truncate_nodes_exit(dn->inode, PTR_ERR(page));  in truncate_nodes()
703 		dn->node_page = page;  in truncate_nodes()
704 		truncate_node(dn);  in truncate_nodes()
709 	trace_f2fs_truncate_nodes_exit(dn->inode, freed);  in truncate_nodes()
714 	trace_f2fs_truncate_nodes_exit(dn->inode, ret);  in truncate_nodes()
718 static int truncate_partial_nodes(struct dnode_of_data *dn,  in truncate_partial_nodes()  argument
735 		pages[i] = get_node_page(F2FS_I_SB(dn->inode), nid[i]);  in truncate_partial_nodes()
749 		dn->nid = child_nid;  in truncate_partial_nodes()
750 		err = truncate_dnode(dn);  in truncate_partial_nodes()
757 		dn->node_page = pages[idx];  in truncate_partial_nodes()
758 		dn->nid = nid[idx];  in truncate_partial_nodes()
759 		truncate_node(dn);  in truncate_partial_nodes()
770 	trace_f2fs_truncate_partial_nodes(dn->inode, nid, depth, err);  in truncate_partial_nodes()
785 	struct dnode_of_data dn;  in truncate_inode_blocks()  local
798 	set_new_dnode(&dn, inode, page, NULL, 0);  in truncate_inode_blocks()
811 		err = truncate_partial_nodes(&dn, ri, offset, level);  in truncate_inode_blocks()
820 		err = truncate_partial_nodes(&dn, ri, offset, level);  in truncate_inode_blocks()
830 		dn.nid = le32_to_cpu(ri->i_nid[offset[0] - NODE_DIR1_BLOCK]);  in truncate_inode_blocks()
834 			err = truncate_dnode(&dn);  in truncate_inode_blocks()
839 			err = truncate_nodes(&dn, nofs, offset[1], 2);  in truncate_inode_blocks()
843 			err = truncate_nodes(&dn, nofs, offset[1], 3);  in truncate_inode_blocks()
878 	struct dnode_of_data dn;  in truncate_xattr_node()  local
893 	set_new_dnode(&dn, inode, page, npage, nid);  in truncate_xattr_node()
896 		dn.inode_page_locked = true;  in truncate_xattr_node()
897 	truncate_node(&dn);  in truncate_xattr_node()
907 	struct dnode_of_data dn;  in remove_inode_page()  local
910 	set_new_dnode(&dn, inode, NULL, NULL, inode->i_ino);  in remove_inode_page()
911 	err = get_dnode_of_data(&dn, 0, LOOKUP_NODE);  in remove_inode_page()
915 	err = truncate_xattr_node(inode, dn.inode_page);  in remove_inode_page()
917 		f2fs_put_dnode(&dn);  in remove_inode_page()
924 		truncate_data_blocks_range(&dn, 1);  in remove_inode_page()
931 	truncate_node(&dn);  in remove_inode_page()
937 	struct dnode_of_data dn;  in new_inode_page()  local
940 	set_new_dnode(&dn, inode, NULL, NULL, inode->i_ino);  in new_inode_page()
943 	return new_node_page(&dn, 0, NULL);  in new_inode_page()
946 struct page *new_node_page(struct dnode_of_data *dn,  in new_node_page()  argument
949 	struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);  in new_node_page()
954 	if (unlikely(is_inode_flag_set(F2FS_I(dn->inode), FI_NO_ALLOC)))  in new_node_page()
957 	page = grab_cache_page(NODE_MAPPING(sbi), dn->nid);  in new_node_page()
961 	if (unlikely(!inc_valid_node_count(sbi, dn->inode))) {  in new_node_page()
966 	get_node_info(sbi, dn->nid, &old_ni);  in new_node_page()
971 	new_ni.ino = dn->inode->i_ino;  in new_node_page()
975 	fill_node_footer(page, dn->nid, dn->inode->i_ino, ofs, true);  in new_node_page()
976 	set_cold_node(dn->inode, page);  in new_node_page()
981 		F2FS_I(dn->inode)->i_xattr_nid = dn->nid;  in new_node_page()
983 	dn->node_page = page;  in new_node_page()
985 		update_inode(dn->inode, ipage);  in new_node_page()
987 		sync_inode_page(dn);  in new_node_page()
1138 void sync_inode_page(struct dnode_of_data *dn)  in sync_inode_page()  argument
1140 	if (IS_INODE(dn->node_page) || dn->inode_page == dn->node_page) {  in sync_inode_page()
1141 		update_inode(dn->inode, dn->node_page);  in sync_inode_page()
1142 	} else if (dn->inode_page) {  in sync_inode_page()
1143 		if (!dn->inode_page_locked)  in sync_inode_page()
1144 			lock_page(dn->inode_page);  in sync_inode_page()
1145 		update_inode(dn->inode, dn->inode_page);  in sync_inode_page()
1146 		if (!dn->inode_page_locked)  in sync_inode_page()
1147 			unlock_page(dn->inode_page);  in sync_inode_page()
1149 		update_inode_page(dn->inode);  in sync_inode_page()