switch d_materialise_unique() users to d_splice_alias()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 8fd2a95..586e3d3 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -123,7 +123,7 @@
 	if (!inode)
 		goto out;
 
-	alias = d_materialise_unique(dentry, inode);
+	alias = d_splice_alias(inode, dentry);
 	if (alias && !IS_ERR(alias))
 		dput(alias);
 out: