645 pgoff_t f2fs_get_next_page_offset(struct dnode_of_data *dn, pgoff_t pgofs)  in f2fs_get_next_page_offset()  argument
647 	const long direct_index = ADDRS_PER_INODE(dn->inode);  in f2fs_get_next_page_offset()
648 	const long direct_blks = ADDRS_PER_BLOCK(dn->inode);  in f2fs_get_next_page_offset()
649 	const long indirect_blks = ADDRS_PER_BLOCK(dn->inode) * NIDS_PER_BLOCK;  in f2fs_get_next_page_offset()
650 	unsigned int skipped_unit = ADDRS_PER_BLOCK(dn->inode);  in f2fs_get_next_page_offset()
651 	int cur_level = dn->cur_level;  in f2fs_get_next_page_offset()
652 	int max_level = dn->max_level;  in f2fs_get_next_page_offset()
655 	if (!dn->max_level)  in f2fs_get_next_page_offset()
661 	switch (dn->max_level) {  in f2fs_get_next_page_offset()
672 		f2fs_bug_on(F2FS_I_SB(dn->inode), 1);  in f2fs_get_next_page_offset()
757  * Caller should call f2fs_put_dnode(dn).
761 int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode)  in f2fs_get_dnode_of_data()  argument
763 	struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);  in f2fs_get_dnode_of_data()
772 	level = get_node_path(dn->inode, index, offset, noffset);  in f2fs_get_dnode_of_data()
776 	nids[0] = dn->inode->i_ino;  in f2fs_get_dnode_of_data()
777 	npage[0] = dn->inode_page;  in f2fs_get_dnode_of_data()
786 	if (f2fs_has_inline_data(dn->inode) && index) {  in f2fs_get_dnode_of_data()
795 	dn->inode_page = npage[0];  in f2fs_get_dnode_of_data()
796 	dn->inode_page_locked = true;  in f2fs_get_dnode_of_data()
809 			dn->nid = nids[i];  in f2fs_get_dnode_of_data()
810 			npage[i] = f2fs_new_node_page(dn, noffset[i]);  in f2fs_get_dnode_of_data()
829 			dn->inode_page_locked = false;  in f2fs_get_dnode_of_data()
848 	dn->nid = nids[level];  in f2fs_get_dnode_of_data()
849 	dn->ofs_in_node = offset[level];  in f2fs_get_dnode_of_data()
850 	dn->node_page = npage[level];  in f2fs_get_dnode_of_data()
851 	dn->data_blkaddr = f2fs_data_blkaddr(dn);  in f2fs_get_dnode_of_data()
853 	if (is_inode_flag_set(dn->inode, FI_COMPRESSED_FILE) &&  in f2fs_get_dnode_of_data()
855 		unsigned int c_len = f2fs_cluster_blocks_are_contiguous(dn);  in f2fs_get_dnode_of_data()
861 		blkaddr = f2fs_data_blkaddr(dn);  in f2fs_get_dnode_of_data()
863 			blkaddr = data_blkaddr(dn->inode, dn->node_page,  in f2fs_get_dnode_of_data()
864 						dn->ofs_in_node + 1);  in f2fs_get_dnode_of_data()
866 		f2fs_update_read_extent_tree_range_compressed(dn->inode,  in f2fs_get_dnode_of_data()
868 					F2FS_I(dn->inode)->i_cluster_size,  in f2fs_get_dnode_of_data()
879 	dn->inode_page = NULL;  in f2fs_get_dnode_of_data()
880 	dn->node_page = NULL;  in f2fs_get_dnode_of_data()
882 		dn->cur_level = i;  in f2fs_get_dnode_of_data()
883 		dn->max_level = level;  in f2fs_get_dnode_of_data()
884 		dn->ofs_in_node = offset[level];  in f2fs_get_dnode_of_data()
889 static int truncate_node(struct dnode_of_data *dn)  in truncate_node()  argument
