593 static void __set_data_blkaddr(struct dnode_of_data *dn)  in __set_data_blkaddr()  argument
595 	struct f2fs_node *rn = F2FS_NODE(dn->node_page);  in __set_data_blkaddr()
599 	if (IS_INODE(dn->node_page) && f2fs_has_extra_attr(dn->inode))  in __set_data_blkaddr()
600 		base = get_extra_isize(dn->inode);  in __set_data_blkaddr()
604 	addr_array[base + dn->ofs_in_node] = cpu_to_le32(dn->data_blkaddr);  in __set_data_blkaddr()
613 void f2fs_set_data_blkaddr(struct dnode_of_data *dn)  in f2fs_set_data_blkaddr()  argument
615 	f2fs_wait_on_page_writeback(dn->node_page, NODE, true);  in f2fs_set_data_blkaddr()
616 	__set_data_blkaddr(dn);  in f2fs_set_data_blkaddr()
617 	if (set_page_dirty(dn->node_page))  in f2fs_set_data_blkaddr()
618 		dn->node_changed = true;  in f2fs_set_data_blkaddr()
621 void f2fs_update_data_blkaddr(struct dnode_of_data *dn, block_t blkaddr)  in f2fs_update_data_blkaddr()  argument
623 	dn->data_blkaddr = blkaddr;  in f2fs_update_data_blkaddr()
624 	f2fs_set_data_blkaddr(dn);  in f2fs_update_data_blkaddr()
625 	f2fs_update_extent_cache(dn);  in f2fs_update_data_blkaddr()
629 int f2fs_reserve_new_blocks(struct dnode_of_data *dn, blkcnt_t count)  in f2fs_reserve_new_blocks()  argument
631 	struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);  in f2fs_reserve_new_blocks()
637 	if (unlikely(is_inode_flag_set(dn->inode, FI_NO_ALLOC)))  in f2fs_reserve_new_blocks()
639 	if (unlikely((err = inc_valid_block_count(sbi, dn->inode, &count))))  in f2fs_reserve_new_blocks()
642 	trace_f2fs_reserve_new_blocks(dn->inode, dn->nid,  in f2fs_reserve_new_blocks()
643 						dn->ofs_in_node, count);  in f2fs_reserve_new_blocks()
645 	f2fs_wait_on_page_writeback(dn->node_page, NODE, true);  in f2fs_reserve_new_blocks()
647 	for (; count > 0; dn->ofs_in_node++) {  in f2fs_reserve_new_blocks()
648 		block_t blkaddr = datablock_addr(dn->inode,  in f2fs_reserve_new_blocks()
649 					dn->node_page, dn->ofs_in_node);  in f2fs_reserve_new_blocks()
651 			dn->data_blkaddr = NEW_ADDR;  in f2fs_reserve_new_blocks()
652 			__set_data_blkaddr(dn);  in f2fs_reserve_new_blocks()
657 	if (set_page_dirty(dn->node_page))  in f2fs_reserve_new_blocks()
658 		dn->node_changed = true;  in f2fs_reserve_new_blocks()
663 int f2fs_reserve_new_block(struct dnode_of_data *dn)  in f2fs_reserve_new_block()  argument
665 	unsigned int ofs_in_node = dn->ofs_in_node;  in f2fs_reserve_new_block()
668 	ret = f2fs_reserve_new_blocks(dn, 1);  in f2fs_reserve_new_block()
669 	dn->ofs_in_node = ofs_in_node;  in f2fs_reserve_new_block()
673 int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index)  in f2fs_reserve_block()  argument
675 	bool need_put = dn->inode_page ? false : true;  in f2fs_reserve_block()
678 	err = f2fs_get_dnode_of_data(dn, index, ALLOC_NODE);  in f2fs_reserve_block()
682 	if (dn->data_blkaddr == NULL_ADDR)  in f2fs_reserve_block()
683 		err = f2fs_reserve_new_block(dn);  in f2fs_reserve_block()
