romfs_maxsize
limit = romfs_maxsize(sb);
limit = romfs_maxsize(sb);
limit = romfs_maxsize(sb);
maxoff = romfs_maxsize(i->i_sb);
maxoff = romfs_maxsize(dir->i_sb);
(romfs_maxsize(dentry->d_sb) + ROMBSIZE - 1) >> ROMBSBITS;