40 				    struct buffer_head *bh,  in fat_make_i_pos()  argument
43 	return ((loff_t)bh->b_blocknr << MSDOS_SB(sb)->dir_per_block_bits)  in fat_make_i_pos()
44 		| (de - (struct msdos_dir_entry *)bh->b_data);  in fat_make_i_pos()
52 	struct buffer_head *bh;  in fat_dir_readahead()  local
62 	bh = sb_find_get_block(sb, phys);  in fat_dir_readahead()
63 	if (bh == NULL || !buffer_uptodate(bh)) {  in fat_dir_readahead()
67 	brelse(bh);  in fat_dir_readahead()
81 			  struct buffer_head **bh, struct msdos_dir_entry **de)  in fat__get_entry()  argument
89 	if (*bh)  in fat__get_entry()
90 		brelse(*bh);  in fat__get_entry()
92 	*bh = NULL;  in fat__get_entry()
100 	*bh = sb_bread(sb, phys);  in fat__get_entry()
101 	if (*bh == NULL) {  in fat__get_entry()
111 	*de = (struct msdos_dir_entry *)((*bh)->b_data + offset);  in fat__get_entry()
117 				struct buffer_head **bh,  in fat_get_entry()  argument
121 	if (*bh && *de &&  in fat_get_entry()
122 	   (*de - (struct msdos_dir_entry *)(*bh)->b_data) <  in fat_get_entry()
128 	return fat__get_entry(dir, pos, bh, de);  in fat_get_entry()
280 			  struct buffer_head **bh, struct msdos_dir_entry **de,  in fat_parse_long()  argument
289 			brelse(*bh);  in fat_parse_long()
317 		if (fat_get_entry(dir, pos, bh, de) < 0)  in fat_parse_long()
467 	struct buffer_head *bh = NULL;  in fat_search_long()  local
477 		if (fat_get_entry(inode, &cpos, &bh, &de) == -1)  in fat_search_long()
488 			int status = fat_parse_long(inode, &cpos, &bh, &de,  in fat_search_long()
530 	sinfo->bh = bh;  in fat_search_long()
531 	sinfo->i_pos = fat_make_i_pos(sb, sinfo->bh, sinfo->de);  in fat_search_long()
558 	struct buffer_head *bh;  in __fat_readdir()  local
587 	bh = NULL;  in __fat_readdir()
589 	if (fat_get_entry(inode, &cpos, &bh, &de) == -1)  in __fat_readdir()
610 		int status = fat_parse_long(inode, &cpos, &bh, &de,  in __fat_readdir()
613 			bh = NULL;  in __fat_readdir()
669 		loff_t i_pos = fat_make_i_pos(sb, bh, de);  in __fat_readdir()
692 	brelse(bh);  in __fat_readdir()
873 			       struct buffer_head **bh,  in fat_get_short_entry()  argument
876 	while (fat_get_entry(dir, pos, bh, de) >= 0) {  in fat_get_short_entry()
893 int fat_get_dotdot_entry(struct inode *dir, struct buffer_head **bh,  in fat_get_dotdot_entry()  argument
899 	while (fat_get_short_entry(dir, &offset, bh, de) >= 0) {  in fat_get_dotdot_entry()
910 	struct buffer_head *bh;  in fat_dir_empty()  local
915 	bh = NULL;  in fat_dir_empty()
917 	while (fat_get_short_entry(dir, &cpos, &bh, &de) >= 0) {  in fat_dir_empty()
924 	brelse(bh);  in fat_dir_empty()
935 	struct buffer_head *bh;  in fat_subdirs()  local
940 	bh = NULL;  in fat_subdirs()
942 	while (fat_get_short_entry(dir, &cpos, &bh, &de) >= 0) {  in fat_subdirs()
946 	brelse(bh);  in fat_subdirs()
960 	sinfo->bh = NULL;  in fat_scan()
961 	while (fat_get_short_entry(dir, &sinfo->slot_off, &sinfo->bh,  in fat_scan()
966 			sinfo->i_pos = fat_make_i_pos(sb, sinfo->bh, sinfo->de);  in fat_scan()
984 	sinfo->bh = NULL;  in fat_scan_logstart()
985 	while (fat_get_short_entry(dir, &sinfo->slot_off, &sinfo->bh,  in fat_scan_logstart()
990 			sinfo->i_pos = fat_make_i_pos(sb, sinfo->bh, sinfo->de);  in fat_scan_logstart()
1000 	struct buffer_head *bh;  in __fat_remove_entries()  local
1005 		bh = NULL;  in __fat_remove_entries()
1006 		if (fat_get_entry(dir, &pos, &bh, &de) < 0) {  in __fat_remove_entries()
1012 		endp = (struct msdos_dir_entry *)(bh->b_data + sb->s_blocksize);  in __fat_remove_entries()
1018 		mark_buffer_dirty_inode(bh, dir);  in __fat_remove_entries()
1020 			err = sync_dirty_buffer(bh);  in __fat_remove_entries()
1021 		brelse(bh);  in __fat_remove_entries()
1036 	struct buffer_head *bh;  in fat_remove_entries()  local
1046 	bh = sinfo->bh;  in fat_remove_entries()
1047 	sinfo->bh = NULL;  in fat_remove_entries()
1048 	while (nr_slots && de >= (struct msdos_dir_entry *)bh->b_data) {  in fat_remove_entries()
1053 	mark_buffer_dirty_inode(bh, dir);  in fat_remove_entries()
1055 		err = sync_dirty_buffer(bh);  in fat_remove_entries()
1056 	brelse(bh);  in fat_remove_entries()
1197 			       struct buffer_head **bh, loff_t *i_pos)  in fat_add_new_entries()  argument
1252 	*bh = bhs[n];  in fat_add_new_entries()
1253 	*de = (struct msdos_dir_entry *)((*bh)->b_data + offset);  in fat_add_new_entries()
1254 	*i_pos = fat_make_i_pos(sb, *bh, *de);  in fat_add_new_entries()
1264 	brelse(*bh);  in fat_add_new_entries()
1265 	*bh = NULL;  in fat_add_new_entries()
1280 	struct buffer_head *bh, *prev, *bhs[3]; /* 32*slots (672bytes) */  in fat_add_entries()  local
1289 	bh = prev = NULL;  in fat_add_entries()
1292 	while (fat_get_entry(dir, &pos, &bh, &de) > -1) {  in fat_add_entries()
1298 			if (prev != bh) {  in fat_add_entries()
1299 				get_bh(bh);  in fat_add_entries()
1300 				bhs[nr_bhs] = prev = bh;  in fat_add_entries()
1371 					      &de, &bh, &i_pos);  in fat_add_entries()
1391 	sinfo->bh = bh;  in fat_add_entries()
1392 	sinfo->i_pos = fat_make_i_pos(sb, sinfo->bh, sinfo->de);  in fat_add_entries()
1397 	brelse(bh);  in fat_add_entries()
1403 	brelse(bh);  in fat_add_entries()