Add d_type information to legacy readdir system call

fs/readdir.c

@@ -139,7 +139,7 @@ static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
 {
 	struct linux_dirent __user * dirent;
 	struct getdents_callback * buf = (struct getdents_callback *) __buf;
-	int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1);
+	int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 2);
 
 	buf->error = -EINVAL;	/* only used if we fail.. */
 	if (reclen > buf->count)
@@ -158,6 +158,8 @@ static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
 		goto efault;
 	if (__put_user(0, dirent->d_name + namlen))
 		goto efault;
+	if (__put_user(d_type, (char *) dirent + reclen - 1))
+		goto efault;
 	buf->previous = dirent;
 	dirent = (void *)dirent + reclen;
 	buf->current_dir = dirent;