taglinefilesource code
s_firstfreeblock96fs/ext/inode.cs->u.ext_sb.s_zmap[0] = (struct buffer_head *) es->s_firstfreeblock;
s_firstfreeblock187fs/ext/inode.ces->s_firstfreeblock = (unsigned long) sb->u.ext_sb.s_zmap[0];
s_firstfreeblock57include/linux/ext_fs.hunsigned long s_firstfreeblock;