101 	int err, offs, len;  in get_master_node()  local
113 	offs = 0;  in get_master_node()
116 	while (offs + UBIFS_MST_NODE_SZ <= c->leb_size) {  in get_master_node()
121 		offs += sz;  in get_master_node()
126 	if (offs) {  in get_master_node()
129 		offs -= sz;  in get_master_node()
132 		ret = ubifs_scan_a_node(c, buf, len, lnum, offs, 1);  in get_master_node()
133 		if (ret != SCANNED_A_NODE && offs) {  in get_master_node()
135 			offs -= sz;  in get_master_node()
138 			ret = ubifs_scan_a_node(c, buf, len, lnum, offs, 1);  in get_master_node()
152 			dbg_rcvry("found a master node at %d:%d", lnum, offs);  in get_master_node()
154 			offs += sz;  in get_master_node()
160 	if (offs < c->leb_size) {  in get_master_node()
163 			dbg_rcvry("found corruption at %d:%d", lnum, offs);  in get_master_node()
165 		offs += sz;  in get_master_node()
170 	if (offs < c->leb_size)  in get_master_node()
402 static int is_last_write(const struct ubifs_info *c, void *buf, int offs)  in is_last_write()  argument
411 	empty_offs = ALIGN(offs + 1, c->max_write_size);  in is_last_write()
413 	p = buf + empty_offs - offs;  in is_last_write()
430 		      int *offs, int *len)  in clean_buf()  argument
434 	dbg_rcvry("cleaning corruption at %d:%d", lnum, *offs);  in clean_buf()
436 	ubifs_assert(c, !(*offs & 7));  in clean_buf()
437 	empty_offs = ALIGN(*offs, c->min_io_size);  in clean_buf()
438 	pad_len = empty_offs - *offs;  in clean_buf()
440 	*offs += pad_len;  in clean_buf()
459 			int lnum, int offs)  in no_more_nodes()  argument
465 	skip = ALIGN(offs + UBIFS_CH_SZ, c->max_write_size) - offs;  in no_more_nodes()
472 	if (ubifs_check_node(c, buf, len, lnum, offs, 1, 0) != -EUCLEAN) {  in no_more_nodes()
473 		dbg_rcvry("unexpected bad common header at %d:%d", lnum, offs);  in no_more_nodes()
477 	skip = ALIGN(offs + dlen, c->max_write_size) - offs;  in no_more_nodes()
481 	dbg_rcvry("unexpected data at %d:%d", lnum, offs + skip);  in no_more_nodes()
502 		endpt = snod->offs + snod->len;  in fix_unclean_leb()
562 static void drop_last_group(struct ubifs_scan_leb *sleb, int *offs)  in drop_last_group()  argument
575 			  sleb->lnum, snod->offs);  in drop_last_group()
576 		*offs = snod->offs;  in drop_last_group()
591 static void drop_last_node(struct ubifs_scan_leb *sleb, int *offs)  in drop_last_node()  argument
600 			  sleb->lnum, snod->offs);  in drop_last_node()
601 		*offs = snod->offs;  in drop_last_node()
623 					 int offs, void *sbuf, int jhead)  in ubifs_recover_leb()  argument
625 	int ret = 0, err, len = c->leb_size - offs, start = offs, min_io_unit;  in ubifs_recover_leb()
628 	void *buf = sbuf + offs;  in ubifs_recover_leb()
630 	dbg_rcvry("%d:%d, jhead %d, grouped %d", lnum, offs, jhead, grouped);  in ubifs_recover_leb()
632 	sleb = ubifs_start_scan(c, lnum, offs, sbuf);  in ubifs_recover_leb()
639 			 lnum, offs, len);  in ubifs_recover_leb()
647 		ret = ubifs_scan_a_node(c, buf, len, lnum, offs, 1);  in ubifs_recover_leb()
653 			err = ubifs_add_snod(c, sleb, buf, offs);  in ubifs_recover_leb()
657 			offs += node_len;  in ubifs_recover_leb()
662 			offs += ret;  in ubifs_recover_leb()
670 				  ret, lnum, offs);  in ubifs_recover_leb()
680 		if (!is_last_write(c, buf, offs))  in ubifs_recover_leb()
