From 3f8e978e5546b2560ac7813486fc5afcae5bbac9 Mon Sep 17 00:00:00 2001
From: Venky Shankar <vshankar@redhat.com>
Date: Tue, 28 Oct 2025 05:23:32 +0000
Subject: [PATCH] mds: session reclaim could miss blocklisting an old session

Fixes: https://tracker.ceph.com/issues/66003
Signed-off-by: Venky Shankar <vshankar@redhat.com>
---
 src/mds/Server.cc | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/mds/Server.cc b/src/mds/Server.cc
index dd385f050fc..8acac182fe7 100644
--- a/src/mds/Server.cc
+++ b/src/mds/Server.cc
@@ -653,7 +653,11 @@ void Server::handle_client_session(const cref_t<MClientSession> &m)
     if (!session->client_opened) {
       session->client_opened = true;
     }
-    if (session->is_opening() ||
+    if (session->is_closing()) {
+      mdlog->wait_for_safe(
+        new MDSInternalContextWrapper(mds, new C_MDS_RetryMessage(mds, m)));
+      return;
+    } else if (session->is_opening() ||
 	session->is_open() ||
 	session->is_stale() ||
 	session->is_killing() ||
-- 
2.39.5