685 		f2fs_put_dnode(dn);  in f2fs_reserve_block()
689 int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index)  in f2fs_get_block()  argument
692 	struct inode *inode = dn->inode;  in f2fs_get_block()
695 		dn->data_blkaddr = ei.blk + index - ei.fofs;  in f2fs_get_block()
699 	return f2fs_reserve_block(dn, index);  in f2fs_get_block()
706 	struct dnode_of_data dn;  in f2fs_get_read_data_page()  local
716 		dn.data_blkaddr = ei.blk + index - ei.fofs;  in f2fs_get_read_data_page()
720 	set_new_dnode(&dn, inode, NULL, NULL, 0);  in f2fs_get_read_data_page()
721 	err = f2fs_get_dnode_of_data(&dn, index, LOOKUP_NODE);  in f2fs_get_read_data_page()
724 	f2fs_put_dnode(&dn);  in f2fs_get_read_data_page()
726 	if (unlikely(dn.data_blkaddr == NULL_ADDR)) {  in f2fs_get_read_data_page()
743 	if (dn.data_blkaddr == NEW_ADDR) {  in f2fs_get_read_data_page()
751 	err = f2fs_submit_page_read(inode, page, dn.data_blkaddr);  in f2fs_get_read_data_page()
828 	struct dnode_of_data dn;  in f2fs_get_new_data_page()  local
841 	set_new_dnode(&dn, inode, ipage, NULL, 0);  in f2fs_get_new_data_page()
842 	err = f2fs_reserve_block(&dn, index);  in f2fs_get_new_data_page()
848 		f2fs_put_dnode(&dn);  in f2fs_get_new_data_page()
853 	if (dn.data_blkaddr == NEW_ADDR) {  in f2fs_get_new_data_page()
873 static int __allocate_data_block(struct dnode_of_data *dn, int seg_type)  in __allocate_data_block()  argument
875 	struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);  in __allocate_data_block()
883 	if (unlikely(is_inode_flag_set(dn->inode, FI_NO_ALLOC)))  in __allocate_data_block()
886 	err = f2fs_get_node_info(sbi, dn->nid, &ni);  in __allocate_data_block()
890 	dn->data_blkaddr = datablock_addr(dn->inode,  in __allocate_data_block()
891 				dn->node_page, dn->ofs_in_node);  in __allocate_data_block()
892 	if (dn->data_blkaddr == NEW_ADDR)  in __allocate_data_block()
895 	if (unlikely((err = inc_valid_block_count(sbi, dn->inode, &count))))  in __allocate_data_block()
899 	set_summary(&sum, dn->nid, dn->ofs_in_node, ni.version);  in __allocate_data_block()
900 	old_blkaddr = dn->data_blkaddr;  in __allocate_data_block()
901 	f2fs_allocate_data_block(sbi, NULL, old_blkaddr, &dn->data_blkaddr,  in __allocate_data_block()
906 	f2fs_set_data_blkaddr(dn);  in __allocate_data_block()
909 	fofs = f2fs_start_bidx_of_node(ofs_of_node(dn->node_page), dn->inode) +  in __allocate_data_block()
910 							dn->ofs_in_node;  in __allocate_data_block()
911 	if (i_size_read(dn->inode) < ((loff_t)(fofs + 1) << PAGE_SHIFT))  in __allocate_data_block()
912 		f2fs_i_size_write(dn->inode,  in __allocate_data_block()
1001 	struct dnode_of_data dn;  in f2fs_map_blocks()  local
1036 	set_new_dnode(&dn, inode, NULL, NULL, 0);  in f2fs_map_blocks()
1037 	err = f2fs_get_dnode_of_data(&dn, pgofs, mode);  in f2fs_map_blocks()
1045 					f2fs_get_next_page_offset(&dn, pgofs);  in f2fs_map_blocks()