683 		if (!no_more_nodes(c, buf, len, lnum, offs))  in ubifs_recover_leb()
686 		if (!is_last_write(c, buf, offs)) {  in ubifs_recover_leb()
694 				  lnum, offs, corruption);  in ubifs_recover_leb()
696 			offs += corruption;  in ubifs_recover_leb()
702 	min_io_unit = round_down(offs, c->min_io_size);  in ubifs_recover_leb()
708 		drop_last_group(sleb, &offs);  in ubifs_recover_leb()
761 		while (offs > min_io_unit)  in ubifs_recover_leb()
762 			drop_last_node(sleb, &offs);  in ubifs_recover_leb()
765 	buf = sbuf + offs;  in ubifs_recover_leb()
766 	len = c->leb_size - offs;  in ubifs_recover_leb()
768 	clean_buf(c, &buf, lnum, &offs, &len);  in ubifs_recover_leb()
769 	ubifs_end_scan(c, sleb, lnum, offs);  in ubifs_recover_leb()
780 	ubifs_scan_a_node(c, buf, len, lnum, offs, 0);  in ubifs_recover_leb()
782 	ubifs_scanned_corruption(c, lnum, offs, buf);  in ubifs_recover_leb()
799 static int get_cs_sqnum(struct ubifs_info *c, int lnum, int offs,  in get_cs_sqnum()  argument
805 	dbg_rcvry("at %d:%d", lnum, offs);  in get_cs_sqnum()
809 	if (c->leb_size - offs < UBIFS_CS_NODE_SZ)  in get_cs_sqnum()
811 	err = ubifs_leb_read(c, lnum, (void *)cs_node, offs,  in get_cs_sqnum()
815 	ret = ubifs_scan_a_node(c, cs_node, UBIFS_CS_NODE_SZ, lnum, offs, 0);  in get_cs_sqnum()
857 					     int offs, void *sbuf)  in ubifs_recover_log_leb()  argument
883 				err = get_cs_sqnum(c, lnum, offs, &cs_sqnum);  in ubifs_recover_log_leb()
898 	return ubifs_recover_leb(c, lnum, offs, sbuf, -1);  in ubifs_recover_log_leb()
912 static int recover_head(struct ubifs_info *c, int lnum, int offs, void *sbuf)  in recover_head()  argument
916 	if (offs + len > c->leb_size)  in recover_head()
917 		len = c->leb_size - offs;  in recover_head()
923 	err = ubifs_leb_read(c, lnum, sbuf, offs, len, 1);  in recover_head()
925 		dbg_rcvry("cleaning head at %d:%d", lnum, offs);  in recover_head()
926 		if (offs == 0)  in recover_head()
928 		err = ubifs_leb_read(c, lnum, sbuf, 0, offs, 1);  in recover_head()
931 		return ubifs_leb_change(c, lnum, sbuf, offs);  in recover_head()
985 	int err, lnum = ucleb->lnum, offs = 0, len = ucleb->endpt, quiet = 1;  in clean_an_unclean_leb()  local
995 	err = ubifs_leb_read(c, lnum, buf, offs, len, 0);  in clean_an_unclean_leb()
1005 		ret = ubifs_scan_a_node(c, buf, len, lnum, offs, quiet);  in clean_an_unclean_leb()
1013 			offs += node_len;  in clean_an_unclean_leb()
1021 			offs += ret;  in clean_an_unclean_leb()
1029 				  lnum, offs);  in clean_an_unclean_leb()
1039 		ubifs_scanned_corruption(c, lnum, offs, buf);  in clean_an_unclean_leb()
1164 	dbg_rcvry("GC head LEB %d, offs %d", wbuf->lnum, wbuf->offs);  in ubifs_rcvry_gc_commit()
1167 	if (wbuf->lnum == -1 || wbuf->offs == c->leb_size)  in ubifs_rcvry_gc_commit()
1170 	err = ubifs_find_dirty_leb(c, &lp, wbuf->offs, 2);  in ubifs_rcvry_gc_commit()
1180 	ubifs_assert(c, lp.free + lp.dirty >= wbuf->offs);  in ubifs_rcvry_gc_commit()
1407 	int err, lnum, offs, len;  in fix_size_in_place()  local
1413 	err = ubifs_tnc_locate(c, &key, ino, &lnum, &offs);  in fix_size_in_place()
1428 	ino = c->sbuf + offs;  in fix_size_in_place()
1444 		  (unsigned long)e->inum, lnum, offs, i_size, e->d_size);  in fix_size_in_place()