taglinefilesource code
prev_znr252fs/xiafs/bitmap.cint prev_znr, tmp;
prev_znr262fs/xiafs/bitmap.cprev_znr=prev_addr-sb->u.xiafs_sb.s_firstdatazone+1;
prev_znr263fs/xiafs/bitmap.ctmp=get_free_zbit(sb, prev_znr);