891 	struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);  in truncate_node()
896 	err = f2fs_get_node_info(sbi, dn->nid, &ni, false);  in truncate_node()
902 	dec_valid_node_count(sbi, dn->inode, dn->nid == dn->inode->i_ino);  in truncate_node()
905 	if (dn->nid == dn->inode->i_ino) {  in truncate_node()
906 		f2fs_remove_orphan_inode(sbi, dn->nid);  in truncate_node()
908 		f2fs_inode_synced(dn->inode);  in truncate_node()
911 	clear_node_page_dirty(dn->node_page);  in truncate_node()
914 	index = dn->node_page->index;  in truncate_node()
915 	f2fs_put_page(dn->node_page, 1);  in truncate_node()
920 	dn->node_page = NULL;  in truncate_node()
921 	trace_f2fs_truncate_node(dn->inode, dn->nid, ni.blk_addr);  in truncate_node()
926 static int truncate_dnode(struct dnode_of_data *dn)  in truncate_dnode()  argument
928 	struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);  in truncate_dnode()
932 	if (dn->nid == 0)  in truncate_dnode()
936 	page = f2fs_get_node_page(sbi, dn->nid);  in truncate_dnode()
942 	if (IS_INODE(page) || ino_of_node(page) != dn->inode->i_ino) {  in truncate_dnode()
944 				dn->inode->i_ino, dn->nid, ino_of_node(page));  in truncate_dnode()
952 	dn->node_page = page;  in truncate_dnode()
953 	dn->ofs_in_node = 0;  in truncate_dnode()
954 	f2fs_truncate_data_blocks_range(dn, ADDRS_PER_BLOCK(dn->inode));  in truncate_dnode()
955 	err = truncate_node(dn);  in truncate_dnode()
964 static int truncate_nodes(struct dnode_of_data *dn, unsigned int nofs,  in truncate_nodes()  argument
967 	struct dnode_of_data rdn = *dn;  in truncate_nodes()
975 	if (dn->nid == 0)  in truncate_nodes()
978 	trace_f2fs_truncate_nodes_enter(dn->inode, dn->nid, dn->data_blkaddr);  in truncate_nodes()
980 	page = f2fs_get_node_page(F2FS_I_SB(dn->inode), dn->nid);  in truncate_nodes()
982 		trace_f2fs_truncate_nodes_exit(dn->inode, PTR_ERR(page));  in truncate_nodes()
999 				dn->node_changed = true;  in truncate_nodes()
1013 					dn->node_changed = true;  in truncate_nodes()
1024 		dn->node_page = page;  in truncate_nodes()
1025 		ret = truncate_node(dn);  in truncate_nodes()
1032 	trace_f2fs_truncate_nodes_exit(dn->inode, freed);  in truncate_nodes()
1037 	trace_f2fs_truncate_nodes_exit(dn->inode, ret);  in truncate_nodes()
1041 static int truncate_partial_nodes(struct dnode_of_data *dn,  in truncate_partial_nodes()  argument
1058 		pages[i] = f2fs_get_node_page(F2FS_I_SB(dn->inode), nid[i]);  in truncate_partial_nodes()
1074 		dn->nid = child_nid;  in truncate_partial_nodes()
1075 		err = truncate_dnode(dn);  in truncate_partial_nodes()
1079 			dn->node_changed = true;  in truncate_partial_nodes()
1083 		dn->node_page = pages[idx];  in truncate_partial_nodes()
1084 		dn->nid = nid[idx];  in truncate_partial_nodes()
1085 		err = truncate_node(dn);  in truncate_partial_nodes()
1098 	trace_f2fs_truncate_partial_nodes(dn->inode, nid, depth, err);  in truncate_partial_nodes()
