uml/hostfs: Propagate dirent.d_type to filldir()

Currently the (optional) d_type member in struct dirent is always
DT_UNKNOWN on hostfs, which may confuse buggy software using readdir().
Make sure to propagate its value from the underlying filesystem if it's
available there.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
diff --git a/fs/hostfs/hostfs_user.c b/fs/hostfs/hostfs_user.c
index dd7bc38..a74ad0d 100644
--- a/fs/hostfs/hostfs_user.c
+++ b/fs/hostfs/hostfs_user.c
@@ -98,7 +98,8 @@
 }
 
 char *read_dir(void *stream, unsigned long long *pos,
-	       unsigned long long *ino_out, int *len_out)
+	       unsigned long long *ino_out, int *len_out,
+	       unsigned int *type_out)
 {
 	DIR *dir = stream;
 	struct dirent *ent;
@@ -109,6 +110,7 @@
 		return NULL;
 	*len_out = strlen(ent->d_name);
 	*ino_out = ent->d_ino;
+	*type_out = ent->d_type;
 	*pos = telldir(dir);
 	return ent->d_name;
 }