Get "no acls for this inode" right, fix shmem breakage

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c
index edd2ad6..8fcb62392 100644
--- a/fs/jffs2/acl.c
+++ b/fs/jffs2/acl.c
@@ -284,8 +284,7 @@
 	struct posix_acl *acl, *clone;
 	int rc;
 
-	inode->i_default_acl = NULL;
-	inode->i_acl = NULL;
+	cache_no_acl(inode);
 
 	if (S_ISLNK(*i_mode))
 		return 0;	/* Symlink always has no-ACL */