44 static int is_empty(void *buf, int len)  in is_empty()  argument
46 	uint8_t *p = buf;  in is_empty()
77 	void *sbuf, *buf;  in get_master_node()  local
89 	buf = sbuf;  in get_master_node()
92 		struct ubifs_ch *ch = buf;  in get_master_node()
97 		buf  += sz;  in get_master_node()
105 		buf  -= sz;  in get_master_node()
107 		ret = ubifs_scan_a_node(c, buf, len, lnum, offs, 1);  in get_master_node()
111 			buf  -= sz;  in get_master_node()
113 			ret = ubifs_scan_a_node(c, buf, len, lnum, offs, 1);  in get_master_node()
123 			struct ubifs_ch *ch = buf;  in get_master_node()
128 			*mst = buf;  in get_master_node()
130 			buf  += sz;  in get_master_node()
136 		if (!is_empty(buf, min_t(int, len, sz))) {  in get_master_node()
137 			*cor = buf;  in get_master_node()
141 		buf  += sz;  in get_master_node()
146 		if (!is_empty(buf, len))  in get_master_node()
349 static int is_last_write(const struct ubifs_info *c, void *buf, int offs)  in is_last_write()  argument
357 		p = buf + check_len;  in is_last_write()
377 	p = buf + empty_offs - offs;  in is_last_write()
397 static void clean_buf(const struct ubifs_info *c, void **buf, int lnum,  in clean_buf()  argument
406 		memset(*buf, 0xff, c->leb_size - *offs);  in clean_buf()
413 	ubifs_pad(c, *buf, pad_len);  in clean_buf()
415 	*buf += pad_len;  in clean_buf()
417 	memset(*buf, 0xff, c->leb_size - empty_offs);  in clean_buf()
431 static int no_more_nodes(const struct ubifs_info *c, void *buf, int len,  in no_more_nodes()  argument
437 		struct ubifs_ch *ch = buf;  in no_more_nodes()
452 	buf += skip;  in no_more_nodes()
455 		struct ubifs_ch *ch = buf;  in no_more_nodes()
460 			ret = ubifs_scan_a_node(c, buf, len, lnum, offs, 1);  in no_more_nodes()
477 		buf += 8;  in no_more_nodes()
529 				err = ubi_read(c->ubi, lnum, sleb->buf, 0,  in fix_unclean_leb()
539 					void *buf = sleb->buf + len - pad_len;  in fix_unclean_leb()  local
541 					ubifs_pad(c, buf, pad_len);  in fix_unclean_leb()
544 			err = ubi_leb_change(c->ubi, lnum, sleb->buf, len,  in fix_unclean_leb()
602 	void *buf = sbuf + offs;  in ubifs_recover_leb()  local
625 		ret = ubifs_scan_a_node(c, buf, len, lnum, offs, quiet);  in ubifs_recover_leb()
629 			struct ubifs_ch *ch = buf;  in ubifs_recover_leb()
632 			err = ubifs_add_snod(c, sleb, buf, offs);  in ubifs_recover_leb()
637 			buf += node_len;  in ubifs_recover_leb()
645 			buf += ret;  in ubifs_recover_leb()
651 			if (!is_empty(buf, len)) {  in ubifs_recover_leb()
652 				if (!is_last_write(c, buf, offs))  in ubifs_recover_leb()
654 				clean_buf(c, &buf, lnum, &offs, &len);  in ubifs_recover_leb()
662 			if (is_last_write(c, buf, offs)) {  in ubifs_recover_leb()
663 				clean_buf(c, &buf, lnum, &offs, &len);  in ubifs_recover_leb()
670 			if (no_more_nodes(c, buf, len, lnum, offs)) {  in ubifs_recover_leb()
671 				clean_buf(c, &buf, lnum, &offs, &len);  in ubifs_recover_leb()
697 	if (!empty_chkd && !is_empty(buf, len)) {  in ubifs_recover_leb()
698 		if (is_last_write(c, buf, offs)) {  in ubifs_recover_leb()
699 			clean_buf(c, &buf, lnum, &offs, &len);  in ubifs_recover_leb()
710 		buf = sbuf + offs;  in ubifs_recover_leb()
712 		clean_buf(c, &buf, lnum, &offs, &len);  in ubifs_recover_leb()
717 		clean_buf(c, &buf, lnum, &offs, &len);  in ubifs_recover_leb()
732 	ubifs_scanned_corruption(c, lnum, offs, buf);  in ubifs_recover_leb()
954 	void *buf = sbuf;  in clean_an_unclean_leb()  local
966 	err = ubi_read(c->ubi, lnum, buf, offs, len);  in clean_an_unclean_leb()
976 		ret = ubifs_scan_a_node(c, buf, len, lnum, offs, quiet);  in clean_an_unclean_leb()
980 			struct ubifs_ch *ch = buf;  in clean_an_unclean_leb()
985 			buf += node_len;  in clean_an_unclean_leb()
993 			buf += ret;  in clean_an_unclean_leb()
1010 		ubifs_scanned_corruption(c, lnum, offs, buf);  in clean_an_unclean_leb()
1020 			buf = c->sbuf + len - pad_len;  in clean_an_unclean_leb()
1021 			ubifs_pad(c, buf, pad_len);  in clean_an_unclean_leb()