1113 	struct dnode_of_data dn;  in f2fs_truncate_inode_blocks()  local
1130 	set_new_dnode(&dn, inode, page, NULL, 0);  in f2fs_truncate_inode_blocks()
1143 		err = truncate_partial_nodes(&dn, ri, offset, level);  in f2fs_truncate_inode_blocks()
1152 		err = truncate_partial_nodes(&dn, ri, offset, level);  in f2fs_truncate_inode_blocks()
1162 		dn.nid = le32_to_cpu(ri->i_nid[offset[0] - NODE_DIR1_BLOCK]);  in f2fs_truncate_inode_blocks()
1166 			err = truncate_dnode(&dn);  in f2fs_truncate_inode_blocks()
1171 			err = truncate_nodes(&dn, nofs, offset[1], 2);  in f2fs_truncate_inode_blocks()
1175 			err = truncate_nodes(&dn, nofs, offset[1], 3);  in f2fs_truncate_inode_blocks()
1208 	struct dnode_of_data dn;  in f2fs_truncate_xattr_node()  local
1219 	set_new_dnode(&dn, inode, NULL, npage, nid);  in f2fs_truncate_xattr_node()
1220 	err = truncate_node(&dn);  in f2fs_truncate_xattr_node()
1237 	struct dnode_of_data dn;  in f2fs_remove_inode_page()  local
1240 	set_new_dnode(&dn, inode, NULL, NULL, inode->i_ino);  in f2fs_remove_inode_page()
1241 	err = f2fs_get_dnode_of_data(&dn, 0, LOOKUP_NODE);  in f2fs_remove_inode_page()
1247 		f2fs_put_dnode(&dn);  in f2fs_remove_inode_page()
1254 		f2fs_truncate_data_blocks_range(&dn, 1);  in f2fs_remove_inode_page()
1258 		f2fs_put_dnode(&dn);  in f2fs_remove_inode_page()
1270 	err = truncate_node(&dn);  in f2fs_remove_inode_page()
1272 		f2fs_put_dnode(&dn);  in f2fs_remove_inode_page()
1280 	struct dnode_of_data dn;  in f2fs_new_inode_page()  local
1283 	set_new_dnode(&dn, inode, NULL, NULL, inode->i_ino);  in f2fs_new_inode_page()
1286 	return f2fs_new_node_page(&dn, 0);  in f2fs_new_inode_page()
1289 struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs)  in f2fs_new_node_page()  argument
1291 	struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);  in f2fs_new_node_page()
1296 	if (unlikely(is_inode_flag_set(dn->inode, FI_NO_ALLOC)))  in f2fs_new_node_page()
1299 	page = f2fs_grab_cache_page(NODE_MAPPING(sbi), dn->nid, false);  in f2fs_new_node_page()
1303 	if (unlikely((err = inc_valid_node_count(sbi, dn->inode, !ofs))))  in f2fs_new_node_page()
1307 	err = f2fs_get_node_info(sbi, dn->nid, &new_ni, false);  in f2fs_new_node_page()
1309 		dec_valid_node_count(sbi, dn->inode, !ofs);  in f2fs_new_node_page()
1319 	new_ni.nid = dn->nid;  in f2fs_new_node_page()
1320 	new_ni.ino = dn->inode->i_ino;  in f2fs_new_node_page()
1327 	fill_node_footer(page, dn->nid, dn->inode->i_ino, ofs, true);  in f2fs_new_node_page()
1328 	set_cold_node(page, S_ISDIR(dn->inode->i_mode));  in f2fs_new_node_page()
1332 		dn->node_changed = true;  in f2fs_new_node_page()
1335 		f2fs_i_xnid_write(dn->inode, dn->nid);  in f2fs_new_node_page()
2713 	struct dnode_of_data dn;  in f2fs_recover_xattr_data()  local
2735 	set_new_dnode(&dn, inode, NULL, NULL, new_xnid);  in f2fs_recover_xattr_data()
2736 	xpage = f2fs_new_node_page(&dn, XATTR_NODE_OFFSET);  in f2fs_recover_xattr_data()