113 	int err, offs, len;  in get_master_node()  local
125 	offs = 0;  in get_master_node()
128 	while (offs + UBIFS_MST_NODE_SZ <= c->leb_size) {  in get_master_node()
133 		offs += sz;  in get_master_node()
138 	if (offs) {  in get_master_node()
141 		offs -= sz;  in get_master_node()
144 		ret = ubifs_scan_a_node(c, buf, len, lnum, offs, 1);  in get_master_node()
145 		if (ret != SCANNED_A_NODE && offs) {  in get_master_node()
147 			offs -= sz;  in get_master_node()
150 			ret = ubifs_scan_a_node(c, buf, len, lnum, offs, 1);  in get_master_node()
164 			dbg_rcvry("found a master node at %d:%d", lnum, offs);  in get_master_node()
166 			offs += sz;  in get_master_node()
172 	if (offs < c->leb_size) {  in get_master_node()
175 			dbg_rcvry("found corruption at %d:%d", lnum, offs);  in get_master_node()
177 		offs += sz;  in get_master_node()
182 	if (offs < c->leb_size)  in get_master_node()
413 static int is_last_write(const struct ubifs_info *c, void *buf, int offs)  in is_last_write()  argument
422 	empty_offs = ALIGN(offs + 1, c->max_write_size);  in is_last_write()
424 	p = buf + empty_offs - offs;  in is_last_write()
441 		      int *offs, int *len)  in clean_buf()  argument
446 	dbg_rcvry("cleaning corruption at %d:%d", lnum, *offs);  in clean_buf()
448 	ubifs_assert(!(*offs & 7));  in clean_buf()
449 	empty_offs = ALIGN(*offs, c->min_io_size);  in clean_buf()
450 	pad_len = empty_offs - *offs;  in clean_buf()
452 	*offs += pad_len;  in clean_buf()
471 			int lnum, int offs)  in no_more_nodes()  argument
477 	skip = ALIGN(offs + UBIFS_CH_SZ, c->max_write_size) - offs;  in no_more_nodes()
484 	if (ubifs_check_node(c, buf, lnum, offs, 1, 0) != -EUCLEAN) {  in no_more_nodes()
485 		dbg_rcvry("unexpected bad common header at %d:%d", lnum, offs);  in no_more_nodes()
489 	skip = ALIGN(offs + dlen, c->max_write_size) - offs;  in no_more_nodes()
493 	dbg_rcvry("unexpected data at %d:%d", lnum, offs + skip);  in no_more_nodes()
514 		endpt = snod->offs + snod->len;  in fix_unclean_leb()
574 static void drop_last_group(struct ubifs_scan_leb *sleb, int *offs)  in drop_last_group()  argument
587 			  sleb->lnum, snod->offs);  in drop_last_group()
588 		*offs = snod->offs;  in drop_last_group()
603 static void drop_last_node(struct ubifs_scan_leb *sleb, int *offs)  in drop_last_node()  argument
612 			  sleb->lnum, snod->offs);  in drop_last_node()
613 		*offs = snod->offs;  in drop_last_node()
635 					 int offs, void *sbuf, int jhead)  in ubifs_recover_leb()  argument
637 	int ret = 0, err, len = c->leb_size - offs, start = offs, min_io_unit;  in ubifs_recover_leb()
640 	void *buf = sbuf + offs;  in ubifs_recover_leb()
642 	dbg_rcvry("%d:%d, jhead %d, grouped %d", lnum, offs, jhead, grouped);  in ubifs_recover_leb()
644 	sleb = ubifs_start_scan(c, lnum, offs, sbuf);  in ubifs_recover_leb()
651 			 lnum, offs, len);  in ubifs_recover_leb()
659 		ret = ubifs_scan_a_node(c, buf, len, lnum, offs, 1);  in ubifs_recover_leb()
665 			err = ubifs_add_snod(c, sleb, buf, offs);  in ubifs_recover_leb()
669 			offs += node_len;  in ubifs_recover_leb()
674 			offs += ret;  in ubifs_recover_leb()
682 				  ret, lnum, offs);  in ubifs_recover_leb()
692 		if (!is_last_write(c, buf, offs))  in ubifs_recover_leb()
