From ef97ccd0fc64ccab2ac04157928432b61be4f8f6 Mon Sep 17 00:00:00 2001
From: Namjae Jeon <linkinjeon@kernel.org>
Date: Tue, 19 Dec 2023 00:33:22 +0900
Subject: [PATCH] ksmbd: call ib_drain_qp when disconnected

[ Upstream commit 141fa9824c0fc11d44b2d5bb1266a33e95fa67fd ]

When disconnected, call ib_drain_qp to cancel all pending work requests
and prevent ksmbd_conn_handler_loop from waiting for a long time
for those work requests to compelete.

Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Reviewed-by: Tom Talpey <tom@talpey.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ksmbd/transport_rdma.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/ksmbd/transport_rdma.c b/fs/ksmbd/transport_rdma.c
index 652391aee7330..68077150ad2f6 100644
--- a/fs/ksmbd/transport_rdma.c
+++ b/fs/ksmbd/transport_rdma.c
@@ -1527,6 +1527,8 @@ static int smb_direct_cm_handler(struct rdma_cm_id *cm_id,
 	}
 	case RDMA_CM_EVENT_DEVICE_REMOVAL:
 	case RDMA_CM_EVENT_DISCONNECTED: {
+		ib_drain_qp(t->qp);
+
 		t->status = SMB_DIRECT_CS_DISCONNECTED;
 		wake_up_interruptible(&t->wait_status);
 		wake_up_interruptible(&t->wait_reassembly_queue);
-- 
2.47.3