50 static int is_empty(void *buf, int len)  in is_empty()  argument
55 	for (i = 0; i < len; i++)  in is_empty()
69 static int first_non_ff(void *buf, int len)  in first_non_ff()  argument
74 	for (i = 0; i < len; i++)  in first_non_ff()
101 	int err, offs, len;  in get_master_node()  local
115 	len = c->leb_size;  in get_master_node()
123 		len  -= sz;  in get_master_node()
131 		len  += sz;  in get_master_node()
132 		ret = ubifs_scan_a_node(c, buf, len, lnum, offs, 1);  in get_master_node()
137 			len  += sz;  in get_master_node()
138 			ret = ubifs_scan_a_node(c, buf, len, lnum, offs, 1);  in get_master_node()
156 			len  -= sz;  in get_master_node()
161 		if (!is_empty(buf, min_t(int, len, sz))) {  in get_master_node()
167 		len  -= sz;  in get_master_node()
171 		if (!is_empty(buf, len))  in get_master_node()
430 		      int *offs, int *len)  in clean_buf()  argument
442 	*len -= pad_len;  in clean_buf()
458 static int no_more_nodes(const struct ubifs_info *c, void *buf, int len,  in no_more_nodes()  argument
462 	int skip, dlen = le32_to_cpu(ch->len);  in no_more_nodes()
466 	if (is_empty(buf + skip, len - skip))  in no_more_nodes()
479 	if (is_empty(buf + skip, len - skip))  in no_more_nodes()
502 		endpt = snod->offs + snod->len;  in fix_unclean_leb()
528 			int len = ALIGN(endpt, c->min_io_size);  in fix_unclean_leb()  local
537 			if (len > endpt) {  in fix_unclean_leb()
538 				int pad_len = len - ALIGN(endpt, 8);  in fix_unclean_leb()
541 					void *buf = sleb->buf + len - pad_len;  in fix_unclean_leb()
546 			err = ubifs_leb_change(c, lnum, sleb->buf, len);  in fix_unclean_leb()
625 	int ret = 0, err, len = c->leb_size - offs, start = offs, min_io_unit;  in ubifs_recover_leb()  local
636 	ubifs_assert(c, len >= 8);  in ubifs_recover_leb()
637 	while (len >= 8) {  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()
656 			node_len = ALIGN(le32_to_cpu(ch->len), 8);  in ubifs_recover_leb()
659 			len -= node_len;  in ubifs_recover_leb()
664 			len -= ret;  in ubifs_recover_leb()
683 		if (!no_more_nodes(c, buf, len, lnum, offs))  in ubifs_recover_leb()
685 	} else if (!is_empty(buf, len)) {  in ubifs_recover_leb()
687 			int corruption = first_non_ff(buf, len);  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()
780 	ubifs_scan_a_node(c, buf, len, lnum, offs, 0);  in ubifs_recover_leb()
914 	int len = c->max_write_size, err;  in recover_head()  local
916 	if (offs + len > c->leb_size)  in recover_head()
917 		len = c->leb_size - offs;  in recover_head()
919 	if (!len)  in recover_head()
923 	err = ubifs_leb_read(c, lnum, sbuf, offs, len, 1);  in recover_head()
924 	if (err || !is_empty(sbuf, len)) {  in recover_head()
985 	int err, lnum = ucleb->lnum, offs = 0, len = ucleb->endpt, quiet = 1;  in clean_an_unclean_leb()  local
988 	dbg_rcvry("LEB %d len %d", lnum, len);  in clean_an_unclean_leb()
990 	if (len == 0) {  in clean_an_unclean_leb()
995 	err = ubifs_leb_read(c, lnum, buf, offs, len, 0);  in clean_an_unclean_leb()
999 	while (len >= 8) {  in clean_an_unclean_leb()
1005 		ret = ubifs_scan_a_node(c, buf, len, lnum, offs, quiet);  in clean_an_unclean_leb()
1012 			node_len = ALIGN(le32_to_cpu(ch->len), 8);  in clean_an_unclean_leb()
1015 			len -= node_len;  in clean_an_unclean_leb()
1023 			len -= ret;  in clean_an_unclean_leb()
1044 	len = ALIGN(ucleb->endpt, c->min_io_size);  in clean_an_unclean_leb()
1045 	if (len > ucleb->endpt) {  in clean_an_unclean_leb()
1046 		int pad_len = len - ALIGN(ucleb->endpt, 8);  in clean_an_unclean_leb()
1049 			buf = c->sbuf + len - pad_len;  in clean_an_unclean_leb()
1055 	err = ubifs_leb_change(c, lnum, sbuf, len);  in clean_an_unclean_leb()
1407 	int err, lnum, offs, len;  in fix_size_in_place()  local
1430 	len = le32_to_cpu(ino->ch.len);  in fix_size_in_place()
1431 	crc = crc32(UBIFS_CRC32_INIT, (void *)ino + 8, len - 8);  in fix_size_in_place()
1435 	len = c->leb_size - 1;  in fix_size_in_place()
1436 	while (p[len] == 0xff)  in fix_size_in_place()
1437 		len -= 1;  in fix_size_in_place()
1438 	len = ALIGN(len + 1, c->min_io_size);  in fix_size_in_place()
1440 	err = ubifs_leb_change(c, lnum, c->sbuf, len);  in fix_size_in_place()