695 		if (!no_more_nodes(c, buf, len, lnum, offs))  in ubifs_recover_leb()
698 		if (!is_last_write(c, buf, offs)) {  in ubifs_recover_leb()
706 				  lnum, offs, corruption);  in ubifs_recover_leb()
708 			offs += corruption;  in ubifs_recover_leb()
714 	min_io_unit = round_down(offs, c->min_io_size);  in ubifs_recover_leb()
720 		drop_last_group(sleb, &offs);  in ubifs_recover_leb()
773 		while (offs > min_io_unit)  in ubifs_recover_leb()
774 			drop_last_node(sleb, &offs);  in ubifs_recover_leb()
777 	buf = sbuf + offs;  in ubifs_recover_leb()
778 	len = c->leb_size - offs;  in ubifs_recover_leb()
780 	clean_buf(c, &buf, lnum, &offs, &len);  in ubifs_recover_leb()
781 	ubifs_end_scan(c, sleb, lnum, offs);  in ubifs_recover_leb()
792 	ubifs_scan_a_node(c, buf, len, lnum, offs, 0);  in ubifs_recover_leb()
794 	ubifs_scanned_corruption(c, lnum, offs, buf);  in ubifs_recover_leb()
811 static int get_cs_sqnum(struct ubifs_info *c, int lnum, int offs,  in get_cs_sqnum()  argument
817 	dbg_rcvry("at %d:%d", lnum, offs);  in get_cs_sqnum()
821 	if (c->leb_size - offs < UBIFS_CS_NODE_SZ)  in get_cs_sqnum()
823 	err = ubifs_leb_read(c, lnum, (void *)cs_node, offs,  in get_cs_sqnum()
827 	ret = ubifs_scan_a_node(c, cs_node, UBIFS_CS_NODE_SZ, lnum, offs, 0);  in get_cs_sqnum()
869 					     int offs, void *sbuf)  in ubifs_recover_log_leb()  argument
895 				err = get_cs_sqnum(c, lnum, offs, &cs_sqnum);  in ubifs_recover_log_leb()
910 	return ubifs_recover_leb(c, lnum, offs, sbuf, -1);  in ubifs_recover_log_leb()
924 static int recover_head(struct ubifs_info *c, int lnum, int offs, void *sbuf)  in recover_head()  argument
928 	if (offs + len > c->leb_size)  in recover_head()
929 		len = c->leb_size - offs;  in recover_head()
935 	err = ubifs_leb_read(c, lnum, sbuf, offs, len, 1);  in recover_head()
937 		dbg_rcvry("cleaning head at %d:%d", lnum, offs);  in recover_head()
938 		if (offs == 0)  in recover_head()
940 		err = ubifs_leb_read(c, lnum, sbuf, 0, offs, 1);  in recover_head()
943 		return ubifs_leb_change(c, lnum, sbuf, offs);  in recover_head()
997 	int err, lnum = ucleb->lnum, offs = 0, len = ucleb->endpt, quiet = 1;  in clean_an_unclean_leb()  local
1007 	err = ubifs_leb_read(c, lnum, buf, offs, len, 0);  in clean_an_unclean_leb()
1017 		ret = ubifs_scan_a_node(c, buf, len, lnum, offs, quiet);  in clean_an_unclean_leb()
1025 			offs += node_len;  in clean_an_unclean_leb()
1033 			offs += ret;  in clean_an_unclean_leb()
1041 				  lnum, offs);  in clean_an_unclean_leb()
1051 		ubifs_scanned_corruption(c, lnum, offs, buf);  in clean_an_unclean_leb()
1176 	dbg_rcvry("GC head LEB %d, offs %d", wbuf->lnum, wbuf->offs);  in ubifs_rcvry_gc_commit()
1179 	if (wbuf->lnum == -1 || wbuf->offs == c->leb_size)  in ubifs_rcvry_gc_commit()
1182 	err = ubifs_find_dirty_leb(c, &lp, wbuf->offs, 2);  in ubifs_rcvry_gc_commit()
1192 	ubifs_assert(lp.free + lp.dirty >= wbuf->offs);  in ubifs_rcvry_gc_commit()
1419 	int err, lnum, offs, len;  in fix_size_in_place()  local
1425 	err = ubifs_tnc_locate(c, &key, ino, &lnum, &offs);  in fix_size_in_place()
1440 	ino = c->sbuf + offs;  in fix_size_in_place()
1456 		  (unsigned long)e->inum, lnum, offs, i_size, e->d_size);  in fix_size_in_place()