make simple_positive() public

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index b2c8b31..b9108f4 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1771,7 +1771,7 @@
 
 static void nfs_dentry_handle_enoent(struct dentry *dentry)
 {
-	if (d_really_is_positive(dentry) && !d_unhashed(dentry))
+	if (simple_positive(dentry))
 		d_delete(dentry);
 }