1048 					f2fs_get_next_page_offset(&dn, pgofs);  in f2fs_map_blocks()
1055 	last_ofs_in_node = ofs_in_node = dn.ofs_in_node;  in f2fs_map_blocks()
1056 	end_offset = ADDRS_PER_PAGE(dn.node_page, inode);  in f2fs_map_blocks()
1059 	blkaddr = datablock_addr(dn.inode, dn.node_page, dn.ofs_in_node);  in f2fs_map_blocks()
1076 					last_ofs_in_node = dn.ofs_in_node;  in f2fs_map_blocks()
1079 				err = __allocate_data_block(&dn,  in f2fs_map_blocks()
1087 			blkaddr = dn.data_blkaddr;  in f2fs_map_blocks()
1132 	dn.ofs_in_node++;  in f2fs_map_blocks()
1137 			(pgofs == end || dn.ofs_in_node == end_offset)) {  in f2fs_map_blocks()
1139 		dn.ofs_in_node = ofs_in_node;  in f2fs_map_blocks()
1140 		err = f2fs_reserve_new_blocks(&dn, prealloc);  in f2fs_map_blocks()
1144 		map->m_len += dn.ofs_in_node - ofs_in_node;  in f2fs_map_blocks()
1145 		if (prealloc && dn.ofs_in_node != last_ofs_in_node + 1) {  in f2fs_map_blocks()
1149 		dn.ofs_in_node = end_offset;  in f2fs_map_blocks()
1154 	else if (dn.ofs_in_node < end_offset)  in f2fs_map_blocks()
1161 			f2fs_update_extent_cache_range(&dn,  in f2fs_map_blocks()
1167 	f2fs_put_dnode(&dn);  in f2fs_map_blocks()
1171 		f2fs_balance_fs(sbi, dn.node_changed);  in f2fs_map_blocks()
1180 			f2fs_update_extent_cache_range(&dn,  in f2fs_map_blocks()
1187 	f2fs_put_dnode(&dn);  in f2fs_map_blocks()
1191 		f2fs_balance_fs(sbi, dn.node_changed);  in f2fs_map_blocks()
1733 	struct dnode_of_data dn;  in f2fs_do_write_data_page()  local
1739 	set_new_dnode(&dn, inode, NULL, NULL, 0);  in f2fs_do_write_data_page()
1757 	err = f2fs_get_dnode_of_data(&dn, page->index, LOOKUP_NODE);  in f2fs_do_write_data_page()
1761 	fio->old_blkaddr = dn.data_blkaddr;  in f2fs_do_write_data_page()
1787 		f2fs_put_dnode(&dn);  in f2fs_do_write_data_page()
1804 	err = f2fs_get_node_info(fio->sbi, dn.nid, &ni);  in f2fs_do_write_data_page()
1818 	f2fs_outplace_write_data(&dn, fio);  in f2fs_do_write_data_page()
1824 	f2fs_put_dnode(&dn);  in f2fs_do_write_data_page()
2250 	struct dnode_of_data dn;  in prepare_write_begin()  local
2277 	set_new_dnode(&dn, inode, ipage, ipage, 0);  in prepare_write_begin()
2286 			err = f2fs_convert_inline_page(&dn, page);  in prepare_write_begin()
2289 			if (dn.data_blkaddr == NULL_ADDR)  in prepare_write_begin()
2290 				err = f2fs_get_block(&dn, index);  in prepare_write_begin()
2293 		err = f2fs_get_block(&dn, index);  in prepare_write_begin()
2296 			dn.data_blkaddr = ei.blk + index - ei.fofs;  in prepare_write_begin()
2299 			err = f2fs_get_dnode_of_data(&dn, index, LOOKUP_NODE);  in prepare_write_begin()
2300 			if (err || dn.data_blkaddr == NULL_ADDR) {  in prepare_write_begin()
2301 				f2fs_put_dnode(&dn);  in prepare_write_begin()
2311 	*blk_addr = dn.data_blkaddr;  in prepare_write_begin()
2312 	*node_changed = dn.node_changed;  in prepare_write_begin()
2314 	f2fs_put_dnode(&dn);  in prepare_write_begin()